CN216895673U - The connection and assembly structure of coaxial multi-parts - Google Patents

Abstract

The utility model relates to a connecting and assembling structure of coaxial multi-parts. It includes a transmission connection flange, a transmission shaft connection flange and a torsional vibration damper. A radial positioning shaft is arranged on the end face of the transmission connection flange, a limiting boss is arranged on the radial positioning shaft, and a transmission shaft connection flange is provided with a A first radial positioning hole, a first limiting groove is formed on the circumferential surface of the first radial positioning hole, a second radial positioning hole is formed on the torsional shock absorber, and a second radial positioning hole is formed on the circumferential surface of the second radial positioning hole. Two limit grooves, the transmission shaft connecting flange and the torsional vibration damper are respectively sleeved on the radial positioning shaft through the first and second radial positioning holes to fit the radial positioning shaft with clearance, and are connected with the transmission through bolts. blue connection, the limiting boss is located in the first limiting groove and the second limiting groove and is clearance fit with the first limiting groove and the second limiting groove. The utility model can smoothly perform the connection and assembly of the transmission connection flange, the transmission shaft connection flange and the torsional vibration absorber.

Description

The connection and assembly structure of coaxial multi-parts

technical field

The utility model relates to a door lock, in particular to a coaxial multi-part connecting and assembling structure.

Background technique

When connecting two flanges with bolts, the two flanges are usually positioned through the middle positioning hole and the positioning shaft, and then one of the flanges is rotated to align the bolt holes before connecting and fixing. At this time, if a third connector is added between the two flanges, the three parts are still positioned according to the previous intermediate positioning holes and positioning shafts, and the second part needs to be bolted after being installed on the first part. Align the holes, and then install the third part. At this time, it is necessary to align the bolt holes of the three parts. At this time, if any part is rotated, the other two parts may rotate along with it, which will cause damage to the aligned bolt holes. Obstruction, thereby affecting the assembly rhythm and reducing assembly efficiency. For example, the connection between the transmission connection flange, the transmission shaft connection flange and the torsional vibration damper commonly used at present is that a radial positioning shaft is arranged on the end face of the transmission connection flange, and a first radial positioning shaft is arranged on the transmission shaft connection flange. Positioning holes, a second radial positioning hole is opened on the torsional vibration damper, and four bolt holes corresponding to the positions of the transmission connection flange and the transmission shaft connection flange, the transmission shaft connection flange and the torsional vibration damper are opened. The first and second radial positioning holes are respectively sleeved on the radial positioning shaft of the transmission connecting flange to fit with the radial positioning shaft, and are connected with the transmission connecting flange through bolts. After the connection, the torsional vibration damper is located in the transmission connecting Between the flange and the connecting flange of the drive shaft. However, during the connection process, after the torsional damper is aligned with the bolt holes of the transmission connection flange, and then the transmission shaft connection flange is installed, it is necessary to rotate the transmission shaft connection flange to align the bolt holes. The torsional shock absorber will rotate, causing the torsional shock absorber and the transmission connecting flange bolt holes to be misaligned and need to be re-aligned. During the assembly process, the above-mentioned process will occur repeatedly, which seriously reduces the assembly efficiency.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a coaxial multi-part connection and assembly structure, which can smoothly perform the connection and assembly of the transmission connection flange, the transmission shaft connection flange and the torsional vibration damper.

The coaxial multi-part connecting and assembling structure of the utility model comprises a transmission connecting flange, a transmission shaft connecting flange and a torsional vibration damper located therebetween. The shaft connecting flange is provided with a first radial positioning hole, the torsional vibration absorber is provided with a second radial positioning hole, and is provided with a bolt hole corresponding to the position of the connecting flange, the transmission shaft connecting flange and the torsion The shock absorber is respectively sleeved on the radial positioning shaft through the first and second radial positioning holes to fit the radial positioning shaft with clearance, and is connected with the transmission connecting flange through bolts, and is arranged on the radial positioning shaft The limiting boss is provided with a first limiting groove on the circumferential surface of the first radial positioning hole, and a second limiting groove is provided on the circumferential surface of the second radial positioning hole, and the limiting boss is located on the first radial positioning hole. The limit slot and the second limit slot are in clearance fit with the first limit slot and the second limit slot.

There are four bolt holes on the transmission connecting flange, the transmission shaft connecting flange and the torsional shock absorber, and the center line of the limiting boss is the connecting line between the centers of the two diagonal bolt holes.

There are four said first and second limiting grooves, which are evenly distributed on the circumferential surface of the first radial positioning hole and the circumferential surface of the second radial positioning hole. The center line of the cross section of the bit slot is the connection line between the centers of the two diagonal bolt holes.

When assembling, first put the torsional vibration damper on the radial positioning shaft of the transmission connecting flange through the second radial positioning hole, and make the limit boss on the radial positioning shaft located in one of the second limit grooves. At this time, the transmission connecting flange is aligned with the bolt hole of the torsional damper, and then the transmission shaft connecting flange is sleeved on the radial positioning shaft of the transmission connecting flange through the first radial positioning hole, and the radial The limit boss on the positioning shaft is located in one of the first limit grooves, then the bolt holes of the transmission connecting flange, torsional vibration damper, and transmission shaft connecting flange are all aligned, and the bolts are tightened to complete the three parts. Connection assembly.

In the present invention, since the limiting boss is arranged on the radial positioning shaft of the transmission connecting flange, the first radial positioning hole of the transmission shaft connecting flange and the circumferential surface of the second radial positioning hole of the torsion damper are respectively There are a first limit slot and a second limit slot. After the bolt holes are aligned, the limit boss is located in the first limit slot and the second limit slot, and the parts are circumferentially limited, so that the three parts are There is no relative rotation between them, so through the limit boss and the first and second limit grooves, the connection and assembly of the transmission connecting flange, the transmission shaft connecting flange and the torsional vibration absorber can be smoothly carried out, which improves the assembly and assembly. efficiency.

Description of drawings

Figure 1 is a front view of the transmission connecting flange, the transmission shaft connecting flange and the torsional vibration damper after they are connected and assembled.

FIG. 2 is a front view of the transmission connecting flange.

FIG. 3 is a right side view of FIG. 2 .

Fig. 4 is a front view of the torsional damper.

Figure 5 is a front view of the drive shaft connecting flange.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in FIGS. 1 to 5 , the coaxial multi-part connection and assembly structure includes a transmission connection flange 1 , a transmission shaft connection flange 3 and a torsional vibration damper 2 located therebetween, and the transmission connection flange 1 is connected to the transmission shaft. The flanges 3 are provided with four bolt holes on the same circumference and are evenly arranged, and the torsional damper 2 is provided with bolt holes corresponding to the positions of the transmission connecting flange 1 and the transmission shaft connecting flange 3 . A radial positioning shaft 11 is arranged on the end face of the transmission connecting flange 1, a limiting boss 12 is arranged on the radial positioning shaft 11, and the center line of the limiting boss 12 is the connecting line between the centers of two diagonal bolt holes. . The transmission shaft connecting flange 3 is provided with a first radial positioning hole 31 , and four first limiting grooves 32 are opened on the circumferential surface of the first radial positioning hole 31 , and the first limiting grooves 32 are evenly distributed on the first diameter. On the circumferential surface of the positioning hole 31, the center line of its cross section is the connecting line between the centers of the two diagonal bolt holes. The torsional vibration absorber 2 is provided with a second radial positioning hole 21 , and four second limiting grooves 22 are opened on the circumferential surface of the second radial positioning hole 21 , and the second limiting grooves 22 are evenly distributed in the second radial direction. On the circumferential surface of the positioning hole 21, the center line of the cross section is the connection line between the centers of the two diagonal bolt holes, which is convenient for rotating parts so that the light weight of each assembly part is in the same quadrant to meet the assembly technical requirements. The transmission shaft connecting flange 3 and the torsional vibration damper 2 are respectively sleeved on the radial positioning shaft 11 through the first and second radial positioning holes 32 and 22 in clearance fit with the radial positioning shaft 11, and the limit One of the first limit grooves 32 and one of the second limit grooves 22 of the boss 12 are in clearance fit with the first limit groove 32 and the second limit groove 22, and the transmission connecting flange 1 and the transmission shaft are connected The flange 3 and the torsional damper 2 are connected by bolts 4 .

Claims (3)

1. The utility model provides a coaxial many parts connect assembly structure, includes derailleur flange (1), transmission shaft flange (3) and torsional damper (2) that are located between them, is provided with radial positioning axle (11) at derailleur flange's terminal surface, has seted up first radial locating hole (31) on the transmission shaft flange, has seted up second radial locating hole (21) on the torsional damper to set up with the bolt hole that the flange position corresponds, transmission shaft flange and torsional damper respectively through first, second radial locating hole suit in with radial positioning axle clearance fit on the radial positioning axle, and be connected with derailleur flange through bolt (4), its characterized in that: the radial positioning shaft is provided with a limiting boss (12), the circumferential surface of the first radial positioning hole is provided with a first limiting groove (32), the circumferential surface of the second radial positioning hole is provided with a second limiting groove (22), and the limiting boss is positioned in the first limiting groove and the second limiting groove and is in clearance fit with the first limiting groove and the second limiting groove.

2. The coaxial multi-part connecting fitting structure according to claim 1, wherein: the transmission connecting flange (1), the transmission shaft connecting flange (3) and the torsional vibration damper (2) are provided with four bolt holes, and the center line of the limiting boss (12) is a connecting line of centers of two diagonal bolt holes.

3. The coaxial multi-part connecting fitting structure according to claim 2, wherein: four first limiting grooves (32) and four second limiting grooves (22) are uniformly distributed on the circumferential surface of the first radial positioning hole (31) and the circumferential surface of the second radial positioning hole (21), and the central lines of the cross sections of the first limiting grooves and the second limiting grooves are connecting lines of centers of two diagonal bolt holes.

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