A transmission support connection structure

Abstract

This invention relates to a transmission support connection structure, including a pad assembly, a transmission rear end cover, a central fixing ball pin, a central pad, a fixing nut, and a fixing bracket. The central fixing ball pin is pressed into the central pad, and the central fixing ball pin and the central pad are pressed into the circular hole of the transmission rear end cover. The pad assembly is fitted onto the central fixing ball pin through the central hole and pressed into the bottom square hole of the transmission rear end cover. The central fixing ball pin is inserted into the mounting hole of the fixing bracket, and the fixing nut engages with the threaded portion of the central fixing ball pin. This invention enables rapid assembly of the transmission rear support, requiring only one nut to complete the installation of the transmission support connection, thus improving assembly efficiency. Furthermore, due to its compact structure, it reduces the space occupied by the transmission fixed support connection structure in the height direction, increasing the ground clearance of the transmission support crossbeam. This solves the problems of low assembly efficiency and poor vehicle passability associated with existing connection structures.

Description

Technical Field

[0001] This invention belongs to the field of transmission technology, and specifically relates to a transmission support connection structure. Background Technology

[0002] A car's transmission is typically fixed to the chassis via its rear end, and uses soft padding for shock absorption. For example... Figure 1 The diagram shows a gearbox fixing support connection structure for a light passenger vehicle. The soft pad assembly 04 is fixed to the gearbox assembly 01 via a transition bracket 03, and then they are fixed together to the soft pad fixing bracket 08 on the gearbox support crossbeam.

[0003] Because the transition bracket 03 needs to be fixed to the transmission assembly 01 by two transition bracket mounting bolts 05, and the pad assembly 04 needs to be fixed to the transition bracket 03 by four sets of pad assembly first fixing bolts and nuts 02, and also requires four sets of pad assembly second fixing bolts and nuts 07, the assembly efficiency is low. In addition, the structure is more complex and occupies more space in the height direction, which makes the position of the pad fixing bracket 08 on the transmission support crossbeam lower, resulting in a lower height of the transmission support crossbeam from the ground and poorer passability of the whole vehicle. Summary of the Invention

[0004] The purpose of this invention is to provide a transmission support connection structure. By changing the fixing method of the soft pad assembly, the connection structure is simplified, the space occupied by the transmission fixed support connection structure in the height direction is reduced, the assembly efficiency and the ground clearance of the transmission support crossbeam are improved, and the problems of low assembly efficiency and poor vehicle passability of the existing connection structure are mainly solved.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] A transmission support connection structure includes a pad assembly, a transmission rear end cover, a central fixing ball pin, a central pad, a fixing nut, and a fixing bracket;

[0007] The soft pad assembly is provided with a central hole, and the rear end cover of the transmission is provided with a bottom square hole, a groove and a round hole; the central fixing ball pin includes a threaded part, a limiting surface, a neck and a ball part, and the limiting surface is provided between the threaded part and the neck.

[0008] The central pad is provided with a conical hole and a ball seat hole, and the conical hole communicates with the ball seat hole; the fixed bracket is provided with mounting holes;

[0009] The central fixing ball pin is pressed into the central soft pad, and the central fixing ball pin and the central soft pad are pressed into the round hole of the rear end cover of the transmission. The soft pad assembly is sleeved on the central fixing ball pin through the central hole and pressed into the bottom square hole of the rear end cover of the transmission. The central fixing ball pin is inserted into the mounting hole of the fixing bracket and the fixing nut is engaged with the threaded part of the central fixing ball pin.

[0010] Furthermore, the ball part of the center fixing pin presses into the ball seat hole of the center pad, and the neck of the center fixing pin enters the conical hole on the center pad.

[0011] Furthermore, the outer side of the central pad mates with the round hole on the rear cover of the transmission, and the neck of the central fixing ball pin aligns with the slot on the rear cover of the transmission.

[0012] Furthermore, the central hole on the pad assembly restricts the central pad and the central fixing ball pin from moving back and forth in the round hole on the rear end cover of the transmission, forming an interlock and achieving flexible fixation of the central fixing ball pin on the rear end cover of the transmission.

[0013] Furthermore, the cushion assembly includes a cushion assembly body, which is a cuboid structure with rounded corners at all four ends.

[0014] Furthermore, the central cushion includes a cushion body, which is a cylinder with an axial portion cut, and the tapered hole opens on the cutting plane.

[0015] Furthermore, the centerlines of the conical hole and the ball seat hole coincide and are perpendicular to the axial centerline of the cushion body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention enables rapid assembly of the rear transmission support, requiring only one nut to complete the installation of the transmission support connection, thus improving assembly efficiency. Furthermore, its compact structure reduces the space occupied by the transmission fixed support connection structure in the vertical direction, increasing the ground clearance of the transmission support crossbeam. This solves the problems of low assembly efficiency and poor vehicle passability associated with existing connection structures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a transmission support connection structure in the present technology.

[0019] Figure 2 This is a schematic diagram of the transmission support connection structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the soft pad assembly structure of the present invention.

[0021] Figure 4This is a schematic diagram of the transmission rear end cover structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the central fixing ball pin of the present invention.

[0023] Figure 6 This is a schematic diagram of the central cushion structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the fixed support structure of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 01. Transmission assembly; 02. First fixing bolt and nut of pad assembly; 03. Transition bracket; 04. Pad assembly; 05. Transition bracket mounting bolt; 06. Pad fixing nut; 07. Second fixing bolt and nut of pad assembly; 08. Pad fixing bracket on transmission support beam; 1. Pad assembly; 2. Transmission rear end cover; 3. Center fixing ball pin; 4. Center pad; 5. Fixing nut; 6. Fixing bracket; 11. Side; 12. Center hole; 13. End face; 21. Bottom square hole; 22. Upper end face of bottom square hole; 23. Groove; 24. Round hole; 31. Threaded part; 32. Limiting surface; 33. Neck; 34. Ball part; 41. Cylindrical surface; 42. Tapered hole; 43. Ball seat hole; 44. Cutting plane; 61. Top plane; 62. Mounting hole. Detailed Implementation

[0027] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention.

[0028] like Figure 2 As shown, this application provides a transmission support connection structure, including a soft pad assembly, a transmission rear end cover, a central fixing ball pin, a central soft pad, a fixing nut, and a fixing bracket.

[0029] like Figure 3 The diagram shows a schematic of the soft pad assembly structure. The soft pad assembly 1 of this application includes a soft pad assembly body, which is a cuboid structure with rounded corners on all four sides. A central hole 12 is provided on the soft pad assembly body. The thickness of the soft pad assembly body of this application is the side surface 11, and the end face 13 is perpendicular to the central hole.

[0030] like Figure 4The diagram shows the structure of the transmission rear end cover. In the technical solution of this application, except for the installation position, no other parts have been improved. Therefore, the specific structure of the transmission rear end cover is not described in detail. The transmission rear end cover of this application is provided with a bottom square hole 21, a groove 23 and a round hole 24, and the bottom square hole, groove and round hole are interconnected.

[0031] like Figure 5 The diagram shows the structure of the central fixing ball pin. The central fixing ball pin 3 of this application is composed of a threaded part 31, a neck 33 and a ball part 34 in sequence, and a limiting surface 32 is provided between the threaded part and the neck.

[0032] like Figure 6 The diagram shows the structure of the central pad. The central pad 4 includes a pad body, which is a cylinder with an axial portion cut. The conical hole 42 opens on the cutting plane 44. The center lines of the conical hole 42 and the ball seat hole 43 coincide and are perpendicular to the axial center line of the pad body.

[0033] like Figure 7 The diagram shown is a structural schematic of the fixed bracket. In the technical solution of this application, the fixed bracket 6 has not been improved. The fixed bracket is provided with mounting holes 62, so the fixed bracket will not be described in detail.

[0034] The specific installation steps are as follows:

[0035] First, press the ball portion 34 of the center fixing ball pin 3 into the ball seat 43 on the center pad 4. The neck 33 of the center fixing ball pin 3 enters the tapered hole 42 on the center pad 4. Then, align the cylindrical surface 41 of the center pad 4 with the circular hole 24 on the rear end cover 2 of the transmission. Align the neck 33 of the center fixing ball pin 3 with the slot 23 on the rear end cover 2 of the transmission. Press the center pad 4 and the center fixing ball pin 3 together into the circular hole 24 on the rear end cover 2 of the transmission. Next, slide the center hole 12 on the pad assembly 1 through the threaded portion 31 of the center fixing ball pin 3 onto the center fixing ball pin 3. Press the pad assembly 1 into the bottom square hole 21 on the rear end cover 2 of the transmission until the pad assembly is fully inserted. The end face 13 on the soft pad assembly 1 is in contact with the upper end face 22 of the bottom square hole on the rear end cover 2 of the transmission. The side face 11 on the soft pad assembly 1 is in contact with the side face of the bottom square hole 21 on the rear end cover 2 of the transmission. The center hole 12 on the soft pad assembly 1 restricts the movement of the center soft pad 4 and the center fixing ball pin 3 in the round hole 24 on the rear end cover 2 of the transmission, forming an interlock and completing the flexible fixation of the center fixing ball pin 3 on the rear end cover 2 of the transmission. Then, the threaded part 31 of the center fixing ball pin 3 is inserted into the mounting hole 62 on the fixing bracket 6 until the limiting surface 32 on the center fixing ball pin 3 and the soft pad assembly 1 are in contact with the upper surface 61 on the fixing bracket 6. Tighten the fixing nut 5 to complete the assembly.

[0036] Since only one fixing nut is needed to complete the installation of the transmission support connection, assembly efficiency is improved. At the same time, the compact structure reduces the space occupied by the transmission fixed support connection structure in the vertical direction, increasing the ground clearance of the transmission support crossbeam. This solves the problems of low assembly efficiency and poor vehicle passability associated with existing connection structures.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission support connection structure, characterized in that, Includes the soft pad assembly, transmission rear cover, center fixing ball pin, center soft pad, fixing nut and fixing bracket; The soft pad assembly is provided with a central hole, and the rear end cover of the transmission is provided with a bottom square hole, a groove and a round hole; the central fixing ball pin includes a threaded part, a limiting surface, a neck and a ball part, and the limiting surface is provided between the threaded part and the neck. The central pad is provided with a conical hole and a ball seat hole, and the conical hole communicates with the ball seat hole; the fixed bracket is provided with mounting holes; The central fixing ball pin is pressed into the central soft pad, and the central fixing ball pin and the central soft pad are pressed into the round hole of the rear end cover of the transmission. The soft pad assembly is sleeved on the central fixing ball pin through the central hole and pressed into the bottom square hole of the rear end cover of the transmission. The central fixing ball pin is inserted into the mounting hole of the fixing bracket and the fixing nut is engaged with the threaded part of the central fixing ball pin. The outer side of the center pad mates with the round hole on the rear cover of the transmission, and the neck of the center fixing ball pin aligns with the slot on the rear cover of the transmission. The central cushion includes a cushion body, which is a cylinder with an axial portion cut, and the conical hole opens on the cutting plane.

2. The transmission support connection structure according to claim 1, characterized in that, The ball part of the center fixing pin is pressed into the ball seat hole of the center pad, and the neck of the center fixing pin enters the conical hole on the center pad.

3. The transmission support connection structure according to claim 1, characterized in that, The center hole on the pad assembly restricts the center pad and the center fixing ball pin from moving back and forth in the round hole on the rear end cover of the transmission, forming an interlock and achieving flexible fixation of the center fixing ball pin on the rear end cover of the transmission.

4. The transmission support connection structure according to claim 1, characterized in that, The cushion assembly includes a cushion assembly body, which is a cuboid structure with rounded corners at all four corners.

5. The transmission support connection structure according to claim 1, characterized in that, The centerlines of the conical hole and the ball seat hole coincide and are perpendicular to the axial centerline of the cushion body.

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