Fixing device for transmission supporting beam

Abstract

The invention discloses a fixing device for a transmission supporting beam. The fixing device comprises a first fixing pipe, a second fixing pipe, a mounting assembly and a cushion fixing assembly. The mounting assembly comprises two mounting supports and a reinforcing support, the two mounting supports are arranged at the two ends of the first fixing pipe and the two ends of the second fixing pipe correspondingly and used for mounting the first fixing pipe and the second fixing pipe to a vehicle body, the reinforcing support is arranged between the two mounting supports in a spaced mode, and the two ends of the reinforcing support are connected with the first fixing pipe and the second fixing pipe correspondingly. The cushion fixing assembly comprises a connecting support and a connecting plate, the connecting support is arranged between the first fixing pipe and the second fixing pipe, the two ends of the connecting support are connected with the first fixing pipe and the second fixing pipe respectively, the connecting support is used for fixing a cushion, and the connecting plate is connected with the bottom of the connecting support. The bearing capacity of the transmission supporting beam is improved, the overall rigidity is increased, and the inherent frequency of the structure is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle transmission, more particularly, to a fixing device of a transmission support beam. BACKGROUND

[0002] In a modern powertrain longitudinal vehicle, the transmission is generally connected to the vehicle body through a transmission support beam using bolts after being damped by a transmission suspension, and the transmission is supported at a designed position. Since the transmission suspension is closer to the cab than the engine suspension, vibrations and noises are more likely to be transmitted to the cab through the transmission support beam and perceived by the user. The transmission support beam has generally four mounting points on the vehicle body, and the X-direction span of the transmission support beam mounting points is generally greater than about 160mm to ensure the generalization of the vehicle body, and the Y-direction span can reach 900mm. Since the span of the transmission support beam mounting points is large, the natural frequency is generally not high, and the mounting on the vehicle body is generally about 100HZ. The transmission support beam assembly needs to have certain strength to meet the support requirements and high natural frequency to ensure that the transmission support beam is not easily excited to resonance by excitation from the automobile drive train.

[0003] However, the overall structure of the existing circular tube beam has a step in front of the tube beam, which is basically the bending mode and the overturning mode around the Y direction. If the natural frequency needs to be improved to meet the resonance requirements, it is difficult to increase the resonance block or strengthen the tube beam arrangement, and the weight of the system is increased. In addition, a single circular tube beam is connected to the transmission support beam vehicle body mounting bracket, and to achieve the required natural frequency, the circular tube beam needs a thicker wall thickness and a larger outer diameter, and additional transmission support beam reinforcing brackets are needed to increase the stiffness of the connection structure. Since the parts are arranged under the chassis, the Z-direction height limit is relatively large, which is not conducive to the lightweight requirements and arrangement requirements of the vehicle.

[0004] Therefore, how to provide a fixing device of a transmission support beam has become a technical problem to be solved in the field. SUMMARY

[0005] An object of the present application is to provide a new technical solution for a fixing device of a transmission support beam.

[0006] According to a first aspect of the present application, a fixing device of a transmission support beam is provided, comprising: a first fixing pipe, a second fixing pipe, a mounting assembly, and a soft pad fixing assembly;

[0007] The mounting assembly comprises two mounting brackets and a reinforcing bracket, the two mounting brackets are respectively arranged at both ends of the first fixing pipe and the second fixing pipe, and are used for mounting the first fixing pipe and the second fixing pipe to the vehicle body, and the reinforcing bracket is arranged between the two mounting brackets and connected to the first fixing pipe and the second fixing pipe at both ends.

[0008] The soft cushion fixing assembly comprises a connecting support and a connecting plate, the connecting support is arranged at the middle position of the first fixing pipe and the second fixing pipe, and two ends of the connecting support are connected with the first fixing pipe and the second fixing pipe respectively, the connecting support is used for fixing the soft cushion, and the connecting plate is connected with the bottom of the connecting support.

[0009] Optionally, the mounting support comprises a first mounting plate and two first fixing plates, the first side walls of the two first fixing plates are connected with the two sides of the first mounting plate respectively, two mounting grooves are arranged on the second side walls of the first fixing plates, the diameters of the mounting grooves are equal to the diameters of the first fixing pipe and the second fixing pipe, and the first fixing pipe and the second fixing pipe are arranged in the mounting grooves.

[0010] Optionally, two first mounting holes are arranged at the two ends of the first mounting plate respectively, and the mounting grooves are located between the two first mounting holes.

[0011] Optionally, the reinforcing support comprises a second mounting plate and two second fixing plates, the two second fixing plates are connected with the two sides of the second mounting plate respectively, and the two ends of the second fixing plates are provided with first arc-shaped grooves, and the first arc-shaped grooves are connected with the first fixing pipe and the second fixing pipe.

[0012] Optionally, a waist-shaped opening and a ring-shaped limiting plate are arranged on the second mounting plate, the waist-shaped opening is arranged at the center position of the second mounting plate, and the ring-shaped limiting plate is located at the bottom of the second mounting plate and connected with the waist-shaped opening.

[0013] Optionally, the connecting support comprises a supporting plate, limiting ribs and a third fixing plate, the third fixing plate is arranged at the two ends of the supporting plate respectively, and the two ends of the third fixing plate are provided with second arc-shaped grooves, the arc-shaped grooves are connected with the first fixing pipe and the second fixing pipe, and the limiting ribs are arranged at the two sides of the supporting plate and connected with the first fixing pipe and the second fixing pipe.

[0014] Optionally, the connecting support further comprises a connecting sleeve, a first connecting hole and a second connecting hole, the first connecting hole is arranged at the two ends of the supporting plate, the second connecting hole is arranged at the two ends of the connecting plate correspondingly, and the two ends of the connecting sleeve are connected with the first connecting hole and the second connecting hole respectively.

[0015] Optionally, a first opening and a convex body are arranged at the center position of the supporting plate, and the convex body is connected with the first opening.

[0016] Optionally, a second opening is arranged at the center position of the connecting plate, and the opening is located between the two second connecting holes.

[0017] The beneficial effects of the present invention are:

[0018] The present invention employs two mounting brackets disposed at either end of a first and second fixed tube, a reinforcement bracket spaced between the two mounting brackets, and a connecting bracket disposed midway between the first and second fixed tubes, with both ends connected to the first and second fixed tubes. By arranging the mounting brackets and multiple reinforcement brackets on the first and second fixed tubes, and by arranging the connecting bracket and connecting plate midway between the first and second fixed tubes, the present invention improves the load-bearing capacity of the transmission support beam, increases overall rigidity, and raises the natural frequency of the structure.

[0019] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0021] Figure 1 A structural diagram of a fixing device for a transmission support beam of the present invention;

[0022] Figure 2 A structural diagram of the mounting bracket of the present invention;

[0023] Figure 3 A structural diagram of the reinforcement bracket of the present invention;

[0024] Figure 4 is a structural diagram of the cushion fixing assembly of the present invention;

[0025] Figure 5 It is a structural diagram of the connecting bracket of the present invention.

[0026] The markings in the figure are as follows: 1. First fixed tube; 2. Second fixed tube; 3. Mounting assembly; 31. Mounting bracket; 311. First mounting plate; 312. First fixing plate; 313. Mounting groove; 314. First mounting hole; 32. Reinforcement bracket; 321. Second mounting plate; 322. Second fixing plate; 323. First arc-shaped groove; 324. Waist-shaped opening; 325. Annular limiting plate; 4. Cushion fixing assembly; 41. Connecting bracket; 411. Support plate; 412. Limiting rib; 413. Third fixing plate; 414. Second arc-shaped groove; 415. First opening; 416. Protrusion; 42. Connecting plate; 421. Second opening; 43. Connecting sleeve; 44. First connecting hole; 45. Second connecting hole. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps illustrated in these embodiments, numerical expressions, and numerical values set forth herein are not limiting of the scope of the present application unless otherwise specifically indicated.

[0028] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application, its application, or uses.

[0029] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be considered part of the specification.

[0030] In all of the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not limiting. Other examples of the exemplary embodiments can have different values.

[0031] As shown in the drawings, Figures 1 to 5 The embodiment of the present application provides a fixing device of a transmission support beam, which comprises a first fixing pipe 1, a second fixing pipe 2, a mounting assembly 3 and a soft pad fixing assembly 4.

[0032] The mounting assembly 3 comprises two mounting brackets 31 and a reinforcing bracket 32, the two mounting brackets 31 are respectively arranged at two ends of the first fixing pipe 1 and the second fixing pipe 2, and are used for mounting the first fixing pipe 1 and the second fixing pipe 2 to a vehicle body, and the reinforcing bracket 32 is arranged between the two mounting brackets 31 and connected with the first fixing pipe 1 and the second fixing pipe 2 at two ends.

[0033] The soft pad fixing assembly 4 comprises a connecting bracket 41 and a connecting plate 42, the connecting bracket 41 is arranged at a middle position of the first fixing pipe 1 and the second fixing pipe 2, and connected with the first fixing pipe 1 and the second fixing pipe 2 at two ends, the connecting bracket 41 is used for fixing a soft pad, and the connecting plate 42 is connected with a bottom of the connecting bracket 41.

[0034] The mounting bracket 31 is arranged at two ends of the first fixed pipe 1 and the second fixed pipe 2 respectively, the reinforcing bracket 32 is arranged at intervals between the two mounting brackets 31, and the two ends are connected with the first fixed pipe 1 and the second fixed pipe 2 respectively, and the connecting bracket 41 is arranged at the middle position of the first fixed pipe 1 and the second fixed pipe 2, and the two ends are connected with the first fixed pipe 1 and the second fixed pipe 2 respectively. The mounting bracket 31 and the plurality of reinforcing brackets 32 are arranged on the first fixed pipe 1 and the second fixed pipe 2, and the connecting bracket 41 and the connecting plate 42 are arranged at the middle position of the first fixed pipe 1 and the second fixed pipe 2, so that the load bearing of the transmission support beam is improved, the overall rigidity is increased, and the inherent frequency of the structure is improved.

[0035] In an embodiment of the transmission support beam fixing device of the application, as shown in Figure 1 、 Figure 2 and Figure 3 , the mounting bracket 31 comprises a first mounting plate 311 and two first fixing plates 312, the first side walls of the two first fixing plates 312 are connected with the two sides of the first mounting plate 311 respectively, two mounting grooves 313 are arranged on the second side walls of the first fixing plates 312, the diameters of the mounting grooves 313 are equal to the diameters of the first fixed pipe 1 and the second fixed pipe 2, and the first fixed pipe 1 and the second fixed pipe 2 are arranged in the mounting grooves 313.

[0036] The first side walls of the two first fixing plates 312 are connected with the two sides of the first mounting plate 311 respectively, and the first fixed pipe 1 and the second fixed pipe 2 are arranged in the mounting grooves 313, and then the first fixing plates 312 are used to limit the first fixed pipe 1 and the second fixed pipe 2, and the first mounting plate 311 is used to fix the first fixed pipe 1 and the second fixed pipe 2, so that the stability of the installation of the first fixed pipe 1 and the second fixed pipe 2 is effectively increased.

[0037] In an embodiment of the transmission support beam fixing device of the application, as shown in Figure 2 , the two ends of the first mounting plate 311 are respectively provided with first mounting holes 314, and the mounting grooves 313 are located between the two first mounting holes 314.

[0038] Specifically, the first mounting plate 311 is fixed on the vehicle body by the first fastening bolt penetrating through the first mounting hole 314, so that the stability is improved.

[0039] In an embodiment of the transmission support beam fixing device of the application, as shown in Figure 3As shown, the reinforcing support 32 comprises a second mounting plate 321 and two second fixing plates 322, the two second fixing plates 322 are connected with two sides of the second mounting plate 321 respectively, and the two ends of the second fixing plate 322 are provided with a first arc-shaped groove 323, and the first arc-shaped groove 323 is connected with the first fixing pipe 1 and the second fixing pipe 2.

[0040] The second mounting plate 321 is provided with a waist-shaped opening 324 and an annular limiting plate 325, the waist-shaped opening 324 is arranged at the center position of the second mounting plate 321, the annular limiting plate 325 is located at the bottom of the second mounting plate 321 and is connected with the waist-shaped opening 324.

[0041] In one embodiment of the transmission support beam fixing device of the present application, as shown in Figure 3 The second mounting plate 321 is provided with a waist-shaped opening 324 and an annular limiting plate 325, the waist-shaped opening 324 is arranged at the center position of the second mounting plate 321, the annular limiting plate 325 is located at the bottom of the second mounting plate 321 and is connected with the waist-shaped opening 324.

[0042] The second mounting plate 321 is provided with a waist-shaped opening 324 and an annular limiting plate 325, the waist-shaped opening 324 is arranged at the center position of the second mounting plate 321, the annular limiting plate 325 is located at the bottom of the second mounting plate 321 and is connected with the waist-shaped opening 324.

[0043] In one embodiment of the transmission support beam fixing device of the present application, as shown in Figure 1 、 Figure 4 and Figure 5 The connecting support 41 comprises a supporting plate 411, a limiting rib 412 and a third fixing plate 413, the third fixing plate 413 is arranged at the two ends of the supporting plate 411 respectively, and the two ends of the third fixing plate 413 are provided with a second arc-shaped groove 414, the arc-shaped groove is connected with the first fixing pipe 1 and the second fixing pipe 2, and the limiting rib 412 is arranged at the two sides of the supporting plate 411 and is connected with the first fixing pipe 1 and the second fixing pipe 2.

[0044] The second mounting plate 321 is provided with a waist-shaped opening 324 and an annular limiting plate 325, the waist-shaped opening 324 is arranged at the center position of the second mounting plate 321, the annular limiting plate 325 is located at the bottom of the second mounting plate 321 and is connected with the waist-shaped opening 324.

[0045] In one embodiment of the fixing device of the transmission support beam of the present application, as shown in Figure 4 and Figure 5 The connecting bracket 41 further comprises a connecting sleeve 43, a first connecting hole 44 and a second connecting hole 45. The first connecting hole 44 is arranged at both ends of the support plate 411, and the second connecting hole 45 is arranged at both ends of the connecting plate 42 correspondingly. The two ends of the connecting sleeve 43 are connected with the first connecting hole 44 and the second connecting hole 45 respectively.

[0046] Specifically, the first connecting hole 44 is used for mounting a soft pad.

[0047] The present application can stably mount the connecting sleeve 43 on the support plate 411 and the connecting plate 42 by arranging the first connecting hole 44 at both ends of the support plate 411, arranging the second connecting hole 45 at both ends of the connecting plate 42 correspondingly, and connecting the two ends of the connecting sleeve 43 with the first connecting hole 44 and the second connecting hole 45 respectively.

[0048] In one embodiment of the fixing device of the transmission support beam of the present application, as shown in Figure 4 Figure 5 The center of the support plate 411 is provided with a first opening 415 and a convex body 416. The convex body 416 is connected with the first opening 415. This arrangement can reduce the weight of the support plate 411, and further provide a limiting and fixing effect on the first fixing tube 1 and the second fixing tube 2 through the abutment of the convex body 416 with the first fixing tube 1 and the second fixing tube 2.

[0049] In one embodiment of the fixing device of the transmission support beam of the present application, the center of the connecting plate 42 is provided with a second opening 421. The opening is located between the two second connecting holes 45. This arrangement can reduce the weight of the connecting plate 42.

[0050] Although some specific embodiments of the present application have been described in detail above, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A fixing device for a transmission support beam, characterized in that: include: a first fixing tube, a second fixing tube, a mounting assembly, and a cushion fixing assembly; The mounting assembly includes two mounting brackets and a reinforcement bracket. The two mounting brackets are respectively arranged at both ends of the first fixing tube and the second fixing tube, and are used to mount the first fixing tube and the second fixing tube to the vehicle body. The reinforcement bracket is spaced between the two mounting brackets and has its two ends connected to the first fixing tube and the second fixing tube respectively. The cushion fixing assembly includes a connecting bracket and a connecting plate. The connecting bracket is arranged in the middle position between the first fixing tube and the second fixing tube, and its two ends are respectively connected to the first fixing tube and the second fixing tube. The connecting bracket is used to fix the cushion, and the connecting plate is connected to the bottom of the connecting bracket.

2. The fixing device for the transmission support beam according to claim 1, characterized in that: The mounting bracket includes a first mounting plate and two first fixing plates, the first side walls of the two first fixing plates are respectively connected to the two sides of the first mounting plate, and two mounting grooves are provided on the second side walls of the first fixing plate. The diameter of the mounting groove is equal to the diameter of the first fixing tube and the diameter of the second fixing tube, and the first fixing tube and the second fixing tube are both arranged in the mounting groove.

3. The fixing device for the transmission support beam according to claim 2, characterized in that: The first mounting plate is provided with first mounting holes at both ends, and the mounting slot is located between the two first mounting holes.

4. The fixing device for the transmission support beam according to claim 1, characterized in that: The reinforcing bracket includes a second mounting plate and two second fixing plates, the two second fixing plates are respectively connected to the two sides of the second mounting plate, and first arc-shaped grooves are provided at both ends of the second fixing plate, and the first arc-shaped grooves are connected to the first fixing tube and the second fixing tube.

5. The fixing device for the transmission support beam according to claim 4, characterized in that: The second mounting plate is provided with a waist-shaped opening and an annular limiting plate. The waist-shaped opening is provided at the center of the second mounting plate. The annular limiting plate is located at the bottom of the second mounting plate and is connected to the waist-shaped opening.

6. The fixing device for the transmission support beam according to claim 1, characterized in that: The connecting bracket includes a support plate, a limiting rib and a third fixing plate, the third fixing plate is respectively arranged at both ends of the support plate, and a second arc-shaped groove is provided at both ends of the third fixing plate, the arc-shaped groove is connected to the first fixing tube and the second fixing tube, the limiting rib is provided on both sides of the support plate, and is connected to the first fixing tube and the second fixing tube.

7. The fixing device for the transmission support beam according to claim 6, characterized in that: The connecting bracket also includes a connecting sleeve, a first connecting hole and a second connecting hole. The first connecting hole is arranged at both ends of the support plate, and the second connecting hole is correspondingly arranged at both ends of the connecting plate. The two ends of the connecting sleeve are respectively connected to the first connecting hole and the second connecting hole.

8. The fixing device for the transmission support beam according to claim 6, characterized in that: A first opening and a convex body are provided at the center of the support plate, and the convex body is connected to the first opening.

9. The fixing device for a transmission support beam according to claim 7, characterized in that: A second opening is provided at the center of the connecting plate, and the opening is located between the two second connecting holes.

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