JP5451177B2 - Rotating member mounting method and tool - Google Patents

Description

The present invention relates to a tool used to implement mounting method and it attach the rotating member to the shaft.

  In order to attach a gear or pulley, which is a rotating member, to the shaft, it is necessary to insert or press-fit the shaft into the hole of the rotating member. Particularly, in the operation of attaching the rotating member to the shaft of a large machine, a very large force is required. Often done.

JP-A-6-106484

  An object of this invention is to simplify the operation | work which attaches the gear or pulley which is a rotation member to a shaft.

A first aspect of the present invention relates to an attachment method for attaching a gear or a pulley, which is a rotating member, to a shaft. The attachment method includes a centering that has an axial direction of the shaft and a tapered surface that comes into contact with a hole of the rotating member. Fixing the male screw with respect to the shaft so that the axial direction of the male screw provided with a portion coincides;
Arranging the rotating member so that the male screw penetrates the hole of the rotating member; arranging the pressing member so that the male screw penetrates the hole of the pressing member; and A step of disposing the thrust bearing so as to pass through, a step of screwing the female screw of the operation unit having a female screw into the male screw, and the operation unit rotating the operation unit in a direction approaching the shaft, wherein through the thrust bearing and the pressing member pushing forward the rotary member seen including a the step of attaching the rotary member to the shaft, through the thrust bearing and the pressing member by the operating portion by the operation portion by When the rotary member is pushed forward, the rotary member is set by the tapered surface of the centering portion. The shaft hole of the rotary member is inserted while being Taringu.

  A second aspect of the present invention relates to a tool used for carrying out the mounting method, wherein the tool includes the male screw, the pressing member, the thrust bearing, and the operation portion, and the thrust bearing is It includes two race plates and rolling elements to be disposed between the two race plates, and the two race plates and the rolling elements are held by the pressing member or the operation unit so as not to be separated from each other.

  According to the present invention, the operation of attaching a gear or pulley as a rotating member to the shaft is simplified.

It is a figure which shows the structure of the tool used in the operation | work which attaches a rotation member (gear or a pulley) to a shaft. Shows the progress of attaching a rotating member to the shaft using a tool Shows the progress of attaching a rotating member to the shaft using a tool Shows the progress of attaching a rotating member to the shaft using a tool It is a figure which shows the state by which the rotation member was attached to the shaft. It is a figure which illustrates the example of improvement of a tool.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram illustrating a configuration of a tool T used in an operation of attaching a gear or a pulley that is a rotating member 30 to a shaft 10. 2-4 is a figure which shows progress of the operation | work which attaches the rotating member 30 to the shaft 10 using the tool T. FIG. FIG. 5 is a diagram illustrating a state in which the rotating member 30 is attached to the shaft 10.

  The shaft 10 has a fitting portion 14 that fits into the hole 32 of the rotating member 30. The shaft 10 also has a fastening portion 12. The tool T includes a male screw 20, a pressing member 40, a thrust bearing 50, and an operation unit 60. The male screw 20 has a fastening portion 22 that is fastened to the fastening portion 12 of the shaft 10 and fixed to the shaft 10. The fastening portions 12 and 22 can be screws, for example. The male screw 20 preferably has a centering portion 26 for centering the rotating member 30, and the centering portion 26 may have a tapered surface 27. For example, the pressing member 40 may include a pressing plate 44 and a pressing leg 46, but the pressing leg 46 may not be provided. The thrust bearing 50 includes, for example, two race plates 52 and 54 and rolling elements 56 to be disposed between the two race plates 52 and 54. The rolling element 56 can be held by a rolling element holder (not shown). The operation unit 60 includes a female screw 62 that engages with the male screw 20 and a handle 64. Here, the thrust bearing 50 generally has a configuration in which the two race plates 52 and 54 and the rolling elements 56 are separated from each other. In addition, as exemplified in FIG. 6, the raceway plates 52 and 54 and the rolling elements 56 are preferably held by a holding portion 48 provided in the pressing member 40 so as not to be separated from each other. Alternatively, although not shown, the raceway plates 52 and 54 and the rolling elements 56 may be held by a holding portion provided in the pressing member 40 so as not to be separated from each other.

  Hereinafter, an attachment method for attaching the rotating member 30 to the shaft 10 using the tool T will be described. First, as illustrated in FIG. 2, the male screw 10 is fixed to the shaft 10 so that the axial direction of the shaft 10 coincides with the axial direction of the male screw 20. This can be done by fastening (for example, screwing) the fastening portion 22 on the male screw 20 side to the fastening portion 12 on the shaft 10 side.

  Subsequently, as illustrated in FIG. 3, the rotating member 30 is arranged so that the male screw 20 penetrates the hole 32 of the rotating member 30, and then the hole 42 of the pressing member 40 is pressed so that the male screw 20 penetrates. The member 40 is arranged, and then the thrust bearing is arranged so that the male screw 20 passes through the hole of the thrust bearing 50. Next, the female screw 62 of the operation unit 60 having the female screw 62 is screwed into the male screw 20. Next, as illustrated in FIG. 4, the operation unit 60 is rotated in a direction in which the operation unit 60 approaches the shaft. This can be done by manipulating the handle 64. This rotation is converted into movement of the operation unit 60 in the axial direction by the female screw 62 and the male screw 20. Accordingly, the operation unit 60 pushes the rotating member 30 through the thrust bearing 50 and the pressing member 40, and the rotating member 30 is attached to the shaft 10. When the rotating member 30 is attached to the shaft 10, the operating unit 60 is rotated in the direction opposite to that at the time of attachment and removed from the male screw 20, the thrust bearing 50 and the pressing member 40 are removed, and the male screw 20 is further removed from the shaft 10. Good. In this manner, as illustrated in FIG. 5, the operation of attaching the rotating member 30 to the shaft 10 can be completed. In this operation, the centering portion 26 is centered by guiding the hole 32 of the rotating member 30 on the surface thereof.

  Here, the thrust bearing 50 facilitates the operation unit 60 to rotate relative to the pressing member 40. When the thrust bearing 50 is not used, the surface of the pressing member 40 and the surface of the operation portion 60 rub against each other when the hole 32 of the rotating member 30 and the fitting portion 14 of the shaft 10 are fitted. In addition to the frictional force (force required for insertion or press-fitting) between the 30 holes 32 and the fitting portion 14 of the shaft 10, a large force is required. The thrust bearing 50 is effective for significantly reducing the friction between the pressing member 40 and the operation unit 60. Thereby, the operation | work which attaches the rotating member 30 to the shaft 10 is simplified dramatically.

DESCRIPTION OF SYMBOLS 10 Shaft 12 Fastening part 14 Fitting part 20 Male screw 22 Fastening part 26 Centering part 27 Tapered surface 30 Rotating member (gear, pulley)
32 Hole 40 Pressing member 42 Hole 44 Pressing plate 46 Pressing leg 48 Holding part 50 Thrust bearings 52 and 54 Track plate 56 Rolling body 60 Operation part 62 Female screw 64 Handle

Claims (3)

A mounting method for attaching a gear or pulley as a rotating member to a shaft,
Fixing the male screw with respect to the shaft such that the axial direction of the shaft and the axial direction of the male screw having a centering portion having a tapered surface that comes into contact with the hole of the rotating member coincide with each other;
Arranging the rotating member such that the male screw passes through the hole of the rotating member;
Arranging the pressing member such that the male screw penetrates the hole of the pressing member;
Disposing the thrust bearing so that the male screw passes through the hole of the thrust bearing;
A step of screwing the female screw of the operation unit having a female screw into the male screw;
Rotating the operation unit in a direction in which the operation unit approaches the shaft, thereby pushing the rotation member through the thrust bearing and the pressing member by the operation unit and attaching the rotation member to the shaft; only including,
When the rotating member is pushed forward by the operation portion via the thrust bearing and the pressing member, the shaft is inserted into the hole of the rotating member while the rotating member is centered by the tapered surface of the centering portion. ,
A mounting method characterized by that. The thrust bearing includes two race plates and rolling elements to be disposed between the two race plates,
The two track plates and the rolling elements are held by the pressing member or the operation unit so as not to be separated from each other.
The attachment method according to claim 1, wherein: A tool used for carrying out the mounting method according to claim 1,
The male screw, the pressing member, the thrust bearing and the operation unit,
The thrust bearing includes two race plates and rolling elements to be disposed between the two race plates,
The two track plates and the rolling elements are held by the pressing member or the operation unit so as not to be separated from each other.
A tool characterized by that.

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