CN108081197A - A kind of assembly tool of roller-type overrunning clutch - Google Patents

Abstract

The invention relates to an assembly tool for a roller type overrunning clutch, which includes a fork and a handle. The depth of the fork 1 is greater than the distance from the installation position of the overrunning clutch to the clutch shaft, the outer diameter is smaller than the inner diameter of the outer ring, and the inner diameter is greater than the outer diameter of the cage; The number is the same as the number of rollers in the roller overrunning clutch, and each adjacent split lobe is processed into a semicircular arc facing the axis and having the same radius as the rollers. When the present invention is assembled, the rollers will not fall off, thereby ensuring the convenient and convenient installation of the rollers. The present invention does not use lubricating oil during the installation, thus avoiding the clogging phenomenon and ensuring the rotational flexibility of the rollers and the cage , thereby ensuring product stability and reliability.

Description

An assembly tool for a roller type overrunning clutch

technical field

The invention relates to an assembly tool for a roller type overrunning clutch, which can realize fast and simple assembly in the roller type overrunning clutch.

Background technique

The typical structure of the roller overrunning clutch is shown in Figure 1 and Figure 2, including the clutch shaft 11, roller 12, and outer ring 13. In order to ensure that the rollers 2 enter and exit synchronously, a cage 14 is used to control the rollers. 12 are evenly distributed in the angular position on the clutch shaft 11. At present, it is used for roller assembly of overrunning clutch, mainly by applying grease on the outer surface of the roller to make the roller stick to the clutch shaft, and then inserting it into the outer ring to realize the assembly of the clutch roller. The success rate of assembling the rollers by smearing grease is low, and the rollers may fall off if the operator is not careful when assembling the outer ring. If too much grease is applied, the grease cannot be quickly removed, and the clutch shaft may be blocked. The lubricating oil through hole on the roller and the rotation flexibility of the roller and the cage are affected, which greatly reduces the stability and reliability of the product.

Contents of the invention

The object of the present invention is to provide an assembly tool for a roller type overrunning clutch, which can ensure the stability and reliability of the product while completing the assembly of the clutch rollers efficiently and quickly.

The specific technical solution of the present invention is that the assembly tool of the roller type overrunning clutch includes a fork and a handle, the shape of the fork is cylindrical, and a threaded hole is opened at the bottom of the cylinder for assembling the handle. The depth of the cylindrical shift fork is greater than the distance from the installation position of the overrunning clutch to the clutch shaft, the outer diameter is smaller than the inner diameter of the outer ring, and the inner diameter is greater than the outer diameter of the cage; The number of the above-mentioned sub-lobe is the same as the number of rollers of the roller overrunning clutch, and each adjacent sub-lobe is processed into a semi-circular arc facing the axis and having the same radius as the rollers.

The present invention comprises in the assembly step of realizing roller type overrunning clutch:

1. Assemble the cage to the clutch shaft, and then install the assembly tool of the roller overrunning clutch from the small end of the clutch shaft;

2. Install all the rollers in the semicircle of the assembly tool, and use the assembly tool as a guide to assemble the rollers, so that each roller can stay stably in the space formed by the semicircle, the cage and the groove of the clutch shaft;

3. Install the outer ring;

4. Withdraw the assembly tool from the small end of the clutch shaft to complete the assembly of the roller overrunning clutch.

The invention designs a special assembly tool and guides the rollers to the installation position through the semicircular arc on the tool, and under the action of the semicircular arc, the rollers will not fall off, thus ensuring the convenience and convenience of the rollers. Easy installation. At the same time, the present invention does not use lubricating oil during installation, thereby avoiding the clogging phenomenon, ensuring the rotation flexibility of the roller and the cage, and further ensuring the stability and reliability of the product.

Description of drawings

Fig. 1 is a structural schematic diagram of a roller type overrunning clutch;

Fig. 2 is the B-B direction view of Fig. 1;

Fig. 3 Schematic diagram of the assembly tool of the roller type overrunning clutch;

Fig. 4 is the sectional view of Fig. 3;

Fig. 5 is a schematic diagram of the assembly tool of the roller type overrunning clutch loaded into the clutch;

Fig. 6 is the sectional view of Fig. 5;

Fig. 7 is the schematic diagram after roller is installed;

Figure 8 is a schematic diagram after being loaded into the outer ring;

FIG. 9 is a cross-sectional view of FIG. 8 .

Detailed ways

As shown in the figure, the assembly tool of the roller type overrunning clutch includes a fork 1 and a handle 2. The fork 1 is cylindrical in shape, and a threaded hole is opened at the bottom of the cylinder for assembling the handle 2. The circular The depth of the cylindrical shift fork 1 is greater than the distance from the installation position of the overrunning clutch to the clutch shaft 11, the outer diameter is smaller than the inner diameter of the outer ring 13, and the inner diameter is greater than the outer diameter of the cage 14; 5. The number of split petals 5 is the same as the number of rollers 12 of the roller overrunning clutch, and each adjacent split petal 5 is processed into a semicircle facing the axis and having the same radius as the rollers 12 .

Claims (1)

1. An assembly tool for a roller type overrunning clutch, characterized in that, the assembly tool includes a fork (1), a handle (2), and the fork (1) is cylindrical in shape, and the cylinder There is a threaded hole at the bottom for assembling the handle (2), the depth of the cylindrical shift fork (1) is greater than the distance from the installation position of the overrunning clutch to the clutch shaft (11), and the outer diameter is smaller than the inner diameter of the outer ring (13) , the inner diameter is greater than the outer diameter of the cage (14); the front end of the cylinder is evenly distributed split petals (5), and the number of split petals (5) is the same as that of the rollers (12) of the roller type overrunning clutch The numbers are the same, and each adjacent split petal (5) is processed into a semicircular arc facing the axis and having the same radius as the roller (12).