JPS6154622B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for transporting loads using a trolley,
In particular, it relates to sorting and conveying technology using trolleys.

In a device that transports loads using a trolley that circulates between multiple stations that deliver and receive loads, if there is only one circulating path common to each station, it may be cheaper but When a bogie stops, the following bogies are unable to continue traveling to other stations ahead of it and stop. For this reason, there is a drawback that efficient transportation is not possible.

In order to overcome this drawback, a dedicated circulation route for each station may be provided, but this increases the number of circulation routes provided between each station, resulting in an increase in cost.

Furthermore, there are self-propelled types and chains-conveyor-based traction systems, but the self-propelled type requires a traveling drive machine for each cart, making it expensive if a large number of carts are used. Compared to this self-propelled type, the traction method using a chain conveyor is cheaper, but if a single chain conveyor is made long enough to circulate through each station, the driving resistance of the chain conveyor becomes extremely large, making it unsuitable for high-speed transportation. However, there is a drawback that the driving force is increased and the cost becomes high.

An object of the present invention is to provide an inexpensive and efficient load transporting device using a trolley.

An embodiment of the present invention applied to a railway bogie will be described below with reference to FIGS. 1 to 11.

As shown in FIG.
Main line 6 shared by 4 and 5 and each station 3,
A branch line exclusively for 4 and 5 is provided as a passage for the trolley 2. The branch line heading to each station 3, 4 is provided with storage parts 7, 8 in the middle near each station 3, 4, in which the trolley 2 is stopped for the transfer of the load 1 to and from the trolley 2. Along with this, the branch line is connected to this storage section 7,
An arrival line 9 and a vehicle sending line 10 are provided opposite the line 8. Among the branch lines, the arrival line 9 branches from the outbound line 11 of the main line 6 and reaches the storage sections 7 and 8, and the transport line 10 joins the return line 12 of the main line 6 from the storage sections 7 and 8. are doing.

The main line 6 includes an outbound line 11 and a return line 12 arranged in upper and lower two stages. The branch line heading toward the station 5 has a storage section 14 in the middle near the station 5, and an arrival line 13 and a storage section 14 that branch from the return line 12 and reach the storage section 14.
Transfer line 28 that merges with outbound line 11
It is equipped with Note that if there is enough space for the main line 6, the forward and return lines 11 and 12 may be arranged horizontally.

A railway 15 is laid along each line so that it becomes a passage for the bogie 2. This railway 15
As shown in FIGS. 5 and 6, the wheels 16 of the truck 2 roll, and the truck 1 travels along each line.

As shown in FIG. 3, the branch line heading to each station 3, 4 must branch from the lower going line 11 and join the upper returning line 12, so there is a difference in level between the upper and lower lines 11, 12. Trolley 2 must travel.

As shown in FIG. 3, the branch line heading to each station 3, 4 is arranged such that the arrival line 9 branched from the outgoing line 11 is installed in a downward slope to the horizontal storage areas 7, 8, and the trolley 2 is It is possible to economically travel to the storage sections 7 and 8 using the traveling inertia applied while the vehicle is traveling. The vehicle transport line 10 slopes upward from the storage parts 7 and 8 to above the return line 12, and then slopes downward to merge with the return line 12. A tow conveyor 17 is provided on the upwardly inclined line portion of the vehicle transport line 10 for hooking the carts 2 of the storage sections 7 and 8 and transporting them to the downwardly inclined line portion. This toe conveyor 17 causes the cart 2 to travel on the steps of the forward and return lines 11 and 12. Thereafter, the truck 2 economically moves down the downward slope of the transport line 10 due to the running inertia and gravity applied from the toe conveyor 17, and joins the return line 12.

As shown in FIG. 4, among the branch lines heading to the station 5, the arrival line 13 branched from the return line 12 slopes downward to reach the horizontal storage section 14, and from the storage section 14 the transport line 28 slopes upward. and merges into the outbound line 11. Between the middle of the arrival line 13 and the storage section 14, and between the storage section 14 and the outgoing line 11, a tow conveyor 17 for hooking and transporting the cart 2 and a transport conveyor 29 using an endless rope are provided, respectively. .

Bogie 2 running on railway 15 laid in each lie
are each line 11 of the main line 6 going and returning,
It is hooked onto a wire rope 18 stretched endlessly along line 12 and runs toward the branch line. Wire rope 18 is return line 1
2 and the going line 11, the rope is arranged in two stages, upper and lower, as shown in FIG. 2, with the upper part being the return rope part 19 and the lower part being the going rope part 20. This wire rope 1
8 is supported by a guide roller 21 in the middle. Furthermore, as shown in FIGS. 1 and 2, the left side of the wire rope 18 is supported by a rope reversal guide sheave 22 that guides the wire rope 18 from the lower stage to the upper stage. Furthermore, a counterweight 24 is attached to the rope reversal guide sheave 22 via a rope 23, and is pulled so as to move the rope reversal guide sheave 22 to the left.
The wire rope 18 is stretched at a constant tension by the rope tensioning device consisting of the rope 23 and the counterweight 24, and the impact when the trolley 2 is hooked on or separated from the wire rope 18 is alleviated.

The right side of the endless wire rope 18 is
As shown in FIGS. 1 and 2, it is wound around the drive sheave 26 via the idler sheave 25 in a cross-over manner. This driving sheave 26 is rotationally driven by a motor 27, so the wire rope 18 is wound around this driving sheave 26 as shown by the arrow in FIG.
The wound wire rope 18 can be let out.

The trolley 2 includes a rope clamp device 30 and a toe conveyor connecting pin 31, as shown in FIGS. 5 and 6. The toe conveyor connecting pin 31 is extended downward so as to be hooked on a claw of the toe conveyor 17 that is driven endlessly. The rope clamp device 30 has the configuration shown in FIGS. 7, 8, and 10, and can grip the wire rope 18 or the rope of the conveyor 29, and attaches the trolley 2 to the wire rope 18 or the rope of the conveyor 29.
It plays the role of hooking and releasing.

The structure of the rope clamp device 30 will be explained as follows. That is, a pair of arms 33 connected to the lower surface of the trolley 2 by pins 32 so as to be openable and closable in the direction of sandwiching the wire rope 18 are shaped like an arc so that the lower part of the arm 33 can sandwich as much of the wire rope 18 as possible. The nails have been processed into. Each arm 33 has a pin 3 in its middle part.
4 and each has a built-in rotatable trunnion 35. A horizontal internal thread is machined in the center of each trunnion 35. As shown in FIG. 10, a rotary rod 37 is screwed into the female thread of each trunnion 35 and has a male thread 36 machined to have a reverse thread from the center. Therefore, each arm 33 is threadedly connected by the reverse screw means of the rotating rod 37. Both ends of the rotating rod 37 are supported horizontally from the truck 2 via bearings 38 made of oil metal or the like. In particular, one end of the rotating rod 37 has a bearing 3.
8, and a lever 39 extending in the radial direction is fixed to this protruding end, as shown in FIG. Rollers 40 are attached to both ends of this lever 39, respectively. This lever 39 may be attached instead of a gear 41 as shown in FIG.

The lever 39 and the gear 41 are both means for applying rotational force to the rotary rod 37, and when the lever 39 and the gear 41 rotate, the rotary rod 37 integrated therewith also rotates. When the rotating rod 37 rotates,
Each arm 33 opens and closes by the screw feeding action of the reverse screw.

As shown in FIG. 9, the members that cause the lever 39 and the gear 41 to rotate are a rack 42 in the case of the gear 41, and as shown in FIG. 11, in the case of the lever 39, a first striker 43 and a second striker. 4
It is 4.

The rack 42 is supported from the passage side by a lifting device 46 that moves up and down by extending and contracting a hydraulic cylinder device 45. When the trolley 2 is running, when the tooth surface of the rack 42 faces downward and engages with the upper part of the gear 41, the rack 42 acts to rotate the gear 41 to the left, thereby closing each arm 33. let The rack 42 is moved to the gear 4 by the lifting device 46.
1, the rack 42 has no effect on the gear 41. If the rack 42 supported from the passage side by the lifting device 46 is engaged with the lower part of the gear 41, each arm 33 can be opened. By selecting the upper and lower tooth surfaces of the rack 42 in this way, the selected one is connected to the rope clamp actuating device 47.
The other end becomes the rope clamp release device 48.

In the case of the lever 39, as shown in FIG.
Second strikers 43 and 44 are employed to open and close each arm 33. The first striker 43 and the second striker 44 are arranged at an angle in a V-shape, and further, the roller 40 is rolled on the upper surface of the first striker 43, and then the roller 40 is rolled on the lower surface of the second striker 44. The first striker 43 is arranged lower than the second striker 44 by about the diameter of the roller 40. Therefore, the lever 39, which moves in the direction of the arrow shown in FIG. 11 as the trolley 2 travels, is rotated by the first striker 43 to a vertical position, and rotated by the second striker until it is tilted to the opposite side. be done. If the rotation range given to the lever 39 does not need to be small, only the first striker 43 may be used. The first and second strikers 43 and 44 are moved to the roller 40 by a lifting device.
If it is moved to a position where it does not hit the lever 39, it will not have any effect on the lever 39. If the first and second strikers 43 and 44 are arranged inverted downward as shown in FIG. 11 and guide the lower roller 40, the lever 39 can be given a rotation opposite to that described above.
In this way, each of the first and second strikers 4
By selecting the upper and lower positions of 3 and 44, a striker type rope clamp actuating device 49 or a rope clamp releasing device 50 is configured.

As shown in FIG. 1, the rope clamp release device 48 is provided at the branch point between the main line 6 and the branch line and at the exit side end of the transport conveyor 29. The rope clamp actuating device 47 is provided at the junction of the main line 6 and the branch line and at the entry side end of the transport conveyor 29.

A point switching device is provided on the railway 15 at the branch point, and the bogie 2 can be guided from the main line 6 to the branch line or in the opposite direction. By interlocking this point switching device with each rope clamp actuating device 47, efficient branching and merging operations can be achieved.

Stoppers 51 and 52 that can be raised and lowered are provided at the entrance side ends of each storage section 7 and 8 and at a part of the downward slope of the transport line 10, and the stoppers 51 and 52 are used to stop and start the trolley 2. You can

In the conveyance device for the trolley 2 configured as described above, from each station 3, 4 to the station 5
The operation of transporting a load 1 to a truck 2 using a trolley 2 will be explained.

When the drive sheave 26 is rotated by the motor 27, the wire rope 18 is driven in the direction of the arrow shown in FIG. Outbound rope part 2 of wire rope 18
Empty trolley 2 hooked to station 0 via rope clamp device 30 is pulled by wire rope 18 on railway 15 along bound line 11 and runs toward each station 3, 4. . When both storage units 7 and 8 are vacant, the point switching device at each branch point is connected to each station 3,
At the same time, the rope clamp release device 48 at the branch point is switched to the branch line side to Rack 4.
2 is in a position where it meshes with the lower part of the gear 41 using the lifting device 46. In this way, the empty truck 2 is separated from the going rope 20 by the rope clamp release device 48 and arrives at the storage section 8 through the arrival line 9. The next empty cart 2 also heads to the storage section 8. When there is an empty preceding cart 2 in the storage section 8, the following empty cart 2 is stopped on the arrival line 9 by a stopper 51. Once the desired number of empty carts 2 have been placed in the arrival line 9 connected to the storage 8, the point switching device that was switched to the station 4 side is switched to the outgoing line 11 side, and at the same time the rope at the branch point heading towards the station 4 is switched to the destination line 11 side. Return the rack 42 of the clamp release device 48 to its original position. In this way, the empty carts 2 on the outbound line 11 enter the arrival line 9 connected to the storage section 7 and reach the storage section 7 in the same manner as described above. The remaining empty cart 2 is stopped and placed on the arrival line 9 connected to the storage section 7 with a stopper 51.

When the cargo 1 is loaded onto the empty cart 2 in each of the storage sections 7 and 8, the connecting pin 31 of the cart 2 is hooked onto a claw of a toe conveyor 17 connected to the storage section 7 or 8. The cart 2 hooked to the toe conveyor 17 is loaded with the load 1 and sent to the downward slope of the transport line 10, and is stopped by a stopper 52 at the downward slope.
Then, after confirming that there will be no collision with other carts 2 on the return line 12 at the point of merging, the stopper 52 is
Remove. At the same time, the rope clamp actuator 47
The rack 42 is lowered by the lifting device 46 until it touches the gear 41. The cart 2 that has come off the stopper 52 is accelerated by gravity along the downward slope of the transport line 10 to the same speed as the return rope section 19 and enters the return line 12. After joining the return line 12, the rope clamp device 30 is closed by the rope clamp actuating device 47.
grips the return rope 19 with the arm 33 without impact. Therefore, the cart 2 loaded with the load 1 is pulled by the return row portion 19 and travels toward the station 5 side. A rope clamp actuating device 49 that provides a closing action to the rope clamp device 30 is retracted from the side of the station 3 that is about to pass through this merging point so as not to hit the trolley 2.

When there are no more empty carts 2 in the storage sections 7 and 8, the stopper 51 is removed and the next empty cart 2 stopped at the arrival line 9 is moved to the storage sections 7 and 8.
8, taking advantage of the fact that the trolley 2 travels due to the downward slope of the arrival line 9. After that,
By the same operation as described above, the cart 2 loaded with the load 1 is made to join the return line 12 and run toward the station 5 side.

The truck 2 loaded with the load 1 and joining the return line 12 is pulled by the return rope section 19 and heads toward the station 5. When the trolley 2 approaches the arrival line 13 branched to the station 5, the point switching device is switched to the arrival line 13 side. In this way, the cart 2 separates from the return rope 19 and enters the arrival line 13. Thereafter, this truck 2, loaded with the load 1, arrives at the entrance of the transport conveyor 29 shown in FIG. 4 under the influence of the downward slope of the arrival line 13. Here, the arm 33 of the truck 2 pinches the rope of the conveyor 29 by the action of the rope clamp actuating device 47, and the truck 2 is sent to the storage section 14 by the conveyor 29 at low speed. After that, the point switching device that affected this trolley 2 is returned to its original state,
A point switching device for another arrival line 13 is switched to another arrival line 13. In this way, the carts 2 that are moving towards the station 5 side can be sent to each empty storage section 14 one after another. This trolley 2 is separated from the transport conveyor 29 by the rail clamp release device 48 of the storage section 14 and stopped there.

The cart 2, which has become empty by unloading the load 1 on the cart 2 to the station 5 side in the storage section 14, is hooked to the toe conveyor 17 shown in FIG.
is returned to the forward line 11 side. The truck 2 joins the going line 11 by the feeding action of the toe conveyor 17. After merging, the arm 33 is operated by the rail clamp actuating device 47 provided along the going line 11 in FIG.
Insert 0. For this reason, the empty cart 2 is pulled by the going rope 20 from the station 5 to the other stations 3 and 4. In addition, each device 47, 48 for releasing or operating the rope clamp in Fig. 4
is a fixed device that does not include a lifting device 46. Therefore, raising and lowering the rack 42 is not required.

The cart 2, which is now empty after unloading the load 1 at the station 5, is sent to each of the stations 3 and 4 along the return line 11 as described above. When each station 3, 4 requires an empty trolley 2, the point switching device for the branch line toward that station is switched to the branch line side, and the rope clamp release device 4 for the branch line is switched to the branch line side.
8 into the active position. If you do this,
The empty trolley 2 can be received into the desired storage section 7 or 8. Then, cargo is handled and transported to the station 5 side in the same manner as described above.

In this way, if empty carts 2 are sent to each station 3, 4 according to the availability of each storage section 7, 8, cargo handling work can be performed at each station 3, 4 without stopping.

In this embodiment, the case is shown in which there are two stations 3 and 4 for loading the cargo 1 onto the cart 2, but a large number of stations may be provided between the stations 3 and 4. Further, as shown in FIG. 3, on the confluence side of the vehicle transport line 10 of each station 3, 4, there is a downward slope to accelerate the cart 2 to match the feeding speed of the wire rope 18 along the main line 6. If the feed speeds of the toe conveyor 17 and the wire rope 18 are approximately the same, the carts 2 may be directly merged from the toe conveyor 17 to the main line 6 side. Further, as a measure to prevent the rope clamp device 30 from slipping during operation, it is also conceivable to provide a shock absorption device at the attachment portion of the rope clamp device 30.

According to the present embodiment described above, the following advantages can be obtained.

1. It is economical because one main line 6 can be used in common to transport the carts 2 between the stations 3, 4, and 5.

2 The wire rope 18 has a light weight per unit length and is inexpensive, and has low driving resistance, so the capacity of the motor 27 can be reduced and the conveyance speed of the trolley 2 can be increased, making long-distance bulk transportation economical. can be achieved.

3. Compared to a self-propelled truck in which each truck 2 has a drive motor, only one motor 27 is required.
This motor 27 only needs to continue driving the wire rope 18 at a constant speed, and since the motor does not have to start and stop repeatedly, there is less burden on the motor 27.

4 Trolley wires for controlling and powering the bogie 2 are not required.

5 From the middle of main line 6 to each station 3 and 4
Since the number of trolleys can be freely sorted according to the amount of cargo handled at each station 3 and 4,
Reasonable transportation is possible.

6 Since the rope tensioning device tensions the wire rope 18 so that it does not loosen, the wire rope 1
The shock that occurs when the trolley 2 is connected to and released from the trolley 8 is loosened, the wire rope 18 does not swing, and the wire rope 18 is kept in a fixed position.
can be reliably grabbed from the trolley 2.

7 Since each arm 33 of the rope clamp device 30 is connected together with a reverse thread, the arm 3
3 can be opened and closed to a precise symmetrical position to securely sandwich the wire rope 18 at a fixed position.

8 Rope clamp device 30 of trolley 2 from the aisle side
Since there is no need to directly remotely control the trolley 2, the trolley 2 does not need to be moved by pulling the control trolley wire, and the structure is simple.

9 Each transport line 11 for going and returning the trolley 2,
By arranging the lines 12 one above the other, the area occupied by the main line 6 is reduced.

10 Utilizing the sloped line at the branch line section, the trolley 2 can be economically installed in the storage sections 7 and 8.
can be reached.

11 Even if the wire rope 18 is driven at high speed,
On the merging side of the branch line, the truck 2 is accelerated to about the feed speed of the wire rope 18, then merges into the main line 6 and is connected to the wire rope 18, so there are fewer connecting shocks.

12 Between both ends of the going passageway for the bogie and the return passageway for the bogie that is parallel to this, a branch passageway for the bogie to run from one of the going passageway and the return passageway to the other passageway shall be provided. Since the branch passageway is provided with a storage section for delivering and receiving loads, the trolley can short pass from the going passageway to the return passageway, eliminating the need to run through both the going passageway and the return passageway. , the travel distance is shortened, and the load can be transported quickly.

13 In the branch passage, a toe conveyor for driving the cart was installed between one passage and the storage section, and the space between the storage section and the other passage was provided on a downward slope in the running direction of the cart. is only on one side, which simplifies the configuration.

As described above, according to the present invention, it is possible to provide a sorting and conveying device for carts in which the traveling distance of the cart can be shortened and the structure of the branch passage can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the arrangement of each line of the trolley conveyance device according to the present invention, Fig. 2 is an elevational view showing how to tension the wire rope shown in Fig. 1, and Fig. 3 is the same as Fig. 1. 4 is an elevational layout of the branch line shown in FIG. 1, and FIG. 5 is a side view of the truck adopted in the embodiment of the present invention. Fig. 6 is a front view of the trolley shown in Fig. 5, Fig. 7 is an enlarged front view of the rope clamp device shown in Fig. 6, and Fig. 8 is a front view showing another example of the rope clamp device shown in Fig. 7. 9 is a side view of the rope clamp actuation and release device adopted in the embodiment of the present invention, FIG. 10 is a sectional view of the main part of the rope clamp device shown in FIG. 8, and FIG. 11 is a side view of the rope clamp device shown in FIG. 9. FIG. 3 is a side view showing another example of the rail clamp actuation and release device of FIG. 1... Cargo, 2... Cart, 3, 4, 5... Station, 6... Main line, 7, 8, 14... Storage department, 9, 13... Arrival line, 10, 28
...Transmission line, 11...Going line, 12...
... Return line, 15 ... Railway, 17 ... Toe conveyor, 18 ... Wire rope, 19 ... Return rope part, 20 ... Going rope part, 24
... Counterweight, 26 ... Drive sheave,
27... Motor, 30... Rope clamp device, 31... Connection pin, 32... Pin, 33...
Arm, 36... Reverse screw, 37... Rotating rod,
39... Lever, 40... Roller, 41... Gear, 42... Rack, 43... First striker, 44... Second striker, 46... Lifting device, 47... Rope clamp actuating device, 48... …
Rope clamp release device, 51, 52...Movable stopper.

Claims (1)

[Scope of Claims] 1. A going path for the cart and a return path for the cart are provided in parallel, and the going portion of the rope is placed along the going path and the return portion of the rope is placed along the returning path. are arranged in an endless manner, a driving device is provided to drive the rope, a rope clamping device is provided to clamp the rope to the trolley, and an outgoing path is provided between both ends of the outgoing path and the return path. , a plurality of branch passages are provided for the carriage to run from one passage to the other passage of the return passage, and the rope clamp device is caused to cause a clamp release action at the branch part from the one passage to the branch passage. A rope clamp release device is provided so as to be able to move forward and backward relative to the rope clamp device, and a rope clamp actuating device that causes the rope clamp device to perform a clamping action is provided at a confluence of the paths from the branch path to the other path to move forward and backward with respect to the rope clamp device. A path switching device is provided in the branching portion, a storage portion for transferring loads is provided in the middle of the branching path, and the branching path between the one path and the storage portion is set in the direction of travel of the trolley. 1. A sorting and conveying device for carts, characterized in that the toe conveyor for driving the cart is installed on a downward slope toward the storage section and the other path, and is provided in a branch path between the storage section and the other path.