JPH02113189A - Position detector for apparatus and transmitter - Google Patents

Abstract

PURPOSE:To fit already installed apparatus as they are by pressing straddling portions to an operating arm disposed in the space between the straddling portions by the turning movement of a claw with the rotation of a handwheel, thereby selecting a function of a two-way transmitter. CONSTITUTION:The rotation of a handle 1 is converted into rectilinear motion in the axial direction of a sliding member 16 threaded on a shaft 15 by the rotation of a claw 6 connected to the handle, the engagement with a claw 8, the rotation of a rotating wheel 9, the engagement of the first gear 13 on a shaft of the rotating wheel with the second gear 14 on a shaft parallel to the shaft and the rotation of a screw shaft 15 extended on a gear shaft. Whereupon, the rectilinear motion of straddling portions 17, 18 of the sliding member 6 is a series of interlocking operation of pressing between one of the straddling members 17, 18 and an oscillation-type operating arm 10 of a transmitter 11, whereby the transmitter 11 is caused to selectively fulfill its function by the operating arm 10.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a device whose function is controlled by a movable element interlocked with the steering wheel by operating the steering wheel at any number of revolutions, rotation angle, or angle of rotation of the steering wheel. The present invention relates to a device for remotely monitoring and controlling the state of a steering wheel in a device, such as a general-purpose valve, configured to move a shaft connected to the steering wheel.

More specifically, using the rotational state of the steering wheel as a factor,
The present invention relates to a position transmitting mechanism that includes a position transmitting means for transmitting the open/closed position and status of a valve, and a monitoring device that receives transmitted information from the means.

[Prior art]

Conventionally, the method for installing this type of monitoring and control device, for example, to an existing general-purpose valve, is as shown in (a) Figure 8.
When the device is attached to the upper surface of the steering wheel 40,
This may interfere with handle operation, especially for large-diameter valves.
Since the amount of movement of the valve stem is inevitably large, the height of the device increases to accommodate this, making the installation unstable. It is also disadvantageous if there is a height restriction in the mounting area of the device. Further, in order to transmit its fully open and fully closed positions, a handle 40 is attached to the valve head 41 as shown.
The transmitter mounting member 43 is curved and welded upward, avoiding the diameter dimension of the transmitter mounting member 43, and transmitters 44 and 44 are disposed above and below the transmitter mounting member 43, and the contact member 45 provided on the upper part of the handle shaft and the operation of each transmitter are arranged. The limit position is transmitted in conjunction with the arm 46.

(b) When the collar part of the stem nut is used for the device ff tJ%, as shown in Fig. 9, the stem nut 47
A dividing plate 48 is extended outward from the dividing plate, and a transmitter 44 is attached to the dividing plate.
．． 44 are arranged with a desired vertical spacing, and a positioning dividing plate 48 is attached oppositely above the actuating arm 46 of the transmitter, and the contact between the flange and the actuating arm causes the rotation of the handle 40 and, therefore, the valve. There is a structure that monitors the opening and closing positions of the That is, the rotation of the flange portion of the stem is captured, a sleeve having a split screw and a plate (work) threadedly engaged with the sleeve are attached to this portion, and the transmitter is actuated by the movement of this plate.

[Problem to be solved by the invention]

However, in general, for example, in existing general-purpose valves,
There is no opening/closing position transmitter, and there is no mounting seat.Furthermore, due to the size of the bore, the design pressure, and the shape and dimensions of each manufacturer, it is difficult to operate a petroleum plant that handles flammable oil and gas. Inside the equipment, there are restrictions on the use of electricity or welding machines, and it is difficult to easily install a gas feeder (delta). There is no gap for the entire movement length of the valve stem, and it is impossible to install an open/close position transmitter using the linear movement of the valve stem in this area.
In (a), there are problems with handle operation, height restrictions, and the arrangement of multiple transmitters, and in (b), the length of the protruding flange is insufficient, the installation interval is too short, and the flange installation is unstable.

Due to restrictions on the number of internal threads provided on the flange, it is practically difficult to install a feeder f3 to an existing valve, and it is especially difficult to install a feeder F3 to an existing valve with such diverse shapes and dimensions and in a restricted work environment. It is desired to provide a transmitting mechanism that makes it easy to attach a transmitter to existing equipment.

The present invention was developed in view of the above-mentioned problems and to solve the above-mentioned problems, and an object of the present invention is to provide a device position detection/transmission device that can be attached to existing devices as they are. .

[Means and effects for solving the problems] In order to solve the above problems, the present invention provides a shaft feeding mechanism including a Nand having a female thread connected to a handle wheel and a shaft having a male thread meshing therewith. A split type mounting member is attached to one surface of the steering wheel at a predetermined position radially outward of the spoke portion of the car, and has a predetermined number of protruding claws A (workpieces); A mounting seat fixed to a stationary part, and a predetermined number of claws B (sensors) mounted on the mounting seat, facing the claws, and capable of engaging with the claws as the handle wheel rotates, are arranged radially outside of the mounting seat. a rotating ring protruding toward the mounting seat; a single, bidirectionally actuated transmitter mounted on the mounting seat and having a switch actuation arm swingably protruding; A sliding shaft operatively disposed between the two-way actuated transmitter and the two, and connected to the rotary wheel, the rotary motion of the rotary wheel being incorporated by a screw shaft or a combination of a gear and a screw shaft. a transmission mechanism that converts the protruding leg portion of the member (slider) into a linear motion, and the rotation of the mold A as the handle wheel rotates;
The function of the bidirectional transmitter is selected by pressing the actuating arm disposed within a gap between the spread leg portion and the internuclear leg portion.

In another aspect, a transmission mechanism that converts the rotary motion of a rotary wheel including the mold A and a rotary engagement lever C into linear interlocking of a sliding member includes mechanical sensing of the rotational direction of the handle wheel by the lever C. It has a clutch mechanism that returns the lever C to its original position (neutral position) when the engagement with the pawl A is released, and the conversion from the rotational motion to the linear motion is performed by a gear connected to the lever C and a screw shaft. , or further constituted by a combination of an increasing/decelerating gear and a screw shaft.

Since the device according to the present invention configured as described above has a split mounting base, the device can be attached while the device to be attached remains as it is, and the space around the device can be used effectively. size.

By arbitrarily selecting and determining combinations of one quantity, etc., it is possible to adapt to a wide range of applications.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1, 2 and 3 show respectively a cut-away elevation, a side view and a cut-away plan view of an embodiment of the device according to the invention. This device is installed at a predetermined position in the radial direction of a spoke part 2 of a handle wheel 1 of a target device, in this example a general-purpose valve, with a split-type mounting member and a ring 3 on one surface (lower surface) of the spoke part, and a ring 3 on the other surface (upper surface). ) Temporary split ring installation 4
It is removably attached with bolts 5.

As is clear from FIGS. 1 and 2, the mounting ring of , : has a predetermined number of pawls A in the radial direction of the steering wheel.
6 is fixedly installed.

A mounting seat 7 for supporting the components of the device is removably fixed to the stationary part of the valve body using any suitable coupling means.

First, on the mounting seat 7, there is provided a rotary ring 9 having a predetermined number of pawls B and 8 protruding outward in the radial direction at a position where it can rotationally engage with the mold 6, and an actuating arm lO that is swingable. A single, projecting, bidirectionally actuated transmitter 11 is disposed, and a transmission mechanism 12 is further disposed between the rotating wheel 9 and the transmitter 11 to operatively connect them.

This transmission mechanism 12 includes a gear 1 drivingly connected to a rotating wheel 9.
3, a gear 14 that meshes with the gear 14, and a screw shaft 15 extending from the shaft of the gear 14, and a sleeve-shaped sliding member (slider) 16 is screwed into the screw shaft in the axial direction. ing. The sliding member 16 is arranged with two downwardly extending legs 17, 18, as can be seen in the pupil view, in such a way that the actuating arm 10 of the transmitter is interposed in the spacing between these legs.

FIG. 5 shows FIG. 1 and I of a further embodiment of the device according to the invention.
This figure shows a rotating ring 21 equipped with levers C and 20 that rotatably engage with the mold 6, and an annular rotor 22 whose structure is shown in FIG. 7 on an extending shaft. The pawl 2 is provided through the ratchet 23 on the inside
A gear wheel 25, meshable with 4, is fitted concentrically and loosely, the gear shaft extending and connecting the threaded shaft 15 and the split leg part 17, 18 screwed thereto, as in the embodiment of FIG. It is interlocked with a sliding member 16 having a.

FIG. 6 shows a mechanism for returning the lever 2o to its original position when the engagement between the claws A, 6 and the levers C, 20 is released. They are connected by a V-shaped spring 26 and a spring retaining ring 28, which are fixed via .27.

To describe the operation of the embodiment shown in FIGS. 1 to 3 according to the present invention having the above structure, the rotation of the handle 1 is caused by the rotation of the pawl 6 connected thereto, the engagement with the pawl 8, and the rotating wheel. 9, the first @ wheel 13 on the rotating wheel shaft meshes with the second gear 14 on the shaft parallel to the shaft, the rotation of the screw shaft 15 extending on the gear shaft, and the screw engagement with the shaft 15. sliding member 16
, i.e. the split leg portion 1 of the sliding member 16
The transmitter 11 operates as shown in FIG. 4 by a series of interlocking operations including the linear movement of 7.18 and the pressing of any of the open leg portions 17.18 with the swinging actuating arm 10 of the transmitter 11. This function is selectively performed by the arm 10.

The operation of the clutch mechanism according to the second embodiment of the present invention will be described with reference to FIG. 7. When the pawl 6 moves to the X-Y position (
(handle wheel rotates clockwise when viewed from above), lever 20
rotates by an angle of θ, and as the pawl 6 continues to move, the engagement between the two is released and the lever 20 is returned to its original position by the spring 26 (see FIG. 6). In Figure 7,
When the lever 20 rotates through an angle of θ, the ratchet connected to the lever 23. A rotor 22 containing a spring 29 and a steel ball 30 also rotates at the same time. In this case, the steel ball 30 rides on the bank portion 31, and accordingly the ratchet lift 23 moves rightward in the figure, and the pawl 24 and the gear 25 mesh with each other, causing the gear 25 to rotate.

In addition, in order to adapt the device according to the present invention to the size and performance of various applicable devices, the number of pawls A on the handlebar and the pawls B for the sensor, the length of engagement between the pawls, and the lever can be adjusted accordingly. The rotation angle of C is 2. The reduction ratio of the gear, the lead of the screw shaft for driving the sliding member, the module and number of teeth of the gear, the length of the pawl B, the lever C, etc. can be adjusted as desired.

〔Effect of the invention〕

The device position detection/transmission device according to the present invention, which is configured and operates as described above, has the following effects.

1) In the embodiment shown in Figs. 1 to 4, (1) By making the mounting seat of the claw A (work) split, the mounting seat can be installed without removing the handlebar from the equipment. This makes it possible to install equipment even during operation.

(2) By changing the number of attachments to the pawl, the rotation speed of the rotary wheel with pawl B (sensor) that engages with it can be changed, and the amount of movement of the slider on the screw shaft that operates the feeder can be changed. It becomes easy to change.

(3) By changing the contact length of the pawl B that engages with the pawl A, the rotation angle of the rotating wheel having the pawl B can be changed.

(4) On the shaft that transmits the rotation of the rotary wheel having the pawl B, a gear connected to this shaft and a gear engaged with this gear (by changing the reduction ratio of the gear connected to the screw shaft that operates the three gears, It becomes easy to change the amount of movement of the slider on the screw shaft that activates the transmitter.

(5) By changing the screw lead of the screw shaft that activates the transmitter, the amount of movement of the slider can be changed.

(6) Providing a three-circle adjustment on the slider facilitates fine adjustment.

(7) By organically changing the combinations of (2) to (6) above, it becomes easy to deal with devices having various rotational speeds, rotation angles, or shaft movement amounts of steering wheels.

(8) When the target device is a valve, most ranges (bore diameter, nominal pressure manufacturer) can be covered by changing only (2), and as a result, unitization and standardization are possible.

■) In the embodiment shown in FIG. 5, (1) Claw A (
By making the mounting seat for the workpiece (workpiece) a split type, it is possible to install the mounting seat without removing the handlebar from the equipment, and the equipment can be attached even while driving.

(2) By changing the engagement length between the receiving lever C (sensor) and the claw (work), the rotation angle of the lever C can be changed, and the amount of movement of the slider on the screw shaft that activates the transmitter can be changed. It becomes easy to change.

(3) By providing a restoring spring on lever C, when lever C and pawl A disengage, lever C will return to its original position by the force of the spring and will engage with pawl C that arrives one after another. The rotation of the steering wheel can be transmitted to the clutch gear.

(4) The amount of rotational feed of the ratchet gear connected to lever C (the amount of rotational feed per contact between lever C and pawl A) and the amount of movement of the slider on the screw shaft that operates the transmitter are the rotation angle of lever C. , the contact length between claw A and lever C can be changed.

(5) The reception lever C can adjust the angle of rotation per time with the claw A by providing a mechanism that slips when a force exceeding a certain level is applied to the portion in contact with the claw A.

(6) By changing the module and number of teeth of the ratchet wheel, the amount of movement of the slider on the screw shaft that operates the transmitter can be changed.

(7) By changing the screw lead on the screw shaft that activates the transmitter, the amount of movement of the slider can be changed.

(8) Providing an adjustment screw on the slider facilitates fine adjustment.

(9) The amount of movement of the slider can be changed by inserting an increase/decrease gear between the ratent gear shaft and the screw shaft that operates the transmitter.

(lO) By organically combining the above (2) to (9), it becomes easy to deal with devices having various rotational speeds and rotation angles of steering wheels or axial movement amounts.

[Brief explanation of drawings]

1, 2 and 3 show a cut-away elevation, side view and cut-away plan view, respectively, of an embodiment of the device according to the invention, and FIG. 4 shows the spread legs of a sliding member according to the invention. 5 is a diagram similar to FIG. 1 showing a modified aspect of the device according to the present invention, FIG. 6 is a diagram of the lever return mechanism, and FIG. 7 is an explanatory diagram of the clutch mechanism. , 8 and 9 each illustrate a conventional device. Handle car split ring, bolt, mounting seat, rotating shaft transmitter 14, gear, sliding member, lever C, rotor, pawl, spring, spring stopper, steel ball 2, 4, ・6 ・ ・ 8 ・ ・ 10 ・ ・ 12, 1 15 ・ ・ 17, 1 21 ・ ・ 23 ・ ・ 25 ・ ・ 27 ・ ・ 29 ・ ・ 3 l ・ ・ Spoke part attachment plate claw A claw B Transmitter switch 2"・Transmission m structure screw shaft 8・・Spread leg part rotating shaft Ratchet gear spring receiver spring embankment part Fig. 2 Fig. Fig. Fig.

Claims (1)

[Scope of Claims] 1. In a shaft feeding mechanism comprising a nut having a female thread connected to the handle wheel and a shaft having a male thread meshing with the nut, the above-mentioned A split-type mounting member that is attached to one surface of a handlebar car and has a predetermined number of protruding claws A (workpieces); a mounting seat that is fixed to a stationary part of a device to be mounted; a rotary wheel which is mounted and has a predetermined number of pawls B (sensors) protruding outward in the radial direction that face the pawl A and can engage with the pawl B as the handle wheel rotates; and the mounting seat. A single unit, which is attached to the
a bidirectionally actuated transmitter; and a screw shaft or gear disposed on the mounting seat and between the rotary wheel and the bidirectionally actuated transmitter and operatively connected to the rotary wheel. The transmission mechanism includes a transmission mechanism that converts the rotational movement of the rotary ring into a linear movement of the protruding leg portion of a built-in sliding member (slider) by a combination of screw shafts, and the rotation of the pawl A as the handle wheel rotates. A device for detecting and transmitting a position of an apparatus, wherein the motion selects a function of the bidirectional transmitter by pressing the spread leg portion and the actuating arm disposed within a gap between the spread leg portions. 2. A transmission mechanism that converts the rotational motion of a rotating wheel equipped with a lever C that engages with the pawl A into a linear motion of a sliding member is configured to mechanically sense the rotating direction of the handle wheel by the lever C and engage with the pawl A. It has a clutch mechanism that returns the lever C to its original position (neutral position) when released, and the conversion from the rotational motion to the linear motion is performed by a gear and a screw shaft connected to the lever C, or by further increasing or decelerating the lever C. 2. The device position detection/transmission device according to claim 1, which is implemented by a combination of a gear and a screw shaft.