JPH044025Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a small device that opens and closes a gate installed in a water gate or weir installed in a river, etc. using a winding machine that is operated manually. Among the gate opening/closing drive devices used to open and close the gate using the power of the prime mover, the gate opening/closing drive device is detachably attached to the handle that operates the hoisting machine of a medium-sized gate. The present invention relates to an improvement in a mobile gate opening/closing drive device which is mounted on an aircraft body and can freely travel and move.

[Prior Art] As shown in Fig. 1, a winding machine A that opens and closes a gate installed on a water gate or a weir installed in a river, etc., is arranged above the gate 1, and is installed on a weir. A hollow abutment 30 formed in a cylindrical shape with a vertical axis is installed and fixed on the upper surface of the bridge body 2 that spans the bridge, and a spindle 31 with a screw provided on the outer circumferential surface is installed in the inner cavity of the abutment 30. is arranged such that it can be raised and lowered freely with its axial direction being vertical, and a lower end portion 31a that hangs downward through a through hole 35 provided in the bridge body 2 is attached to the spindle 31.
is connected to the upper end of the gate 1, and the upper end side 31b of the spindle 31 is screwed into a female screw rotatably supported in the conductor casing 32 supported on the upper part of the support 30. is a handle shaft 12 that serves as a drive shaft that transmits power via the female screw and the speed reduction mechanism.
A handle 11 is attached to the outer end of the handle shaft 12, and by manually rotating the handle 11 in forward and reverse directions, the female thread is rotated, and by raising and lowering the spindle 31, the gate 1 is opened and closed. That's what I do.

For this reason, opening and closing the gate 1 requires repeated rotations of the handle 11, which requires a considerable amount of time and effort, and some gates require a considerable amount of effort.

For this reason, as described in Japanese Utility Model Application Publication No. 58-16219, a drive mechanism that is removably connected to the handle (or handle shaft) of the winding machine and a drive mechanism that operates the machine is attached to a portable machine base. A portable gate opening/closing drive device has been developed in which a motor is installed to rotate the handle or handle shaft of the hoist using the power of the motor.

[Problem that the invention aims to solve] However, the previous model required a power source to drive the motor attached to the portable machine base, and a commercial power source was not available near the gate hoist. Therefore, this portable gate opening/closing drive device must also be equipped with a portable power generation device that combines an engine and a dynamo, and when opening and closing the designated water gates. However, there is a problem in that the portable gate opening/closing drive device and the portable power generation device must be transported together, making the transportation work until the water gate is opened and closed complicated.

In addition, the height position of the handle or handle shaft of the hoisting machine that opens and closes the water gate is often different for each water gate, so the portable gate opening/closing drive device is installed near the hoisting machine of the water gate. Even after the gate has been transported, the support legs of the machine base must be extended and contracted to adjust the height before it can be assembled and set on the handle or handle shaft of the hoisting machine of the gate. However, there is a troublesome problem.

Additionally, from this fact, if an attempt is made to drive the handle or handle shaft of the hoist using an engine that does not require a power source, the drive mechanism, which is mounted together with the engine on a portable machine base, must be mounted on the handle or handle shaft. In order to rotate forward and reverse at a predetermined speed, it is necessary to configure it as a transmission mechanism that includes a deceleration mechanism, a forward/reverse rotation switching mechanism, and a clutch mechanism that turns on and off power transmission. As a result, another problem arises, which makes manufacturing complicated and increases costs.

The present invention was made in order to solve these problems that occur with conventional means, and the winding machine that opens and closes the water gate is driven by an engine instead of a motor, and
The drive mechanism driven by the engine is configured to include a speed reduction mechanism, a forward/reverse rotation switching mechanism, and a clutch mechanism, and is a new type that can be easily transported and adjusted in height, and can be manufactured at low cost. The purpose is to provide a mobile gate opening/closing drive device.

[Means for Solving the Problems] The present invention was completed based on knowledge obtained through various studies to achieve the above-mentioned objectives. In other words, when the engine drives the handle or handle shaft of the gate hoist,
A small two-wheeled walk-behind tractor used as a small power tiller is used, the wheels are removed from the axle on the main body of the tractor, and the main body is mounted on a movable platform. Then, the axle from which the wheels have been removed is used as a power take-off shaft to transmit power to the handle or handle shaft of the winding machine that opens and closes the gate through an appropriate transmission mechanism such as a transmission chain, and then the main body is mounted. If you operate a certain engine and operate the transmission mechanism and clutch mechanism provided in the transmission section mounted on the main body in the same way as when controlling the operation of a two-wheeled small walk-behind tractor, you can operate the gate. The handle shaft of the hoist can be driven in the forward or reverse direction at a desired reduced speed. The supporting legs of this machine are formed into a pantograph shape in which a pair of link bars are connected cross-connected in an I thought that if I provided an anchor to fix it, I would be able to easily adjust the height by expanding and contracting the support legs assembled on the pantograph, so I did this.
Based on the results obtained that it is easy to move and adjust the height, and that it can be manufactured easily and at low cost by making and using the main body of an existing two-wheeled small walk-behind tractor. It is something.

Therefore, as a means to achieve the above-mentioned purpose, a small walk-behind tractor equipped with an engine, a speed reduction device, a direction change device, and a chain box with an axle that projects left and right at its lower end is developed. A pantograph-like link mechanism in which the main body is made into a motor unit by removing the wheels from its axle, the motor unit is supported on an assembly frame, and the assembly frame is extended and contracted up and down by threaded rods on both the left and right sides of the frame. is mounted on a machine base consisting of a pair of machines, and a wheel is provided at each lower end of each link bar of the machine base that constitutes the pair of pantograph-shaped link mechanisms, and The present invention proposes a mobile gate opening/closing drive device in which a power take-off shaft for transmitting power to a handle or a handle shaft of a gate hoist is attached to an axle from which the wheels of a prime mover unit are removed.

[Example] Next, embodiments will be described in detail with reference to the drawings.

2 to 4 show a first embodiment of the apparatus.

In the same figure, A is the winding machine of the water gate, 3
W is a prime mover unit consisting of the main body of a two-wheeled small walking tractor with the wheels removed from the axle.
indicates the machine base.

The hoist A rotates the handle 11,
This is a normal type of gate that opens and closes a flood gate. A set bolt 10a is attached to the handle 11 of the hoist A.
and a tightening nut 10b to connect the connecting flange 10.
is removably assembled.

The prime mover unit 3 consisting of the main body of a small walking type tractor includes a chain box 6 housing an engine E and a transmission mechanism for transmitting power through the output shaft of the engine E and a reduction gear c, and a shaft rack at the lower end of the chain box 6. As shown in Fig. 4, the axle 7 is suspended in the air and supported on an assembly frame 13, and the assembly frame 13 is attached to the machine base. By assembling it on the top surface of W, it is mounted on the machine base W.

The motor unit 3, which is the main body of this small walk-behind tractor, is connected to its chain box 6.
One end of a connecting shaft serving as a power take-off shaft 8 is connected to one axle 7 of the axles 7, 7 protruding left and right from
It is pivoted on 3.

The power take-off shaft 8 of the prime mover unit 3 is arranged and connected to the handle shaft 12 of the connecting flange 10 so as to be coaxial with it. Thereby, the handle shaft 12 is connected to the output shaft of the engine E via the transmission mechanism in the chain box 6, the direction change device 5, and the speed reduction device c consisting of a V-belt. At that time, the output shaft of engine E has the following:
By assembling the overload prevention device 4, the arrangement is such that even a device with a small torque can easily obtain slip torque.

The prime mover unit 3 consisting of the main body of a small walking type tractor includes the chain box 6 and the direction changing device 5.
(forward/reverse switching gear mechanism for forward/reverse movement) and a V-belt type reduction gear c A clutch mechanism 50 in which a tension pulley 51 is moved to engage/disengage by operating a lever provided on a grip portion of a control handle 40 provided in a prime mover unit 3.
(belt tension clutch) and the direction changing device 5, and by operating and controlling these, a desired state of neutral, normal rotation, or reverse rotation is selected.

In addition, idling and high-speed full load are performed by a choke lever provided on the handle 40.

The machine base W is a support lift that supports the prime mover unit 3 so as to be able to rise and fall freely, and
a mount a that supports the assembly frame 13 assembled with the mount frame 13;
The link mechanism b supports the pedestal a in a vertically movable manner. The pantographs are configured as pantographs that extend and contract in the directions, and are arranged in pairs on both sides of the pedestal a, facing each other in the left and right directions. In addition, this set of two link bars 2
Although the link mechanism b consisting of 0 and 20' is shown in one stage in the illustrated example, it is of course possible to connect and combine them in multiple stages. Each link mechanism b, b has the upper end of one link bar 20 rotatably connected to a fixed shaft 18 provided on the mount a, and the upper end of the other link bar 20' is connected to the mount. A is rotatably connected to a female threaded floating shaft 19 which is slidably provided through an elongated hole 17 in the front and rear (left and right in FIG. The inner end of the shaft is supported by the shaft in a posture along the direction, and the inner end thereof is screwed into the female thread 29 of the female threaded floating shaft 19. Thereby, by rotating the threaded rod 16 clockwise, the female threaded floating shaft 19 becomes a fixed shaft. 18 side, the link bars 20, 20' rise vertically to raise the pedestal a, and rotate to the left to lower the pedestal a (Fig. 11).
Figure 12).

Wheels 23,
23' are each pivotally supported, and the machine base W supports these wheels 23,
It is grounded and supported at four points by 23'.

22, 22' are axles of wheels 23, 23', which are suspended between a pair of link bars 20, 20, 20', 20' on the left and right. Further, 24 is the support shaft 22, 2
Bracket of anchor washer 25 loosely fitted to 2',
26 is an anchor inserted into the anchor washer 25, 1
4 is a handle for portability.

Further, a flexible flange type flexible coupling 9 may be disposed between the connection flange 10 and the power take-off shaft 8. As a result, even a slight bend in the shaft core acts as a cushion for power transmission, resulting in smooth power transmission.

In addition, the wheels 23 and 23' use elastic rollers made of rubber for the ground contact surface, and the difference in friction coefficient and the elasticity of the rubber buffer the slight vibrations of the aircraft under full load. Movement and damage caused by overall vibration can be eliminated.

Furthermore, the connection between the gantry a and the assembly frame 3 can be reassembled to change the protruding direction of the power take-off shaft 8.

Next, FIGS. 5 to 7 show a second embodiment of the apparatus.

In this embodiment, the prime mover unit 3 consisting of the main body of a small walk-behind tractor and the machine base W that supports it on a pedestal a are the same as those in the first embodiment described above, but the power take-off shaft 8 is hoisted. In conducting the connection to the handle shaft 12 of the machine A, a chain 37 is used to conduct the connection, instead of using the connection type as in the first embodiment.

That is, a sprocket foil 36 is attached to the tip of the power take-off shaft 8, a new sprocket attachment 38 is provided on the handle shaft 12 of the hoisting machine A, and a chain 37 is passed around these to connect them. It has been conducted.

In this embodiment, the chain 37 must be tensioned, but the axially movable bracket 24, which is loosely fitted to the moving support shafts 22, 22',
An anchor washer 25 that is vertically adjustable and attached via a vertical elongated hole 25a and a set screw 25b;
It is possible to fix the body of the gate opening/closing portable drive device B to the floor surface of the slab with the anchor 26 fitted therein, and adjust the tension of the chain 37.

Next, FIGS. 8 to 10 show an embodiment in which the hoisting machines A are provided in two sets, and the hoisting machines A are provided with a double spindle and are interlocked and interlocked by a hoisting machine interlocking shaft 41.

This embodiment is the same as the second embodiment in that the winding machine A is driven by transmission from the power take-off shaft 8 to the chain 37, but a bearing is mounted on one of the left and right axles 7, 7. 8′ connects the base end side of the power take-off shaft 8 which is pivotally supported by the power take-off shaft 8.
Attach the sprocket foil 36 to the tip side of the sprocket and chain 3 installed on the hoist A side.
7, the split sprocket 28 and the split sprocket 27 set thereon are assembled on the winding machine interlocking shaft 41, the chain 37 is passed around the split sprocket 27 and the sprocket foil 36, and the split sprocket By tightening the bolts 42, the drive torque is obtained only by the tightening force of the split spring 28, without special processing such as parallel key grooves on the winding machine interlocking shaft 41. In this example as well, it is possible to adjust the lift center height and the tension of the chain by fixing the body of the gate opening/closing portable drive device B to the slab floor surface with the anchor 26.

This third embodiment device is of the type with a multiple spindle interlocking shaft, and is located near the hoisting machines A and A on the slab floor. This is convenient when there is no space to place the body of the portable gate opening/closing drive device B.

When the apparatus of each of the above embodiments is moved to a hoisting machine of a water gate far away, the assembly frame 13 to which the motor unit 3 is attached is disconnected from the mount a of the machine W, and In the first embodiment, the connecting flange 1
In the second embodiment, the sprocket foil 36, sprocket attachment 38, and chain 37 are separated, and in the third embodiment, the sprocket foil 36 and the split spring sprockets 27, 28, The chain 37 can be separated and transported lightweight.

In addition, if a set of sprocket foil 36, attachment 38 with sprocket, chain 37 and split sprocket 27 are provided, it is possible to control the gate when installing a single-acting, double-acting spindle gate, etc. or a water gate with a drive device plan. It is also convenient to use when you need to raise or lower it until electrical wiring is done. Additionally, one set of equipment can be moved to multiple gate installation locations. In addition, for a large number of hoisting machines installed on the same slab, the wheels 23 . Can be moved easily.

[Effects of the invention] As explained above, when the mobile gate opening/closing drive device according to the invention is assembled into a form using an engine as the prime mover, which does not require a power source, the main body of a small walk-behind tractor with wheels removed from the axle 7 is used as the prime mover unit. 3, by mounting this on the machine base W and attaching the power take-off shaft 8 to the axle 7 from which the wheels have been removed, which transmits the power to the handle 11 or handle shaft 12 of the hoisting machine A of the gate 1, The handle shaft 12 of the hoist A is decelerated and switched in the forward and reverse directions by the engine E, making use of the deceleration device c and the direction change device 5 provided in the main body of the small walk-behind tractor. Since it is driven, it can be assembled at a low cost by using the structure installed in the body of an off-the-shelf walking type small tractor. In order to align the height position of the power take-off shaft 8 with respect to the handle shaft 12 of the hoist A, the operation of expanding and contracting the pair of pantograph-shaped link mechanisms b, b provided on the machine base W is performed by the link mechanism b. , b link bar 2
Since this can be done by utilizing the running operation of the wheels 23 provided at the lower ends of each of the 0 and 20, this height adjustment becomes easy. Moreover, this link bar 20, 20,
Since it serves as a supporting leg that supports the machine base W and pivots the moving wheels 23, a reduction in cost can be achieved with a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a hoisting machine for opening and closing gates, Fig. 2 is a front view of the portable gate opening/closing drive device according to the present invention in a state where it is assembled to the hoisting machine, and Fig. 3 is the same as above. Plan view, Figure 4 is a side view of the same as above,
Fig. 5 is a front view of the device of the second embodiment assembled to a hoisting machine, Fig. 6 is a plan view of the same as above, Fig. 7 is a side view of the same as above, and Fig. 8 is a hoisting device of the third embodiment. A front view of the assembled state in the machine, Fig. 9 is a top view of the same, Fig. 10 is a side view of the above, Fig. 11 is a front view of the support lift, Fig. 12 is a side view of the above, and Fig. 13 is an anchor washer. FIG. 14 is a partially cutaway front view of the same, FIG. 15 is a longitudinal side view of the pedestal, and FIG. 16 is an enlarged plan view of the same. Explanation of drawing symbols, A...Hoisting machine, B...Portable gate opening/closing drive device, a...Frame, b...Link mechanism, c...Reduction device, E...Engine, W...
Machine platform, 1... Gate, 2... Bridge body, 3... Prime mover unit, 4... Overload prevention device, 5... Direction change device, 6... Chain box, 7... Axle, 8
...Power take-off shaft, 8'...Bearing, 9...Flanged flexible coupling, 10...Connection flange, 10a...Set bolt, 10b...Tightening nut, 11...Handle, 12...Handle shaft , 13... Assembly frame, 14... Portable handle,
16...Threaded rod, 17...Elongated hole, 18...Fixed shaft, 19...Idle shaft, 20, 20'...Link bar, 21...Connection shaft, 22, 22'...Spin shaft, 2
3, 23'...Wheel, 24...Bracket, 25
...Anchor washer, 25a...Elongated hole, 25b...
Set screw, 26... Anchor, 27... Split sprocket, 28... Split spring, 29... Female thread, 30... Abutment, 31... Spindle, 31
a...lower end, 31b...upper end, 32...transmission housing, 35...through hole, 36...sprocket foil, 37...chain, 38...sprocket attachment, 40...control handle , 41... Interlocking shaft, 42... Split spring bolt, 50...
Tension clutch, 51...Tension pulley.

Claims (1)

[Scope of utility model registration request] The main body of a small walk-behind tractor is equipped with an engine E, a speed reduction device c, a direction change device 5, and a chain box 6 on which axles 7, 7 protruding left and right at the lower end are mounted. The motor unit 3 is removed and the motor unit 3 is supported on the assembly frame 13.
is mounted on a machine base W comprising a pair of pantograph-shaped link mechanisms b, b that extend and contract up and down by screw rods 16 on both left and right sides of a frame a, and the pair of pantograph-shaped link mechanisms of the machine base W are Wheels 23 are provided at the lower ends of the link bars 20, 20 constituting the link mechanisms b, b, respectively, and the wheels 23 of the gate 1 are attached to the axle 7 from which the wheels of the prime mover unit 3, which is the main body of the small walk-behind tractor, are removed. A mobile gate opening/closing drive device equipped with a power take-off shaft 8 that transmits power to a handle 11 or a handle shaft 12 of a hoist A.