AU2017432501B2 - Continuous belt changing device driven by hydraulic roller - Google Patents
Continuous belt changing device driven by hydraulic roller Download PDFInfo
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- AU2017432501B2 AU2017432501B2 AU2017432501A AU2017432501A AU2017432501B2 AU 2017432501 B2 AU2017432501 B2 AU 2017432501B2 AU 2017432501 A AU2017432501 A AU 2017432501A AU 2017432501 A AU2017432501 A AU 2017432501A AU 2017432501 B2 AU2017432501 B2 AU 2017432501B2
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- 230000007246 mechanism Effects 0.000 claims abstract description 110
- 230000009467 reduction Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000003245 coal Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Drives For Endless Conveyors (AREA)
Abstract
A continuous belt changing device driven by a hydraulic roller. The belt changing device comprises a belt removing mechanism for removing an old conveyor belt (7) and a belt supply mechanism for supplying a new conveyor belt (11). A tail end of the old conveyor belt (7) is connected to a start end of the new conveyor belt (11). The belt removing mechanism is provided with a roller group for moving the old conveyor belt (7). The roller group comprises two or more friction rollers (2-2, 2-3). The friction rollers (2-2, 2-3) in the roller group radially engage with each other so as to be linked, or engage with an intermediate member so as to be linked. At least one of the friction rollers (2-2, 2-3) in the roller group is provided with a driving component for rotating the friction rollers (2-2, 2-3).
Description
The present application is proposed based on Chinese Patent Application No.
201710860549.1 filed on September 21, 2017, and claims priority to this Chinese
Patent Application, the disclosure of which is hereby incorporated by reference in its
entirety.
The present invention relates to the technical field of maintenance of belt
conveyors and in particular to a continuous belt replacement device driven by a
hydraulic drum.
As an important device in coal production, a belt conveyor plays an irreplaceable
role in the coal production and is very important for the transportation of coal from
the coalface to the ground. The rubber belt is a carrier for bearing and conveying coal.
During the long-term use of the rubber belt, friction exists between the belt surface
and the material and also between the rubber belt and the drum, resulting in scratches
on the belt surface of the rubber belt or even corrosion and breakage of the steel wire
rope, and thus causing potential safety hazards for the operation of the rubber belt.
Therefore, in order to ensure the safe and stable operation of the rubber belt, it is
necessary to replace the rubber belt regularly. With the continuous increase in
transportation volume of coal, the length, volume and weight of the rubber belt will be
16593452_1 (GHMatters) P112895.AU increased correspondingly. Additionally, due to the complex surrounding conditions of the belt conveyor, the replacement of the rubber belt is very complicated and arduous. Particularly for a conveyor with a large dip angle and a long distance, it is more difficult to replace the belt, and it is likely to result in accidents such as belt slip and belt breakage. Moreover, since the borehole operation is forced to stop during the belt replacement, the time required to replace the belt will directly affect the production and economic efficiency of the coal mine. Therefore, shortening the time required to replace the belt is very important to improve the economic efficiency of the coal industry.
In view of the above problems, some solutions have been proposed in this
industry at present. For example, in Utility Model Patent No. CN203975734U entitled
"BELT REPLACEMENT DEVICE FOR BELT CONVEYOR", the belt replacement
device consists of a chassis, a winding drum mounted on the chassis and a driving
motor for driving the drum to rotate, wherein the driving motor drives the winding
drum to rotate through a planetary gear transmission device; a steel wire rope is
wound on the surface of the body of the winding drum; one end of the steel wire rope
is fixedly connected to the body of the drum, while the other end thereof is connected
to a rubber belt clamping plate; the rubber belt clamping plate is connected to the old
belt; and, when the driving motor drives the winding drum to rotate, the old belt is
pulled and removed. This device realizes transmission by the planetary gear
transmission device, and has the advantage of large transmission ratio. However, this
device cannot remove the old belt and supply the new belt synchronously, although it
can replace the rubber belt at a short distance.
For another example, in Chinese Invention Patent Application No.
CN104003230A entitled "RUBBER BELT RETRACTING AND EXTENDING
DEVICE FOR BELT CONVEYOR", the rubber belt retracting and extending device
consists of a hydraulic cylinder, upper and lower crawler bases, a hydraulic motor, an
anti-deviation device or the like, wherein the hydraulic cylinder drives the upper and 2
16593452_1 (GHMatters) P112895.AU lower crawler bases to clamp a rubber belt; the high-torque hydraulic motor rotates at two ends of the upper and lower crawler bases so as to drive the crawler belt to move; and, the rubber belt is pulled to move through the friction between the crawler belt and the rubber belt, so as to realize belt replacement. The retracting and extending device in this patent can realize continuous belt replacement, and synchronously realize the pulling of the old belt and the feeding of the new belt.However, in this device, the power component for driving the conveyor belt to move includes both the hydraulic cylinder and the hydraulic motor, and the hydraulic cylinder and the hydraulic motor are mutually restricted in rotation speed. The control is complicated, and the power consumption is high. Moreover, due to the presence of the upper and lower crawler bases, this device is relatively large in size.
Accordingly, the embodiments of the present invention are aimed at providing a continuous belt replacement device driven by a hydraulic drum, which can synchronously realize the pulling of the old belt and the feeding of the new belt and which is simple in control, low in power consumption and small in size.
For this purpose, the technical solutions of the present invention are implemented as below.
The embodiments of the present invention provide a continuous belt replacement device driven by a hydraulic drum, including a belt removal mechanism for removing an old conveyor belt and a belt supply mechanism for supplying a new conveyor belt, wherein a tail end of the old conveyor belt is connected to a start end of the new conveyor belt; a drum set for driving the old conveyor belt to move is arranged in the belt removal mechanism; the drum set includes more than two friction drums, and the friction drums in the friction drum set are radially engaged with each other for linkage or engaged through an intermediate engagement member for linkage; and, a driving 3
16593452_1 (GHMatters) P112895.AU component is arranged on at least one of the friction drums in the drum set to drive the friction drum to rotate; and the drum set for the belt removal mechanism and the drum set for the belt supply mechanism allow the old conveyor belt and the new conveyor belt to be S-shaped between the two friction drums, respectively.
Preferably, a drum set for driving the new conveyor belt to move is arranged in the belt supply mechanism; the drum set includes more than two friction drums, and the friction drums in the drum set are radially engaged with each other for linkage or engaged through an intermediate engagement member; and, a driving component is arranged on at least one of the friction drums in the drum set to drive the friction drum to rotate.
Preferably, two friction drums are arranged in the drum set for each of the belt removal mechanism and the belt supply mechanism, and the two friction drums in each of the drum sets are engaged through at least one first cylindrical gear for linkage; and, second cylindrical gears engaged with the first cylindrical gear are fixed at ends, in a same direction, of the two friction drums in each of the drum sets.
Preferably, the two friction drums in each of the drum sets are engaged with each other for linkage through two first cylindrical gears engaged with each other.
Preferably, each of the friction drums includes a drum with rubber coated on its outer circumferential surface and a drum shaft, with the drum rotating relative to the drum shaft; the driving component is a hydraulic motor which is fixed on the drum shaft; and, a speed regulation component for regulating the rotation speed of the hydraulic motor is arranged in each of the belt removal mechanism and the belt supply mechanism.
Preferably, two hydraulic motors are arranged on each of the friction drums, and the hydraulic motors are fixed at two ends of the friction drum; a reduction gearbox is further arranged in the friction drum; and, an input end of the reduction gearbox is connected to the hydraulic motors, while an output end thereof is connected to the 4
16593452_1 (GHMatters) P112895.AU drum.
Preferably, an inter-roller connecting plate for fixedly connecting drum shafts of
two friction drums is arranged on the drum set for each of the belt removal
mechanism and the belt supply mechanism; a central shaft parallel to the drum shafts
is arranged in the middle of the inter-roller connecting plate; and, both the inter-roller
connecting plate and the drum set rotate relative to the central shaft.
Preferably, a worm gear and a worm both for driving the central shaft to rotate
are arranged on the inter-roller connecting plate; the worm gear is sheathed on the
central shaft; a hand crank, by which it is convenient to rotate the worm, is arranged at
an end of the worm; and, the hand crank is located on an upper side of the inter-roller
connecting plate.
Preferably, a tensioning mechanism for applying a tension to the old conveyor
belt or the new conveyor belt is arranged on each of the belt removal mechanism and
the belt supply mechanism; the tensioning mechanism is arranged above the drum set;
the tensioning mechanism includes two friction rollers that are arranged above and
below the old conveyor belt or the new conveyor belt, respectively; and, the friction
rollers are linked with the friction drums in the drum set through third cylindrical
gears.
Preferably, a braking mechanism is further arranged on the belt replacement
device; the braking mechanism is arranged at an end of the belt replacement device;
the braking mechanism includes a frictional braking component and a power
component; the frictional braking component is arranged at an input end of the old
conveyor belt and/or an output end of the new conveyor belt; and, the power
component is a hydraulic cylinder.
Preferably, a speed sensor for detecting the speed of movement of the old
conveyor belt and/or the new conveyor belt is further arranged in the braking
mechanism, and the power component is electrically connected to the speed sensor. 5
16593452_1 (GHMatters) P112895.AU
Preferably, the frictional braking component includes a fixed soleplate and a
moving braking plate; the soleplate and the braking plate are located above and below
the old conveyor belt and/or the new conveyor belt, respectively; the braking plate is
connected to a piston rod of the hydraulic cylinder; and, an elastic component for
pushing the braking plate to brake the old conveyor belt and/or the new conveyor belt
is further arranged on the frictional braking component.
In the continuous belt replacement device driven by a hydraulic drum provided
in the embodiments of the present invention, a drum set including more than two
friction drums is arranged in the belt removal mechanism, an old conveyor belt to be
removed in the belt conveyor is driven to move by the friction drums in the drum set,
and the movement of the old conveyor belt can lead to the movement of a new
conveyor belt used to replace the old conveyor belt. Moreover, since the friction
drums in the drum set are radially engaged with each other for linkage or engaged
through an intermediate engagement member for linkage, the arrangement of the
driving component in the friction drums is simplified, the control is simple, and the
loads on the friction drums are averaged so that the overall power consumption is
reduced. It can be known that the continuous belt replacement device driven by a
hydraulic drum provided in the embodiments of the present invention synchronously
realizes the pulling of the old belt and the feeding of the new belt, and is simple in
control, low in power consumption, small in size and more suitable for the
replacement of a belt of a belt conveyor with a large dip angle or a long distance.
Fig. 1 is a schematic view of a continuous belt replacement device driven by a
hydraulic drum according to an embodiment of the present invention;
Fig. 2 is a schematic view of a friction drum in the continuous belt replacement
device driven by a hydraulic drum according to an embodiment of the present 6
16593452_1 (GHMatters) P112895.AU invention;
Fig. 3 is a sectional view of Fig. 2;
Fig. 4 is a schematic view of an inter-roller connecting plate in the continuous
belt replacement device driven by a hydraulic drum according to an embodiment of
the present invention;
Fig. 5 is a projection view of Fig. 4;
Fig. 6 is a schematic view of a braking mechanism in the continuous belt
replacement device driven by a hydraulic drum according to an embodiment of the
present invention; and
Fig. 7 is a sectional view of Fig. 6.
The embodiments of the present invention provide a continuous belt replacement
device driven by a hydraulic drum, including a belt removal mechanism for removing
an old conveyor belt and a belt supply mechanism for supplying a new conveyor belt,
wherein a tail end of the old conveyor belt is connected to a start end of the new
conveyor belt; a drum set for driving the old conveyor belt to move is arranged in the
belt removal mechanism; the drum set includes more than two friction drums, and the
friction drums in the friction drum set are radially engaged with each other for linkage
or engaged through an intermediate engagement member for linkage; and, a driving
component is arranged on at least one of the friction drums in the drum set to drive
the friction drum to rotate.
In order to better understand the belt replacement device, the whole belt
replacement process of the belt conveyor will be described prior to the introduction of
the belt replacement device. The belt replacement process includes the following
7
16593452_1 (GHMatters) P112895.AU steps.
1) Stopping: the operation of the belt conveyor is stopped, and the power driving
device is separated from the conveyor belt so that the conveyor belt is in a free state.
2) Fixation of the belt replacement device: if the belt conveyor is an inclined
shaft conveyor, the belt replacement device is fixed below the head of the conveyor
outside the borehole; and, if the belt conveyor is a conveyor of other types, the belt
replacement device may be fixed at any position below the conveyor, preferably at
two ends of the conveyor.
3) Connection: the old conveyor belt below the belt conveyor corresponding to
the belt replacement device is cut off; and, one end of the old conveyor belt is
connected to the belt removal mechanism of the belt replacement device, while the
other end thereof is connected to the belt supply mechanism of the belt replacement
device and then connected to a new conveyor belt. During the connection, it is also
necessary to fix a special connecting belt at the ends of two sections of the conveyor
belt at the cut. This is because the length of the conveyor belt after being cut off is not
enough to be simultaneously connected to the belt removal mechanism and the belt
supply mechanism of the belt replacement device.
4) Belt replacement: the belt removal mechanism and the belt supply mechanism
of the belt replacement device are activated to replace the belt. The speed of the belt
removal mechanism and the belt supply mechanism may be adjusted according to the
belt replacement condition.
The belt replacement in the step 4 may be performed in two operating modes.
The first operating mode is an automatic mode in which belt replacement is
automatically performed after the belt removal mechanism and the belt supply
mechanism of the belt replacement device are activated, until the belt replacement
ends or the belt replacement device is manually stopped by an operator. Another
operating mode is a jog mode in which belt replacement is automatically stopped after 8
16593452_1(GHMatters) P112895.AU a preset time after the belt removal mechanism and the belt supply mechanism of the belt replacement device are activated,. For example, belt replacement is automatically stopped after 1 min. The jog mode is suitable for debugging or troubleshooting.
In order to understand the characteristics and technical contents of the
embodiments of the present invention in more detail, the present invention will be
further described below by specific application embodiments with reference to the
accompanying drawings. The accompanying drawings are for reference only and not
intended to limit the embodiments of the present invention.
Fig. 1 is a schematic view of the continuous belt replacement device driven by a
hydraulic drum according to an embodiment of the present invention. As shown in Fig.
1, the continuous belt replacement device driven by a hydraulic drum includes a belt
removal mechanism, a belt supply mechanism and a braking mechanism.
A drum set for driving the old conveyor belt 7 to move is arranged in the belt
removal mechanism. The drum set includes two friction drums 2-2 and 2-3, and the
friction drums 2-2 and 2-3 are radially engaged with each other for linkage through
two first cylindrical gears 12-1 and 12-2 that are engaged with each other. Second
cylindrical gears 1-2 and 1-3 engaged with the first cylindrical gears 12-1 and 12-2
are fixed at ends, in a same direction, of the friction drums 2-2 and 2-3.
Two hydraulic motors are arranged on each of the friction drums 2-2 and 2-3.
The hydraulic motors are fixed at two ends of the friction drum.
The hydraulic motor has the advantages of small size, light weight, simple
structure, good manufacturability, insensitivity to oil pollution, impact resistance, low
inertia and the like.
Further, the rotation speed of the hydraulic motor may be regulated so that the
movement of the belt removal mechanism and the belt supply mechanism is more
coordinated. A speed regulation component for regulating the rotation speed of the
9
16593452_1 (GHMatters) P112895.AU hydraulic motor is arranged in each of the belt removing belt and the belt supply mechanism.
Specifically, the speed regulation component may be a variable pump. That is,
the rotation speed of the hydraulic motor is regulated, by regulating the oil supply
amount through the variable pump. The variable pump may be controlled by a control
component (not shown) of the belt replacement device.
It can be understood that the speed regulation component may also be other
components for regulating the flow rate of liquid into the hydraulic motor. For
example, the speed regulation component may be a flow valve. That is, for an oil
pump of a certain specification, the flow rate of liquid into the hydraulic motor is
controlled.
Further, the control component may be a programmable logic controller (PLC).
It can be understood that the control component may be other logic control
components, for example, microcontrollers.
In this way, during the operation of the belt replacement device, the two
hydraulic motors drive the friction drums 2-2 and 2-3 to rotate, and the rotation of the
friction drums 2-2 and 2-3 pulls the old conveyor belt 7 to move so as to remove the
old conveyor belt 7.
Further, the activation and deactivation of the hydraulic motors may be
controlled by the control component, so that the movement of the two friction drums
in the drum set for the belt removal mechanism is more coordinated.
Since the friction drums 2-2 and 2-3 are radially engaged with each other for
linkage through two first cylindrical gears 12-1 and 12-2 that are engaged with each
other, the linkage is a rigid linkage. In this way, when the loads on the friction drums
are inconsistent, the loads are averaged and the overall power consumption is reduced.
It can be understood that, in addition to the cylindrical gears, the linkage between 10
16593452_1 (GHMatters) P112895.AU the friction drums 2-2 and 2-3 may be established in other engagement manners, for example, by chains and sprockets, synchronous belts and synchronous belt wheels, or the like.
In order to reduce the loads on the belt removal mechanism, a drum set for
driving the new conveyor belt 11 to move is arranged in the belt supply mechanism.
The drum set includes two friction drums 2-1 and 2-4, and the friction drums 2-1 and
2-4 are radially engaged with each other for linkage through two first cylindrical gears
12-1 and 12-2 that are engaged with each other. Second cylindrical gears 1-1 and 1-4
engaged with the first cylindrical gears 12-1 and 12-2 are fixed at ends, in a same
direction, of the friction drums 2-1 and 2-4.
Similar to the belt removal mechanism, two hydraulic motors are arranged on
each of the friction drums 2-1 and 2-4 of the belt supply mechanism. The hydraulic
motors are fixed at two ends of the friction drum.
Fig. 2 is a schematic view of a friction drum in the continuous belt replacement
device driven by a hydraulic drum according to an embodiment of the present
invention, and Fig. 3 is a sectional view of Fig. 2. As shown in Figs. 2 and 3, each of
the friction drums includes a drum 24 with rubber 22 coated on its outer
circumferential surface and a drum shaft (not shown). The drum 24 rotates relative to
the drum shaft. The driving component is a hydraulic motor 23 which is fixed on the
drum shaft. A reduction gearbox 25 is further arranged in the friction drum. An input
end of the reduction gearbox 25 is connected to the hydraulic motor 23, while an
output end thereof is connected to the drum 24.
Since the rotation speed of the hydraulic motor 23 is generally high, the
reduction gearbox 25 is provided to obtain a large reduction ratio. The reduction
gearbox 25 may realize multi-stage speed reduction.
As shown in Fig. 1, in order to increase the friction between the friction drums
and the conveyor belts, the drum set for the belt removal mechanism and the drum set 11
16593452_1(GHMatters) P112895.AU for the belt supply mechanism allow the old conveyor belt 7 and the new conveyor belt 11 to be S-shaped between the two friction drums, respectively.
Specifically, the technical effect of allowing the old conveyor belt 7 and the new
conveyor belt 11 to be S-shaped between the two friction drums is as follows: the belt
replacement device pulls out the old conveyor belt 7 of the belt conveyor and
synchronously feeds the new conveyor belt 11, and the old conveyor belt 7 is replaced
with the new conveyor belt 11. Since the old conveyor belt 7 and the new conveyor
belt 11 are S-shaped between the two friction drums, the friction is large, and the
conveyor belts are prevented from sliding down freely due to their gravity, so that the
free movement of the conveyor belts on the conveyor is prevented.
In order to conveniently allow the old conveyor belt 7 and the new conveyor belt
11 to be S-shaped between the two friction drums, in this embodiment of the present
invention, the drum set for the belt removal mechanism and the drum set for the belt
supply belt are set to be rotatable in a vertical direction.
Specifically, an inter-roller connecting plate 5 for fixedly connecting drum shafts
of two friction drums is arranged on the drum set for each of the belt removal
mechanism and the belt supply mechanism; a central shaft 51 parallel to the drum
shafts is arranged in the middle of the inter-roller connecting plate 5; and, both the
inter-roller connecting plate 5 and the drum set can rotate relative to the central shaft
51. The inter-roller connecting plate 5 is shown in Figs. 4 and 5.
As shown in Figs. 1, 4 and 5, in order to facilitate the rotation of the drum sets
for the belt removal mechanism and the belt supply mechanism in the vertical
direction, a worm gear and a worm both for driving the central shaft 51 to rotate are
arranged on the inter-roller connecting plate 5; the worm gear 8 is sheathed on the
central shaft 51; a hand crank 52, by which it is convenient to rotate the worm 9, is
arranged at an end of the worm 9; and, the hand crank 52 is located on an upper side
of the inter-roller connecting plate 5. 12
16593452_1 (GHMatters) P112895.AU
In this way, the worm 9 is driven to rotate by the rotation of the hand crank 52,
the worm gear 8 is driven to rotate by the rotation of the worm 9, and the worm gear 8
and the central shaft 51 are radially linked so that the whole drum set will be rotated
in the vertical direction.
The process of allowing the old conveyor belt 7 to be S-shaped between the two
friction drums is as follows: the old conveyor belt 7 is pulled by other power devices
such as a winch, so that the old conveyor belt 7 passes through a passageway between
the two friction drums of the belt removal mechanism at an upward angle of 45 to
reach above the friction drum 2-2; and then, the worm 9 is rotated to drive the worm
gear 8 to rotate, so that the inter-roller connecting plate 5-2 is driven to rotate by 180,
thus realizing the S-shaped winding of the old conveyor belt 7.
The process of allowing the new conveyor belt 11 to be S-shaped between the
two friction drums is similar and will not be repeated here.
Further, a tensioning mechanism for applying a tension to the old conveyor belt 7
or the new conveyor belt 11 is arranged in each of the belt removal mechanism and
the belt supply mechanism, and the tensioning mechanism is arranged above the drum
set.
The tensioning mechanism is configured to prevent the old conveyor belt 7 or the
new conveyor belt 11 from sliding down due to its gravity. Therefore, the tensioning
mechanism is arranged above the drum set.
Specifically, in the belt replacement device, the old conveyor belt 7 and the new
conveyor belt 11 are arranged to the drum sets. When the power components for the
drum sets are not activated or when the belt replacement device pauses during its
operation, the old conveyor belt 7 and the new conveyor belt 11 will slide down due
to their gravity so that the whole belt replacement process may be affected to a certain
extent. Therefore, it is necessary to prevent the old conveyor belt and the new
conveyor belt from sliding down. 13
16593452_1 (GHMatters) P112895.AU
The tensioning mechanism includes two friction rollers (not shown) which are
arranged above and below the old conveyor belt 7 or the new conveyor belt 11,
respectively. The friction rollers are linked with the friction drums in the drum set
through third cylindrical gears.
Specifically, fourth cylindrical gears 4-2 and 6-2 are arranged at ends, in a same
direction, of the two friction rollers above and below the new conveyor belt 11; the
fourth cylindrical gear 4-2 is engaged with the third cylindrical gear 3-2; and the third
cylindrical gear 3-2 is engaged with the second cylindrical gear 1-3 of the friction
drum.
Similarly, fourth cylindrical gears 4-1 and 6-1 are arranged at ends, in a same
direction, of the two friction rollers above and below the old conveyor belt 7; the fifth
cylindrical gear 4-1 is engaged with the third cylindrical gear 3-1; and the third
cylindrical gear 3-1 is engaged with the second cylindrical gear 1-4 of the friction
drum.
Since the two friction rollers are press-fitted with each other, the old conveyor
belt 7 or the new conveyor belt 11 cannot move along the surface of the friction
rollers. Moreover, since the fourth cylindrical gear 4-2 is linked with the friction
drums in the drum set, the friction rollers cannot be pulled to rotate by the gravity of
the old conveyor belt 7 or the new conveyor belt 11. Therefore, the tensioning
mechanism effectively prevents the old conveyor belt 7 and the new conveyor belt 11
from sliding down due to their gravity.
More specifically, the arrangement of the tensioning mechanism in the belt
replacement device has the following technical effects: on the basis of allowing the
old conveyor belt 7 and the new conveyor belt 11 to be S-shaped between the two
friction drums, the conveyor belts can be further prevented from freely sliding down
due to their gravity. Thus, the free movement of the conveyor belts on the conveyor is
prevented. 14
16593452_1 (GHMatters) P112895.AU
Further, the two arrangements, i.e., allowing the old conveyor belt 7 and the new
conveyor belt 11 to be S-shaped between the two friction drums and the tensioning
mechanism, may be used separately to prevent the conveyor belts from freely sliding
down due to their gravity, or may be used together to achieve better effect.
During the normal operation of the belt replacement device, the friction rollers
rotate as the friction drums rotate, in a same direction as the direction of movement of
the old conveyor belt 7 or the new conveyor belt 11. Thus, the movement of the old
conveyor belt 7 or the new conveyor belt 11 is further facilitated, that is, the tension
applied to the old conveyor belt 7 or the new conveyor belt 11 is increased.
Additionally, since the number of teeth of the fourth cylindrical gear 4-2 and the
third cylindrical gear 3-2 is far less than that of the second cylindrical gears 1-3 and
1-4, the speed of rotation is increased. Therefore, the old conveyor belt 7 or the new
conveyor belt 11 may slip on the friction rollers of the tensioning mechanism, but the
operation of the whole device will not be affected.
Fig. 6 is a schematic view of a braking mechanism in the continuous belt
replacement device driven by a hydraulic drum according to an embodiment of the
present invention, and Fig. 7 is a sectional view of Fig. 6. As shown in Figs. 1, 6 and 7,
the braking mechanism is arranged at an end of the belt replacement device. The
braking mechanism includes a braking box and a hydraulic cylinder 17.
The braking box (i.e., a frictional braking component) includes an upper braking
box 20, a middle braking box 21 and a lower braking box 14. The old conveyor belt 7
passes between the upper braking box 20 and the middle braking box 21, and the new
conveyor belt 11 passes between the middle braking box 21 and the lower braking
box 14. Braking plates 15-2 and 15-1 each having a braking direction towards the
conveyor belt are arranged on each of the upper braking box 20 and the lower braking
box 14. The top of the middle braking box 21, together with the upper braking box 20,
brakes the old conveyor belt 7, that is, the top of the middle braking box 21 is a 15
16593452_1 (GHMatters) P112895.AU soleplate matched with the braking plate 15-2 of the upper braking box 20. The bottom of the middle braking box 21, together with the lower braking box 14, brakes the new conveyor belt 11, that is, the bottom of the middle braking box 21 is a soleplate matched with the braking plate 15-1 of the lower braking box 14.
Specifically, the braking plates 15-2 and 15-1 are connected to a piston rod of the
hydraulic cylinder 17.
Further, an elastic component 18 for pushing the braking plate 15-2 to brake the
old conveyor belt 7 is further arranged on the upper braking box 20; an elastic
component 18 for pushing the braking plate 15-1 to brake the new conveyor plate 11
is further arranged on the lower braking box 14; and, the elastic components 18 may
be butterfly springs.
Specifically, during the normal operation of the belt replacement device, the
control component (i.e., the PLC) instructs the piston rod of the hydraulic cylinder 17
to contract, so that the elastic components 18 are largely compressed to be in an
energy storage state, and the braking plates 15-2 and 15-1 are suspended. When
braking is required, the control component instructs the piston rod of the hydraulic
cylinder 17 to extend, so that the braking plates 15-2 and 15-1 realize braking under
the dual action of the hydraulic cylinder 17 and the elastic components 18.
In this way, when the hydraulic cylinder 17 of the braking mechanism fails to
operate due to power outage or fault of the hydraulic pump, the braking plates 15-2
and 15-1 can realize braking due to the elastic components 18. The impossibility of
braking due to power outage or fault is avoided.
In this embodiment of the present invention, the frictional braking component is
divided into upper, middle and lower braking boxes. It is convenient for
manufacturing and assembly. It can be understood that the frictional braking
component may be of other structures.
16
16593452_1 (GHMatters) P112895.AU
Further, a speed sensor (not shown) for detecting the speed of movement of the
old conveyor belt 7 and the new conveyor belt 11 is further arranged on the braking
mechanism, and the hydraulic cylinder 17 is electrically connected to the speed
sensor.
Specifically, the hydraulic cylinder 17 is electrically connected to the speed
sensor through the control component, that is, the speed sensor is electrically
connected to the control component and the control component is then electrically
connected to the hydraulic cylinder 17. When the speed sensor detects that the speed
of movement of the old conveyor belt 7 or the new conveyor belt 11 is abnormal, the
control component is notified, and the control component instructs the hydraulic
cylinder 27 to brake.
Further, in addition to detecting the speed of movement of the old conveyor belt
and the new conveyor belt through the speed sensor, an encoder for detecting the
rotation speed of the friction drums in the drum sets for the belt removal mechanism
and the belt supply mechanism may be further arranged in the braking mechanism. If
the encoder detects that the rotation speed of the friction drums is abnormal, the
control component may be notified of braking. The control component may be a PLC.
Further, in order to support and fix the belt removal mechanism, the belt supply
mechanism and the braking mechanism, upright posts 13-1 and 13-2 fixed on the
ground are arranged in the belt replacement device. The lower braking box 14 of the
braking mechanism is fixed on the upright posts 13-1 and 13-2, and the upper braking
box 20 and the middle braking box 21 are successively fixed on the lower braking box
14.
Crossbeams 10-1 and 10-2 for fixing the belt removal mechanism and the belt
supply mechanism are arranged on one side of the upper braking box 20, the middle
braking box 21 and the lower braking box 14. Since the crossbeams are in the form of
cantilever beams, the crossbeams 10-1 and 10-2 are shaped in triangles that are 17
16593452_1 (GHMatters) P112895.AU relatively stable.
The inter-roller connecting plates 5 of the belt removal mechanism and the belt
supply mechanism are fixed on the crossbeams 10-1 and 10-2, respectively.
The forgoing description merely shows preferred embodiments of the present
invention and is not intended to limit the protection scope of the present invention.
Any modification, equivalent replacement or improvement made without departing
from the spirit and principle of the present invention shall fall into the protection
scope of the present invention.
In the continuous belt replacement device driven by a hydraulic drum arranged in
the embodiments of the present invention, a drum set including more than two friction
drums is arranged in the belt removal mechanism, an old conveyor belt to be removed
in the belt conveyor is driven to move by the friction drums in the drum set, and the
movement of the old conveyor belt can lead to the movement of a new conveyor belt
used to replace the old conveyor belt. Moreover, since the friction drums in the drum
set are radially engaged with each other for linkage or engaged through an
intermediate engagement member for linkage, the arrangement of the driving
component in the friction drums is simplified, the control is simple, and the loads on
the friction drums are averaged, so that the overall power consumption is reduced. It
can be known that the continuous belt replacement device driven by a hydraulic drum
arranged in the embodiments of the present invention synchronously realizes the
pulling of the old belt and the feeding of the new belt, and is simple in control, low in
power consumption, small in size and more suitable for the replacement of a belt of a
belt conveyor with a large dip angle or a long distance.
It is to be understood that, if any prior art publication is referred to herein, such
reference does not constitute an admission that the publication forms a part of the
common general knowledge in the art, in Australia or any other country. 18
16593452_1 (GHMatters) P112895.AU
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
19
16593452_1 (GHMatters) P112895.AU
Claims (12)
1. A continuous belt replacement device driven by a hydraulic drum, comprising
a belt removal mechanism for removing an old conveyor belt and a belt supply
mechanism for supplying a new conveyor belt, wherein a tail end of the old conveyor
belt is connected to a start end of the new conveyor belt; a drum set for driving the old
conveyor belt to move is arranged in the belt removal mechanism; the drum set
comprises more than two friction drums, and the friction drums in the friction drum
set are radially engaged with each other for linkage or engaged through an
intermediate engagement member for linkage; and, a driving component is arranged
on at least one of the friction drums in the drum set to drive the friction drum to rotate;
and
the drum set for the belt removal mechanism and the drum set for the belt supply
mechanism allow the old conveyor belt and the new conveyor belt to be S-shaped
between the two friction drums, respectively.
2. The continuous belt replacement device according to claim 1, wherein a drum
set for driving the new conveyor belt to move is arranged in the belt supply
mechanism; the drum set comprises more than two friction drums, and the friction
drums in the drum set are radially engaged with each other for linkage or engaged
through an intermediate engagement member; and, a driving component is arranged
on at least one of the friction drums in the drum set to drive the friction drum to
rotate.
3. The continuous belt replacement device according to claim 2, wherein two
friction drums are arranged in the drum set for each of the belt removal mechanism
and the belt supply mechanism, and the two friction drums in each of the drum sets
are engaged through at least one first cylindrical gear for linkage; and, second
20
16593452_1 (GHMatters) P112895.AU cylindrical gears engaged with the first cylindrical gear are fixed at ends, in a same direction, of the two friction drums in each of the drum sets.
4. The continuous belt replacement device according to claim 3, wherein the
two friction drums in each of the drum sets are engaged with each other for linkage
through two first cylindrical gears engaged with each other.
5. The continuous belt replacement device according to any one of claims 1 to
4, wherein each of the friction drums comprises a drum with rubber coated on its
outer circumferential surface and a drum shaft, with the drum rotating relative to the
drum shaft; the driving component is a hydraulic motor which is fixed on the drum
shaft; and, a speed regulation component for regulating the rotation speed of the
hydraulic motor is arranged in each of the belt removal mechanism and the belt
supply mechanism.
6. The continuous belt replacement device according to claim 5, wherein two
hydraulic motors are arranged on each of the friction drums, and the hydraulic motors
are fixed at two ends of the friction drum; a reduction gearbox is further arranged in
the friction drum; and, an input end of the reduction gearbox is connected to the
hydraulic motors, while an output end thereof is connected to the drum.
7. The continuous belt replacement device according to claim 6, wherein an
inter-roller connecting plate for fixedly connecting drum shafts of the two friction
drums is arranged on the drum set for each of the belt removal mechanism and the
belt supply mechanism; a central shaft parallel to the drum shafts is arranged in the
middle of the inter-roller connecting plate; and, both the inter-roller connecting plate 21
16593452_1 (GHMatters) P112895.AU and the drum set rotate relative to the central shaft.
8. The continuous belt replacement device according to claim 7, wherein a worm gear and a worm both for driving the central shaft to rotate are arranged on the inter-roller connecting plate; the worm gear is sheathed on the central shaft; a hand crank, by which it is convenient to rotate the worm, is arranged at an end of the worm; and, the hand crank is located on an upper side of the inter-roller connecting plate.
9. The continuous belt replacement device according to any one of claims 4 to 8, wherein a tensioning mechanism for applying a tension to the old conveyor belt or the new conveyor belt is arranged on each of the belt removal mechanism and the belt supply mechanism; the tensioning mechanism is arranged above the drum set; the tensioning mechanism comprises two friction rollers that are arranged above and below the old conveyor belt or the new conveyor belt, respectively; and, the friction rollers are linked with the friction drums in the drum set through third cylindrical gears.
10. The continuous belt replacement device according to any one of claims 1 to 9, wherein a braking mechanism is further arranged on the belt replacement device; the braking mechanism is arranged at an end of the belt replacement device; the braking mechanism comprises a frictional braking component and a power component; the frictional braking component is arranged at an input end of the old conveyor belt and/or an output end of the new conveyor belt; and, the power component is a hydraulic cylinder.
11. The continuous belt replacement device according to claim 10, wherein a 22
16593452_1 (GHMatters) P112895.AU speed sensor for detecting the speed of movement of the old conveyor belt and/or the new conveyor belt is further arranged in the braking mechanism, and the power component is electrically connected to the speed sensor.
12. The continuous belt replacement device according to claim 11, wherein the frictional braking component comprises a fixed soleplate and a moving braking plate; the soleplate and the braking plate are located above and below the old conveyor belt and/or the new conveyor belt, respectively; the braking plate is connected to a piston rod of the hydraulic cylinder; and, an elastic component for pushing the braking plate to brake the old conveyor belt and/or the new conveyor belt is further arranged on the frictional braking component.
23
16593452_1 (GHMatters) P112895.AU
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860549.1 | 2017-09-21 | ||
| CN201710860549.1A CN107695641B (en) | 2017-09-21 | 2017-09-21 | Hydraulic roller driving type continuous belt changing device |
| PCT/CN2017/104582 WO2019056411A1 (en) | 2017-09-21 | 2017-09-29 | Continuous belt changing device driven by hydraulic roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2017432501A1 AU2017432501A1 (en) | 2020-02-06 |
| AU2017432501B2 true AU2017432501B2 (en) | 2020-10-22 |
Family
ID=61171780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2017432501A Ceased AU2017432501B2 (en) | 2017-09-21 | 2017-09-29 | Continuous belt changing device driven by hydraulic roller |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN107695641B (en) |
| AU (1) | AU2017432501B2 (en) |
| WO (1) | WO2019056411A1 (en) |
| ZA (1) | ZA202000285B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295608B (en) * | 2018-10-30 | 2024-04-19 | 常州市第八纺织机械有限公司 | Multi-axial warp knitting machine encoder speed increasing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119164B (en) * | 1959-10-14 | 1961-12-07 | Hauhinco Maschf | Clamping device for conveyor belts |
| CN203900823U (en) * | 2014-06-07 | 2014-10-29 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Fast rubber belt replacing device of belt conveyor |
| CN204416330U (en) * | 2014-12-18 | 2015-06-24 | 大同煤矿集团有限责任公司 | Novel belt machine leather belt head device |
| CN106429177A (en) * | 2016-11-15 | 2017-02-22 | 太原理工大学 | Belt changing device of belt type conveyor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4233131A1 (en) * | 1992-10-02 | 1994-04-07 | Bosch Gmbh Robert | Continuous conveyor belt assembly - running between drive and deflector, has rotary belt roller |
| KR20030052187A (en) * | 2001-12-20 | 2003-06-26 | 주식회사 포스코 | Belt change apparatus of sludge belt- press |
| CN203696897U (en) * | 2014-01-15 | 2014-07-09 | 中国神华能源股份有限公司 | Device and equipment for replacing belt conveyor roller |
| CN203833951U (en) * | 2014-04-22 | 2014-09-17 | 温州市万里马皮件服饰有限公司 | Strip cutter for leather |
| CN104003230B (en) * | 2014-06-07 | 2016-05-04 | 太原理工大学 | A kind of adhesive tape draw off gear for ribbon conveyer |
| CN104839867A (en) * | 2015-05-06 | 2015-08-19 | 绍兴文理学院 | Spiral brush roller type Chinese torreya cleaning machine |
| CN104909112A (en) * | 2015-06-04 | 2015-09-16 | 山西晋城无烟煤矿业集团有限责任公司 | Fast replacement process for long-distance steel cord belt |
-
2017
- 2017-09-21 CN CN201710860549.1A patent/CN107695641B/en active Active
- 2017-09-29 WO PCT/CN2017/104582 patent/WO2019056411A1/en active Application Filing
- 2017-09-29 AU AU2017432501A patent/AU2017432501B2/en not_active Ceased
-
2020
- 2020-01-15 ZA ZA2020/00285A patent/ZA202000285B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119164B (en) * | 1959-10-14 | 1961-12-07 | Hauhinco Maschf | Clamping device for conveyor belts |
| CN203900823U (en) * | 2014-06-07 | 2014-10-29 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Fast rubber belt replacing device of belt conveyor |
| CN204416330U (en) * | 2014-12-18 | 2015-06-24 | 大同煤矿集团有限责任公司 | Novel belt machine leather belt head device |
| CN106429177A (en) * | 2016-11-15 | 2017-02-22 | 太原理工大学 | Belt changing device of belt type conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107695641B (en) | 2021-05-25 |
| AU2017432501A1 (en) | 2020-02-06 |
| ZA202000285B (en) | 2020-12-23 |
| CN107695641A (en) | 2018-02-16 |
| WO2019056411A1 (en) | 2019-03-28 |
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