CN215201824U - Adapter for mounting bushing - Google Patents

Abstract

The utility model belongs to assembly appurtenance field specifically discloses an adapter for bushing installation aims at solving and screws up the problem of the stationarity of the unable assurance moment of torsion transmission of bushing in-process with the wrench of deciding the strength. The adapter for installing the shaft bushing comprises a joint disc, wherein a shaft bushing matching ring groove coaxial with the joint disc is formed in the matching surface of the joint disc, and at least two uniformly distributed key teeth are arranged on the side wall surface of the shaft bushing matching ring groove; the driving surface of the joint disc is provided with a screwing rod which is coaxial with the joint disc. Utilize this adapter for the bushing installation can assist and decide power instrument and screw up the bushing, can guarantee the homogeneity of adapter for the bushing installation and bushing atress simultaneously, and then make deciding power and screw up the in-process moment of torsion transmission steady, thereby guarantee the validity that power was decided to bearing installation position's exactness, bushing, and can avoid producing the fish tail to bearing surface, reduce the wearing and tearing of this adapter for the bushing installation itself, improve its life.

Description

Adapter for mounting bushing

Technical Field

The utility model belongs to assembly appurtenance field, concretely relates to adapter for bushing installation.

Background

In the process of assembling an airplane, the joint between each part is mainly connected and fixed by a connecting piece such as a bolt, a rivet and the like, so the torque tightening operation of the connecting piece is an important process in the airplane assembling operation. However, the normal operation of the torque tightening operation may be affected by various factors such as the operation space and the installation angle of the components, and even the constant force tool may not be directly applied thereto due to the special-shaped structure of the connecting member. For example: the shaft bushing is used for fixing a bearing between the spoiler and the lower drooping plate of the airplane; because the drooping plate and the spoiler need to be turned over relatively to change the lift force of the airplane in the taking-off and landing process of the airplane, the fixed force of the shaft bushing is of great importance to the taking-off and landing safety of the airplane; however, the shaft bushing is a part with a flange, at least two key grooves in an annular array are arranged in the circumferential direction of the flange, and a conventional fixed-force tool such as a fixed-force wrench cannot guarantee the stability of torque transmission in the process of screwing the shaft bushing, so that the stress of the shaft bushing is uneven, the required fixed-force effect cannot be achieved, and even the bearing surface is scratched in the process of screwing the fixed-force tool.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adapter for the installation of bushing aims at solving and screws up the problem of the stationarity that the moment of torsion transmitted can't be guaranteed to the bushing in-process with the wrench of deciding the strength.

The utility model provides a technical scheme that its technical problem adopted is: the adapter for installing the bushing comprises a joint disc, wherein the disc surfaces on the two sides of the joint disc are respectively a matching surface and a driving surface, the matching surface is provided with a matching pin coaxial with the joint disc, the matching surface is also provided with a bushing matching ring groove coaxial with the joint disc, the side wall surface of the bushing matching ring groove is provided with at least two uniformly distributed key teeth, and the matching surface between the bushing matching ring groove and the matching pin is provided with a bearing matching ring groove; and the driving surface is provided with a screwing rod which is coaxial with the joint disc.

Furthermore, the side wall surfaces of the shaft bushings on two sides of the key teeth, which are matched with the ring grooves, are provided with abdicating notches.

Further, the number of the key teeth is six.

Further, the driving surface is a conical surface.

Further, the cross section of the screwing rod is in a regular hexagon shape.

The utility model has the advantages that: the adapter for mounting the bushing can assist a force fixing tool to screw the bushing, when in use, the adapter for mounting the bushing is matched with a central hole of a bearing for positioning through a matching pin, and then key teeth are embedded into a key groove of the bushing to match a bushing matching ring groove with the bushing, so that the adapter for mounting the bushing can be matched and mounted on the bushing of the bearing, and then the force fixing tool acts on a screwing rod, so that torque can be transmitted to the bushing needing to be screwed with fixed force through the adapter for mounting the bushing, and because the bushing matching ring groove, a joint disc and the screwing rod are coaxial, the key teeth are uniformly distributed on the side wall surface of the bushing matching ring groove, the uniformity of stress of the adapter for mounting the bushing and the bushing can be ensured, the torque transmission is stable in the process of screwing with fixed force, and the accuracy of the mounting position of the bearing and the effectiveness of the fixed force are ensured, the bearing surface can be prevented from being scratched, the abrasion of the adapter for mounting the bushing is reduced, and the service life of the adapter is prolonged.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

fig. 3 is a schematic diagram of the right-side view structure of the present invention;

labeled as: joint disc 100, mating pin 111, bushing mating ring groove 112, spline teeth 113, bearing mating ring groove 114, relief notch 115, screw rod 121.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, the adapter for installing a bushing includes a joint disc 100, two side disc surfaces of the joint disc 100 are respectively a matching surface and a driving surface, the matching surface is provided with a matching pin 111 coaxial with the joint disc 100, the matching surface is further provided with a bushing matching ring groove 112 coaxial with the joint disc 100, a side wall surface of the bushing matching ring groove 112 is provided with at least two evenly distributed splines 113, and the matching surface between the bushing matching ring groove 112 and the matching pin 111 is provided with a bearing matching ring groove 114; the driving surface is provided with a screw rod 121 coaxial with the joint disc 100.

When the adapter for mounting the bearing bush is used for assisting the force fixing tool to screw the bearing bush of the bearing, an operator uses two adapter for mounting the bearing bush to be respectively assembled on the bearing bushes at two sides of the bearing, specifically, the adapter is positioned by matching a matching pin 111 arranged on a matching surface of a joint disc 100 with a central hole of the bearing, and then key teeth 113 are embedded into a key groove of the bearing bush to match a bearing bush matching ring groove 112 with the bearing bush, so that the adapter for mounting the bearing bush can be matched and mounted on the bearing bush of the bearing; finally, two constant force tools are respectively matched on the screwing rods 121 of the two shaft bushing mounting adapter, and corresponding driving force is applied to the constant force tools, so that the torque can be stably transmitted to the shaft bushing through the shaft bushing mounting adapter, the constant force screwing of the shaft bushing is completed, and the accuracy of the mounting position of the bearing is ensured.

Wherein the adapter plate 100 is the body portion of the bushing mounting adapter and is generally a centrally symmetric structure, preferably a circular structure, as shown in fig. 2 and 3.

The matching surface of the adapter plate 100 is a side plate surface where the adapter for installing the bushing is matched and installed with the bushing; the matching pin 111 is mainly used for matching with a central hole of a bearing fixed by a bushing for positioning, and the matching pin 111 can be of various structures, preferably made into a cylindrical structure matched with the central hole of the bearing; the bushing-fitting ring groove 112 is mainly used for fitting a bushing requiring a constant force, and is generally configured according to the contour of the bushing; the key teeth 113 are mainly used for matching with key grooves around the shaft bushing to realize the transmission of torque; the number of splines 113 is typically equal to the number of splines around the bushing, for example: with six keyways around the bushing, the number of keyteeth 113 is six, as shown in FIG. 2. To facilitate the effective engagement of the spline teeth 113 and the spline grooves, relief notches 115 are typically formed in the side wall surfaces of the bushing engaging groove 112 on both sides of the spline teeth 113, as shown in fig. 1 and 2. The bearing engaging ring groove 114 is mainly used for embedding a bearing for fixing the bushing when the adapter for mounting the bushing is engaged with the bushing, so that the bearing can avoid the side of the bearing on one hand and can be further positioned on the other hand.

The driving surface of the joint disc 100 is a side disc surface of a structure matched with a fixed force tool and arranged on the adapter for installing the shaft bushing; the driving surface can be in various structures, and is preferably arranged into a conical surface in order to improve the smoothness of torque transmission; the screw-threaded shank 121 provided on the driving surface is mainly intended to cooperate with a fixed-force tool, on which usually structures are provided that cooperate with the fixed-force tool, such as: a pair of holding surfaces, a straight groove, a cross groove, an inner hexagonal groove, etc., preferably a hexagonal rod having a regular hexagonal cross section.

Examples

Adapter for mounting a certain bushing, which comprises a joint disc 100, wherein the two side disc surfaces of the joint disc 100 are respectively a matching surface and a driving surface, the matching surface is provided with a matching pin 111 coaxial with the joint disc 100, the matching surface is also provided with a bushing matching ring groove 112 coaxial with the joint disc 100, the side wall surface of the bushing matching ring groove 112 is provided with six uniformly distributed key teeth 113, the side wall surfaces of the bushing matching ring groove 112 at the two sides of the key teeth 113 are both provided with abdicating notches 115, and the matching surface between the bushing matching ring groove 112 and the matching pin 111 is provided with a bearing matching ring groove 114; the driving surface is a conical surface, a screwing rod 121 coaxial with the joint disc 100 is arranged on the driving surface, and the cross section of the screwing rod 121 is in a regular hexagon shape;

wherein, the diameter of the matching pin 111 is phi 25.26mm, the width of the key teeth 113 is 4.88mm, and the height is 2.5 mm.

Claims (5)

1. Adapter for bushing installation, its characterized in that: the joint disc comprises a joint disc (100), wherein the disc surfaces on two sides of the joint disc (100) are respectively a matching surface and a driving surface, the matching surface is provided with a matching pin (111) coaxial with the joint disc (100), the matching surface is also provided with a bushing matching ring groove (112) coaxial with the joint disc (100), the side wall surface of the bushing matching ring groove (112) is provided with at least two uniformly distributed key teeth (113), and the matching surface between the bushing matching ring groove (112) and the matching pin (111) is provided with a bearing matching ring groove (114); the driving surface is provided with a screwing rod (121) which is coaxial with the joint disc (100).

2. An adapter for bushing installation according to claim 1, wherein: and yielding notches (115) are formed in the side wall surfaces of the bushing matching ring grooves (112) on the two sides of the key teeth (113).

3. An adapter for bushing installation according to claim 1 or 2, characterized in that: the number of the key teeth (113) is six.

4. An adapter for bushing installation according to claim 1, wherein: the driving surface is a conical surface.

5. An adapter for bushing installation according to claim 1 or 4, wherein: the cross section of the screw rod (121) is in a regular hexagon shape.

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