JP2009008243A - Installation structure of geared motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein a conventional geared motor connected to an installed machine has through-holes in the output shaft direction penetrated through four corners of a case main body to fit the output shaft of the geared motor to an input shaft of the installed machine and is fixed by inserting bolts to the through-holes, and since the through-holes are long, long bolts are needed, requiring time to purchase such bolts and leading to inconvenience; and thus, to provide a structure capable of fixing a geared motor to an installed machine by using commercially available bolts with a short dimension. <P>SOLUTION: The geared motor 4 is formed by a hollow output shaft 6 and a box-shaped case main body 5 having bearings in a gear train and the output shaft 6 to enable transmission. The installed machine 1 receiving drive force of the geared motor 4 is provided with a first engagement part 3, and the geared motor 4 is provided with a second engagement part 8 positioned at least on one face on the output shaft 6 side of the case main body 5 to enable locking on the first engagement part 3. Through-holes 3a are provided on the first engagement part 3, and are engaged with pins 8a and bolts 8b of the second engagement part 8. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an installation structure for a geared motor that facilitates the connection of a hollow output shaft of a geared motor to an input shaft of an installation machine and accurately joins the geared motor.

In the conventional joining structure, the box-shaped case main body of the geared motor is used as a fixed portion, and through holes are provided at the four corners of the case main body, and the input shaft provided in the installation machine and the output shaft of the guarded motor are coupled, The four tap holes provided in the installation machine with the four corner through holes are made to be able to be screwed at the same position, and a bolt is screwed from the through hole to the tap hole to be fixed.
The geared motor operates the installation machine by inputting drive rotation by fixing the case body to the installation machine. The installation machine is an industrial machine that is equipped with an input shaft for conveyors, stirrers, printing machines, machine tools, elevators, transporters, etc., and is finished to a machine that uses the rotation from the input shaft to perform new operations. . The rotation of the input shaft requires a required number of rotations and torque, and is made possible by connecting a guard motor.

  The geared motor can select a capacity that matches the number of rotations and torque required by the installation machine, and outputs the required number of rotations and torque by a case body incorporating a drive motor and a plurality of gear trains. Can do. The case body has a box shape, hollow output shafts are arranged on the left and right sides, and a drive motor is connected to one end on the front and rear sides. The drive motor has a pinion at the tip of the motor shaft and meshes with the gear train. The gear train includes a shaft that transmits rotation in the orthogonal direction by a hypoid gear that meshes with the pinion, and a shaft having a plurality of gears is attached in parallel to the shaft to reduce the rotational speed of the drive motor. High torque rotation can be output.

  As for the output shaft, a hollow shaft is arranged in a direction perpendicular to the motor shaft direction of the drive motor, and the high-speed rotation of the motor shaft is often reduced to a low speed of about 1/50 to 1/10, The torque is doubled by the reduction ratio, and an output of 50 to 10 times can be obtained. The installation machine projects the input shaft, and connects the output shaft of the geared motor to the input shaft. The guard motor is fixed by passing through bolts that are longer than the case width through the four corners of the case body and screwing and tightening the taps provided in the installation machine.

  Utility model registration No. 3112976

  However, the case main body of the geared motor is box-shaped, and the case main body is fixedly connected to the installation machine, and a through bolt longer than the width of the case main body is required and purchased. It is not a commercial product, and cannot be purchased at a tool shop / home center. The through bolts had different lengths and thicknesses depending on the output capacity, and had to have various sizes.

In the present invention, instead of fixing with the through hole in the width direction of the case main body, the installation machine includes the first engagement portion, and the second side surface of the case main body is engaged with the first engagement portion. An engaging portion is provided and fixed by engaging. The first and second engaging portions include a structure in which a protrusion provided on the side surface of the case body is inserted into a through hole provided in the frame, or a bolt disposed in parallel to the frame surface, and the bolt is engaged with the side surface of the case body. Make it stop.
For joining the first engaging portion and the second engaging portion, the hollow output shaft of the geared motor is inserted into and fitted into the input shaft of the installation machine. When the fitting is performed, the first engaging portion and the second engaging portion are joined by engaging with a through hole and a protruding rod or by engaging a bolt in a direction perpendicular to the shaft. Can do.

  According to the first aspect of the present invention, the hypoid gear that meshes with the motor shaft pinion of the drive motor is disposed, the output shaft is provided in the orthogonal direction, the output shaft is connected to the input shaft of the installation machine, and is fixed to the installation machine. It is. The geared motor includes a drive motor that receives a motor shaft pinion, a gear train that meshes a plurality of gears including the motor shaft pinion and a hypoid gear, an output shaft provided in the gear train, the gear train and the output shaft. And a box-shaped case main body formed so as to be capable of transmission. The installation machine that receives the driving force includes a first engaging portion that is a through hole. The geared motor has a configuration in which a second engaging portion of a protruding rod that can be locked in the through hole of the first engaging portion is provided on at least one surface on the output shaft side of the case body.

  According to a second aspect of the present invention, a dropper gear that meshes with the motor shaft pinion of the drive motor is disposed, the output shaft is provided in an orthogonal direction, the output shaft is connected to the input shaft of the installation machine, and is fixed to the installation machine. It is a geared motor. The geared motor includes a drive motor that receives a motor shaft pinion, a gear train that meshes a plurality of gears including the motor shaft pinion and a hypoid gear, an output shaft provided in the gear train, the gear train and the output shaft. And a box-shaped case main body formed so as to be capable of transmission. The installation machine that receives the driving force includes a first engaging portion that is a bolt. The geared motor has a configuration in which the second engaging portion of the projecting surface to which the bolt of the first engaging portion is locked is provided on at least one surface on the output shaft side of the case body.

According to a third aspect of the present invention, the installation machine according to the first aspect is provided with a tap hole on the end surface of the input shaft, inserted into the output shaft of the geared motor, and screwed into the tap hole via a bolt. The first engagement portion and the second engagement portion are screwed in the joining direction and fixed.
In the invention of claim 4, when the input shaft of the installation machine according to claim 2 and the output shaft of the geared motor are connected, the L-shaped metal fitting of the first engagement portion of the installation machine, and the metal fitting A geared motor is installed in the installation machine by including a projecting surface to be sandwiched, a tap hole that engages with the second engaging portion of the projecting surface, and a bolt that passes through the second engaging portion and is screwed into the tap hole. Is fixed.

According to a fifth aspect of the present invention, there is a projection surface different from the projection surface of the second aspect, and the projection surface is attached to a bracket of the installation machine when the input shaft of the installation machine and the output shaft of the geared motor are connected. The projecting surface to be sandwiched and the projecting surface are provided with a recess that matches the mounting hole of the metal fitting, and the geared motor is fixed to the installation machine by engaging with the recess when passing through the mounting hole.
According to a sixth aspect of the present invention, the concave portion according to the fifth aspect includes a bottom surface having several bolt cross-sectional areas and a flat surface covering the periphery of the bottom surface, and is slightly in front, rear, left, and right with respect to the input shaft. It is set as the structure which provides the allowance space which enables the movement of this.

According to the first aspect of the present invention, the through hole of the first engaging portion and the protruding rod of the second engaging portion are engaged, so that the output shaft can be easily connected to the input shaft, and the driving force of the guard motor The installation machine has the effect of being able to quickly install in the axial direction.
According to a second aspect of the present invention, the bolt provided in the installation machine becomes the first engaging portion, the bolt engages perpendicularly in the axial direction with the projection surface of the guard motor as the second engaging portion, and the output shaft is connected to the input shaft. The geared motor can be easily installed in the installation machine in the axial direction.

In the structure of Claim 3, there exists an effect | action which can join a 1st engaging part and a 2nd engaging part to an axial direction by screwing an input shaft axially with an output shaft.
In the structure of Claim 4, there exists an effect | action which can fix a 1st engaging part and a 2nd engaging part with a volt | bolt perpendicularly | vertically to an axial direction.
According to the fifth aspect of the present invention, the bolt engages the first engaging portion and the second engaging portion vertically in the axial direction.
In the structure of Claim 6, there exists an effect | action which can make installation of an input shaft and an output shaft easy by expanding the recessed part of a 2nd engaging part.

According to the first aspect of the present invention, by fitting the output shaft to the input shaft, the first engaging portion and the second engaging portion can be bonded and fixed, and an effect of simple and strong connection can be obtained. is there.
In the invention of claim 2, since the first engaging portion and the second engaging portion are engaged perpendicularly to the axial direction, there is an effect that they can be fixed with a short bolt size.
In the invention of claim 3, when the input shaft and the output shaft are fixed with bolts, there is an effect that the first engaging portion and the second engaging portion can be engaged to form a strong connection.

In the invention of claim 4, there is an effect that the input shaft and the output shaft can be firmly connected by screwing the bolts perpendicularly to the axial direction.
In the invention of claim 5, there is an effect that the input shaft and the output shaft can be firmly connected by locking with the bolt perpendicular to the axial direction.
According to the sixth aspect of the present invention, by expanding the locking portion of the bolt, it is possible to absorb the runout error between the input shaft and the output shaft and facilitate the mounting.

  An object of the present invention is to provide a joining structure in which a drive motor is connected to the installation machine 1 and the geared motor 4 for operating the installation machine 1 is simply and quickly connected at low cost by rotating the drive source. FIG. 1 shows an installation machine 1 as an example, and a frame 16 having an input shaft 2 for driving force is arranged when described with a conveyor using a conveyor belt. The frame 16 can carry the article on the belt by fitting the output shaft 6 of the guard motor 4 to the input shaft 2 and transmitting the rotation of the drive motor 7 to the input shaft 2 and putting the belt on the frame 16. . The input shaft 2 and the output shaft 6 are processed with a keyway 9 having the same dimensions, and when fitted, a key 9a material is interposed to enable transmission of rotation.

  The guard motor 4 is integrally formed by connecting a box-shaped case body 5 and a drive motor 7. The case body 5 meshes the internal gear from the pinion of the drive motor 7 to the hypoid gear, changes the axis in the direction orthogonal to the pinion shaft, and meshes a plurality of spur gears to decelerate. In the deceleration, the high-speed rotation of the drive motor is set to a low-speed rotation of about 1:10 to 50, and the torque is set to a high torque opposite to the reduction ratio. Even if the small-sized geared motor 4 is 100 watts to 750 watts, the case main body has a width of 100 to 150 mm, and the conventional bolt fixing requires 120 to 170 mm. A joining structure between the installation machine 1 and the guard motor 4 that can be easily, easily, and firmly fixed by the engagement 3 and the second engagement portion 8 will be described.

(First embodiment)
Referring to FIG. 1, the first engaging portion 3 is provided with a through hole 3 a in the frame 16 so as to be aligned with four locations of the pin 8 a on the output shaft 6 side of the case body 5. On the output shaft 6 side of the case body 5, a pin 8 a that is a second engaging portion 8 that engages with the through hole 3 a is provided, and locking in the rotational direction about the shaft is possible. In the input shaft 2, a key 9 a material is fitted to the output shaft 6 of the guard motor 4, and the driving force of the driving motor 7 can be transmitted to the input shaft 2 by being connected.
The driving force receives a load on the input shaft 2 and reacts in the direction opposite to the driving rotation, but the frame 16 and the guard motor 4 are fixed by the first engaging portion 3 and the second engaging portion 8. Therefore, it can be efficiently transmitted to the input shaft 2.

  The fixing is an engagement by the through hole 3a and the pin 8a, and can be locked in the axial direction, but cannot be locked in the axial direction, and the input shaft 2 and the output shaft 6 are connected to the connecting bolt in the axial direction. By tightening at 11, the axial locking action becomes possible. The end surface of the input shaft 2 is provided with a tap hole 14, the input shaft 2 and the output shaft 6 are fitted, and a clearance adjustment collar 17 having an inner diameter larger than the diameter of the output shaft 6 is interposed, so that the press plate 12 Is brought into contact with the bearing of the input shaft 2 and the connecting bolt 11 is screwed into the tap hole 14 of the output shaft 6 so that the surface of the case body 5 and the surface of the frame 16 are joined and brought into surface contact with each other. Further, it can be further strengthened by locking the through hole 3a and the pin 8a. The presser plate 12 side can be formed as an integrated installation machine 1 in terms of design by covering the side surface with a protective plate 10 that serves as a safety cover that protects the rotating object.

(Second Embodiment)
In the joining structure shown in FIG. 2, the first engaging portion 3 of the installation machine 1 is provided with four through holes 3 for axially attaching the input shaft 2 to the frame 16 and engaging the second engaging portion 8. ing. The second engaging portion 8 alternately arranges pins 8a and bolts 8b arranged on the output shaft 6 side of the case body 5 on a diagonal line. The pin 8a engages with the through-hole 3a to bring the shaft rotation direction into a locked state. There are two bolts 8 b, which pass through the through holes 3 a of the frame 16, extend to the back surface side, and are tightened with the nuts 18, so that the guard motor 4 can be joined to the installation machine 1. The geared motor 4 is fastened to the frame 16 with bolts 8b so that the input shaft 2 and the output shaft 6 are fitted, and can be easily mounted. A protective plate 10 that covers the side surface is attached to the case body 5 on the opposite side to the frame 16 by screws, fitting, adhesive, or the like.

(Third embodiment)
In the joining structure shown in FIG. 3, the L-shaped metal fitting 3 b of the first engaging portion 3 is arranged on the input shaft 2 side of the installation machine 1, and the guard motor 4 is provided with the protruding surface 8 c of the second engaging portion 8. The first engaging portion 3 and the second engaging portion 8 are fixed with bolts 20. The L-shaped metal fitting 3b is fixed to the input shaft 2 side at two locations that are screwed, and is disposed at an interval that sandwiches the protruding surface 8c. The projecting surface 8 has a flat surface and is provided with a tap hole 14, and a bolt 20 can be threaded into the long hole 13 of the L-shaped metal fitting 3 b and screwed into the tap hole 14 to join the guard motor 4 to the installation machine 1. The geared motor 4 is fitted with the output shaft 6 to the input shaft 2 and is fixed by being sandwiched between two L-shaped metal fittings 3b.

(Fourth embodiment)
In FIG. 4, the first engagement portion 3 of the installation machine 1 is formed as a base plate 3 c, and the bolt 20 is passed and fixed. The geared motor 4 is provided with a recess 15 in the projection surface 8 c in the second engagement portion 8. When the guard motor 4 is joined to the installation machine 1, the output shaft 6 is fitted to the input shaft 2, and the four bolts 20 of the base plate 3 and the concave portion 15 of the projecting surface 8c are engaged and firmly fixed. can do.

FIG. 5 is applicable to the third and fourth embodiments. The step of the inrow 19 is provided around the input shaft, and when the guard motor 4 is attached, the output shaft 6 is inserted into the input shaft 2 to reduce the weight of the guard motor 4. Thus, the bolt 20 is easily screwed into the tap hole 14 or the recessed portion 15 at a position where the protruding surface 8c is fitted into the inrow 19 and stabilized.
FIG. 6 shows the output shaft 6 side of the geared motor 4, and the concave portions 15 of the projecting surface 8 c of the second engaging portion 8 are provided at three locations on the upper surface and the lower surface, respectively. The width of the recess 15 is several times the diameter of the bolt 20 to be locked, and has a space that can move forward, backward, left and right, so that when the output shaft 6 is fitted to the input shaft 2, the bolt 20 and the recess 15 Even if there is an error in the position, it is possible to adjust in the space of the wide recess 15, and by tightening the bolt 20, the joining can be strengthened.

  The perspective view of 1st Embodiment which adheres a guard motor to an installation machine.   The perspective view of 2nd Embodiment which adheres a geared motor to an installation machine.   The perspective view of 3rd Embodiment which adheres a geared motor to an installation machine.   The perspective view of 4th Embodiment which adheres a geared motor to an installation machine.   Sectional drawing which shows the adhering state of 3rd and 4th embodiment.   The front view by the side of the output shaft of the geared motor of 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Installation machine 2 Input shaft 3 1st engaging part,
4 Geared motor 5 Case body 6 Output shaft 7 Drive motor 8 Second engaging portion 9 Key groove 10 Protection plate 11 Connection bolt 12 Press plate 13 Long hole 14 Tap hole 15 Recess 16 Frame

Claims (6)

In a geared motor that has a hypoid gear that meshes with a drive motor, includes an output shaft in a direction orthogonal to the drive motor, and connects the output shaft to an input shaft of the installation machine to be fixed to the installation machine.
The geared motor includes a drive motor that receives a motor shaft pinion, a gear train that meshes a plurality of gears including the motor shaft pinion and a hypoid gear, a hollow output shaft provided in the gear train, and the gear train. Formed by a box-shaped case body which is provided with a bearing on the output shaft and enables transmission,
A first engaging portion of a through hole provided in an installation machine that receives the driving force of the guard motor;
A protruding bar-shaped second engaging portion provided on at least one surface of the case body on the output shaft side so as to be able to be locked to the first engaging portion;
A geared motor installation structure in which the first engaging portion and the second engaging portion are engaged and joined by the above. In a geared motor that has a hypoid gear that meshes with a drive motor, includes an output shaft in a direction orthogonal to the drive motor, and connects the output shaft to an input shaft of the installation machine to be fixed to the installation machine.
The geared motor includes a drive motor that receives a motor shaft pinion, a gear train that meshes a plurality of gears including the motor shaft pinion and a hypoid gear, a hollow output shaft provided in the gear train, and the gear train. Formed by a box-shaped case body which is provided with a bearing on the output shaft and enables transmission,
A first engaging portion of an installation machine that receives the driving force of the guard motor;
A second engaging portion of a projecting surface provided on at least one surface on the output shaft side of the case body so as to be able to be locked to the first engaging portion;
A geared motor installation structure characterized in that a bolt is provided in the first engaging portion and the bolt is locked to the projecting surface of the second engaging portion.   The input shaft of the installation machine has a tapped hole on the end surface, and is fitted to the hollow output shaft of the geared motor by being screwed into the tapped hole via a bolt. The first engaging portion and the second engaging portion 2. The installation structure of a geared motor according to claim 1, wherein the fixed structure is fixed by being screwed in the axial direction of joining. When the first engagement portion of the installation machine is an L-shaped metal fitting with a mounting hole and the output shaft of the input shaft geared motor of the installation machine is connected,
A projection surface sandwiched between the metal fittings of the installation machine, an engagement hole in the projection surface, a tap hole matched with the attachment hole in the engagement hole, and screwing into the tap hole through the attachment hole The geared motor installation structure according to claim 2, wherein a geared motor is joined to the installation machine. When the protruding surface is in a state where the input shaft of the installation machine and the output shaft of the geared motor are connected,
The first engaging portion of the installation machine includes a flat metal fitting, a concave portion provided on a projection surface of the second engaging portion aligned with an attachment hole of the flat metal fitting, and the concave portion when passing through the attachment hole. The geared motor installation structure according to claim 2, wherein the geared motor is joined to the installation machine by engaging with the gear.   The concave portion has a bottom surface with several bolt cross-sectional areas and a protruding surface that covers the periphery of the bottom surface, and provides an allowance space that allows slight movement forward, backward, left and right with respect to the input shaft. The structure for installing a geared motor according to claim 5.

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