JPS58217827A - Variable speed hydraulic coupling - Google Patents

Abstract

PURPOSE:To make the installation of a pump to a body casing easily and surely achievable, by fitting the tip part of piping attached solidly to a centrifugal pump in advance, in the setting port of a flow rate adjusting device as a featured constitution. CONSTITUTION:A centrifugal pump 15 is insert from an insertion port 1a made up at the bottom of a body casing 1 beneath an oil tank 14 and installed by a clamping bolt 41. At a discharge port 15a of the centrifugal pump 15, there is provided with piping 19 arranged almost vertically in advance, and when the centrifugal pump 15 is installed, the upper end part of the piping 19 is inserted into a setting port 20a of an inflow chamber 20a in a flow rate adjusting device 20 and fitted therein. Therefore, the piping 19 interconnecting the pump 15 with the flow rate adjusting device 20 can be certainly connected with a one-touch motion.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that a fluid m'r=, in particular, an input shaft and an output shaft are supported in the main body casing in approximately the same length, and a runner is freely installed in the impeller attached to the input shaft in the same direction. At the same time, the runner is installed on the output shaft (=11), while supplying the working fluid into the L impeller with the working fluid supply pump, the rotation of the human shaft is transmitted to the output shaft, and the rotation of the working fluid is transmitted to the output shaft. O(
The impeller, l'l I'l' of the internal fluid of the runner
This invention relates to a horizontal variable speed fluid coupling that controls the rotational speed of an output shaft by freely adjusting the position of one surface from the shaft center.

In the horizontal variable speed fluid joint of type m above, the working fluid t
If a centrifugal pump is used as the Jli supply II pump, it must be placed below the free surface of the oil tank on the side of the main casing, and the flow I distributed near the output shaft above
ff and fllt1 are connected to the node device N by a rudder device.

2- Conventionally, the method of connecting this type of piping to a pump or regulating device was a screw connection, and a union or seven langes were attached in the middle of the piping so that it could be removed.

However, such a conventional connection method has drawbacks such as not only the installation and removal of the pump as well as the piping is complicated and time-consuming, but also that it is difficult to make a complete connection.

The present invention has been made in order to eliminate the drawbacks of the conventional fluid coupling described above, and the above piping is integrally attached to a working fluid supply pump or a flow rate adjustment device in advance, and the pump is attached to the bottom of the main body casing. A fluid coupling that allows one-touch and reliable connection by fitting the tip of the piping into the mounting port of the flow rate regulator or working fluid supply pump at the same time as installing it through the provided insertion port. The purpose is to provide the following.

In the present invention, an input shaft and an output shaft are supported substantially horizontally in a main body casing, a runner is rotatably arranged in an impeller attached to the input shaft, and the runner 3-1 is mounted on the output shaft. By connecting the operating driftwood rJli supply pump, which is rotatably driven by the above-mentioned human-powered shaft, to the flow rate adjustment device through piping, the supply amount can be adjusted while -
1- In the fluid line, the rotational speed of the output shaft is controlled by supplying a working fluid into the inflator to adjust the position jPt of the free surface of the internal fluid of the impeller and runner from the axis center; 1) Insert the pump into the bottom of the main body casing.
When tightening from 1.
The adjustment device or the pump for supplying the working fluid shall be installed on January 1 to 11.
This is a Machihen Renryu Momente, which is characterized by its appearance.

Embodiments of the present invention will be described below with reference to the drawings. In the I￥SI diagram, 1 is the main body casing, the input shaft 3 is supported on the bearing 2 on the end side of the casing, and the 7 lange 4 is on the right inner end of the human power shaft 3. An impeller 5 is integrally mounted through the impeller (3), and a sleeve 6 is fixed to the impeller (3) and supported by a bearing 8 of a bearing body 7 provided in the main body casing 1 (1). Reference numeral 9 denotes an output shaft, which is supported by a bearing 10 on the other end side of the main body caning 1, and whose left inner end is supported by a bearing 11 provided in the flange 4. A runner 12 is attached to the output shaft 9 and can freely rotate within the impeller 5.

The lower part of the bearing body 7 is open, and the left and right oil tanks 1
3.14 is communicated. Further, a centrifugal pump 15 for supplying working fluid is attached to the lower part of the bearing body 7 from below. The centrifugal pump 15 is inserted through an insertion port 1a formed at the bottom of the main body casing 1 below the oil tank 14 and attached with a tightening bolt 41, and is integrated with the input shaft 3 and impeller 5. The sleeve 6 is rotated by a timing gear 16 attached to the sleeve 6, which rotates through an intermediate gear 17. Reference numeral 18 denotes a bearing bushing, which rotatably supports the intermediate gear 17 and is fitted into the bearing body 7.

-5=! #2 As is clear from Figure 2, centrifugal pump 15
Discharge 1-l ] 5 The piping 19 oriented approximately perpendicular to 1 is removed in advance. The upper end of the flow control device ij/211 is inserted into the mounting opening 20a' of the inflow chamber 20a of the flow rate adjustment device ij/211.

42 is an 0-ring. The flow rate adjustment device 20 is provided with a flow rate adjustment valve (not shown), and is adapted to supply the working fluid discharged from the centrifugal pump 15 into the impeller 5 while adjusting the flow rate thereof.
・ 22 is a Wesco pump for detecting the rotational speed of the output shaft 9 described in 1), and its discharge pressure is introduced into the flow rate adjustment device 20 to control the flow rate adjustment valve described in 1). .

Reference numeral 28 denotes a pressure detection device that detects the pressure of fluid discharged from an appropriate driven machine (not shown) such as a pump or blower driven by the output shaft 9, and detects the pressure of the fluid discharged from a suitable driven machine (not shown) such as a pump or a blower driven by the output shaft 9, and detects the pressure of fluid discharged from a suitable driven machine (not shown) such as a pump or a blower driven by the output shaft 9. 1. A cooling pipe 4 is provided in the oil tank 13 at the bottom of the main body casing 1 to control the flow rate adjustment valve of the flow rate adjustment device 20.
0 is placed.

Next, the operation of the above embodiment will be explained.

The input shaft 3 is connected to the input shaft 3 by an appropriate prime mover (not shown) such as an electric motor.
is rotated to rotate the impeller 5, and the centrifugal pump 15 is operated via the intermediate gear 17 by the timing gear 16 which rotates integrally with the impeller 5. When the centrifugal pump 15 starts to rotate, the working fluid discharged thereby flows through the pipe 19 and flows into the amount adjusting device 20. Since the flow control valve is open at the start of operation, the working fluid that has entered the flow control device 20 flows into the impeller 5. The working fluid that has entered the impeller 5 is
The inner runner 12 is rotated, and the output shaft 9 integrated therewith is rotated.

When the discharge fluid pressure of the driven machine increases due to a change in the operating state of the entire system including the driven machine, the pressure detection device 28 is activated and pushes the rod 27 downward, causing the lever 26 to move downward to the left and the spool 21 is lowered to reduce the inflow of working fluid 11t into the impeller 5 by mh% as if throttling the flow rate control valve 1lAI, thereby reducing the rotational speed of the output shaft 9. ,: Wesco pump 22 due to
111 output pressure becomes low, and in order to quickly stabilize the rotational speed, the lever 26 is operated to return to almost horizontal position, and the spool 21 is lifted to lower the rotational speed of the output shaft 9 by 1-1 again. Returns the discharge fluid pressure to the set value.J: Yes.

In addition, in the embodiment described in -, the piping is integrated into the centrifugal pump in advance (preferably, and when the pump is assembled, the tip of the piping is fitted into the opening of the flow joint device). However, the present invention is not limited to this, and is not limited to 1. On the contrary, the piping is attached to the flow rate adjusting device in advance, and when the centrifugal pump is installed, the pump is attached (1-recorded in =111). The tip of the pipe may be fitted.

Since the present invention is configured in one piece as in the present invention 1 and 14, it is extremely easy to attach the supply pump to the main body casing.
．． Not only can you reliably get f・1, but also -
8 = There is an effect that the piping connecting the pump and the flow rate adjustment device can be reliably connected with one touch.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the variable speed fluid coupling of the present invention, and FIG. 2 is a cross-sectional view taken along line 1--1 in FIG. 1. 1...Body casing 1a...Insertion port 2...Bearing 3...Input shaft '4...7 lange 5...Impeller 6...Sleeve 7.
... Bearing body 8 ... Bearing 9 ... Output shaft 1
0.11... Bearing 12... Runner 13.14
... Oil tank 15 ... Centrifugal pump 15a ... Discharge port 16 ... Timing gear 17 ... Intermediate gear
18... Bearing bushing 19... Piping 2
0...Flow rate adjustment device 20a...Inflow chamber 208'
Mounting port 21...Spool 22...Wesco pump 26...Luv 27...Rod 28...Pressure detection device 40...Cooling pipe 9- 41...Tighten 1.1 bolt 42... 0-Ring Patent Applicant Ebara Corporation Attorney 1: Go Hatayama - Minoru 10-

Claims (1)

[Claims] 1. An input shaft and an output shaft are supported substantially horizontally in the main body casing, a runner is rotatably disposed within an impeller attached to the input shaft, and the runner is attached to the output shaft, By connecting a working fluid supply pump that is rotatably driven by a human-powered shaft to a flow rate adjustment device via piping, the working fluid is supplied into the impeller while adjusting the supply amount, thereby freeing the internal fluid of the impeller and runner. In a fluid coupling in which the rotational speed of the output shaft is controlled by adjusting the position of the surface from the axis center;
A variable speed fluid coupling characterized in that when the pump is assembled from the insertion port at the bottom of the main body casing, the tip of the piping is fitted into the mounting port of the flow rate adjustment device or the working fluid supply pump. . 1-