JP4459382B2 - Geared motor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a geared motor in which a motor and a speed reducer are integrally formed.
[0002]
[Prior art]
FIG. 3 shows a configuration of, for example, a vertically mounted geared motor in which the motor unit and the speed reducer unit are integrally formed. In the figure, 1 is a motor, 1a is a terminal box of the motor 1, 2 is a bracket for connecting a reduction gear to the motor 1, 5 is a reduction gear, 6 is a gear case in which a reduction gear is incorporated, and 6a is in the gear case 6. An oil discharge port for discharging the lubricating oil, 7 is an output shaft that is decelerated and rotated by the reduction gear, 8 is an oil supply port for supplying the lubricating oil, and 9 is an oil surface that indicates the oil level of the lubricating oil in the gear case 6 A total of 10 is a fixing bolt for connecting the bracket 2 and the gear case 6 together.
[0003]
The vertical mounting type geared motor shown in FIG. 3 is supplied to a device driven by the geared motor, and then supplies lubricating oil from the oil supply port 8 to a predetermined position of the oil level gauge 9. A breather provided with an air passage is attached to suppress an increase in internal pressure due to a temperature rise.
[0004]
[Problems to be solved by the invention]
As described above, even if the conventional geared motor has the same configuration of the motor unit 1 and the speed reducer unit 5, the amount of lubricating oil differs between the horizontal mounting type and the vertical mounting type, and the position and direction of the oil level The oil level gauge 9 and the oil supply port 8 are arranged at positions suitable for the horizontal mounting type and the vertical mounting type, respectively, and the shape of the gear case 6 is different between the horizontal mounting type and the vertical mounting type. In addition, since each part is different, there are many types of parts, and productivity is not so good.
[0005]
The present invention has been made to solve the above problems, and the oil level gauge is located at a position where the appropriate oil level is indicated in either the horizontal mounting or the vertical mounting. It is an object of the present invention to provide a geared motor in which each of a horizontal mounting type and a vertical mounting type can be configured with the same parts.
[0006]
[Means for Solving the Problems]
In the geared motor according to claim 1 of the present invention, the oil level gauge is attached to the side surface of the gear case at the position where the appropriate oil level of the reduction gear portion of the speed reducer during horizontal mounting and the appropriate oil level during vertical mounting intersect. This is a configuration.
[0007]
According to a second aspect of the present invention, there is provided a geared motor according to the first aspect of the present invention, wherein the oil level gauge of the gear case at the position where the appropriate oil level position for vertical mounting and the appropriate oil level position for horizontal mounting intersect. It is set as the structure attached to.
[0008]
According to a third aspect of the present invention, the geared motor is provided with two oil supply openings in the gear case, and one of the oil supply openings is configured to be able to supply oil downward from above the geared motor when mounted horizontally, The oil filler port is configured so that oil can be supplied downward from above the geared motor when vertically mounted.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
The structure of the geared motor of Embodiment 1 is shown in FIG. Reference numeral 20 denotes a motor unit, and 21 denotes a motor shaft, and a first gear 21a of a reduction gear unit is formed at a tip on one end side. Reference numeral 22 denotes a bracket provided with a flange 22f connected to the speed reducer portion. An oil supply port 22a is provided at a position above the flange 22f where the geared motor is horizontally mounted.
[0010]
31 is a gear case in which the reduction gear is accommodated, and the geared motor has an oil level at the side where the proper oil level position of the horizontal lubricating oil horizontally mounted and the vertical appropriate oil level position of the vertical mounting intersect. The meter mounting seat 31a, the upper position in the horizontally mounted state, and the oil supply port 31b on the side of the proper oil level position in the vertically mounted state, and either the vertically mounted state or the horizontally mounted state In this state, the oil drain port 31c is provided at a lower position (lower left in the figure). The oil supply port 22a provided in the flange 22f of the bracket 22, the oil level gauge mounting seat 31a and the oil supply port 31b provided in the gear case 31 are formed in the same size and the same structure.
[0011]
32 is a second gear, 33 is a third gear 33a formed in the middle part, one of which is a rotary shaft fitted with the second gear 32, 34 is a fourth gear, and 35 is a second gear in the middle part. This is an output shaft having four gears 34 fitted therein and one end projecting to the outside. 41 is an oil level gauge, 42a is a breather configured to ventilate the outside air, and 42b is a sealing plug for sealing the oil supply port 31b. The sealing plug 42b is also attached to the oil supply port 22a at the time of horizontal attachment. The mounting portions of the oil level gauge 41, the breather 42a, and the sealing plug 42b are formed in the same manner so that they can be mounted on any of the oil level gauge mounting seat 31a, the oil supply port 22a, and the oil supply port 31b. A reduction gear unit 30 includes a gear case 31, a second gear 32, a rotary shaft 33, a fourth gear 34, an output shaft 35, an oil level gauge 41, a breather 42a, and a sealing plug 42b.
[0012]
The horizontal mounting state of the geared motor of FIG. 1 is shown in FIG. 2 (a), and the vertical mounting state is shown in FIG. 2 (b). When the geared motor is mounted horizontally, an oil level gauge 41 is attached to the oil level gauge mounting seat 31a, a sealing plug 42b is attached to the oil supply opening 22a, and a breather is supplied to the oil supply opening 31b after lubricating oil is supplied. 42a is attached.
[0013]
When the geared motor is mounted vertically, an oil level gauge 41 is attached to the oil level gauge mounting seat 31a, a sealing plug 42b is attached to the oil supply opening 31b, and a breather 42a is attached to the oil supply opening 22a after lubricating oil is supplied. It is done.
[0014]
The geared motor configured in this way is in a state in which the oil level indicator of the oil level gauge 41 indicates the appropriate oil level both in the case of horizontal mounting and in the case of vertical mounting. In each mounting state in the case of vertical mounting, the upper oiling port, that is, the oiling port 31b in the case of horizontal mounting, the oiling port 22a in the case of vertical mounting, the breather 42a is attached after refueling, and the oiling port that is not lubricated Can be accommodated by attaching a sealing plug 42b, and the geared motor has the same structure and can be adapted for both horizontal and vertical mounting. Therefore, there is no distinction between vertical mounting and horizontal mounting of parts such as a gear case, and there are few types of parts, and the geared motor has high productivity.
[0015]
Embodiment 2. FIG.
In the second embodiment, the oil level can be confirmed from both sides of the geared motor. The method is as follows. The oil level gauge is provided on both sides of the gear case 31 at a position where the proper oil level position in the case of horizontal mounting of the gear case 31 having the configuration shown in FIG. An oil level gauge 41 is attached to each of the mounting seats 31a, and the oil supply port 31b for horizontal mounting is provided at the side of the appropriate oil level for vertical mounting and on the opposite side of the oil level gauge mounting seat 31a. The oil level gauge 41 can be attached, and the oil level gauge 41 is attached at the time of vertical installation.
[0016]
In this way, with a configuration in which a plurality of oil level gauges 41 are installed, the oil level can be confirmed from two directions for horizontal mounting, and the oil level can be confirmed from three sides of the geared motor for vertical mounting. Thus, the oil level can be confirmed even when one is blinded depending on the mounting position.
[0017]
【The invention's effect】
Since the geared motor according to claim 1 of the present invention has a configuration in which the oil level gauge is attached to the side surface of the gear case at the position where the appropriate oil level position for horizontal mounting and the appropriate oil level position for vertical mounting intersect. The vertical mounting and the horizontal mounting have the same structure, and a high-productivity geared motor that can be produced without distinction between horizontal mounting and vertical mounting can be configured.
[0018]
According to a second aspect of the present invention, there is provided a geared motor according to the first aspect, wherein the oil level gauge of the first aspect is provided on both sides of the gear case at a position where an appropriate oil level position for horizontal mounting and an appropriate oil level position for vertical mounting intersect. Since it was set as the structure attached to the side surface, even if one of the attachment positions is blinded, it becomes a structure which can confirm an oil level.
[0019]
According to a third aspect of the present invention, the geared motor is provided with two oil supply openings in the gear case, and one of the oil supply openings is configured to be able to supply oil downward from above the geared motor when mounted horizontally, Since the oil supply port is configured so that oil can be supplied from the upper side to the lower side of the geared motor during vertical mounting, the geared motor has the same structure and can be adapted for both horizontal mounting and vertical mounting.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a geared motor according to a first embodiment.
FIG. 2 is a diagram showing mounting states for vertical mounting and horizontal mounting according to the first embodiment.
FIG. 3 is a configuration diagram of a conventional geared motor.
[Explanation of symbols]
20 motor part, 21 motor shaft, 22 bracket, 31 gear case, 41 oil level gauge, 42a breather, 42b sealing plug.

Claims (3)

  In a geared motor in which the motor unit and the reduction gear unit are configured integrally, the side surface of the gear case at the position where the appropriate oil level of the reduction gear unit for horizontal mounting and the appropriate oil level for vertical mounting intersect An oil level gauge is attached to the geared motor.   The geared motor according to claim 1, wherein oil level gauges are attached to both side surfaces of the gear case at a position where an appropriate oil level for horizontal mounting and an appropriate oil level for vertical mounting intersect. The gear case is provided with two oil supply ports, and one of the oil supply ports is configured to be able to supply oil downward from above the geared motor when installed horizontally, and the other oil supply port is provided from above the geared motor when installed vertically. The geared motor according to claim 1, wherein the geared motor is configured to be refueled downward.

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