JPH01285590A - Carrying device - Google Patents

Abstract

PURPOSE:To improve carrying capacity by selectively operating a regulating means of drum rotation, a directly connecting means of drum, and a connecting means of winch drum provided on the carrier device side, and by moving the carrier device forward or backward and winding up or down of a winch device with a driving device provided on the ground. CONSTITUTION:A regulating means of drum rotation is constructed out of a first clutch 41, a second clutch 42, and a brake 44, a directly connecting means of drum is constructed out of a third clutch 43 and a reversing mechanism 40, and a connecting means of winch drum is constructed out of the first and second clutches 41, 42. And in a carrying device Z, running of a carrier device 4 and winding up and down of a winch device 50 are totally performed by running force (tensile force) of an endless wire rope 5, and each individual operation is performed by selectively operating of the above-stated four coupling elements, namely three clutches 41-43 and a brake 44. As it is unnecessary to mount a driving device 7 on the carrier device 4, increase of capacity of the driving device 7 does not mean immediately large sizing of the carrier device 4.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a conveyance device.

(Prior art) For example, at a lumber logging site, when transporting lumber cut high up in the mountain to a lumber collection site set at a low location, wire ropes are used between the logging site and the lumber collection site. In this method, a rope is stretched, and the lumber is suspended and transported to a lumber collection site by a carrier device that is suspended from the rope and can be driven by an endless wire rope.

However, in the past, the drive device for this endless wire spout and its operating device were installed either at the lumber collection site or at the cutting site, so if the carrier device was located on the side opposite to the operating device, it would be difficult to communicate with the operator. There was a problem in that the distance between the carrier device and the carrier device was wide, making it difficult to check the working status of the carrier device.

Against this background, recently, a drive device such as an engine and a winch device are installed on the carrier device side, and these operations can be operated by a worker on the ground using a remote control method using radio waves. something is being developed.

However, in such a carrier device in which the drive device is mounted on the carrier device, the weight of the carrier device as a whole increases due to the weight of the drive device and the increased weight of the carrier frame due to the mounting of the drive device. As a result, if the capacity of the drive device or the strength of the cable is held constant, the carrying capacity will decrease by the amount of weight increase, and in order to increase the carrying capacity, the capacity of the drive device must be increased. In this case, the weight of the carrier device increases accordingly, so that there is a problem that the conveyance capacity does not improve even though the capacity of the drive device increases, resulting in an increase in cost.

(Purpose of the Invention) The present invention is intended to solve the problems pointed out in the above-mentioned section of the prior art. The purpose of this invention is to easily improve the carrying capacity of a carrier device in which the carrier device is moved by running an endless wire rope, without increasing the size and weight of the carrier device.

(Means for Achieving the Object) As a means for achieving the above object, the present invention provides a main rope that is stretched between support members arranged at an appropriate distance, and a winch device is attached to the carrier frame by the main rope. A conveying device which movably suspends and supports a carrier device, and which extends an endless wire rope between each of the support members and the carrier device, and moves the carrier device by running the endless wire rope. The endless wire rope is made to travel by a drive device disposed on the ground side, and is wound around a first endless drum and a second endless drum provided on the carrier frame, while the carrier device is provided with: drum rotation regulating means for selectively regulating the rotation of the two endless drums around which the endless wire rope is wound; A drum direct connection means that allows the drums to rotate integrally; and under an operating state of the drum direct connection means, the two endless drums and the winch drum are selectively connected so that the winch drum is moved in the same direction as each of the endless drums. and a winch drum connecting means for selectively rotating in two opposite directions.

(Function) In the present invention, by the above means, (1) When the rotation of the two endless drums is selectively restricted by the drum rotation restriction means, the carrier frame is turned into an endless wire rope via the endless drum on the restriction side. (2) The two endless drums are directly connected so as to be rotatable in the same direction by the drum direct connection means, and the carrier frame is moved in the running direction as the endless wire rope runs. In this state, the endless wire ropes are wound around the two endless drums by making the winding directions of the endless drums opposite to each other. By making the winding directions in the same direction, the two endless drums are both idle as the endless wire rope runs, and the carrier frame is brought to a halt. (3) ) By operating the winch drum connecting means under the operating state of the drum direct connecting means, the winch drum can be rotated in the winding direction or the winding down direction under the tension of the endless wire rope.

(Effects of the Invention) Therefore, according to the conveyance device of the present invention, by selectively operating the drum rotation regulating means, the drum direct connection means, and the winch drum connection means provided on the carrier device side, the drive provided on the ground side Since the carrier device can be moved forward and backward and the winch device can be hoisted and lowered by the tension of the endless wire rope that is run by the device, there is no need to mount a drive device on the carrier device as in the conventional example mentioned above. Therefore, even if the capacity of the drive device is increased to improve the carrying capacity of the carrier apparatus, this will not lead to an increase in the size or weight of the carrier apparatus or increase in cost, and the carrying capacity of the carrier apparatus can be easily increased. It has the effect of

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 1 to 3.

(2) = First Embodiment FIG. 2 shows a conveying device Z according to a first embodiment of the present invention. This conveying device Z is used for conveying lumber or construction materials between two far-distant locations, and includes a first support member 1 located at a low position and a second support member 1 located at a high position. A main rope 3 is stretched between the strut member 2 and the main rope 3. A carrier device 4, which will be described in detail later, is attached to the main rope 3 so that it can travel via a pair of front and rear 7% sheaves 12, 12. Then, this carrier device 4
The endless wire rope 5 (described in detail later) is moved in the front-rear direction along with the running of an endless wire rope 5 (described in detail later) which is driven by a drive device 7, which will be described later, and which is fixedly arranged on the support column 1 side. The carrier device 4 also includes a winch device 50, which will be described later.
The winch device 50 is also hoisted and lowered by running the endless wire rope 5.

Next, the specific structure of the carrier device 4 and the method of winding the endless wire rope 5 around it will be described in detail with reference to FIG.

The carrier device 4 includes a pair of front and rear hanger sheaves 12.1.
The carrier frame 11 is suspended and supported by the main rope 3 via 2. A first endless drum shaft 31 and a second endless drum shaft 32 are rotatably supported at coaxial positions on both sides of the carrier frame 11, respectively.
32 each has an endless drum 19,20 attached thereto. Further, a winch drum shaft 52, which is integrated with the winch drum 51 of the winch device 50, is coaxially disposed at an intermediate portion of the pair of left and right endless drum shafts 31, 32. A first clutch 41 is provided between the first endless drum shaft 31 and the winch drum shaft 52 to connect and disconnect them, and a first clutch 41 is provided between the second endless drum shaft 32 and the winch drum shaft 52. A second clutch 42 that connects and disconnects the two is respectively attached.

Further, the first endless drum shaft 31 has a chain 36 connected to the first intermediate shaft 33 arranged in parallel on the side thereof.
are connected to each other so that they can rotate in the same direction. Further, the second endless drum shaft 32 is rotated in the opposite direction with respect to the third intermediate shaft 35 arranged in parallel to the side thereof via a reversing mechanism 40 consisting of a pair of mutually meshing gears 38 and 39. Connected for interlocking rotation. Further, the third intermediate shaft 35 is connected via a chain 37 to a second intermediate shaft 34 coaxially arranged with the first intermediate shaft 33 so as to be rotatable in the same direction. A third clutch 43 is provided between the second intermediate shaft 34 and the first intermediate shaft 33 to connect and disconnect them.

Furthermore, a brake 44 fixed to the carrier frame li is disposed outside the brake drum 53 provided at one end of the winch drum 5. This brake 44 holds the load of the suspended load 25 by gripping the brake drum 53 and regulating the rotation of the winch drum 51 when the brake 44 is ON, and at the same time holds the load of the suspended load 25 when the first clutch 41 is engaged. The rotation of the endless drum 19 on the carrier side is restricted, and the second clutch 42
When they are fastened, the rotation of the second carrier-side endless drum 20 is restricted.

The three clutches 41, 42, 43 and one brake 44 are all electromagnetically actuated, and are activated by remote control via radio from the ground. Further, this carrier frame 11 is equipped with electrical equipment such as a dynamo (not shown) which is driven by a battery and the tension of the endless wire rope 5 as a power source for these clutches and brakes.

The drive device 7 includes a power source 8 such as an engine or a motor, and a speed reduction device 9.

This speed reducer 9 includes a driving side endless drum 1.
5 is attached, and furthermore, this drive side endless drum 1
An endless wire row 15 is wound around the wire 5.

As shown in FIGS. 1 and 2, this endless wire rope 5 is wound around a sheave 17 provided on the second support member 2 side, and the endless wire rope 5 is Endless running is performed between this sheave 17 and the drive-side endless drum, l5.

This endless wire rope 5 has a double shape between the drive-side endless drum I5 and the sheave 17, and the -blade side is pulled out from the drive-side endless drum 15 and then connected to the first sheave. The other side is pulled out from the sheave 17 and then wound around the second carrier-side endless drum 20 from the upper surface side.

In this way, when the first endless wire rope 5 runs in the direction of arrow R, when the first and second carrier-side endless drums 19 and 20 are free with respect to the carrier frame 11, First,
The second carrier-side endless drums 19, 20 rotate in the direction of the arrow r or the direction of the arrow α as the endless wire rope 5 runs. ! Since the relative relationship between the endless wire rope 5 and the first and second carrier-side endless drums 19 and 20 is maintained when the endless wire rope 5 is fixed to the
As the first endless wire rope 5 travels, rope tension is applied to the carrier-side endless drums 19, 20 (that is, the carrier frame 11) in the direction of arrow R (reverse direction).

Therefore, the first carrier-side endless drum 19 is fixed, and the second carrier-side endless drum 20
In the free state, the carrier frame 11 moves in the backward direction as the endless wire rope 5 runs, and in the opposite case, the carrier frame 11
will move in the forward direction.

Next, the operation of this transport device Z will be explained. This transport device Z is configured to transport the carrier device 4 and winch device 5.
The hoisting and lowering of the wire are all carried out by the running force (tension) of the endless wire rope 5, and each individual operation is performed by the above-mentioned four fastening elements, that is, the three clutches 41.
．． This is done by selectively operating 42, 43 and brake 44. That is, in this example, the above 4
The operations of the two fastening elements are set according to each task as shown in Table 1 below.

The operation will be explained below for each task.

(During forward movement) During forward movement, the second clutch 42 and brake 44 are engaged, and the first clutch 41 and third clutch 43 are released. Therefore, the second carrier-side endless drum 20 is integrated with the carrier frame Il via the brake drum 53 of the winch device 50, and the carrier device 4 is moved in the forward direction as the endless wire lobes 5 travel. At this time, since the first carrier-side endless drum 19 is free with respect to the carrier frame 11, it is idly rotating in the direction of arrow r as the endless wire rope 5 runs.

(When traveling backward) When traveling backward, the first clutch 41 and brake 44 are engaged, and the second clutch 42 and third clutch 43 are released. Therefore, in this state, the first carrier-side endless drum 19 is integrated with the carrier frame 11,
The carrier device 4 is moved in the backward direction as the endless wire rope 5 runs. In this case, the second carrier-side endless drum 20 is idly rotating as the endless wire rope 5 runs.

(Stopping) When stopping, the third clutch 43 and brake 44 are engaged. Therefore, in this state, first, the third clutch 4
3, the first carrier side endless drum 19
and the second carrier-side endless drum 20 are each integrally connected to the carrier frame 11 in a state of being free and rotating in opposite directions. Therefore, as the endless wire rope runs, the first carrier-side endless drum 19 only rotates in the direction of arrow R, and the second carrier-side endless drum 20 only rotates in the direction of arrow Q. No lobe tension acts on either the forward direction or the backward direction, and the carrier device 4 is brought to a stopped state. Further, by tightening the brake 44, the winch device 50 holds the suspended load.

(Winch hoisting) When hoisting the suspended load 25 using the winch device 50,
The second clutch 42 and the third clutch 43 are engaged.

In this state, the third clutch 43 is first engaged and the first clutch 43 is engaged.
The carrier-side endless drum 19 and the second carrier-side endless drum 20 are integrated in a reverse rotation state, and a stopped state of the carrier frame 11 is realized. Further, by engaging the second clutch 42 here, the second carrier-side endless drum 20 and the winch drum 51 of the winch device 50 are integrated in the same rotation direction, and the winch drum 51 is connected to the endless wire rope. 5 rotates in the winding direction (direction of arrow n) in response to the rotational force of the second carrier-side endless drum 20 as the drum 5 travels, and performs a predetermined winding action.

(Winch lowering) In this case, the first clutch 41 and the third clutch 43 are engaged, contrary to the case of the above-mentioned winding. Therefore,
When the third clutch 43 is engaged, the carrier frame 11
At the same time, the first clutch 41 is brought into a stopped state.
Due to the conclusion of the The carrier-side endless drum 19 and the winch drum 51 are integrated, and the winch drum 5I rotates in the lowering direction (direction of the arrow ``arrow'') as the endless wire rope 5 travels to perform a predetermined lowering action.

Note that in this first embodiment, the first clutch 41
The second clutch 42 and the brake 44 constitute the drum rotation regulating means in the claims, the third clutch 43 and the reversing mechanism 40 constitute the drum direct coupling means in the claims, and The first and second clutches 41
．． 42, the winch drum connection means in the claims is constructed.

Further, the brake 44 is connected to the winch device 50 as described above.
It performs a load holding function and a fixing function to fix the first carrier-side endless drum 19 or the second carrier-side endless drum 20 to the carrier frame 11 in a non-rotatable manner. For example, when the first strut member and the second strut member 2 are arranged at approximately the same height, the force applied to the endless wire rope is the weight of the carrier device 4, the main rope 3, and the hanger sheave 12. Although it is considered to be a relatively small force based on the frictional force between The carrier device 4 also tilts, and the tilting direction component of its own weight is added as a supporting force in the running direction of the carrier device 4, and the load torque of the brake due to the rope tension of the endless wire rope increases accordingly.

For this reason, for example, if the direction of the brake load torque due to the hanging load 25 is set to be the same as the direction of the brake load torque due to the rope tension of the endless wire rope, both torques are supported by the brake 44 at the same time. Therefore, the brake 44 is required to have a large braking capacity, leading to an increase in size and cost. Therefore, in this embodiment, the hanging load 25
The direction in which the carrier device 4 is arranged is set so that the direction of the load torque on the brake 44 due to the inclination of the main rope 3 and the direction of the load torque on the brake 44 due to the rope tension generated due to the inclination of the main rope 3 are opposite to each other. He is trying to set it corresponding to the direction of inclination of the cable 3. In this case, since the load torque due to the rope tension acts in a direction that reduces the load torque due to the suspended load, the brake 44
It becomes possible to make the brake capacity of the vehicle smaller.

(2): Second Embodiment FIG. 3 shows the main parts of a conveyance device Z according to a second embodiment of the present invention. This embodiment is basically the same as the first embodiment, and the winding of the endless wire rope 5 around each endless drum 19, 20 is slightly different from the direction and the torque transmission system based on this. Since the only difference is the arrangement, only these differences will be described in detail here, and other members will be designated with reference numerals corresponding to the respective members in FIG. 1, and their explanation will be omitted.

In this embodiment, the first and second endless drum shafts 31. 20 can be rotated in the same direction. And each of these endless drums 19
．． The endless wire ropes 5 are wound around the carrier frame 11 in opposite directions so as to realize a stopped state of the carrier frame 11.

In addition, the winch drum shaft 52 is connected to the first intermediate shaft 33.
and the second intermediate shaft 34 via a first clutch 41 and a second clutch 42, respectively.

The operation of each fastening element in this second embodiment is controlled according to Table 1 above, as in the first embodiment.

Next, to briefly describe the operation of the conveyance device Z, when moving forward, the second endless drum 20 is integrated with the carrier frame 11 via the brake 44 and the second clutch 42,
The carrier frame 2 is moved in the forward direction by the rope tension on the second endless drum 20 side.

When traveling backwards, on the contrary, the first endless drum 19 is integrated with the carrier frame 11 via the brake 44 and the first clutch 41, and the carrier frame 11 receives the rope tension on the first endless drum 19 side. It is forced to move backwards.

When stopped, the eleventh and second endless drums 9 and 20 are directly connected via the third clutch so as to be rotatable in the same direction, and the endless wire rope 5 is wound around each endless drum 19 and 20 in the same direction. Although the directions are assumed to be opposite, each endless drum 19, 20 moves in the same direction (
The carrier frame 11 rotates idly in the direction of arrow r), thereby realizing a stopped state of the carrier frame 11.

When the winch device 50 is hoisted, the rotation of the second endless drum 20 (rotation in the r direction) is caused by the reversing mechanism 40 and the second endless drum 20.
The reverse rotation state is transmitted to the winch drum 51 via the clutch 42, thereby realizing hoisting.

On the other hand, when lowering, the rotation of the first endless drum 19 is directly transmitted to the winch drum 51 as rotation in the r direction via the first clutch 41, thereby realizing lowering.

In the second embodiment, the first and second clutches 41 and 42 and the brake 44 serve as the drum rotation regulating means within the scope of the claims, while the third clutch 43 serves as the drum rotation regulating means within the scope of the claims. In addition, the first and second clutches 41, 42 and the reversing mechanism 40 constitute the winch drum connecting means in the claims, respectively.

[Brief explanation of the drawing]

FIG. 1 is a plan view of essential parts of a conveying device according to a first embodiment of the present invention, FIG. 2 is a side view showing an installed state of the conveying device shown in FIG. 1, and FIG. FIG. 2 is a plan view of main parts of a conveyance device according to a second embodiment. 1.2... Strut member 3... Main rope 4... Carrier device 5... Endless wire robe 7...
Drive device 8...Power source 9...Deceleration device! l...Carrier frame 15.19.20...Endless drum 31.32
... Endless drum shafts 33 to 35 ... Intermediate shaft 36J7 ... Chain 38, 39 ... Gear 40 ... Reversing mechanism 41 ... First clutch 42 ... ... Second clutch 43 ... Third clutch 44 ... Brake 50 ... Winch device 52 ... Winch drum shaft 53 ... Brake drum Figure 3

Claims (1)

[Claims] 1. Main ropes are stretched between the support members arranged at appropriate intervals, and the main ropes movably suspend and support the carrier device comprising the winch device on the carrier frame. A conveyance device in which an endless wire rope is stretched between carrier devices and the carrier device is moved by the running of the endless wire rope, the endless wire rope being caused to run by a drive device disposed on the ground side. In addition, while winding this on a first endless drum and a second endless drum provided on the carrier frame, the rotation of the two endless drums around which the endless wire rope is wound is selectively caused on the carrier device. a drum rotation regulating means for regulating the rotation of the drum; a drum direct coupling means for selectively directly coupling the two endless drums so that they can rotate integrally in the same direction or opposite directions; and an operating state of the drum direct coupling means. winch drum connecting means for selectively connecting the two endless drums and the winch drum at the bottom and selectively rotating the winch drum in two directions, ie, in the same direction and in the opposite direction to each of the endless drums; A conveying device characterized by comprising: