JP2004100772A - Reduction gear with frame and its series - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reduction gear with a frame and its series allowing a combination of the reduction gear and the frame suited to a user's requirement, miniaturizing the device, and reducing the cost. <P>SOLUTION: This reduction gear 90 with the frame is provided with a reduction gear 20 having an output shaft 22 connected to a driven shaft 60 for transmitting the power and the frame 30 connected to the reduction gear 20 and storing the output shaft 22 and the driven shaft 60 in its casing 32 with their connection to each other. This reduction gear is provided with an intermediate member 40 which has a frame side attachment part F2 connectable to the frame 30 in one surface in the side of the own frame 30 between the reduction gear and the frame 30, and a reduction gear side attachment part F1 connectable to the reduction gear 20 and having a different dimension from the frame side attachment part F2 in the other surface in the side of the reduction gear 20. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a speed reducer with a gantry used for stirring, mixing and the like in a water treatment facility and the like and a series thereof.
[0002]
[Prior art]
Conventionally, as a speed reducer that performs stirring, mixing, etc. in water treatment and the like, the output shaft of the speed reducer and a driven shaft such as a stirring shaft connected to the output shaft can be housed in its own casing. 2. Description of the Related Art A speed reducer with a gantry provided with a gantry is known (for example, see Patent Document 1).
[0003]
In the fields of water treatment, science, medicine, food and the like, it is often necessary to stir the liquid in the tank. In such an application, since the stirring shaft (driven shaft) for driving the stirring blade for the stirring is usually arranged in the vertical direction, the upper end of the stirring shaft is moved from the inside of the tank to the outside. Will be erected vertically. Therefore, a “mount” is provided for installing a motor and a reduction gear for driving the stirring shaft further above the upper end of the stirring shaft. The stirring shaft and the output shaft of the speed reducer are connected inside the casing of the gantry.
[0004]
The reduction gear attached to this gantry can be used in accordance with the operating conditions such as the output torque of the stirring shaft required by the user and the bending moment and thrust load received from the driven member such as the stirring blade due to the resistance of the liquid to be stirred. Various types are provided according to the gantry to be prepared.
[0005]
[Patent Document 1]
JP-A-6-142479 (Example 1)
[0006]
[Problems to be solved by the invention]
However, in the case of the speed reducer with a gantry, the combination of the speed reducer and the gantry is generally determined to be one type according to the required torque of the stirring shaft (driven shaft). That is, only one type of speed reducer corresponding to the mount is mounted on the same mount. Therefore, the gantry that can be combined with the reduction gear is limited, and as a result, the use conditions are limited by the allowable bending moment of the gantry, the thrust load, and the like. I couldn't say.
[0007]
The present invention has been made in order to solve such a problem, and it is possible to combine a reduction gear and a gantry suitable for a user's needs, and also realize a reduction in size and cost of a drive device. It is an object of the present invention to provide a speed reducer with a gantry and a series thereof.
[0008]
[Means for Solving the Problems]
The present invention provides a speed reducer having an output shaft connected to a driven shaft so as to transmit power, and a state in which the output shaft and the driven shaft are connected to the speed reducer while being connected to the reducer. And a gantry that can be accommodated in the gantry, comprising a gantry-side joint that can be connected to the gantry on one surface of the gantry side between the speed reducer and the gantry. In addition, the other surface of the speed reducer side is provided with an intermediate member that can be connected to the speed reducer and has a speed reducer side fitting portion having a different size from the gantry side fitting portion. It is a solution to the problem.
[0009]
ADVANTAGE OF THE INVENTION According to this invention, the reduction gear and gantry with a different connection part size can be combined via an intermediate member, and the gantry reduction gear suitable for user needs can be provided. That is, for example, since a speed reducer having a joint size smaller than the joint size of the gantry can be connected, the size and cost of the device can be reduced. Also, for example, even when the viscosity of the liquid material to be stirred is changed to a slightly higher value, only the reduction gear side is changed to the high output torque type while the stirring shaft (driven shaft) side including the gantry is left as it is. It is possible to flexibly cope with a change in use at low cost.
[0010]
In addition, if the speed reducer has an output shaft having a different shaft diameter from the driven shaft and a joint member capable of connecting the output shaft having a different shaft diameter to the driven shaft, the joint member is Through this, a reduction gear having an output shaft having a shaft diameter different from that of the driven shaft can be connected to a driven device, and the reduction gear can be connected to various driven devices, thereby expanding its application range. it can.
[0011]
Such a speed reducer with a gantry can provide further great advantages when it is serialized as follows.
[0012]
That is, a speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and a speed reducer connected to the speed reducer and housed in its own casing with the output shaft and the driven shaft connected to each other. A possible mount, and a series of a reduction gear with a mount comprising: a reducer having the same mounting size as the mounting size of the mount, and a reducer having a mounting size different from the mounting size of the mount. And, when selecting a speed reducer having the same fitting size, when directly connecting the speed reducer and the gantry, and selecting a speed reducer having the different fitting size, The reduction gear and the gantry can be connected to the gantry on one surface on the gantry side, and can be connected to the reduction gear on the other surface on the reduction gear side. And a reduction gear side connection part having a size different from that of the gantry side connection part. May series connected by an intermediate member having.
[0013]
A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power; and a speed reducer connected to the speed reducer and housed in its own casing in a state where the output shaft and the driven shaft are connected to each other. In a series of speed reducers with a gantry comprising a possible gantry, a plurality of speed reducers having different dimensional sizes from the same dimensional size with respect to the same gantry, each having a different dimensional size, are provided for the same gantry. If the connection can be made by a member, an optimum reduction gear (for example, a reduction gear having an optimum output torque) to be combined with the same gantry can be selected from a plurality of reduction gears according to the use application. Therefore, for example, as the intermediate member, a plurality of intermediate members having a gantry-side fitting portion having the same size as the same gantry, and having a plurality of speed reducer-side fitting portions each having the same size as the plurality of speed reducers. By preparing a type and combining a speed reducer selected from the plurality of speed reducers and an intermediate member having a speed reducer side fitting portion of the same size as the speed reducer, the plurality of speed reducers are May be connectable.
[0014]
Further, a speed reducer having an output shaft connected to the driven shaft so as to be capable of transmitting power, and a speed reducer connected to the speed reducer and housed in its own casing in a state where the output shaft and the driven shaft are connected to each other. In a series of speed reducers with a gantry comprising a gantry, the same gantry and the same driven shaft have a mounting dimension different from the mounting dimension of the gantry, and the driven shaft If a plurality of reduction gears having output shafts having different shaft diameters can be connected by the intermediate member and the joint member, a reduction gear having an output shaft having a shaft diameter different from that of the driven shaft can be selected. Therefore, for example, as the intermediate member, a plurality of intermediate members having a gantry-side fitting portion having the same size as the same gantry, and having a plurality of speed reducer-side fitting portions each having the same size as the plurality of speed reducers. In addition to preparing the types, the coupling member has the same driven shaft side connection structure as the same driven shaft, and has the same reduction gear side connection structure as the output shafts of the plurality of reduction gears. A plurality of types of joint members are prepared, a speed reducer selected from the plurality of speed reducers, an intermediate member having a speed reducer side fitting portion having the same dimensions as the speed reducer, and a speed reducer side connection structure identical to the speed reducer By combining with a joint member having the same, the plurality of reduction gears may be connectable to the same gantry and the same driven shaft.
[0015]
Also, a speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and a state in which the output shaft and the driven shaft are connected to the speed reducer side and inside its own casing. In a series of reduction gears with a mount that can be accommodated, and with only the intermediate member, or with at least one type of a reduction gear with a mount that includes the intermediate member and the joint member, the same reduction gear On the other hand, if a plurality of pedestals having an engagement dimension different from the engagement dimension of the speed reducer can be connected by the intermediate member, or the intermediate member and the coupling member, the same pedestal can be provided from the plurality of pedestals depending on the use application. It is possible to select an optimal mount (for example, a mount capable of receiving the bending moment of the stirring shaft or the reaction force of the thrust load with a margin) to be combined with the reduction gear.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a side sectional view of a gantry-equipped drive device (hereinafter simply referred to as a drive device) 100 to which a gantry-equipped speed reducer according to an embodiment of the present invention is applied, and FIG. 2 is an intermediate member in FIG. FIG. 4 is a partially enlarged view of the vicinity of a joint 40 and a joint member 50. The driving device 100 includes a motor 10 and a speed reducer 90 with a gantry.
[0018]
The motor 10 is connected to and integrated with the speed reducer 20 of the gantry speed reducer 90 at a motor side connection portion MF of the gantry speed reducer 90 by a bolt (not shown), and the power of the motor 10 is The power can be transmitted to the speed reducer 20 via an input shaft (not shown) of the speed reducer 20.
[0019]
The gantry-equipped speed reducer 90 mainly includes a speed reducer 20, a gantry 30, an intermediate member 40 provided between the speed reducer 20 and the gantry 30, and a joint member 50.
[0020]
The speed reducer 20 is connected to the intermediate member 40 by a bolt 70a at a speed reducer side connection portion F1 of the intermediate member 40. Further, the speed reducer 20 includes an input shaft and a speed reduction mechanism (hereinafter simply referred to as an input shaft and a speed reduction mechanism, respectively) and an output shaft 22 (not shown).
[0021]
The input shaft is connected to the motor 10 so as to be capable of transmitting power, and is rotatable about the axis L1. The reduction mechanism can reduce the rotation of the input shaft. The output shaft 22 is rotatable about the same axis L1 as the input shaft. Further, the output shaft 22 is connected to an upper connecting portion 61 which constitutes a part of a driven shaft (for example, a stirring shaft) 60 via a joint member 50 described later, and can be integrally rotated.
[0022]
The main body of the driven shaft 60 (not shown) is connected to the upper connecting portion 61 via a shaft joint 62 provided at a lower portion (lower side in the drawing) of the upper connecting portion 61, whereby The main body is rotationally driven by rotation of the output shaft 22.
[0023]
The intermediate member 40 has a gantry-side connection portion F2 that can be connected to the gantry 30 on one surface 40b on the gantry 30 side (the lower side in the figure), and has a gantry-side coupling portion F2 on the reduction gear 20 side (upper side in the figure). One surface 40a has a speed reducer-side fitting portion F1 that can be connected to the speed reducer 20 and has a different size from the gantry-side fitting portion F2. More specifically, a bolt hole 71a in which a bolt 70a for connecting the speed reducer 20 and the intermediate member 40 is mounted at a position away from the axis L1 by a distance e1 in the speed reducer-side fitting portion F1. Is provided. Further, a bolt 70b for connecting the gantry 30 and the intermediate member 40 is provided at a position distant from the axis L1 by a distance e2 (a position distant from the axis L1 from the distance e1) at the gantry side connection portion F2. A bolt hole 71b to be attached is provided.
[0024]
The gantry 30 is connected to the intermediate member 40 by a bolt 70b at a gantry-side joint F2 of the intermediate member 40. The gantry 30 can be accommodated in a gantry casing 32 composed of a main body casing 31 and a lower cover 33 in a state where the output shaft 22 of the speed reducer 20 and the (upper connection portion 61 of) the driven shaft 60 are connected. is there.
[0025]
A bearing 34a is provided on the upper part of the main body casing 31 of the gantry 30, and a bearing 34b is provided on the lower cover 33. A joint member 50 for connecting the output shaft 22 and the driven shaft 60 is provided. The lower portion 61b of the upper connecting portion 61 is rotatably supported by the bearing 34b while being rotatably supported by the bearing 34a.
[0026]
The joint member 50 has a substantially cylindrical shape including a hollow portion 50a having a small diameter portion 50b and a large diameter portion 50c. The small diameter portion 50b of the hollow portion 50a has an inner diameter W1 substantially the same as the shaft diameter W1 of the output shaft 22. The large diameter portion 50c has an inner diameter W2 (W2> W1) that is substantially the same as the shaft diameter W2 of the distal end portion 61a of the upper connecting portion 61. The output shaft 22 of the speed reducer 20 is inserted into the small-diameter portion 50b of the joint member 50, and the joint member 50 and the output shaft 22 are engaged via a key 22a so as to be able to transmit power. On the other hand, the distal end portion 61a of the upper connecting portion 61 is inserted into the large-diameter portion 50c of the joint member 50, and the joint member 50 and the upper connecting portion 61 are engaged with each other via the key 60c so as to be able to transmit power. are doing. 70c is a bolt for fixing a plate for preventing the key 60c from falling off. Note that the bolt 70c is not always necessary, and the axial movement of the key 60c is stopped by the inner periphery of the joint member 50 itself, so that the bolt 70c becomes unnecessary. Accordingly, the output shaft 22 and the driven shaft 60 of the speed reducer 20 can be integrally rotated via the joint member 50 and can transmit power.
[0027]
Next, the operation of the drive device 100 to which the speed reducer with a gantry according to this embodiment is applied will be described.
[0028]
When the motor 10 is energized, the input shaft of the speed reducer 20 connected to the motor 10 rotates about the axis L1. The rotation of the input shaft is transmitted to the output shaft 22 while being reduced in speed by the speed reduction mechanism of the speed reducer 20. Next, as the output shaft 22 rotates, the joint member 50 that engages with the output shaft 22 and the upper connecting portion 61 (of the driven shaft 60) that engages with the joint member 50 center on the axis L1. Finally, the power of the upper connecting portion 61 is transmitted to the main body of the driven shaft 60 via the shaft joint 62 provided on the upper connecting portion 61.
[0029]
According to the speed reducer with a gantry 90 according to the example of the embodiment of the present invention, between the speed reducer 20 and the gantry 30, on one surface 40 b on the gantry 30 side, a gantry side mount that can be connected to the gantry 30. An intermediate portion having a joint portion F2 and having, on one surface 40a on the side of the speed reducer 20, a speed reducer-side joint portion F1 that can be connected to the speed reducer 20 and has a different size from the gantry-side joint portion F2. Since the member 40 is provided, the speed reducer 20 and the gantry 30 having different fitting portions can be combined via the intermediate member 40, and a gantry-type speed reducer 90 suitable for user needs can be provided. Therefore, as shown in the above embodiment, for example, the reduction gear 20 having the fitting portion dimension (F1) smaller than the fitting portion dimension (F2) of the gantry 30 can be connected, and thus the drive device 100 can be downsized. In addition, cost reduction can be realized.
[0030]
Further, for example, even when the viscosity of the liquid to be stirred is changed to be slightly higher, the output shaft 60 alone such as the stirrer shaft including the gantry 30 is left as it is, and only the reduction gear 20 side is subjected to higher output torque. It can be changed to a mold, and can flexibly respond to a change in use at low cost.
[0031]
Furthermore, since the joint member 50 is provided to enable the output shaft 22 and the driven shaft 60 (upper connecting portion 61) to be connected, the driven shaft 60 and a shaft having a diameter different from the shaft diameter W2 of the driven shaft 60 are provided. The output shaft 22 having the diameter W1 can be connected, the speed reducer 20 can be connected to driven shafts of various sizes, and the applicable range of the gantry-equipped speed reducer 90 can be widened. Moreover, since only the reduction gear 20 can be replaced while the gantry 30 is kept as it is, replacement, connection, etc. are easy.
[0032]
Next, a series of the above-described gantry-equipped speed reducer 90 will be described.
[0033]
FIG. 3 shows, for the same gantry 30a1 and the same driven shaft 60a1, a gantry 20a1 having the same mounting portion F3 and the same shaft diameter W3 as the gantry 30a1, and different mounting portions F4, F5,. And a plurality of speed reducers 20b1, 20c1,... Having output shafts 22b, 22c,... Having different shaft diameters from the driven shaft 60a1. FIG.
[0034]
(A) in FIG. 3 is a frame-equipped speed reducer including a frame 30a1 and a speed reducer 20a1 having an output shaft 22a having the same joint portion F3 as the frame 30a1 and the same shaft diameter W3 as the driven shaft 60a1. .
[0035]
(B) in FIG. 3 is a combination example corresponding to the above-described speed reducer with a gantry described with reference to FIGS. 1 and 2, and includes a reducer-side joint F4 and a gantry-side joint F3. And a joint member 50a1 for connecting the output shaft 22b (shaft diameter W4) of the reduction gear 20b1 and the driven shaft 60a1 (shaft diameter W3) having a different shaft diameter from the output shaft 22b. Thus, a reduction gear with a mounting that is different from the mounting 30a1 and has a shaft diameter different from that of the driven shaft 60a1 and the mounting 30a1 can be connected.
[0036]
Further, (C) in FIG. 3 shows an intermediate member 40b1 having a reduction gear side connection part F5 and a gantry side connection part F3, an output shaft 22c (shaft diameter W5) of the reduction gear 20c1, and the output shaft 22c. And a driven shaft 60a1 (shaft diameter W3) having a different shaft diameter from the gantry 30a1 by providing a joint member 50b1 capable of connecting the shaft and the driven shaft 60a1 (shaft diameter W3). , And a gantry 30a1.
[0037]
If such a series is provided, an optimal reducer (for example, a reducer having an optimal output torque) to be combined with the same gantry 30a1 from a plurality of reducers 20a1, 20b1, 20c1,... It becomes selectable. Also, for example, as shown in FIGS. 4A and 4B, even when a small reduction gear 20y is developed due to the improvement of the reduction gear 20x, the same mount 30a1 is used for both. Can be selectively combined with each other.
[0038]
In this example, two types of gantry speed reducers 90 each including the intermediate member 40 and the joint member 50 are shown ((B) and (C) in FIG. 3), but the gantry speed reducer 90 according to the present invention is shown. Is not limited to this, and any series may be used as long as it includes at least one type of gantry-equipped speed reducer 90 including the intermediate member 40 and the joint member 50. Therefore, for example, (A) and (B), (B) and (C), (C) as well as a series of the gantry-equipped speed reducer 90 including (A), (B) and (C) in the drawing. And (A) may be a series of the gantry-equipped reduction gear 90, and further, a series provided with a plurality of gantry-equipped reduction gears 90 other than (A), (B) and (C). Good. Similarly, the series of other reduction gears with a gantry 90 described below is not limited to the series examples shown in the respective drawings.
[0039]
FIG. 5 shows at least one type of gantry-equipped speed reducer (in this example, two types (B) and (C) in FIG. 5) provided with the above-described intermediate member 40, and the same gantry 30a2. , Is a diagram schematically showing an example of a series of reduction gears with a mount that can be connected to a plurality of reduction gears 20b2, 20c2,... Having connection portions F8, F9,.
[0040]
(A) in FIG. 5 is a reduction gear with a gantry composed of a gantry 30a2 and a reduction gear 20a2 having the same mounting portion F7 as the gantry 30a2, and (B) is a reduction gear side mounting portion F8 and a gantry side. By providing the intermediate member 40a2 having the connecting portion F7, the speed reducer with a gantry capable of connecting the speed reducer 20b2 and the gantry 30a2 having different connecting portions to each other. (C) shows the speed reducer-side connecting portion F9 and By providing the intermediate member 40b2 having the gantry-side fitting portion F7, the gantry-equipped speed reducer is capable of connecting the gantry 30a2 with the speed reducer 20c2 having different fitting portions. In general, different reduction gears have different output shafts, but in this series, the output shafts 22a2, 22b2, 22c2 of the respective reduction gears 20a2, 20b2, 20c2 are commonly used.
[0041]
By providing such a series, a plurality of speed reducers 20a2, 20b2, 20c2,... Having the same shaft diameter (W3) as the driven shaft 60a2 but different shapes and sizes for the same gantry 30a2. .. Can be selected, and the type of the joint 50 required can be reduced to one type.
[0042]
FIG. 6 shows at least one type of a reduction gear with a gantry provided with only the intermediate member 40a3 or both the intermediate member 40a3 and the joint member 50a3 (in this example, two types of (B) and (C) in FIG. 6) ) Is a schematic diagram showing an example of a series of a speed reducer with a gantry that is capable of connecting a plurality of gantry 30b3,... Having a joint F11 different from the speed reducer 20a3 to the same speed reducer 20a3. .
[0043]
If such a series is provided, an optimum mount (for example, a bending moment of the driven shaft 60 or a reaction force of a thrust load) to be combined with the same reducer 20a3 from a plurality of mounts 30a3, 30b3,. That can be easily received) can be selected.
[0044]
Also, for example, when the driven device needs to be replaced due to a change in the agitated material, etc., but the torque required for driving the driven device after the change does not change, the same motor and the same speed reducer are used. It can be used as it is, and cost reduction can be realized.
[0045]
In the above embodiment, the size of the reduction gear side connection portion F1 of the intermediate member 40 is smaller than the size of the gantry side connection portion F2. However, the present invention is not limited to this. It is sufficient that the dimensions of the machine-side joint F1 and the gantry-side joint F2 are different.
[0046]
Although the shaft diameter W1 of the output shaft 22 is smaller than the shaft diameter W2 of the driven shaft 60, the output shaft 22 may be an output shaft having a shaft diameter larger than the shaft diameter W2 of the driven shaft 60. The shape of the joint member 50 enabling the connection between the output shaft 22 and the driven shaft 60 is not limited to the shape shown in the example of the above embodiment.
[0047]
Furthermore, although the output shaft 22 of the reduction gear 20 and the axis L1 of the input shaft are the same, the present invention is not limited to this.
[0048]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, while being able to combine a reduction gear and a gantry suitable for a user's needs, it is possible to provide a gantry-equipped reduction gear and a series thereof, which can also realize reduction in size and cost of the device. is there.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a drive device to which a mount with a gantry according to an embodiment of the present invention is applied. FIG. 2 is a partially enlarged view around an intermediate member and a joint member of the gantry with a gantry in FIG. 3. A deceleration with a gantry having the same gantry and driven shaft, and a plurality of reduction gears having a coupling portion different from the gantry and having an output shaft having a shaft diameter different from that of the driven shaft. FIG. 4 is a schematic diagram showing an example of a series of machines. FIG. 4 is a diagram showing an example in which two types of reduction gears are combined with the same motor. FIG. 6 is a schematic view showing an example of a series of a speed reducer with a gantry to which the speed reducer can be connected. FIG. 6: A gantry capable of connecting a plurality of gantry having a joint different from the speed reducer to the same speed reducer. Diagram showing an example of a series of reduction gears
DESCRIPTION OF SYMBOLS 10 ... Motor 20 ... Reduction gear 22 ... Output shaft 30 ... Stand 32 ... Stand casings 34a and 34b ... Bearing 40 ... Intermediate member 50 ... Joint member 60 ... Driven shaft 60c ... Key 61 ... Upper connecting part 62 ... Shaft joint 70a, 70b, 70c: Bolt 90: Reducer with mount 100 ... Drive unit with mount MF ... Motor-side joint F1 ... Reducer-side joint F2 ... Stand-side joint

Claims (8)

A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and being connected to the speed reducer and capable of being housed in its own casing with the output shaft and the driven shaft connected to each other. In a reduction gear with a gantry comprising:
Between the speed reducer and the gantry, one surface on the gantry side has a gantry-side fitting portion connectable to the gantry, and the other surface on the speed reducer side has the speed reducer and A speed reducer with a gantry, comprising an intermediate member that is connectable and has a reduction gear side tie portion having a size different from that of the gantry side mount portion. In claim 1,
The reduction gear has an output shaft having a different shaft diameter from the driven shaft,
A speed reducer with a gantry, comprising: a joint member capable of connecting the output shaft having the different shaft diameter to the driven shaft. A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and being connected to the speed reducer and capable of being housed in its own casing with the output shaft and the driven shaft connected to each other. In a series of reduction gears with a gantry comprising a gantry,
A reduction gear having the same mounting dimension as the mounting dimension of the gantry, and a speed reducer having a mounting dimension different from the mounting dimension of the gantry,
When selecting the speed reducer having the same fitting size, the speed reducer and the gantry are directly connected, and when selecting the speed reducer having the different fitting size, the speed reducer and the The gantry has a gantry-side fitting portion connectable to the gantry on one surface on the gantry side, and is connectable to the speed reducer on the other surface on the speed reducer side, and A series of reduction gears with a gantry, wherein the reduction gears can be connected by an intermediate member having a reduction gear-side coupling part having a size different from that of the gantry-side coupling part. A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and being connected to the speed reducer and capable of being housed in its own casing with the output shaft and the driven shaft connected to each other. In a series of reduction gears with a gantry comprising a gantry,
A speed reducer with a stand, wherein a plurality of speed reducers each having a different fit size from the mount size of the mount and each having a different fit size can be connected to the same mount by an intermediate member. Series. In claim 4,
As the intermediate member, a plurality of types of intermediate members having a gantry-side fitting portion having the same dimensions as the same gantry, and having a reduction gear-side fitting portion each having the same size as the plurality of reduction gears are prepared. By combining a speed reducer selected from the plurality of speed reducers and an intermediate member having a speed reducer side fitting portion of the same size as the speed reducer, the plurality of speed reducers are A series of speed reducers with a stand that can be connected. A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and being connected to the speed reducer and capable of being housed in its own casing with the output shaft and the driven shaft connected to each other. In a series of reduction gears with a gantry comprising a gantry,
For the same mount and the same driven shaft, a plurality of speed reducers having an installation size different from the installation size of the mount and an output shaft having a shaft diameter different from that of the driven shaft are provided as intermediate members and A series of speed reducers with a gantry, which can be connected by joint members. In claim 6,
As the intermediate member, a plurality of types of intermediate members having a gantry-side fitting portion having the same dimensions as the same gantry, and having a reduction gear-side fitting portion each having the same size as the plurality of reduction gears are prepared. ,
As the coupling member, a plurality of types of coupling members having the same driven shaft and the same driven shaft side coupling structure, and having the same reduction gear side coupling structure as the output shafts of the plurality of reduction gears, respectively. Prepare,
Combining a speed reducer selected from the plurality of speed reducers, an intermediate member having a speed reducer side fitting portion of the same size as the speed reducer, and a joint member having the same speed reducer side connection structure as the speed reducer A series of reduction gears with a gantry, wherein the plurality of reduction gears can be connected to the same gantry and the same driven shaft. A speed reducer having an output shaft connected to the driven shaft so as to be able to transmit power, and being connected to the speed reducer and capable of being housed in its own casing with the output shaft and the driven shaft connected to each other. In a series of reduction gears with a gantry comprising a gantry,
At least one kind of the speed reducer with a gantry according to claim 1 or 2, and a plurality of gantry having the same size as the speed reducer with respect to the same speed reducer is provided on the intermediate member or the intermediate. A series of speed reducers with a gantry, characterized in that they can be connected by members and joint members.

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