JPH02147511A - Belt housing rack for inclined conveyor - Google Patents

Abstract

PURPOSE:To simplify construction and improve follow-up property for a conveyor in this housing rack for a steeply inclined shaft by installing upper guide rollers rigidly secured on the housing rack and lower guide rollers which are arranged staggeredly to them and fixed on a movable frame body, and winding the conveyor belt. CONSTITUTION:When extending an inner frame with the progress of excavation, a motor 44a rotates clockwise to raise a movable frame 38a in No.1 belt A (No.2 belt is omitted as the operation is the same). Then, lower guide rollers 39a-39e also go up to extend the belt A in proportion to the amount of slide of the inner frame. In retracting the inner frame, the motor 44a is reversed to lower the movable frame 38a, to have the lower guide rollers 39a-39e lowered proportionately and to house the belt in between the upper and lower guide rollers. The follow-up property to the conveyor can be improved by this constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a belt storage stand for an incremental conveyor, which is particularly suitable for steeply inclined shafts.

[Conventional technology 1] When excavating steeply inclined shafts in various civil engineering works,
There are many lifting platforms for carrying out waste, or earth and sand, from the inclined shaft.

For example, when excavating a diagonal shaft, usually a small-diameter waste removal chute is drilled in advance in the area where the diagonal shaft is to be excavated, leading to another working shaft.
The waste from the excavation of the inclined shaft is dropped into a waste removal chute, and the dropped waste is carried out from the working shaft (for example, Japanese Patent Publication No. 59-33752 by the present applicant).
(See monthly bulletin).

However, if the above-mentioned separate working hole is not excavated,
The waste must be transported upwards from the inclined shaft being excavated. In a slope with a gentle slope, this can be conveyed by a normal belt conveyor, but in a slope with a steep slope, the scraps slide down from the conveyor belt and cannot be conveyed. On the other hand, a packet conveyor that can transport the packets upward has a complicated structure and a large diameter, making it unsuitable for removing slippage from an inclined shaft.

In view of this, the present applicant proposed in Japanese Patent Laid-Open No. 63-161294 a sludge removing device that has a simple structure and is lightweight, which can easily transport sludge upward from a steeply sloping shaft.

The proposal will be explained with reference to FIGS. 10 and 11. The device comprises a belt storage stand 34 having a belt storage means, a frame 1 having one end supported by the belt storage stand 34 and an extension means extending into the inclined shaft 1'' at the other end, and the frame 1 and the belt storage stand 34. the lower first part of the pair stretched between
conveyor belt (hereinafter referred to as belt) A and the upper second
A main conveyor MC consisting of a belt B of a slide conveyor SC consisting of a slide frame 17 which is slidable in the longitudinal direction of the frame 1 by means of a slide frame 17; and a pair of lower third belt C and upper fourth belt D stretched over the slide frame 17; , a popper 33 which is fixedly installed on the slide frame 17 and which inserts the shear Z into the third belt C.
, a lower chute 14 provided near the lower end of the second belt B, and an upper chute 32 provided near the upper end of the third belt C. As the first to fourth belts A to D, known flat belts are used.

Frame 1 is connected to upper frame 2 on the side of belt storage stand 34,
It consists of a lower frame 3 which is connected to an upper frame 2 via a jack 4 serving as an extension means so as to be extendable in the longitudinal direction.

When excavating the inclined shaft H, the gantry t? The waste that has been drilled by the blasting machine and crushed by blasting is fed into the hopper 33 by a shirt loader (not shown). The thrown waste Z is conveyed by the third belt C, and then transferred to the third belt C and the fourth belt C.
(FIG. 12, FIG. 22), and is inserted into the return side of the second belt B at the upper chute 32. The inserted waste is the second belt B and the third belt
(Fig. 12, 22) and descends,
It is thrown into the slope part Δ1 of the first pel l-A through the lower chute 14. The thrown waste is caught between the first belt A and the second belt B (Fig. 12, 23), moves upward, and is dropped onto the floor F by the belt storage stand 34 (Fig. 12, 22). .

In this way, since the sludge Z is sandwiched between the opposing belts and conveyed, the sludge can be easily transported from the steeply inclined shaft to the ground surface.

Once the excavation is done, the electric winch 6 will be activated depending on the progress.
is actuated to feed out the wire loaf 22, and the slide frame 17 is slid downward a to carry out the removal of waste.

When the slide frame 17 slides a predetermined distance, the jack 4 is extended to extend the lower frame 3, and depending on the situation, the electric winch 6 is reversely operated to reel in the wire row 122, and the slide frame 17 is moved upward. Slide it. At this time, the belt storage stand 34
Then, the first belt A and the second belt B are extended by a length corresponding to the extension of the lower frame 3. That 1n1 jack 4
The fixation between the upper frame 2 and the upper frame 2 is released, the jack 4 is retracted, and an extension frame (not shown) is added to the gap formed between the upper frame 2 and the lower frame 3 to connect both frames 2.3. Then, the waste is carried out in the same manner as described above.

[Problem to be Solved by the Invention 1] This device itself is effective, but the conveyor section, that is, the incline conveyor, has
Since belts A to D are used, the structure is complicated. Therefore, 413a is desired in which the slide frame is omitted and two belts are used to remove the shear, but in this case, it is troublesome to suitably extend the belts in accordance with the progress of excavation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a belt storage stand for an incremental conveyor which has a simplified structure and has suitable followability for an incremental conveyor.

[Means for Solving the Problems] According to the present invention, an outer case, an inner frame that is partially overlapped and accommodated in a lower inner part of the outer case and that is slidable in the longitudinal direction by a slide means; inner frame,
a lower first conveyor that is stretched over the outer case and the belt storage stand, whose opposing sides move downward while being guided by return rollers, and whose opposing sides move upward while being held by carrier rollers and push rollers; bell] and an upper second conveyor belt, and a belt storage stand for an incremental conveyor that is provided with a popper that is fixed to the inner frame and that absorbs waste into the first conveyor belt, the belt storage stand. the first and second
A first and a second take-up device housing a belt conveyor of charcoal 6 are provided, each of which has a plurality of upper guide pulleys disposed in parallel, and a movable frame body that can freely move downward is connected to the upper guide pulley. On the other hand, lower guide pulleys arranged in a staggered manner and the adventure means of the movable frame are provided, and the conveyor bells 1 to 1 are wound around the upper guide pulley and the lower guide pulley in a staggered manner, respectively.

The first stage of elevating is made up of a plurality of upper sprockets suspended from the upper guide pulley side, a plurality of lower sprockets 1 fixed to the lower part of the bell 1 storage stand, and both ends of which are fixed to the movable frame, respectively. A chain wound around the first part and the lower sprocket, a sprocket fixed to the rotating shaft of the lower sprocket, and a chain wound around the first part and the lower sprocket, and a sprocket fixed to the rotating shaft of the lower sprocket.
It is preferable to include a chain wound around the rotating shaft, a sprocket fixed to one of the rotating shafts, and a drive mechanism that drives the sprocket in forward and reverse directions via the chain.

Further, it is preferable that each take-up device is provided with an idler boot provided with a balance weight for applying tension to the belt conveyor.

[Function] In the incline conveyor configured as described above, when scraps are thrown into the hopper, the scraps are conveyed by the first conveyor belt and then transferred to the first and second belts.
It is held in place by the carrier rollers, held down on both sides by the presser rollers, and then guided by the carrier rollers to move upward. Inside the outer case, both conveyor belts are guided by the carrier rows of the outer case, and are conveyed upward while being pressed on both sides by presser rollers.

As the excavation progresses, the motor is rotated to slide the inner frame to loosen it, and the drive motor is also rotated to raise the movable frame body, and both belts (1 conveyor) are stretched according to the slide position to loosen the inner frame. will be carried out.

[Example] The present invention will be described in detail below with reference to the drawings.

In FIG. 1, on the horizontal upper beam 35a of the frame 35 of the belt storage stand, which is indicated by the symbol E as a whole, six partial guide pulleys 36a to 36f and 36 are arranged symmetrically from the center.
g~36jl are parallel to each other, and the guide pulleys 36a~
36N and 36g to 36 are provided at equal intervals.

In FIG. 2, upper subblocks 1 to 37a and 37b are suspended approximately below the guide pulley 36a of the F section Song 35a of the mount 35 and below the guide pulley 36C136 (j), respectively. Beam 35b1
35b is provided with a horizontal movable frame 38a that is movable up and down, and the movable frame 38a has five lower guide pulleys 39.
a to 39e are stacked in a staggered manner with the upper guide pulley.

Further, on the F section beam 35c of the frame 35, lower sprockets 40a and 40 are provided opposite to the upper sprockets 37a and 37b.
0b, and these upper and lower sprockets each have a chain 4 connected to the movable frame 39a at both ends.
1a and 41b are wound. Therefore, when the lower sprocket 40F1.40b is rotated 8 clockwise (reversely), the movable frame 38a is lowered, and when it is rotated counterclockwise (normally), the movable frame 38a is raised upward.

In addition, the reference numeral 44 in the figure is a drive motor for the lower sprocket 40a, 42 is a vertically movable balance weight, 42a
is idle love.

In FIG. 3, the movable frame 38b has a lower guide roller 3.
9f to 39j are provided, and the others are constructed in the same manner as in FIG.

FIGS. 4 and 5 show four means for lowering the movable frame, taking the movable frame 38a as an example.

In the figure, a sprocket 40d140e is fixed to the rotating shaft 43a of the lower sprocket 40a, and a sprocket 40d140e is fixed to the rotating shaft -13b of the lower sprocket 40b.
0f is fixed. Further, a drive sprocket 40C is fixed to the drive motor 44a, and these sprockets 408 to 4Of are formed to have the same diameter.

And the chain 41 is on the sprocket 40C140d.
A chain 41d/fi is wound around the sprockets 40e and 40f, and the chain 41d is provided with a tension sprocket 40Q.

2 and 4 constitute a first take-up apparatus E1, and a configuration symmetrical to that of FIGS. 3 and 4 constitutes a second take-up apparatus E2.

Returning to FIG. 1, the first take-up device ff of the pedestal 35
On the left side of part 1E1 is upper frame 2 (11th
) are connected, a return row 548 is provided diagonally below the left of the guide pulley 36f, and the upper guide pulley 36a
A guide pulley 45a and a head pulley 46a driven by the motor M1 are provided diagonally above and to the right of the guide pulley 45a. Further, above these, a large number of garland-type carrier rows 549 are provided so as to be continuous from the arcuate portion to the horizontal tangential portion. Note that the carrier roller 4 in the arc portion
Although not shown, a fixed presser roller having the same shape as the presser roller 567 shown in FIG. 7 and described later is suspended above the presser roller 9 . Also, the road force of the upper guide pulleys 36c and 36d is applied to a head pulley 46 driven by the motor M2.
A b1 guide pulley 45b is provided, and above them are guide pulleys 47i and 47a147b.
However, guide pulleys 47h and 47o are provided above the kite pulleys 47a and 47b.

Similarly, guide pulleys 47c, 47f, and 45c are provided in the upper portion of the second take-up device E2.

47e, 45d and 47d are provided. and,
A return roller 50 is provided above the arcuate portion of the carrier roller 66 on the pedestal 35 side.

In FIG. 7, the incline conveyor is generally composed of an outer case indicated by the reference numeral 60 and an inner frame indicated by the reference numeral 70, and the inner frame 70 can slide inside the lower part of the outer case 60. .

Along the lower side of the inner frame 70 [1-Radiene 7
2 is stretched, and the sprockets 61a and 61C supported by the outer case 60 are meshed with the chain 72 from below and a sprocket 61b located between the two sprockets from above. The sprocket in the middle
-6l b is driven by a chain 63 to a motor 62 provided on the upper surface of the lower end of the outer case 60, and these members 72.61a, 61b, 61c, 6
2 and 63 constitute a sliding means.

In FIGS. 7 and 9, the outer case 60 is formed into a prismatic framework, and one end (the right end in the drawing) is connected to the upper frame 2 shown in FIG. 11 via a jack 4, An inner frame 70 is inserted from the other end.

This outer case 60 has a large number of return rollers 6 at the bottom.
4.64... has a large number of return rollers 65.
65... are provided, and inside there are a large number of guard land type carrier rollers 66, 66... and presser rollers 67.6.
7 is suspended.

J3, the presser roller 67 is suspended from the beam 60a, and, as shown by reference numeral 67A, is flipped up by the inner frame 70 entering the outer case 60 when the inner frame 70 contracts.

Note that the reference numeral 68 in the figure is a guide wheel that guides the inner frame 70.

In FIGS. 8 and 10, the inner frame 70 includes a slide portion 71 formed in a prismatic framework, and a hopper portion 72 of the framework connected to the tip of the slide portion 71 so as to be tilted upward. An idle wheel 74 is provided at the lower end of the slide portion 71 and moves over the bottom of the outer case 60, and a hopper 33 is provided at the upper portion of the hopper portion 72.

The sliding portion 71 has a large number of return rollers 75, 75... at the bottom and a large number of return rollers 76 at the top.
．． 76... is provided, and there are many keys inside. A rear roller 77.7V... is installed (), and a large number of presser rollers 7
8.78... is suspended. Note that the presser roller 7
8 is adapted to be flipped up by the second belt on the rear roller 66 of the outer case 60 when the inner frame 70 contracts, as shown by the reference numeral 78A.

The hopper part 72 has a guide roller 79.8 at the bottom.
0, the tail pulley 81 is on the upper side of these rollers, the carrier row 582, 82, the guide pulley 83 is on the upper side, the tail pulley 84, the guide pulley 85, the drive pulley 86
are provided for each.

The first conveyor belt 1-8 (hereinafter referred to as belt) descends from the return roller 48 of the first take-up device E1, passes through the first frame 2, and passes through the return roller 64 of the outer case 60 and the inner frame 70. It moves downward guided by the return roller 75, and is reversed upward by the tail pulley 81. And the carrier roller 77, key 1 of the outer case 60? Key 1 of rear roller 66 and belt storage stand E? It moves upward guided by rear rollers 49 and is reversed by head pulley 46a. Then, it enters the first take-up device E1 guided by the guide pulley 45a, is wound around the upper guide pulleys 368 to 36f, the small group guide pulleys 39a to 39e, and the idler pulley 42a in a staggered manner, and returns to the return roller 48. ing.

The second belt B descends from the return roller 50, passes through the first frame 2, and passes through the return roller 6 of the outer case 60.
5. Guided by the return roller 76 of the inner frame 70, it descends, is reversed by 180 degrees by the drive pulley 86 and guide pulley 85, and is reversed downward by the tail pulley 84, and the guide pulley 83, carrier roller 77, and carrier of the outer case It moves in ten rows guided by the roller 66 and the carrier roller 49 of the belt storage stand E. Then, the head pulley 46 b t' is reversed and separated from the first belt. Then guide pulleys 45b, 47a to 47
G, the second take-up device E is guided by 45G.
Enter 2. Therefore, the - part guide pulleys 36Q to 36e
The lower guide pulleys 39f to 39j and the idler pulley 42a are wound in a staggered manner, and the guide pulleys 47d and 45
d, return roller 50 guided by 470-47i
It is now back to .

During excavation, when waste is put into the hopper 33, the waste is transported by the first belt 8, and then, as shown in the left half of Fig. 10, the waste Z1 is transferred to the first belt A and the second belt B, and both sides are pressed down by presser rollers 78 and 78, and guided by carrier rollers 77 to move upward. When conveyed into the outer case 60, as shown in FIG. It is pressed down on both sides and ascends,
It is turned over by the drive pulley 46a of the belt storage table and dropped onto the floor F (FIG. 11, 24).

In this way, the first and second pulleys △ and B pinch the waste Z, and the presser rollers 78 and 67 press both sides to transport it, making it easy to transport it from a steeply inclined shaft to the ground surface. can.

When the excavation progresses, the motor 62 is rotated in the direction 51 in the figure, and the inner frame 70 is slid to adjust the payout length.
The movable frames 38a, 3 are rotated in the normal direction by rotating the driving Tanabata 44a, 44b.
8b is placed on its back and both belts A and B are extended according to the slide distance of the inner frame to carry out the waste. Then, when the inner frame 70 slides by the limit distance, the
is extended to extend the outer case 60, and in response to the extension, the t-case 62 is rotated in the opposite direction to retract the inner frame 70. After that, outer case 60 and Ji-X? luck 4
The jack 4 is retracted by releasing the fixation between the outer case 60 and the upper frame 2, and an extension frame (not shown) is added to the gap formed between the outer case 60 and the upper frame 2.
Connect with. Then, the waste is carried out in the same manner as described above.

[FE Bright Effect 1] Since the present invention is configured as described above, the belt can be stretched accurately and suitably using the upper W of the movable frame.

Furthermore, by increasing the number of upper and lower guide pulleys, it is possible to easily increase the belt alignment limit.

In addition, although the example described the case of excavation,
It is clear that the present invention can be implemented, for example, in carrying in and pouring concrete, and in carrying out earth and sand during construction of underground structures.

[Brief explanation of the drawing]

Fig. 1 is a side view of the upper part showing one embodiment of the present invention, Figs. 2 and 3 are side views showing the first and second take-up devices, respectively, and Figs. 4 and 5 are respectively the movable frame. Fig. 6 is a side view showing the schematic structure of the incline conveyor, Fig. 7 is a side view showing the outer case, and Fig. 8 is a side view showing the inner frame. , No. 9
Figures 1 and 10 are cross-sectional views of the outer case and the inner frame, respectively, when viewed from the outer case side in a direction perpendicular to the longitudinal direction of the inner frame.
Figures 1 and 12 show the conventional slippage 1! 12 is a perspective view showing an example of the arrangement, and a side view taken along the line I-1 in FIG. 11. Δ...First belt B...Second belt 3
3...Hopper 35...Belt storage stand 36a
~361... Upper guide pulleys 37a, 37b...
Upper block 1-38a, 38b---Movable frame 3
9a-39j...Lower guide roller 40a140
b...Lower sprocket 418-41d...Chain 44a, 44b...Drive motor 48.50
, 64.65.75.76...Return roller 4
9.66.77...Carrier roller 60...Outer case 67.78...Press roller 70...
Inner frame patent applicant Kajima Construction Co., Ltd. No. 1

Claims (1)

[Claims] an outer case, an inner frame that is partially overlapped with each other in the inner lower part of the outer case and is slidable in the longitudinal direction by a sliding means, and is stretched across the inner frame, the outer case, and the belt storage stand; A first conveyor belt on the lower side and a second conveyor belt on the upper side, opposite sides of which move downward guided by return rollers, and opposite sides of which move upward while being held by carrier rollers and push rollers.
A belt storage stand for an incline conveyor, which is provided with a conveyor belt, and a hopper fixedly attached to the inner frame for throwing waste into the first conveyor belt, wherein the belt storage stand is provided with the first and second belts. First and second take-up devices that accommodate the conveyor are provided, and each of the take-up devices has a plurality of upper guide pulleys arranged in parallel, and a movable frame body that can move up and down is arranged in a staggered manner with respect to the upper guide pulleys. A belt for an incremental conveyor belt, characterized in that a lower guide pulley disposed at a lower guide pulley and a means for raising and lowering the movable frame body are provided, and the conveyor belt is wound around the upper guide pulley and the lower guide pulley in a staggered manner, respectively. Storage stand.