JPS5821336Y2 - electric motor mount - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a mounting base on which an electric motor is slidably mounted in the direction in which the belt is stretched.

4 and 5 show conventional motor mounts of this kind, where 1 is the motor and 2 is the motor mount, which extends perpendicularly to the motor shaft in the part on which the motor tail 4 is placed. a base 15 having elongated holes 5, communicating with two elongated holes on the motor shaft end side, that is, the front side of these elongated holes, and having a guide groove 6 on the upper surface extending along these elongated holes; Insert into the elongated hole 5 and the mounting hole 10 of the motor tail, and attach the nut 11 to the tip of the stub.
The tightening poles 9, 9' that are screwed together, and the tightening poles 12, 16 that connect the front and rear tightening poles) 9, 9' on both left and right sides of the back side of the base, and the holes inserted in the side of the base 15. Intricately,
A tightening bolt 1 whose tip is screwed into the center of one resistor 16 and is prevented from being removed.
7, and a constant piece 13 which is slidably engaged with the guide groove 6 and has a tightening bolt 9' inserted into the hole in the center without play, and the tightening bolt 17 can be tightened. This causes the resistor 16 to move, and the electric motor 1 to slide along with it, making it possible to adjust the tension of the belt.

Note that the tightening bolt 9' inserted into the hole of the constant piece 13 without any play is also inserted into the mounting hole 10 of the motor tail without any play, so that the motor 1 is fixed against the base 15. This is to prevent it from shifting or tilting in the axial direction.

In such a conventional structure, the electric motor 1 cannot be tilted with respect to the base 15, so adjustment cannot be made when the motor shaft is tilted with respect to the driven machine axis, and engagement with the loosened tightening bolt 17 is impossible. Since belt tension is applied to the end of the resistor 16 on the motor shaft end side, an excessive force is applied to the threaded portion of the tightening bolt, resulting in a breakage accident.

The present invention solves this problem, and the embodiments shown in FIGS. 1 to 3 will be described. Reference numeral 1 is an electric motor, and 2 is an electric motor mounting base, which is constructed as follows.

That is, reference numeral 3 denotes a base, and a long hole 5 extending perpendicularly to the motor shaft is provided in the part on which the motor tail 4 is placed. A guide groove 6 communicating with the long hole and extending along the long hole is provided on the top surface of the base.

Further, bolt seats 7 projecting upward are provided in the portions facing the elongated holes 5 at both left and right ends of the base 3, and the ends of the bolt seats 7 are inserted into the screw holes of the two bolt seats at diagonally both ends of the bolt seats 4.
A push bolt 8°8' is screwed into the side.

In this case, the push bolt 8 on the end of the motor shaft is positioned on the driven machine side. The push bolt 9.9' is inserted into the elongated hole 5 of the base and the mounting hole 10 on the tail of the motor, and the nut 11 is attached to the tip. A tightening bolt with
The tightening bolt 9' that places the bottom of the guide groove 6 has a larger diameter than the other tightening bolts 9.

Reference numeral 12 denotes a constant bar that connects the front and rear tightening bolts 9, 9 and 9', 9 on both left and right sides of the back side of the base 3, and reference numeral 13 denotes a constant bar that is slidably engaged with the guide groove 6 on the upper surface of the base. A tightening bolt 9' is inserted into the hole in the center of the piece without play.

The tightening bolt 9' is also inserted into the mounting hole 10 of the motor tail without play, thereby preventing the motor tail from moving in any direction other than the sliding direction with respect to the base 3. .

Reference numeral 14 indicates a mounting foot of the base 3.

When tensioning the belt, the nut 11 of the tightening bolt and the push bolt 8' on the side opposite to the nuclear drive machine are loosened, and the push bolt 8 on the driven machine side is tightened to the leg side of the electric motor.

This causes the electric motor 1 to slide toward the side opposite to the nuclear drive machine, thereby tensioning the belt.

At this time, the shaft end of the electric motor is pulled by a belt, and the push bolt 8 receives rotational force in the counterclockwise direction as shown in the figure using this contact point as a fulcrum. The tightening bolt 9' is inserted into the hole without any play! The two sides of the constant piece 13 along the guide groove 6 engage with the guide groove without play and do not move in any direction other than the sliding direction, so the electric motor 1 will not tilt due to the rotational force.

This also applies when the above-mentioned anti-sway means are applied to other legs of the electric motor.

This also prevents the motor from shifting in the axial direction.

After tensioning the belt, the electric motor 1 is fixed to the base 3 by tightening the nut 11 of the tightening bolt.

In addition, if the motor shaft is tilted with respect to the driven machine shaft after tensioning the belt, the push bolt 8' on the side opposite to the nuclear drive machine
to the motor tail, or by reattaching this push bolt 8' to the bolt seat 7 on the opposite side and tightening it to the motor tail from the opposite direction, the electric motor 1 can be tightened with the leg tightening bolt 9' provided with a means to prevent movement. Correct it by tilting it within the range of play between the other tightening bolt 9, the elongated hole 5 of the base, and the mounting hole 10 of the motor tail.

Additionally, the push bolt 8' on the side opposite to the nuclear drive machine is also used when moving the electric motor 1 to the driven machine side.

In the above embodiment, as a means of inserting the tightening bolt 9' into the mounting hole 10 at the tail of the electric motor without play, the diameter of the tightening bolt 9' itself is made thicker. Alternatively, the diameter of the tightening bolt 9' may be made the same as the diameter of the other tightening bolts 9, and the diameter of the mounting hole 10 at the tail of the electric motor may be made smaller.

In addition, if the push bolts are screwed into the four bolt seats 7 on both sides of the base, the operation becomes even easier.As explained above, the motor mounting base of the present invention is the part on which the motor tail is placed. a base comprising: an elongated hole extending perpendicularly to the motor shaft; a guide groove extending along one of the elongated holes; and a bolt seat disposed diagonally outside the elongated hole; A tightening bolt that is inserted into an elongated hole and a mounting hole on the motor tail, and a nut is screwed onto the tip, a quistant piece that is slidably engaged with a guide groove on the base, and this quistant piece and the electric motor. It is equipped with a tightening bolt that is inserted into the mounting hole of the tail and screwed with a nut on the tip, and a push bolt that is screwed into the screw hole of the bolt seat of the base and presses the side of the motor tail with the tip. It is something.

Therefore, according to the present invention, the only parts that need to be precisely finished around the motor mounting base are the guide groove provided along one elongated hole and the constant piece that engages with this guide groove. By maintaining the relationship between the two, the motor can be positioned reliably.

Furthermore, the belt can be tensioned by simply tightening the push bolt 8 on the driven machine side of the base, without tilting the electric motor, and is easy to operate.

[Brief explanation of drawings]

Fig. 1 is a top view of the motor mount according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Figs. 4 and 5 are the same as those shown in Fig. 1. FIG. 3 is a drawing showing a conventional device corresponding to FIG. 1: Electric motor, 2: Motor mounting base, 3: Base, 4: Motor tail, 5: Long hole, 6: Guide groove, 7: Bolt seat, 8.8':
Push bolt, 9, 9': Tightening bolt, 10: Motor tail mounting hole, 11: Nut, 12 Niji standper 13 Niji stand piece.

Claims (1)

[Scope of utility model registration request] An elongated hole extending perpendicularly to the motor axis provided in the mounting area of the motor tail, a guide groove extending along one of the elongated holes, and a guide groove arranged diagonally outside the elongated hole. A base having a bolt seat, a tightening bolt that is inserted into an elongated hole and a mounting hole in the motor tail and a nut is screwed to the tip thereof, and a bolt having the long length on the back side of the motor foot mounting surface of the base. A constant piece extending in a direction intersecting the extending direction of the hole and connecting the two tightening bolts, a constant piece slidably engaged with the guide groove, and a mounting hole between the constant piece and the motor tail. The motor is characterized by having a tightening bolt that is inserted into the base and into which a nut is screwed at the tip, and a press bolt that is inserted into a screw hole in the bolt seat of the base and presses the side of the motor tail with the tip of the screw. Motor mounting base.