JP3409143B2 - Relay belt conveyor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay belt conveyer, and more particularly to a relay belt conveyer whose height can be easily adjusted when loading objects to be transferred onto a succeeding machine.

[0002]

2. Description of the Related Art Generally, a movable belt conveyor is often used in a crushed stone site. This movable belt conveyor can efficiently convey crushed stones and the like. FIG. 7 shows an example of a crawler traveling type movable belt conveyor. In this movable belt conveyor, a swivel base 709 is provided on a traveling carriage 705 equipped with a crawler 703 that travels on the ground via a swivel bearing 707 so as to be rotatable. This swivel unit 709 includes a swivel support base 7
11 and a driver's cab 715 are provided. Further, on the swivel support base 711, upper portions of the base portions of the left and right conveyors 717a and 717b, one of which is a load receiving portion and the other of which is a load discharging portion, are fixed by pins (not shown) so as to be capable of undulating. Cylinders (not shown) are respectively arranged between the lower portions of the bases of the left and right conveyors 717a and 717b and the lower portions of the swivel support base 711. By supplying hydraulic oil to the cylinders, respectively, Conveyor 717
Each of a and 717b can be moved up and down.

In such a movable belt conveyor, movement by a crawler 703 and conveyors 717a and 717b are performed.
The object to be conveyed can be supplied from a predetermined position to another position by turning, undulating (up and down movement), and the like.

[0004]

However, in the case where the height positions of the left and right conveyors 717a and 717b can be adjusted in this way, (1) the height of the conveyors 717a and 717b must be set unless the conveyor length is long. If the height is lower than the horizontal position, the back of the horse will be formed on the belt, which will hinder the conveyance of the transported object. (2) If the height of both conveyors 717a, 717b is higher than the horizontal position, a raised portion will be formed on the belt. However, there is a drawback in that the transported object is hindered from being transported.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks and to provide a relay belt conveyor capable of changing the height positions of a conveyed object receiving portion and a conveyed object discharging portion without hindering the conveyance of the conveyed object. .

[0006]

As shown in FIG. 1, a relay belt conveyor of the present invention is provided with a swivel portion 108 via a swivel bearing 107 on a traveling carriage 105 having a crawler 103 so that traveling and swiveling are possible. In a relay belt conveyor having a different structure, one end of a linear boom belt conveyor 127 is fixed to the swivel unit 108 by a telescopic mechanism 132 so as to be vertically movable , and the boom belt conveyor 1
The other end of 27 is fixed by the link mechanism 150 so as to be vertically movable , thereby achieving the above object. Also,
The swivel unit 108 comprises a swivel base 109 which is fixed on the swing bearing 107, the phosphorus on the swivel deck 109
And a swivel support stand 111 that supports the boom belt contour via a locking mechanism . Further, the expansion / contraction mechanism 132 includes one end of the swivel base 109 of the swivel unit 108.
One end of the hydraulic cylinder 125 is rotatably fixed to a fixed piece 121 provided at the center of the side with a pin 123, and the other end of the hydraulic cylinder 125 is attached to the boom belt conveyor 127.
Rotating the fixing piece 129 provided in the lower portion of the one end a pin 131
A possibly fixed structure is preferred. In addition, the link mechanism 150 of the previous term is mounted on the swivel base 109 of the swivel unit 108 of the previous term.
It is installed so that it is wider than the width of the conveyor belt.
The link 137 parallel to the fixed piece 133 with the pin 135
Rotatably fixed, and one end of the previous period each link 137 boom fixing piece 141 provided in the lower portion of one end of the belt conveyor 127 pin 139 and rotatably fixed hydraulic cylinder to the other end of the previous period link 137 It is preferable that one end of each of the hydraulic cylinders 143 is fixed by a pin 145, and the other end of each hydraulic cylinder 143 is fixed by a pin 149 to a supporting piece 147 provided on the swivel support frame 111 of the swivel unit 108 in the previous period. .

[0007]

Therefore, the relay belt conveyor configured as described above can travel because it has the crawler 103, and the revolving unit 108 is disposed on the traveling carriage 105 via the revolving bearing 107. It is possible to turn from that. In the relay belt conveyor, one end of the linear boom belt conveyor 127 can be moved up and down by the expansion mechanism 132, and the other end of the boom belt conveyor 127 can be moved up and down by the link mechanism 150 in the previous period.

[0008]

The present invention will be described below with reference to the illustrated embodiments. 2 to 6 show an embodiment of the present invention. Here, FIG. 2 is a side view showing an embodiment of the relay belt conveyor of the present invention with the prime mover room omitted, FIG. 3 is a plan view of the same embodiment, and FIG. 4 is a front view of the same embodiment. Further, FIG. 5 is an enlarged sectional view showing the swivel portion of the embodiment, and FIG. 6 is a sectional view of the swivel portion.

In these drawings, the relay belt conveyor 1 has a traveling carriage 5 in which a crawler 3 is rotatably provided, and a swivel base 9 is provided on the traveling carriage 5 via a swivel bearing 7. Has become. On the swivel base 9, a swivel support frame 11 is provided at the center thereof, and a motor room 13 and a driver's cab 15 are provided on both sides of the swivel support frame 11. The swivel unit 8 is composed of the swivel base 9 and the swivel support base 11. A storage unit 19 for storing a fuel tank and a battery is provided on the swivel base 9 in the previous period and at the rear of the cab 15 in the previous period. In addition, the traveling vehicle 5 has a traveling drive hydraulic motor 1
7 is provided, and the crawler 3 is rotated by the traveling drive hydraulic motor 17 so that the relay belt conveyor 1 can be moved. A ladder 16 is provided on one side of the swivel base 9 on the driver's cab 15 side.

Further, a fixing piece 21 is provided in the central portion on the side of one end 9a of the swivel base 9, and one end of a hydraulic cylinder 25 is rotatably fixed to this fixing piece 21 via a pin 23. There is. The other end of the hydraulic cylinder 25 is rotatably fixed by a pin 31 to a fixing piece 29 provided on the lower portion of the base 28 of the boom belt conveyor 27 on the discharged side of the conveyed object. The boom belt conveyor 27 is supported and fixed to the swivel base 9 by an expansion and contraction mechanism including these elements.
On the other hand, on the other end 9b side of the swivel base 9, the fixed piece 3 is opposed to the width slightly larger than the width of the boom belt conveyor 27 in the previous period.
3R and 33L are projected. These fixing pieces 33R,
33L has parallel links 37R and 37L on the pin 35.
It is rotatably fixed by R and 35L. Previous term link 3
One end of each of 7R and 37L is a fixed piece 41R, 4 provided on the lower portion of the base 28 of the boom belt conveyor 27 on the side of the conveyed object receiving side.
It is rotatably fixed to 1L via pins 39R and 39L. Further, the respective ends of the hydraulic cylinders 43R and 43L are rotatably fixed to the other ends of the links 37R and 37L by the pins 45R and 45L, respectively. The other end of each of the hydraulic cylinders 43R and 43L is provided with a support piece 47 provided on the transported object receiving portion side above the swivel support base 11.
It is rotatably fixed to R and 47L by pins 49R and 49L. The boom belt conveyor 27 is fixedly supported by the swivel support base 11 installed on the swivel base 9 by the link mechanism including these elements.

The boom belt conveyor 27 has a total length of, for example, about 11 [m], and is mainly composed of a linear base 28 and drive pulleys 51 provided at both ends of the base 28. , The idle pulley 53 and these pulleys 51, 53
It is composed of a belt 55 stretched between the two, and the belt 55 can convey an object to be conveyed. The previous period drive pulley 51 is installed on the side of the transported object discharging portion, and the previous period idle pulley 53 is provided on the side of the transported object receiving portion. A sprocket 57 is fixed to one of the rotating shafts of the drive pulley 51 of the previous term. A drive chain 63 is stretched between the sprocket 57 and a sprocket 61 provided on the output shaft of the speed reducer of the electric motor 59 with a speed reducer. When the electric motor 59 is rotated, the belt 55 moves. It will be. A hopper 65 and a skirt 67 are provided on the object receiving side of the boom belt conveyor 27. The belt 5
5 is rollers 69, 6 provided on the base 28 at predetermined intervals
9 ... Moves up. A belt slip detector 71 is also provided on the base 28.

Next, the turning mechanism will be described with reference to FIGS. 5 and 6. In the slewing bearing 7, as shown in FIG. 6, an inner ring 73a and an outer ring 73b are coaxially arranged with a bearing 73c interposed therebetween. The inner ring 73a is fixed to the traveling carriage 5, and the outer ring 7a
3b is fixed to the swivel base 9. A gear 75 is provided on the inner circumference of the inner ring 73a. This gear 75
5 and 6, the pinion gear 7 fixed to the output shaft of the reduction gear 77 fixed to the swivel base 9 is shown in FIG.
It is meshed with 9. A hydraulic motor 81 is arranged above the speed reducer 77, and an output shaft of the hydraulic motor 81 is connected to an input shaft of the speed reducer 77. The hydraulic motor 81 is rotated by hydraulic oil supplied via the hydraulic hoses 83a and 83b, and applies its rotational force to the input shaft of the speed reducer 77. The speed reducer 77 rotates the pinion gear 79 after reducing the input rotational force at a predetermined reduction ratio. Pinion gear 7
By the rotation of 9, the swivel base 9 is rotated with the traveling carriage 5 as a fixed portion.

The operation of the embodiment thus constructed will be described below.

Normally, when the relay belt conveyor 1 is moved, the boom belt conveyor 27 is set to the storage position (a state in which the object discharge portion side of the boom belt conveyor 27 is slightly above the swivel base 9). In such a state, first, the driver operates the traveling lever or the like in the cab 15 to drive the traveling drive hydraulic motor 17
Control the amount and direction of hydraulic oil supplied to the. This controls the rotational driving force of the crawler 3 to move the relay belt conveyor 1 to a predetermined position.

Next, the driver operates the lever for controlling the rotation direction of the swivel base 9 in the cab 15 to control the hydraulic oil supplied to the hydraulic motor 81, so that the hydraulic motor 81 is moved in a predetermined direction. Rotate. As a result, the rotational force from the hydraulic motor 81 is reduced by the speed reducer 77 to rotate the pinion gear 79. As a result, the swivel base 9 rotates with the traveling carriage 5 as the fixed side. The driver
When the boom belt conveyor 27 is oriented in a predetermined direction, the operation of the rotation direction lever of the swivel base 9 is stopped. Thereby, the boom belt conveyor 27 is set in the desired direction.

<Adjustment of Height of Transported Object Discharging Section Side> The operation when the transported object discharging section side of the boom belt conveyor 27 is set to a desired height from the storage position will be described. The driver operates the discharge side height position adjusting lever in the cab 15 or the like in a direction in which the hydraulic cylinder 25 extends. As a result, the hydraulic oil amount is supplied to the hydraulic cylinder 25 in the extending direction. Therefore, the hydraulic cylinder 25 extends. Then, the side of the boom belt conveyer 27 on which the conveyed object is discharged is fixed.
The pin 39R, 39L of the 1R, 41L is rotated about the central axis to move upward. When the conveyed object discharging portion of the boom belt conveyor 27 reaches a desired height, the discharging portion side height position adjusting lever is operated. As a result, the transported object discharging portion of the boom belt conveyor 27 is maintained at a desired height.

Next, the boom belt conveyor 2 is set at the above height.
A description will be given of a case where the conveyed object discharging portion side of the boom belt conveyor 27 is lowered when the conveyed object discharging portion side of 7 is set. In the driver's cab 15, etc., the driver
The discharge side height position adjusting lever is operated in the direction in which the hydraulic cylinder 25 retracts. This allows the hydraulic cylinder 2
5, the amount of moving oil in the degenerate direction is supplied. Therefore,
The hydraulic cylinder 25 retracts. Then, the transported object discharge part side of the boom belt conveyor 27 is fixed to the fixed pieces 41R, 4R.
The 1L pins 39R and 39L are pivoted downwards about the central axis. When the conveyed object discharging portion of the boom belt conveyor 27 reaches the desired lower position, the discharging portion side height position adjusting lever is operated. As a result, the transported object discharging portion of the boom belt conveyor 27 is maintained at a desired height.

<Adjustment of Height of Transferred Object Receiving Section Side> The operation when the transferred object receiving section side of the boom belt conveyor 27 is set to the desired height from the storage position will be described. In the driver's cab 15 or the like, the driver sets the receiving side height position adjusting lever to the hydraulic cylinder 43.
Operate in the direction in which R and 43L extend. As a result, the hydraulic oil amounts in the extension direction are supplied to the hydraulic cylinders 43R and 43L. Therefore, the hydraulic cylinders 43R, 43
L extends. Then, the other ends of the links 37R and 37L are pushed down. As a result, the links 37R, 37
L rotates about the pins 35R and 35L,
One end of each of the links 37R and 37L is turned upward. As a result, the object receiving portion side of the boom belt conveyor 27 rotates upward with the pin 31 of the fixed piece 29 as the central axis and rises. When the conveyed object receiving portion of the boom belt conveyor 27 reaches a desired height, the operation of the receiving side height position adjusting lever is stopped. As a result, the object receiving portion of the boom belt conveyor 27 is maintained at a desired height.

Next, the boom belt conveyor 2 is set to the above height.
A case will be described in which the conveyed object receiving side of the boom belt conveyor 27 is lowered when the conveyed object receiving side of 7 is set. In the driver's cab 15 or the like, the driver sets the receiving side height position adjusting lever to the hydraulic cylinders 43R, 43L.
Operate in the direction of degeneration. As a result, the hydraulic cylinders 43R and 43L are supplied with the amount of moving oil in the contracting direction. Therefore, each hydraulic cylinder 43R, 43L in the previous term
Degenerate. Then, the other ends of the links 37R and 37L ascend. As a result, the links 37R and 37L rotate about the pins 35R and 35L, and the links 3R and 37L rotate.
One end of each of 7R and 37L is rotated downward. As a result, the conveyed object receiving side of the boom belt conveyor 27 rotates downward about the pin 31 of the fixed piece 29 as a central axis and descends. When the conveyed object receiving portion of the boom belt conveyor 27 reaches a desired height, the operation of the receiving side height position adjusting lever is stopped. As a result, the boom belt conveyor 2
The transported object receiving unit 7 is maintained at a desired height position.

As described above, by extending the hydraulic cylinder 25, the object discharge side of the boom belt conveyor 27 is set at a desired height position, and by extending the hydraulic cylinders 43R, 43L, the boom belt conveyor is extended. After setting the conveyed object receiving side of 27 at the desired height position, the electric motor 59 with a reduction gear is rotationally driven. As a result, the rotational force of the electric motor 59 rotates the sprocket 61 on the output shaft of the speed reducer. The rotational force of this sprocket 61 is
The sprocket 57 is rotated via the drive chain 63. As a result, the drive pulley 51 rotates and the belt 55
Is moved in the direction of the arrow shown. Therefore, the hopper 6
The transported material supplied to the No. 5 is placed on the belt 55,
As the belt 55 moves, it is carried to the discharged side of the conveyed object.
As a result, the transported object is discharged from the transported object discharging unit to the subsequent equipment.

In this embodiment, as described above, the boom belt conveyor 2 is provided by extending the hydraulic cylinder 25.
Since the conveyed object discharge part side of 7 is set to a desired height position and the hydraulic cylinders 43R and 43L are extended, the conveyed object receiving side of the boom belt conveyor 27 can be set to a desired height position. Adjusting the height position as in the conventional example
Therefore, the belt 55 can be prevented from being bent and damage to the belt 55 can be prevented. In addition, since the boom belt conveyor 27 is linear, even if the belt 55 is short, the belt 55 will not be in a horseback or lifted state.

[0022]

As described above, according to the present invention, one end side of a linear boom belt conveyor is provided with a link mechanism,
Since the other end of the boom belt conveyor is supported by a swivel base by an expansion mechanism, the conveyed object discharge part and the conveyed object receiving part of the boom belt conveyor can be set to desired height positions, respectively, so that the belt is not damaged. there is a Ru effect that can be prevented.
In addition, it is possible to simultaneously set the conveyed object discharging portion and the conveyed object receiving portion of the boom belt conveyor at desired height positions .
Since it together, the adjustment of the height position of the front and rear connection devices
Can be quick and easy. Further, according to the present invention, since the boom belt conveyor may be linear, there is an effect that the belt can always be kept in an appropriate state and abnormal tension or slack of the belt does not occur. Well
Also, the linear boom belt conveyor has a link mechanism on one end side.
Is supported at 2 points and the other end has 1 point with a telescopic mechanism
It is supported by and is supported by 3 points.
The installation stability of the conveyor belt is good, and the connected equipment before and after
And can be aligned accurately.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the present invention.

FIG. 2 is a side view showing a partially omitted embodiment of the relay belt conveyor according to the present invention.

FIG. 3 is a plan view of the same embodiment.

FIG. 4 is a front view of the embodiment.

FIG. 5 is an explanatory view showing a plan view of a swivel unit used in the embodiment.

FIG. 6 is a cross-sectional view showing the turning portion.

FIG. 7 is a side view showing an example of a conventional relay belt conveyor.

[Explanation of symbols]

1 Relay belt conveyor 3 crawlers 5 traveling carriage 7 Slewing bearing 9 swivel base 11 Swivel support stand 17 Travel drive hydraulic motor 19 Storage 21 Fixed piece 23 pin 25 hydraulic cylinder 27 Boom belt conveyor 29 fixed piece 31 pin 33R fixed piece 33L fixed piece 35R pin 35L pin 37R link 37L link 39R pin 39L pin 41R fixed piece 41L fixed piece 43R hydraulic cylinder 43L hydraulic cylinder 45R pin 45L pin 47R support piece 47L support piece 49R pin 49L pin 103 crawler 105 traveling carriage 107 Slewing bearing 108 Revolving part 109 swivel base 111 swivel support stand 125 hydraulic cylinder 127 boom belt conveyor 132 Telescopic mechanism 137 links 143 hydraulic cylinder 150 link mechanism

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Flat 4-84217 (JP, U) Full-blown 64-14716 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65G 47/52-47/52 101 B65G 21/10-21/14

Claims (4)

(57) [Claims] 1. A relay belt conveyor having a structure in which a swivel portion is provided on a traveling carriage having a crawler via a swivel bearing to allow traveling and swiveling, and one end portion of a linear boom belt conveyor is attached to the swivel portion. relay belt conveyor vertically fixed with movable telescopic mechanism, and is characterized by being obtained by fixing the other end of the boom belt conveyor with vertically movable link mechanism. 2. The swivel unit includes a swivel base fixed on a swivel bearing, and the link mechanism interposed on the swivel base.
The relay belt conveyor according to claim 1, wherein the relay belt conveyor comprises a swing support stand for supporting the boom belt contour . 3. The expansion / contraction mechanism of a swivel base of the swivel unit.
One end of the hydraulic cylinder is rotatably fixed to a fixed piece provided at the center of one end side with a pin, and the other end of this hydraulic cylinder is rotated with a pin to a fixed piece provided under one end of the boom belt conveyor. The relay belt conveyor according to claim 1, wherein the relay belt conveyor is fixed as much as possible . 4. The swivel base of the swivel unit, wherein the link mechanism is a swivel base.
Facing the width wider than the width of the boom belt conveyor
A link parallel to the projecting fixing piece is fixed by a pin so as to be rotatable , and one end of each link is connected to a boom belt conveyor.
One end pin pivotally fixed with a fixing piece provided in the lower portion of the other end of each end of the hydraulic cylinder is pivotally pinned to each link, the other end of each of the hydraulic cylinders pivot pin supporting pieces provided on the swivel support cradle of the swivel part
The relay belt conveyor according to claim 1, wherein the relay belt conveyor is fixed as much as possible .