JPS5825408B2 - Power transmission device to the lifting wheels of a tree climbing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power transmission device for lifting wheels in a tree climbing machine on which a pruning chenosaw is mounted.

To raise and lower a tree climbing machine from a standing tree, multiple lifting wheels attached to the tree climbing machine body are press-fitted onto the surface of the tree, and engine torque is transmitted to each wheel to drive and rotate each wheel. It will be done in good time.

However, if the rotational speeds of the wheels are different, it becomes difficult or impossible for the tree climbing machine to move up and down the tree, so all the wheels must be rotated at the same speed.

Therefore, the present invention provides a power transmission device that drives and rotates all the lifting wheels at the same speed at all times.

Hereinafter, the present invention will be explained in detail along with the drawings.

FIG. 1 is a plan view of a tree climbing machine that is climbing or descending a tree t, and the tree climbing machine main body is constituted by a frame F surrounding the tree t, a floating gear 1, and the like.

There are three gears 21 and 22 on the inner peripheral surface of the floating gear 1.
．． 23 are in mesh with each other, and furthermore, wheel portions 3□, 32.33 having lifting wheels W are connected to each of the gears 21 to 23.

Note that the mechanisms around the wheel parts 31 to 33 will be described in detail later along with FIG. 3.

Reference numeral 4 denotes a rotating part, which consists of an engine E1 chain, a C1 dial part, etc. loaded on a chassis 5. Rotate the circumference clockwise (direction of arrow A),
At that time, pruning is performed using a Chenosaw C.

Thus, the torque of the engine E is transmitted to the chenosaw C through the chenno 6, and is also transmitted to the chenosaw C through the belt 7, the reducer R,
The signal is transmitted to the gear 9 and the forward/reverse switching gear 10 through the bevel gear 87 and the like.

This forward/reverse switching gear 10 is swingable, and as will be described in detail later, when the tree climbing machine ascends a tree t, it meshes with a forward rotation transmission gear (described later) and shifts the idler gear 1 When the tree climbing machine descends the tree, each wheel W is rotated in the forward direction through the gear, and when the tree climbing machine is moving down the tree, it is engaged with a reverse rotation transmission gear (described later) to rotate each wheel W in the reverse direction.

Note that opening/closing parts 1'y that can be opened and closed by hinges 11, 12 and stops 13, 14 are provided on a part of the floating gear 1 and the frame F, respectively, to set the tree climbing machine on the standing tree t. When cleaning or removing from a standing tree, close each opening/closing part 1/
, y are opened as shown by chain lines.

2 and 3 are respectively perspective views of the power transmission section, and FIG. 4 is a plan view of the vicinity of the dial section for setting the tree climbing height of the tree climbing machine. A fixed gear 15 with the same diameter as gear 1 is installed in parallel, and each gear is connected to gear G1.
and gear G2 are in mesh with each other.

Further, the gear G2 has a forward rotation transmission gear G3, and the gear G1
A chain wheel G and a reverse rotation transmission gear G4 are each coaxially attached to the chain wheel G and the reverse rotation transmission gear G4.

The forward/reverse switching gear 10 is located between the forward rotation transmission gear G3 and the reverse rotation transmission gear G4, meshes with the gear 9 attached to the shaft 16, and is pivotally connected to the mounting plate 17 attached to the shaft 16. has been done.

The distal end of the mounting plate 17 is resiliently supported by a spring S1, and a switching rod 18 is pivotally attached.

Further, an arm rod 1γ for locking the chain wheel G is protruded from the mounting plate 17.

A bevel gear 83 is attached coaxially with the gear 9,
The torque of the above engine E is the bevel gear 81*82t
The signal is transmitted to the bevel gear 83 via.

In addition, there is a hook portion 181 at the tip of the switching rod 18, and the switching rod 18 has a hook portion 181.
To raise the forward/reverse switching gear 10, pull it in the direction of arrow A against the spring S, engage the stop 19, and move the forward/reverse switching gear 10 to the gear G3.
(See the chain line).

As clearly shown in FIG. 4, the switching rod 18 extends to the side of the dial portion, and the approximately middle portion is elastically supported by a spring S2.
In addition, a hook portion 181 is formed at the tip to be engaged with the stopper 19 as described above.

Further, a protrusion 18□ that protrudes toward the dial portion is provided slightly near the tip.

The dial part is a scale plate 21 located above the model wheel 20.
, and a knob 22, and a scale plate 21 is marked with a numerical value indicating the tree climbing height of the tree climbing machine.

The mold wheel 20 is adapted to rotate together with the knob 22.

Further, a projection 20' is provided on the mold wheel 20, and as will be described later, as the tree climbing machine ascends the tree, the mold wheel 20 rotates clockwise in FIG. When drawn on the protrusion 182 of the switching rod 18, the tip hook portion 18 is designed to be detached from the stopper 19.

The reason why the scale plate 21 is drawn with chain lines is simply for convenience of drawing and has no meaning.

23 is a feed rod for rotating the model wheel 20 as the tree climber ascends the tree, and the approximately central portion is connected to the stop plate 24 by a shaft 25.
It is pivotally mounted at and supported by a spring S3.

Further, a pawl rod 26 is attached to the tip, and this pawl rod 26 is engaged with the mold wheel 20.

Therefore, a protrusion 27 is provided on the main body of the tree climbing machine,
Every time the rotating part 4 goes around the tree in the direction of arrow A along the fixed large gear 15, the rear end of the feed rod 23 hits the protrusion 27 and rotates slightly clockwise about the shaft 25. .

At this time, the mold wheel 20 is rotated clockwise by one pawl by the pawl rod 26.

FIG. 3 shows a power transmission section to the lifting wheels W, and a gear 2 meshes with the inner circumferential surface of the idler gear 1. As shown in FIG.

When the idle gear 1 rotates, the torque is applied to the gear 21, the bevel gear 84°86. Chain C1, C2, C
3 to each wheel W of the lifting wheel section 3□.

Therefore, when the idler gear 1 rotates in the direction of arrow a, each wheel W rotates forward and moves up the tree, and when it rotates in the direction of the arrow, each wheel W rotates in the opposite direction and moves down the tree. do.

In addition, as shown in FIG. 1, the inner circumferential surface of the floating gear 1 is
In addition to gear 21, gears 22 and 23 are also meshed, and gear 2
As in case 1, the rotation of each gear 2□, 23 is transmitted to the wheel W of each lifting wheel portion 32, 33.

Next, the operation will be explained according to the above embodiment.

First, each opening/closing part of frame F and idle gear 1? .

After opening 1' and passing the tree climbing machine body through the tree t, each opening/closing part y and 1' are closed and stopped with the stops 14 and 13, and the tree climbing machine is set on the tree t.

Next, the knob 2 is rotated clockwise in FIG. 4 to align its tip with the desired value on the scale plate 21.

(For example, if you want to use a tree climbing machine to raise a tree to 6m,
Match the number to 6.

). When the knob 22 is turned, the mold wheel 20 also rotates in the same direction, but the mold wheel 20 and the pawl rod 26 constitute a one-way clutch, so the pawl rod 26 rotates the mold wheel 20 counterclockwise. prevents rotation, but allows clockwise rotation.

Next, the switching rod 18 is pulled in the direction of arrow A against the spring S1 to lock the tip end hook portion 18t to the stopper 19.

Then, the forward/reverse switching gear 10 swings around the shaft 16 and meshes with the forward rotation transmission gear G3 (see chain line in figure C2).

At this time, the arm rod 1γ engages with the chain wheel G, and the gear G1 becomes unrotatable.

Next, when the engine E is started, the torque of the engine E is transmitted to the chain saw C through the chain saw 6, and the belt 7, reducer R, bevel gears 80, 8°, 83
．． The signal is transmitted to the forward/reverse switching gear 10 via the gear 9 .

Then, the gears G, G2 also rotate together with the positive rotation transmission gear 10, and the gear G2 rotates while rotating along the outer periphery of the fixed gear 15. As a result, the rotating part 4 also rotates along the outer periphery of the fixed gear 15.
, rotate around the tree t in the direction of arrow A.

Now, at this time, the gear G1 that meshes with the floating gear 1 also rotates around the tree t together with the rotating part 4, but as mentioned above, the rotation of the gear G is prevented by the arm rod 17'. Therefore, the gear G1 cannot rotate around the outer periphery of the idler gear 1.

Therefore, when the gear G1 rotates around the tree t, the idle gear 1 that meshes with it is pulled by the gear G1 and rotates around the tree t.
around it in the direction of arrow a (that is, in the same direction as arrow A).

When the floating gear 1 rotates in the direction of arrow a, the gears 21 to 23 meshing with the inner peripheral surface of the floating gear 1 also rotate,
As mentioned above, the rotation is performed by the bevel gear 84 e 85
It is transmitted to each wheel W via the t-chains C1 to C3.

The rotation of each wheel W at this time is a normal rotation, and therefore the tree climbing machine ascends along the tree t.

Literature, when the tree climbing machine ascends the tree t, the rotating part 4 rotates around the tree t as described above, and therefore, the branches protruding from the tree are cut by the chenosaw C. becomes.

Now, every time the rotating part 4 goes around the tree, the feed rod 2
The rear end of 3 hits a protrusion 27 protruding from the main body of the tree climbing machine, momentarily rotates clockwise, and the pawl rod 26 lifts the model car 20.
Rotate clockwise by one fingernail.

By the way, this type of tree climbing machine generally ascends the tree at a height slightly shorter than the length of the chamber of a chenosaw (usually about 200 iam) while going around the tree.

Therefore, the rotating part 4 of the Honki climbing machine goes around the circumference of the standing tree.
While the mold wheel 20 is rotated by one pawl by the pawl rod 26, it ascends the tree by about 200 mm.

Therefore, as mentioned above, in order to set the climbing height of the tree climbing machine to 6 m, when the tip of the knob 22 is set to the number 6 on the scale plate 21, since 6 m ÷ 200 mm = 30, the rotating part 4
When the mold wheel 20 has made 30 laps around the tree t and has been fed 30 pawls, the protrusion 20' of the mold wheel 20 touches the protrusion 182 of the switching rod 18.
At this time, the tip hook portion 181 is separated from the stopper 19.

Then, when the tip hook portion 18 is released from the stopper 19, the switching rod 18 is pulled by the spring S2 and moves in the direction of the arrow, and at the same time, the forward/reverse switching gear 10 is transferred to the forward rotation transmission gear G3.
It separates from the shaft 16, swings around the shaft 16, and meshes with the reverse rotation transmission gear G4.

At this time, the mounting plate 17 also swings, and the arm rod 11 is moved to the chain wheel G.
5, and the reverse rotation transmission gear G4 and gear G1 are allowed to rotate (see the dotted line in Figure 2).

Now, when the forward/reverse switching gear 10 meshes with the reverse rotation transmission gear G4 in this way, the torque of the engine E will be
Reverse rotation transmission gear G4. It will be transmitted to gear G1.

Then, due to the rotation of gear G1, idle gear 1
rotates in the direction indicated by the arrow, and the rotation is transmitted to each wheel W through gears 2, to 23, bevel gears 84e85+cheno C1 to C3, and the like.

In this case, each wheel W rotates in the opposite direction to the previous direction, so that the tree climbing machine descends the tree t.

As explained above, the device according to the present invention has at least three gears 2□ to 23 that transmit rotation to the lifting wheels W.
The rotation of the engine is meshed with the idler gear 1 that surrounds the tree, and the rotation of the engine is once transmitted to the other idler gear 1, and each gear 21 to 23 is rotated together by this idler gear 1, so that each gear 21 to The rotational speed of each wheel W driven by 23 is always the same speed, so the tree climbing machine can move up and down the tree without any trouble.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of a tree climbing machine, Figs. 2 and 3 are perspective views of the power transmission section, and Fig. 4 is a view of the vicinity of the dial section. FIG. 1... Idle gear, 21-23... Gear, 3□-33
...Wheel part, 4...Rotating part, 10...Forward/reverse switching gear, 15...Fixed gear, 20...Model car, G1-G4
...Gear, E...-Engineer 0...Chenosaw, D
...Dial part, W...Wheel.

Claims (1)

[Claims] 1. A tree climbing machine that performs pruning while rotating a rotating part 4 consisting of an engine E, a chenosaw, and a climbing height setting part along a fixed gear 15 that surrounds a standing tree. 15, an idler gear 1 is arranged in parallel, and the idler gear 1 and the fixed gear 15 are provided with gears G, , G, respectively.
, and both gears G1. A forward/reverse switching gear 10 through which the rotation of the engine E is transmitted is swingably interposed between a forward rotation transmission gear G2 and a reverse rotation transmission gear G4, which are respectively connected to G2, and the position of the forward/reverse switching gear 10 is changed. , the idle gear 1 is changed from the rotation transmission position to the forward rotation transmission gear G to the rotation transmission position to the reverse rotation transmission gear G4 by the rotation of the ratchet wheel 20 of the rise height setting section. A tree climbing machine configured to change the rotational direction of a tree, wherein at least three gears 2, .
23, and the rotation of the idle gear 1 is controlled by these gears 2.
1 to 23 to the lifting wheels W of the lifting wheel sections 31 to 38.