AU2020372454A1 - Transportation device for integrated liquid supply system, control system thereof, and integrated liquid supply apparatus - Google Patents
Transportation device for integrated liquid supply system, control system thereof, and integrated liquid supply apparatus Download PDFInfo
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- AU2020372454A1 AU2020372454A1 AU2020372454A AU2020372454A AU2020372454A1 AU 2020372454 A1 AU2020372454 A1 AU 2020372454A1 AU 2020372454 A AU2020372454 A AU 2020372454A AU 2020372454 A AU2020372454 A AU 2020372454A AU 2020372454 A1 AU2020372454 A1 AU 2020372454A1
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- 239000007788 liquid Substances 0.000 title claims abstract description 129
- 230000000712 assembly Effects 0.000 claims abstract description 25
- 238000000429 assembly Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/006—Equipment transport systems
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/021—Installations or systems with accumulators used for damping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B13/0444—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with rotary electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Disclosed are a transportation device for an integrated liquid supply system, a control system thereof, and an integrated liquid supply apparatus. The transportation device comprises a plurality of sequentially connected flatbed truck assemblies (101). Each of the flatbed truck assemblies comprises a truck body (201); a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly (502) and a second end connected to a medium converging point (304); a reversing valve (206), having a liquid inlet end connected to the medium converging point; a hydraulic motor (202), mounted at a designated position on the truck body, having a first end and a second end respectively connected to a first end and a second end of the reversing valve, wherein the hydraulic motor is capable of adjusting the rotation direction and rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; a transmission mechanism, arranged at the bottom portion of the truck body and comprising a driving wheel (203), the driving wheel having a rotation shaft connected to the drive output shaft of the hydraulic motor, such that the driving wheel is driven by the drive output shaft to either rotate or stop, and in turn causes the flatbed truck assembly to move or stop. The transportation device improves the safety and stability of the integrated liquid supply system during transportation.
Description
This application claims the priority to Chinese Patent Application No. 201911013129.5 filed on October 2 3th, 2019 before the Chinese Patent Office, and titled "TRANSPORTATION DEVICE FOR INTEGRATED LIQUID SUPPLY SYSTEM, CONTROL SYSTEM THEREOF, AND INTEGRATED LIQUID SUPPLY APPARATUS", the entire contents of which are incorporated herein by reference.
The present invention relates to the technical field of mining devices for fully-mechanized coal faces, in particular to a transportation device for an integrated liquid supply system, a control system thereof and an integrated liquid supply apparatus.
At present, in a track roadway of a fully-mechanized coal face in China, an emulsion pump, a liquid tank, a transformer, a comprehensive protection device, a switch and other devices included in an integrated liquid supply system are respectively fixed on flatbed trucks, and the flatbed trucks are connected end to end in sequence. The flatbed trucks are driven by a winch to move forwards along the advancing of a working face. During the moving process, the emulsion pump of the integrated liquid supply system supplies liquid for a hydraulic support.
In the prior art, such a pulling and moving mode is prone to accidents such as rope breakage and sliding in a roadway with uphill and downhill slopes, and has great potential safety hazards.
The technical problem to be solved by the invention is that in the prior art, when a device used for transporting an integrated liquid supply system passes through a sloping roadway, situations such as rope breakage, slope slip and the like which affect safe transportation easily occur, therefore, an transportation device for an integrated liquid supply system, a control system and an integrated liquid supply equipment are provided.
The present invention provides a transportation device for an integrated liquid supply system, comprising a plurality of sequentially connected flatbed truck assemblies, wherein each of the flatbed truck assemblies comprises: a truck body, having a bearing face for bearing a component of the integrated liquid supply system; a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly and a second end connected to a medium converging point; wherein, a controlled end of the valve assembly is configured for communicating and connecting with an upper computer to receive a control instruction sent by the upper computer and be switched on or off according to the control instruction; a reversing valve, having a liquid inlet end connected to the medium converging point; a hydraulic motor, mounted at a designated position on the truck body, having a first end and a second end respectively connected to a first end and a second end of the reversing valve, wherein the hydraulic motor is capable of adjusting a rotation direction and a rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; and a transmission mechanism, arranged at a bottom portion of the truck body and comprising a driving wheel; wherein, a rotating shaft of the driving wheel is connected to the drive output shaft of the hydraulic motor, and the driving wheel is driven by the drive output shaft to rotate or stop, so as to drive the flatbed truck assemblies to move or stop.
Optionally, in the transportation device for the integrated liquid supply system, the valve assembly comprises:
a motor, having a controlled end serving as the controlled end of the valve assembly and in communication connection with the upper computer; wherein, a rotation speed of the output shaft of the motor is corresponding to the control instruction;
a pump body, having a liquid inlet serving as the first end of the medium conveying path and connected to the medium outlet of the integrated liquid supply system, and having a driven end connected to the output shaft of the motor; wherein, the pump body extracts the medium from the medium outlet of the integrated liquid supply system under the drive of the motor; and
an unloading valve, having a liquid inlet connected to a liquid outlet of the pump body and a liquid outlet serving as the second end of the medium conveying path and connected to the medium converging point.
Optionally, in the transportation device for the integrated liquid supply system, the motor is a variable frequency motor.
Optionally, the transportation device for the integrated liquid supply system further comprises a speed sensor:
the speed sensor being arranged on any one or more of the truck body, and configured for measuring a moving speed of the truck body and sending a measuring result to the upper computer.
Optionally, in the transportation device for the integrated liquid supply system, in the truck bodies of any two adjacent flatbed trucks, a first supporting plate extends from the first truck body, the first supporting plate is provided with a first mounting hole, and a second supporting plate extends from the second truck body, the second supporting plate is provided with a second mounting hole, the first supporting plate and the second supporting plate are arranged opposite to each other and the first supporting plate is located below the second supporting plate, and the first mounting hole and the second mounting hole are aligned and then connected through a locking piece.
The present invention further provides a control system of a transportation device for an integrated liquid supply system, comprising any one of the transportation device for the integrated liquid supply system and the upper computer described above, wherein:
the upper computer is configured for communicating and connecting with a hydraulic support controller, acquiring a liquid supply parameter of the hydraulic support, obtaining a theoretical moving speed of the integrated liquid supply system according to the liquid supply parameter, generating a control instruction according to the theoretical moving speed and sending the control instruction to the controlled end of the valve assembly of the transportation device; and
the controlled end of the valve assembly receives the control instruction sent by the upper computer, and is switched on or off according to the control instruction, so as to control the transportation device to move according to the theoretical moving speed.
Optionally, in the control system of the transportation device for the integrated liquid supply system, the control instruction generated by the upper computer comprises a rotation speed value of the motor; and
the motor in the valve assembly rotates according to the rotation speed value of the motor, and is capable of driving the pump body to extract a theoretical amount of medium from the integrated liquid supply system, the theoretical amount of medium is evenly distributed to a plurality of hydraulic motors, and the drive output shaft of the hydraulic motor drives the driving wheel to move at the theoretical moving speed.
Optionally, in the control system of the transportation device for the integrated liquid supply system, the upper computer is further configured for receiving the moving speed of the truck body sent by the speed sensor in the transportation device; if a difference between the moving speed and the theoretical moving speed exceeds a set threshold, the upper computer adjusts the control instruction to increase or decrease the rotation speed value of the motor, so that the difference between the moving speed of the transportation device and the theoretical moving speed is less than or equal to the set threshold.
Optionally, in the control system of the transportation device for the integrated liquid supply system, the upper computer increases or decreases the rotation speed value of the motor by adjusting a running frequency of the motor.
The present invention further provides an integrated liquid supply apparatus, comprising an integrated liquid supply system, and any one of the control system described above, wherein different components of the integrated liquid supply system are sequentially arranged on the truck bodies of different flatbed truck assemblies in the transportation device.
Compared with the prior art, the foregoing technical solutions provided by the embodiments of the present invention at least have the following advantageous effects.
According to the transportation device for the integrated liquid supply system, the control system thereof, and the integrated liquid supply apparatus provided by the embodiments of the present invention, the transportation device comprises the plurality of sequentially connected flatbed truck assemblies, and each of the flatbed truck assemblies comprises: the truck body, having the bearing face for bearing the component of the integrated liquid supply system; the medium conveying path, having the first end connected to the medium outlet of the integrated liquid supply system via the valve assembly and the second end connected to the medium converging point; wherein, the controlled end of the valve assembly is configured for communicating and connecting with the upper computer to receive the control instruction sent by the upper computer and be switched on or off according to the control instruction; the reversing valve, having the liquid inlet end connected to the medium converging point; the hydraulic motor, mounted at the designated position on the truck body, having the first end and the second end respectively connected to the first end and the second end of the reversing valve, wherein the hydraulic motor is capable of adjusting the rotation direction and the rotation speed of the drive output shaft thereof according to the flow direction of the medium and the amount of flowing medium; and the transmission mechanism, arranged at the bottom portion of the truck body and comprising the driving wheel; wherein, the rotating shaft of the driving wheel is connected to the drive output shaft of the hydraulic motor, and the driving wheel is driven by the drive output shaft to rotate or stop, so as to drive the flatbed truck assemblies to move or stop. In the above solution, the medium is provided to the hydraulic motor through the integrated liquid supply system, thus driving the hydraulic motor to rotate forwards and reversely or stop, which can drive the driving wheel to rotate forwards and reversely or stop. Because each flatbed truck assembly is driven by itself without being pulled and moved by the front flatbed truck assembly, rope breakage is avoided when going uphill, while when going downhill, the rotation of the driving wheel is restricted by the drive of the hydraulic motor, so that landslide can be avoided, and the safety and stability of the integrated liquid supply system during transportation are improved.
FIG. 1 is a schematic structural diagram of a transportation device for an integrated liquid supply system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of flatbed truck assemblies according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection relation between driving parts of the flatbed truck assemblies according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connecting structure of the flatbed truck assemblies according to an embodiment of the present invention; and
FIG. 5 is a functional block diagram of a control system of a transportation device for an integrated liquid supply system according to an embodiment of the present invention.
In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings. In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "installation", "connected" and "connection" should be understood broadly, and those of ordinary skills in the art can understand the specific meanings of the above terms in the present invention according to specific conditions.
In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connected" and "connection" should be understood broadly, for example, the connection may be fixed connection, and may also be detachable connection or integral connection; may be mechanical connection, and may also be electrical connection; may be directly connected, may also be indirectly connected through an intermediate medium, and may also be internal communication of two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skills in the art according to specific conditions.
Embodiment 1
This embodiment provides a transportation device for an integrated liquid supply system, which, with reference to FIG. 1, FIG. 2, FIG. 3, comprises a plurality of sequentially connected flatbed truck assemblies 101, and each of the flatbed truck assemblies 101 comprises:
a truck body 201, having a bearing face for bearing a component 102 of the integrated liquid supply system; a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly and a second end connected to a medium converging point 304; wherein, a controlled end of the valve assembly is configured for communicating and connecting with an upper computer, the valve assembly receives a control instruction sent by the upper computer to be switched on or off according to the control instruction, and the valve assembly is switched on; a reversing valve 206 (it can be seen from the figure that the number of the reversing valve should be the same as the sum of the number of hydraulic motors 202 and hydraulic support cylinders 307, that is, each reversing valve 206 is connected to one hydraulic motor 202 or one hydraulic support cylinder 307), having a liquid inlet end connected to the medium converging point 304; a hydraulic motor 202, mounted at a designated position on the truck body 201, having a first end and a second end respectively connected to a first end and a second end of the reversing valve 206, wherein the hydraulic motor 202 is capable of adjusting a rotation direction and a rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; and a transmission mechanism, arranged at a bottom portion of the truck body 201 (according to the structure shown in the figure, two transmission mechanisms may be comprised, and the two transmission structures are symmetrically arranged near two ends of the truck body 201) and comprising a driving wheel 203; wherein, a rotating shaft of the driving wheel 203 is connected to the drive output shaft of the hydraulic motor 202, and the driving wheel 203 is driven by the drive output shaft to rotate or stop, so as to drive the flatbed truck assemblies 101 to move or stop. The rotating shaft of the driving wheel 203 may be in transmission connection with the output shaft of the hydraulic motor through a rack 205. In this case, an outer wall of the drive output shaft of the hydraulic motor and an outer wall of the rotating shaft of the driving wheel 203 are formed with meshing teeth. The medium above may be hydraulic oil.
In the above solution, when the valve assembly is switched on, the medium in the integrated liquid supply system may be transmitted to the medium converging point 304 through the valve assembly, and each reversing valve 206 is connected to the medium converging point. After entering the reversing valves 206, the flow directions of the medium are different, which are respectively corresponding to different operation modes of the hydraulic support cylinder 307/hydraulic motor 202. For the hydraulic support cylinder 307, working modes thereof comprise being extended and retracted, and for the hydraulic motor 202, working modes thereof are respectively corresponding to forward rotation and reverse rotation of the drive output shaft thereof. When there is no medium flowing in the reversing valve 206, the reversing valve does not operate corresponding to the hydraulic support cylinder 307 or the hydraulic motor 202. When the hydraulic motor 202 rotates forwards and reversely, the hydraulic motor can drive the flatbed truck assemblies 101 to move forwards or backwards through the driving wheel 203. When the hydraulic motor 202 does not operate, the hydraulic motor can control the flatbed truck assemblies 101 to stop.
In the above solution, the integrated liquid supply system provides medium for the hydraulic motor 202 to drive the hydraulic motor 202 to rotate forwards and reversely or stop, which can drive the driving wheel 203 to rotate forwards and reversely or stop. Since each flatbed truck assembly 101 is driven by itself without being pulled and moved by the front flatbed truck assembly, rope breakage is avoided when going uphill, while when going downhill, the rotation of the driving wheel 203 is restricted by the drive of the hydraulic motor 202 and thus the driving wheel 203 cannot accelerate by itself, so that landslide can be avoided, and the safety and stability of the integrated liquid supply system during transportation are improved.
In the above solution, as shown in FIG. 2, the transmission mechanism may further comprise a traction wheel 204, the rotating shaft of the driving wheel 203 and a rotating shaft of the traction wheel 204 are both configured with a gear structure, and the two gear structures are engaged through a rack. The traction wheel 204 rotates or stops synchronously with the driving wheel 203. The transmission mechanism moves through the two-wheel structure, which can improve the stability in the moving process.
Moreover, in the above technical solution provided by this embodiment, the integrated liquid supply system itself is configured for providing medium for the hydraulic support cylinder 201, but the improvement point of this application is that the hydraulic motors 202 are added, and each hydraulic motor 202 also relies on the integrated liquid supply system to supply it with liquid, so the working mode of the hydraulic support cylinder 307 will not be described in detail in the following solutions of this application. Please refer to the existing technical solutions.
Further, as shown in FIG. 3, in the transportation device for the integrated liquid supply system, the valve assembly comprises:
a motor 301, having a controlled end serving as the controlled end of the valve assembly and in communication connection with the upper computer; wherein, a rotation speed of the output shaft of the motor 301 is corresponding to the control instruction; a pump body 302, wherein the pump body 302 may be realized by an emulsion pump, a liquid inlet of the pump body serves as the first end of the medium conveying path and is connected to the medium outlet of the integrated liquid supply system, and a driven end of the pump body is connected to the output shaft of the motor 301; and the pump body 302 extracts the medium from the medium outlet of the integrated liquid supply system under the drive of the motor 301; and an unloading valve 303, having a liquid inlet connected to a liquid outlet of the pump body 302 and a liquid outlet serving as the second end of the medium conveying path and connected to the medium converging point 304. For the motor 301, the rotation speed of the output shaft thereof may be controlled by a motor controller, and the upper computer may be operated by operating personnel. The upper computer can automatically or artificially determine a theoretical rotation speed of the motor 301, and then the upper computer can convert the theoretical rotation speed into a corresponding signal and send the speed to the motor controller. The motor controller can directly control the output shaft thereof to rotate at a corresponding speed according to the received signal.
Preferably, the motor 301 is a variable frequency motor. When the motor 301 is a variable frequency motor, the rotation speed of the output shaft thereof may be adjusted in a relatively large range, so that the working frequency of the pump body 302 may also change. When the working frequency of the pump body 302 changes, the amount of medium entering the medium converging point changes accordingly, so that the hydraulic motor 302 may have different amounts of medium entering an interior thereof, and the rotation speed of the drive output shaft of the hydraulic motor 202 changes accordingly, thereby controlling a traveling speed of the flatbed truck assembly 101. The variable frequency motor and the unloading valve adopted in the above solution can be realized by the existing devices in the prior art.
In addition, the transportation device for the integrated liquid supply system in the above solution, as shown in FIG. 3, may further comprise a safety valve 305. The safety valve 305 is arranged between the liquid outlet of the pump body 302 and the liquid inlet of the unloading valve 303. A liquid inlet end of the safety valve 305 is directly communicated with the liquid outlet of the pump body 302. If the medium is blocked in the system or the pressure in the medium conveying path is too high and exceeds an opening threshold of the safety valve 305 for other reasons, the safety valve 305 will open independently to release the medium. A liquid outlet of the safety valve 305 may be connected to a medium recovery tank, and the like, so that the released medium can be further recovered.
Further, the transportation device for the integrated liquid supply system above may further comprise an accumulator 306, and an inlet end of the accumulator 306 is connected to the medium converging point 304. The accumulator 306 can offset a pressure change caused by fluctuations of a flow speed or flow rate in the medium transmission process, that is, if the medium flow suddenly increases, the accumulator 306 can absorb pressure increase caused by the sudden increase of medium, and when the medium flow suddenly decreases, the accumulator 306 can release energy to offset the pressure fluctuation caused by the sudden decrease of medium flow.
In the above solution, as shown in FIG. 4, in the truck bodies 201 of any two adjacent flatbed trucks, a first supporting plate 401 extends from the first truck body, the first supporting plate 401 is provided with a first mounting hole, and a second supporting plate 402 extends from the second truck body, the second supporting plate 402 is provided with a second mounting hole, the first supporting plate 401 and the second supporting plate 402 are arranged opposite to each other and the first supporting plate 401 is located below the second supporting plate, and the first mounting hole and the second mounting hole are aligned and then connected through a locking piece. As shown in FIG. 4, the locking piece is a pin shaft 403, one end of the pin shaft 403 is provided with a baffle 404, and the baffle 404 is defined on one side of the second supporting plate 402 facing away from the first supporting plate 401. The first supporting plate 401 and the second supporting plate 402 can both slide axially along the pin shaft 403. Due to the difference in component weights of the integrated liquid supply device supported on two adjacent truck bodies, when driven by the hydraulic motor 202, the rising or falling speeds of the two truck bodies 201 are different. The two truck bodies 201 are connected by the pin shaft 403, and an enough gap is left between the first supporting plate 401 and the second supporting plate 402, which can buffer a displacement difference caused by the rising or falling speeds of the two truck bodies 201 and ensure the normal use of the plurality of flatbed truck assemblies 101.
Embodiment 2
This embodiment provides a control system of a transportation device for an integrated liquid supply system, as shown in FIG. 5, comprising the transportation device for the integrated liquid supply system and an upper computer 501, wherein the upper computer 501 is configured for communicating and connecting with a hydraulic support controller 503, acquiring a liquid supply parameter of the hydraulic support, obtaining a theoretical moving speed of the integrated liquid supply system according to the liquid supply parameter, generating a control instruction according to the theoretical moving speed and sending the control instruction to a controlled end of a valve assembly 502 of the transportation device; and the controlled end of the valve assembly 502 receives the control instruction sent by the upper computer 501, is switched on or off according to the control instruction, and drive flatbed truck assemblies 101 to move, so as to control the transportation device to move according to the theoretical moving speed.
The upper computer 501 may be arranged in a monitoring center of a fully-mechanized coal face, and a relationship between a hydraulic support controller 503 and a hydraulic support may be one-to-one or one-to-N. The hydraulic support controller 503 can control the hydraulic support to act according to a coal mining process, so the hydraulic support can determine an amount of medium needed by each hydraulic support cylinder at each moment. The integrated liquid supply system is a device configured for providing medium for the hydraulic support cylinder. A distance between adjacent support cylinders is known, and a rate at which the integrated liquid supply system provides medium for the hydraulic support can be determined. Therefore, a moving speed of the integrated liquid supply system can be determined according to the medium demand of each hydraulic support cylinder. When the moving speed of the integrated liquid supply system is determined, it is equal to determining the moving speed of the transportation device.
Preferably, the control instruction generated by the upper computer comprises a rotation speed value of the motor; and the motor in the valve assembly rotates according to the rotation speed value of the motor, and is capable of driving a pump body to extract a theoretical amount of medium from the integrated liquid supply system, the theoretical amount of medium is evenly distributed to a plurality of hydraulic motors, and a drive output shaft of the hydraulic motor drives a driving wheel to move at the theoretical moving speed. The upper computer is further configured for receiving a moving speed of a truck body sent by a speed sensor in the transportation device. If a difference between the moving speed and the theoretical moving speed exceeds a set threshold, the upper computer adjusts the control instruction to increase or decrease the rotation speed value of the motor, so that the difference between the moving speed of the transportation device and the theoretical moving speed is less than or equal to the set threshold. That is to say, the upper computer can determine the moving speed range of the integrated liquid supply system according to the information fed back by the hydraulic support controller. When the transportation device moves, the upper computer can detect the speed of the transportation device in real time; when it is found that the speed is no longer within the theoretical range, assuming that the speed exceeds 10% of the theoretical value or is lower than 10% of the theoretical value, the upper computer can further control the speed of the transportation device for adjustment. Preferably, when a variable frequency motor is selected as the motor in the valve assembly, the upper computer 501 can increase or decrease the rotation speed value of the motor by adjusting a running frequency of the motor.
Examples are given below for illustration:
Assuming that the transportation device needs to supply liquid for an i-th hydraulic support at the current moment, it is determined through the feedback information from the hydraulic support controller 503 that an amount of medium required by the i-th hydraulic support at the current moment is Qi, while a medium flow rate is Vi when the integrated liquid supply system outputs medium for the hydraulic support cylinder, then the moving speed of the transportation device should be zero from the current moment, because the transportation device needs to stop to provide medium for the i-th hydraulic support cylinder, and the stopping duration is that Ti = Qi/Vi. After providing medium for the i-th hydraulic support cylinder, the transportation device needs to move to a position where an (i+1)-th hydraulic support cylinder is located, a distance between two adjacent hydraulic support cylinders is L, and the moving speed of the transportation device is determined to be V preferably according to a historical experience value (the moving speed of the transportation device may also be determined according to a time node when the (i+1)-th hydraulic support needs to be provided with medium, for example, the transportation device needs to drive from a position of the i-th hydraulic support cylinder is located to the position where the (i+1)-th hydraulic support cylinder is located within a time T, and a driving speed can be determined according to the distance and time), a rotation speed of the driving wheel can be determined according to the moving speed V of the transportation device and a perimeter of the driving wheel, a rotation speed of the hydraulic motor can be determined according to the rotation speed of the driving wheel, and an amount of medium required by the hydraulic motor can be deduced from the rotation speed of the hydraulic motor. The sum of the amount of medium required by each hydraulic motor is the amount of medium required to be input to a medium converging point (no hydraulic support cylinder needs medium in this process), so that a working frequency of an emulsion pump can be determined, so that a working frequency of the variable frequency motor can be obtained. After a series of analysis, the upper computer can generate a control instruction, and send the control instruction to the controlled end of the valve assembly to control the transportation device to move according to the moving speed V. When the transportation device drives to the position where the (i+1)-th hydraulic support cylinder is located, the transportation device can stop to provide medium for the (i+1)-th hydraulic support cylinder, and the stopping duration can be the same as that when providing medium for the i-th hydraulic support cylinder, which will not be described in detail. In conclusion, the upper computer can control and adjust a running speed of the transportation device from the first hydraulic support to the last hydraulic support in real time, so as to enable the transportation device to meet the liquid supply demand of each hydraulic support. Meanwhile, because each flatbed truck assembly is driven by itself without being pulled and moved by the front flatbed truck assembly, rope breakage is avoided when going uphill, while when going downhill, the rotation of the driving wheel is restricted by the drive of the hydraulic motor, so that landslide can be avoided, and the safety and stability of the integrated liquid supply system during transportation are improved.
Embodiment 3
This embodiment provides an integrated liquid supply apparatus, comprising an integrated liquid supply system and the control system of the transportation device for the integrated liquid supply system according to any solution in Embodiment 2, wherein different components of the integrated liquid supply system are sequentially arranged on the truck bodies of different flatbed truck assemblies in the transportation device.
By controlling the moving speed of the transportation device through the control system, the integrated liquid supply system can be ensured to provide medium for each hydraulic support cylinder according to a set liquid supply demand. Meanwhile, because the moving process of the transportation device supplies liquid to the hydraulic motor through the integrated liquid supply system, and the drive output shaft of the hydraulic motor provides power for the driving wheel to drive the flatbed truck assemblies to move, the situations of rope breakage when going uphill and landslide when going downhill of the transportation device in the prior art are effectively avoided, and the transportation device can run safely even in a roadway with poor stability.
It should be finally noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than limiting the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skills in the art should understand that: he can still modify the technical solutions set forth by the above embodiments, or make equivalent substitutions to part of the technical features of them. However, these modifications or substitutions shall not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A transportation device for an integrated liquid supply system, comprising a plurality of sequentially connected flatbed truck assemblies, wherein each of the flatbed truck assemblies comprises:
a truck body, having a bearing face for bearing a component of the integrated liquid supply system;
a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly and a second end connected to a medium converging point; wherein, a controlled end of the valve assembly is configured for communicating and connecting with an upper computer to receive a control instruction sent by the upper computer and be switched on or off according to the control instruction;
a reversing valve, having a liquid inlet end connected to the medium converging point;
a hydraulic motor, mounted at a designated position on the truck body, having a first end and a second end respectively connected to a first end and a second end of the reversing valve, wherein the hydraulic motor is capable of adjusting a rotation direction and a rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; and
a transmission mechanism, arranged at a bottom portion of the truck body and comprising a driving wheel; wherein, a rotating shaft of the driving wheel is connected to the drive output shaft of the hydraulic motor, and the driving wheel is driven by the drive output shaft to rotate or stop, so as to drive the flatbed truck assemblies to move or stop.
2. The transportation device for the integrated liquid supply system according to claim 1, wherein the valve assembly comprises:
a motor, having a controlled end serving as the controlled end of the valve assembly and in communication connection with the upper computer; wherein, a rotation speed of the output shaft of the motor is corresponding to the control instruction;
a pump body, having a liquid inlet serving as the first end of the medium conveying path and connected to the medium outlet of the integrated liquid supply system, and having a driven end connected to the output shaft of the motor; wherein, the pump body extracts the medium from the medium outlet of the integrated liquid supply system under the drive of the motor; and
an unloading valve, having a liquid inlet connected to a liquid outlet of the pump body and a liquid outlet serving as the second end of the medium conveying path and connected to the medium converging point.
3. The transportation device for the integrated liquid supply system according to claim 2, wherein:
the motor is a variable frequency motor.
4. The transportation device for the integrated liquid supply system according to claim 3, further comprising a speed sensor:
the speed sensor being arranged on any one or more of the truck body, and configured for measuring a moving speed of the truck body and sending a measuring result to the upper computer.
5. The transportation device for the integrated liquid supply system according to any one of claims 1 to 4, wherein:
in the truck bodies of any two adjacent flatbed trucks, a first supporting plate extends from the first truck body, the first supporting plate is provided with a first mounting hole, and a second supporting plate extends from the second truck body, the second supporting plate is provided with a second mounting hole, the first supporting plate and the second supporting plate are arranged opposite to each other and the first supporting plate is located below the second supporting plate, and the first mounting hole and the second mounting hole are aligned and then connected through a locking piece.
6. A control system of a transportation device for an integrated liquid supply system, comprising the transportation device for the integrated liquid supply system and the upper computer according to any one of claims I to 5, wherein:
the upper computer is configured for communicating and connecting with a hydraulic support controller, acquiring a liquid supply parameter of the hydraulic support, obtaining a theoretical moving speed of the integrated liquid supply system according to the liquid supply parameter, generating a control instruction according to the theoretical moving speed and sending the control instruction to the controlled end of the valve assembly of the transportation device; and
the controlled end of the valve assembly receives the control instruction sent by the upper computer, and is switched on or off according to the control instruction, so as to control the transportation device to move according to the theoretical moving speed.
7. The control system of the transportation device for the integrated liquid supply system according to claim 6, wherein: the control instruction generated by the upper computer comprises a rotation speed value of the motor; and the motor in the valve assembly rotates according to the rotation speed value of the motor, and is capable of driving the pump body to extract a theoretical amount of medium from the integrated liquid supply system, the theoretical amount of medium is evenly distributed to a plurality of hydraulic motors, and the drive output shaft of the hydraulic motor drives the driving wheel to move at the theoretical moving speed.
8. The control system of the transportation device for the integrated liquid supply system according to claim 7, wherein:
the upper computer is further configured for receiving the moving speed of the truck body sent by the speed sensor in the transportation device; if a difference between the moving speed and the theoretical moving speed exceeds a set threshold, the upper computer adjusts the control instruction to increase or decrease the rotation speed value of the motor, so that the difference between the moving speed of the transportation device and the theoretical moving speed is less than or equal to the set threshold.
9. The control system of the transportation device for the integrated liquid supply system according to claim 8, wherein:
the upper computer increases or decreases the rotation speed value of the motor by adjusting a running frequency of the motor.
10. An integrated liquid supply apparatus, comprising an integrated liquid supply system, and the control system according to any one of claims 6 to 9, wherein different components of the integrated liquid supply system are sequentially arranged on the truck bodies of different flatbed truck assemblies in the transportation device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013129.5A CN110725712A (en) | 2019-10-23 | 2019-10-23 | Integrated liquid supply system transportation device, control system thereof and integrated liquid supply equipment |
| CN201911013129.5 | 2019-10-23 | ||
| PCT/CN2020/121922 WO2021078099A1 (en) | 2019-10-23 | 2020-10-19 | Transportation device for integrated liquid supply system, control system thereof, and integrated liquid supply apparatus |
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| Publication Number | Publication Date |
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| AU2020372454A1 true AU2020372454A1 (en) | 2022-05-05 |
| AU2020372454B2 AU2020372454B2 (en) | 2024-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| AU2020372454A Active AU2020372454B2 (en) | 2019-10-23 | 2020-10-19 | Transportation device for integrated liquid supply system, control system thereof, and integrated liquid supply apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110725712A (en) |
| AU (1) | AU2020372454B2 (en) |
| WO (1) | WO2021078099A1 (en) |
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| CN110725712A (en) * | 2019-10-23 | 2020-01-24 | 北京天地玛珂电液控制系统有限公司 | Integrated liquid supply system transportation device, control system thereof and integrated liquid supply equipment |
| CN113217483A (en) * | 2021-04-26 | 2021-08-06 | 北京天地玛珂电液控制系统有限公司 | Liquid tank and integrated liquid supply system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE402246B (en) * | 1976-10-21 | 1978-06-26 | Krongard Sven Olof | VEHICLE OR MOBILE WORKING MACHINE |
| DE19524189C2 (en) * | 1995-07-03 | 1997-07-17 | Brueninghaus Hydromatik Gmbh | Hydrostatic drive with downstream powershift transmission |
| US5682958A (en) * | 1995-09-18 | 1997-11-04 | Deere & Company | Rear wheel assist for a self-propelled scraper |
| JP2001248605A (en) * | 2000-03-06 | 2001-09-14 | Komatsu Ltd | Traveling control device for hydraulically driven traveling vehicle |
| CN203856503U (en) * | 2014-03-25 | 2014-10-01 | 安徽恒源煤电股份有限公司 | Mobile gangue warehouse hydraulic system |
| CN206172893U (en) * | 2016-11-03 | 2017-05-17 | 上海振华重工(集团)股份有限公司 | Single -row flatbed with flatbed combination application |
| CN110725712A (en) * | 2019-10-23 | 2020-01-24 | 北京天地玛珂电液控制系统有限公司 | Integrated liquid supply system transportation device, control system thereof and integrated liquid supply equipment |
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2019
- 2019-10-23 CN CN201911013129.5A patent/CN110725712A/en active Pending
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2020
- 2020-10-19 WO PCT/CN2020/121922 patent/WO2021078099A1/en active Application Filing
- 2020-10-19 AU AU2020372454A patent/AU2020372454B2/en active Active
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| WO2021078099A1 (en) | 2021-04-29 |
| CN110725712A (en) | 2020-01-24 |
| AU2020372454B2 (en) | 2024-01-18 |
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