CN115675538B - A new energy monorail crane locomotive - Google Patents
A new energy monorail crane locomotive Download PDFInfo
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- CN115675538B CN115675538B CN202211347221.7A CN202211347221A CN115675538B CN 115675538 B CN115675538 B CN 115675538B CN 202211347221 A CN202211347221 A CN 202211347221A CN 115675538 B CN115675538 B CN 115675538B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本发明公开了一种新能源单轨吊机车，涉及单轨吊机车技术领域，新能源单轨吊机车包括行走轮、动力系统、能源装置和控制系统。其中，动力系统包括液压行走回路和直流防爆电动机，液压行走回路为包括变量柱塞泵和液压马达的静液压传动回路，直流防爆电动机连接变量柱塞泵以驱动其泵油，变量柱塞泵连接液压马达用以向其供油，液压马达连接行走轮以驱动其转动；能源装置包括防爆蓄电池和续能装置，防爆蓄电池连接直流防爆电动机以提供其运行所需的电能，续能装置连接防爆蓄电池以向其补充电能；控制系统与动力系统、能源装置信号连接。该新能源单轨吊机车牵引力大，爬坡能力强，续航里程长。
The present invention discloses a new energy monorail crane locomotive, which relates to the technical field of monorail crane locomotives. The new energy monorail crane locomotive includes a running wheel, a power system, an energy device and a control system. Among them, the power system includes a hydraulic running circuit and a DC explosion-proof motor. The hydraulic running circuit is a hydrostatic transmission circuit including a variable piston pump and a hydraulic motor. The DC explosion-proof motor is connected to the variable piston pump to drive it to pump oil. The variable piston pump is connected to the hydraulic motor to supply oil to it. The hydraulic motor is connected to the running wheel to drive it to rotate; the energy device includes an explosion-proof battery and an energy-sustaining device. The explosion-proof battery is connected to the DC explosion-proof motor to provide the electric energy required for its operation. The energy-sustaining device is connected to the explosion-proof battery to supplement the electric energy to it; the control system is connected to the power system and the energy device by signal. The new energy monorail crane locomotive has large traction, strong climbing ability and long cruising range.
Description
Technical Field
The invention relates to the technical field of monorail locomotives, in particular to a new energy monorail locomotive.
Background
Along with the development of the underground auxiliary transportation equipment technology of the coal mine, the auxiliary transportation system of the monorail crane is used as an advanced transportation mode, is not influenced by geological conditions of a roadway bottom plate, realizes the non-transshipment and long-distance direct transportation of underground personnel, equipment, materials and the like from a hoisting point to a using place, effectively improves the underground auxiliary transportation efficiency of a coal mine enterprise, and reduces the number of underground auxiliary personnel and the occurrence rate of transportation accidents, so that the auxiliary transportation system of the monorail crane is increasingly applied to the underground of the coal mine.
At present, the common monorail crane in China is mainly an explosion-proof diesel monorail crane, has the advantages of large climbing capacity, long endurance mileage, strong carrying capacity and the like, but the large explosion-proof diesel monorail crane has the problems of large noise, tail gas emission pollution and the like, is influenced by ventilation of a roadway when being applied in the roadway with a narrow underground section size of a coal mine, has remarkable noise and air pollution, and seriously influences the physical and psychological health of a monorail crane driver and related auxiliary personnel.
With the development of new energy, the explosion-proof special type explosion-proof storage battery monorail crane locomotive appears, but the problems of short endurance mileage, small climbing angle, explosion-proof storage battery volume, great self weight and the like exist, the transportation of middle and short distance personnel and light scattered auxiliary materials with the underground roadway inclination angle smaller than 15 degrees can be only satisfied, the material transportation in the large-inclination roadway can not be realized, the charging time of the explosion-proof special type explosion-proof storage battery is long, and the application and popularization of the explosion-proof special type explosion-proof storage battery monorail crane locomotive are severely restricted.
In summary, how to solve the current situation that the endurance mileage of the anti-explosion special type anti-explosion storage battery monorail crane locomotive is short is a problem to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide the new energy monorail crane locomotive, which greatly improves the endurance mileage of the explosion-proof storage battery monorail crane locomotive.
In order to achieve the above object, the present invention provides the following technical solutions:
a new energy monorail crane vehicle, comprising:
a walking wheel;
the power system comprises a hydraulic walking loop and a direct-current explosion-proof motor, wherein the hydraulic walking loop is a hydrostatic transmission loop comprising a variable plunger pump and a hydraulic motor, the direct-current explosion-proof motor is connected with the variable plunger pump to drive oil of the variable plunger pump, the variable plunger pump is connected with the hydraulic motor to supply oil to the hydraulic motor, and the hydraulic motor is connected with the walking wheel to drive the walking wheel to rotate;
The energy device comprises an explosion-proof storage battery and an energy continuing device, the explosion-proof storage battery is connected with the direct-current explosion-proof motor to provide electric energy required by the operation of the direct-current explosion-proof motor, and the energy continuing device is connected with the explosion-proof storage battery to supplement the electric energy;
and the control system is in signal connection with the power system and the energy device.
Preferably, the energy-continuing device is an explosion-proof diesel generator set and comprises an explosion-proof diesel engine and an explosion-proof generator, wherein the explosion-proof diesel engine is connected with the explosion-proof generator for driving the explosion-proof generator to generate electricity, and the explosion-proof generator is connected with the explosion-proof storage battery for charging the explosion-proof storage battery.
Preferably, the explosion-proof diesel engine is a high-pressure common rail injection type explosion-proof diesel engine.
Preferably, the explosion-proof generator is a compound direct current generator.
Preferably, the hydraulic motor is a low-speed high-torque radial plunger motor.
Preferably, the power system further comprises a transfer case, the direct-current explosion-proof motor is a high-speed direct-current explosion-proof motor, the high-speed direct-current explosion-proof motor is connected to an input hole of the transfer case, and the variable plunger pump is connected to a first output hole of the transfer case.
Preferably, the hydraulic walking loop further comprises a supplemental oil pump, the supplemental oil pump is connected to the second output hole of the transfer case, and an oil outlet of the supplemental oil pump is connected to an oil supplementing port of the variable plunger pump.
Preferably, the hydraulic walking loop further comprises a flushing valve group, and an oil inlet of the flushing valve group is connected with an auxiliary oil outlet of the variable plunger pump.
Preferably, the system further comprises a speed sensor, an inclination angle sensor and a pressure sensor, wherein the speed sensor is arranged at the top of the power system and is used for detecting the travelling speed of the monorail crane locomotive, the inclination angle sensor is arranged at the locomotive and is used for detecting the inclination angle of a road section where the inclination angle sensor is arranged, and the pressure sensor is arranged at the oil outlet of the variable plunger pump and is used for detecting the oil pressure of the hydraulic travelling loop;
The speed sensor, the inclination angle sensor and the pressure sensor are all in signal connection with the control system.
Preferably, the hydraulic walking loop further comprises a first electric control explosion-proof proportional pressure reducing valve and a second electric control explosion-proof proportional pressure reducing valve, the variable plunger pump is a bidirectional variable plunger pump, an oil inlet of the first electric control explosion-proof proportional pressure reducing valve and an oil inlet of the second electric control explosion-proof proportional pressure reducing valve are both connected with the oil supplementing pump, and a working oil port of the first electric control explosion-proof proportional pressure reducing valve and a working oil port of the second electric control explosion-proof proportional pressure reducing valve are both connected with a variable mechanism of the bidirectional variable plunger pump and used for controlling the oil flow direction of the bidirectional variable plunger pump.
Under the control of the control system, the energy-continuing device supplements the anti-explosion storage battery with electric energy, the anti-explosion storage battery supplies power for the direct-current anti-explosion motor, the direct-current anti-explosion motor drives the variable plunger pump to pump oil under the electric drive, so that oil is supplied to the hydraulic motor, and the travelling wheel is rotated under the drive of the hydraulic motor, so that the monorail crane can normally walk.
The energy-sustaining device charges the explosion-proof storage battery, so that the endurance mileage of the new energy monorail crane is greatly improved, the DC explosion-proof motor is adopted to supply power to the variable plunger pump, a DC-AC link is not needed in the middle, more energy is saved to improve the endurance mileage, and the hydrostatic transmission technology is used to effectively improve the driving traction and climbing capacity of the monorail crane, so that the monorail crane can run in a complex roadway for a long distance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a powertrain according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an explosion-proof diesel-electric generator set according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view of an embodiment of the present invention.
In fig. 1 to 4, reference numerals include:
1 is a travelling wheel;
2 is a power system, 21 is a direct-current explosion-proof motor, 22 is a hydraulic walking loop, 221 is a variable plunger pump, 222 is a hydraulic motor, 223 is a supplementary oil pump, 224 is a flushing valve group, 225 is a first auxiliary pump, 226 is a second auxiliary pump, and 23 is a transfer case;
3 is an energy device, 31 is an explosion-proof storage battery, 32 is an energy continuing device, 321 is an explosion-proof diesel engine, 3211 is a diesel engine control system, 3212 is a fuel tank, 3213 is an air filter, 3214 is an exhaust water tank, 3215 is an exhaust water pipe, 3216 is a water supplementing tank, 3217 is a diesel engine cooling water radiator, 3218 is a diesel engine intercooler, 322 is an explosion-proof generator, 3221 is a generator control system and 3222 is a starting motor;
4 is a control system, 5 is a speed sensor, 6 is an inclination sensor, 7 is a web, 8 is a bearing wheel, 9 is a pull rod, and 10 is a motor lifting beam.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims at providing a new energy monorail crane locomotive, which greatly improves the endurance mileage of the explosion-proof storage battery monorail crane locomotive.
Referring to fig. 1 to 3, fig. 1 is a schematic overall structure of an embodiment of the present invention, fig. 2 is a schematic structural diagram of a powertrain of an embodiment of the present invention, fig. 3 is a schematic structural diagram of an explosion-proof diesel generator set of an embodiment of the present invention, and fig. 4 is a schematic enlarged partial view of an embodiment of the present invention.
The invention provides a new energy monorail crane locomotive which comprises a travelling wheel 1, a power system 2, an energy device 3 and a control system 4.
The power system 2 comprises a hydraulic walking loop 22 and a direct-current explosion-proof motor 21, the hydraulic walking loop 22 is a hydrostatic transmission loop comprising a variable plunger pump 221 and a hydraulic motor 222, the direct-current explosion-proof motor 21 is connected with the variable plunger pump 221 to drive oil of the variable plunger pump 221, the variable plunger pump 221 is connected with the hydraulic motor 222 to supply oil to the variable plunger pump 222, the hydraulic motor 222 is connected with the walking wheel 1 to drive the walking wheel 1 to rotate, the energy device 3 comprises an explosion-proof storage battery 31 and an energy-continuing device 32, the explosion-proof storage battery 31 is connected with the direct-current explosion-proof motor 21 to provide electric energy required by operation of the explosion-proof storage battery 31 to supplement electric energy to the explosion-proof storage battery, and the control system 4 is in signal connection with the power system 2 and the energy-continuing device 3.
Specifically, under the control of the control system 4, the explosion-proof storage battery 31 outputs electric energy to drive the direct-current explosion-proof motor 21 to run, and the motor shaft of the direct-current explosion-proof motor 21 rotates under the drive of the electric energy, so that the variable plunger pump 221 is driven to pump oil, the oil is directly conveyed to the hydraulic motor 222 through a hydraulic pipeline, and the traveling wheel 1 is driven to rotate by the rotation of the hydraulic motor 222, so that the traveling of the new energy monorail crane is realized.
As shown in fig. 1, a plurality of travelling wheels 1 are arranged at the head, tail and middle parts of the new energy monorail crane, and each travelling wheel 1 can be controlled to rotate or stop under the action of a control system 4, so that the new energy monorail crane has different travelling states.
Preferably, the travelling wheel 1 is a friction wheel and the surface friction body is a structure made of modified polyurethane, and the travelling wheel 1 has the advantages of static resistance, flame resistance, high friction coefficient with the web 7, high tensile strength and long service life.
Preferably, the explosion-proof storage battery 31 is an explosion-proof lithium ion storage battery, which has long service life, is environment-friendly and safe, and can be any other type of storage battery as long as the storage battery can be charged and discharged. In addition, a plurality of explosion-proof storage batteries 31 can be arranged, part of the explosion-proof storage batteries 31 supply power for the new energy monorail crane locomotive when the new energy monorail crane locomotive works, and the rest of the explosion-proof storage batteries 31 are reserved.
The energy-sustaining device 32 is additionally arranged to charge the explosion-proof storage battery 31, and the energy-sustaining device 32 can be a special charger for the explosion-proof storage battery 31, a diesel engine driven generator or a gasoline engine driven generator and other devices, so long as various forms of energy sources can be converted into electric energy to charge the explosion-proof storage battery 31.
When the special charger for the anti-explosion storage battery 31 is adopted, the anti-explosion storage battery 31 can be charged when the new energy monorail crane is stopped for a long time, and when the new energy monorail crane works, the anti-explosion storage battery 31 can be charged when the new energy monorail crane works by adopting a diesel engine to drive a generator or a gasoline engine to drive the generator and the like. The additionally arranged energy continuing device 32 enables the new energy monorail crane to have more available energy, so that the cruising mileage is effectively improved.
Preferably, as shown in fig. 1, the explosion-proof storage battery 31 uses the motor lifting beam 10, so that a part of the variable plunger pump 221 can be branched to drive the motor lifting beam 10, the lifting device adopts a hydraulic hoist, the motor lifting beam 10 is also applicable to lifting materials, under the control of the control system 4, the free configuration of the lifting height can be realized according to the roadway height, and the control is accurate, stable in work, high in reliability and strong in safety, and of course, any lifting beam such as an oil cylinder lifting beam can be adopted as long as the objects can be lifted.
Preferably, the power system 2 is arranged in one bearing box, the energy-continuing device 32 is independently arranged in the other bearing box, the explosion-proof storage battery 31 is independently arranged in the other bearing box, the power system 2 and the energy-continuing device 32 are arranged on two sides of the explosion-proof storage battery 31 and are positioned at the position of the new energy monorail crane near the middle, so that the layout is reasonable, the hydraulic pipelines and the wire harnesses are convenient to arrange, and other arbitrary arrangement modes can be adopted as long as the functions can be realized.
In addition, when the explosion-proof storage battery 31 is an explosion-proof lithium ion storage battery, an acid-resistant insulating layer and a ventilation lining plate can be stuck between the explosion-proof storage battery 31 and the bottom and inner wall of the bearing box, and the thickness of the acid-resistant insulating layer enables the insulating resistance of the acid-resistant insulating layer to be not less than five megaohms, further, the explosion-proof storage battery 31 can be provided with a control system 4, the use condition of the explosion-proof storage battery 31 is monitored in real time to adjust the explosion-proof storage battery 31, so that the explosion-proof storage battery 31 is prevented from being used in a high-temperature unsafe environment, and the service life of the explosion-proof storage battery 31 is prolonged.
Further, the power system 2, the energy-continuing device 32 and the explosion-proof storage battery 31 are respectively and independently arranged in the respective bearing boxes to form a module, other parts can be divided into modules to be arranged and formed into a whole through assembly, such as an independent cab, a sensor carrier vehicle and the like, so that the assembly is convenient, the positions of the relatively independent modules can be arranged according to the positions shown in fig. 1, the modules are connected through the pull rod 9, the modules can be assembled automatically, and the modules can be positioned at any position as long as the functions of the new energy monorail crane can be realized.
The control system 4 can perform signal transmission with the power system 2 and the energy device 3, and the travelling driving process of the new energy monorail crane is realized under the control of the control system 4. The control system 4 may be a general control system 4 for controlling the above-mentioned devices or systems connected thereto, and the control system 4 may also include a central control system and sub-control systems for configuring the power system 2 and the energy device 3 respectively, where the sub-control systems all perform signal transmission with the general central control system so as to implement central control. Alternatively, the above-mentioned sub-control system may be a self-contained control system 4 of the power system 2, the energy device 3, or the like, or a control system 4 connected thereto and configured independently.
When the structure is used, when the electric quantity of the explosion-proof storage battery 31 is insufficient, the control system 4 can be used for controlling the energy-continuing device 32 to start to operate and charge the explosion-proof storage battery 31, so that the new energy monorail crane has enough electric quantity for the new energy monorail crane to use, and when the electric quantity of the explosion-proof storage battery 31 is sufficient, the control system 4 is used for controlling the energy-continuing device 32 to stop operating, so that the intelligent control of the allowable electric quantity of the explosion-proof storage battery 31 is realized, the overcharge or overdischarge of the explosion-proof storage battery 31 is prevented, and the service life of the explosion-proof storage battery 31 is effectively prolonged.
The variable plunger pump 221 is directly driven by the direct-current explosion-proof motor 21, the explosion-proof storage battery 31 is used for directly supplying power, an alternating-current-to-direct-current link is not needed in the middle, and when the new energy monorail crane is driven on a downhill section, the direct-current explosion-proof motor 21 is reversely towed, so that part of mechanical energy can be converted into electric energy to be stored, the new energy monorail crane is more energy-saving, and more energy can be saved under the condition of the same electric quantity to improve the endurance mileage.
The hydraulic walking loop 22 uses a hydrostatic transmission technology, so that the hydraulic walking loop 22 has the characteristic of high working pressure, and the driving traction and climbing capacity of the monorail crane are effectively improved, so that the monorail crane can run in a complex roadway for a long distance.
The variable plunger pump 221 has a pressure adjusting function, and can adjust and control the flow rate of the variable plunger pump 221 according to the load and the output pressure range, and under the control of the control system 4, intelligent control of the new energy monorail crane can be realized, and the functions of automatic driving control, anti-holding vehicle control, power matching, starting reliability, stable reversing of the monorail crane, stepless speed regulation and the like are realized.
Based on the above embodiment, the energy-continuing device 32 is an explosion-proof diesel generator set, and includes an explosion-proof diesel engine 321 and an explosion-proof generator 322, where the explosion-proof diesel engine 321 is connected with the explosion-proof generator 322 for driving the explosion-proof generator 322 to generate electricity, and the explosion-proof generator 322 is connected with the explosion-proof storage battery 31 for charging the explosion-proof storage battery.
The technology of the explosion-proof diesel generator set is mature, and the diesel generator has the advantages of high energy utilization rate, easy storage of diesel, quick response, easy maintenance and the like, so that the explosion-proof diesel generator set is preferably used as the energy continuing device 32, the explosion-proof generator 322 is connected with the explosion-proof diesel engine 321, the explosion-proof diesel engine 321 is flexibly connected or rigidly connected, mechanical energy generated by combusting diesel by the explosion-proof diesel engine 321 is absorbed by the explosion-proof generator 322, and finally electric energy is generated, so that the explosion-proof storage battery 31 is charged.
As shown in FIG. 3, a diesel engine control system 3211 and a generator control system 3221 are provided, which can be self-contained sub-control systems of structures such as an explosion-proof diesel engine 321 and an explosion-proof generator 322 or sub-control systems which are connected with a general central control system and are independently configured and used for controlling the operation of an explosion-proof diesel generator set, a fuel tank 3212 is communicated with a combustion chamber of the explosion-proof diesel engine 321 through an oil pipe and is used for providing fuel oil required by operation for the explosion-proof diesel engine 321, air is conveyed to the combustion chamber of the explosion-proof diesel engine 321 through a pipeline so as to enable the air to have enough oxygen to participate in combustion, an air filter 3213 is arranged at any position of the pipeline, namely an air inlet pipe connected with the air filter 3213 and an air outlet pipe are connected with an air outlet of the air filter 3213, dust and other impurities in the air are filtered out, a clean operation environment is provided for the explosion-proof diesel engine 321, the exhaust gas is generated after the explosion-proof diesel engine 321 burns, a tail gas outlet of the explosion-proof diesel engine 321 is connected with an air inlet of a tail gas water tank 3214 by a tail gas pipe 3215, the tail gas is cooled by the tail gas is discharged to the tail gas water tank 3214, the effect of cooling water in the tail gas water tank 3214 is prevented from high temperature, and the water is replaced by the water in the tail gas water tank 3216.
It should be noted that, the exhaust pipe 3215 is a double-layer sleeve, the inner pipe is used for circulating the exhaust, cooling water is filled between the outer pipe and the inner pipe, the exhaust is pre-cooled, and the surface temperature of the outer pipe is prevented from exceeding the preset temperature, for example, the surface temperature is ensured not to exceed 150 ℃.
The diesel engine cooling water radiator 3217 is connected with the explosion-proof diesel engine 321 through a pipeline, and after cooling the cooling water in the explosion-proof diesel engine 321, the cooling water is conveyed back to the explosion-proof diesel engine 321 through the pipeline, so that the cooling water is always at a lower temperature to keep a better cooling effect, and more heat generated by the explosion-proof diesel engine 321 is dissipated, so that the explosion-proof diesel engine 321 works in a lower temperature environment.
The diesel intercooler 3218 is connected to an air inlet of the explosion-proof diesel engine 321, two ports after the pipeline connection are correspondingly connected with flanges, and the like, and is used for cooling high-pressure air to be combusted, which is input into the explosion-proof diesel engine 321, so as to increase the dissolved oxygen of the air and enable fuel oil in the explosion-proof diesel engine 321 to be fully combusted, the starting motor 3222 is connected with the energy accumulator, and the starting motor 3222 drives the crankshaft of the explosion-proof diesel engine 321 to rotate under the driving of hydraulic pressure, so that the piston compresses combustible gas to spontaneous combustion, and the explosion-proof diesel engine 321 is started quickly. The series of settings enable the explosion-proof diesel generator set to run more safely and smoothly, and lay a foundation for intelligent control of the new energy monorail crane locomotive.
According to the actual auxiliary transportation working condition of the practical complex high-risk underground monorail crane, the ratio of the monorail crane gallery or downhill road section in the whole transportation route is fully considered, the ratio of heavy load operation and light load operation of the monorail crane in the whole transportation cycle is analyzed, preferably, the explosion-proof diesel engine generator set selects an explosion-proof diesel engine 321 with the power of only 1/4-1/2 of the installed power of the conventional explosion-proof diesel engine monorail crane, and the purposes of reducing the emission of the new energy monorail crane and improving the noise pollution of the monorail crane are achieved. Of course, the power selection of the explosion-proof diesel engine generator set is not limited to the above, and the power can be selected according to the roadway working condition actually applied to the new energy monorail crane in actual design, so that the purposes of energy conservation and emission reduction are achieved.
Based on the above embodiment, the explosion-proof diesel engine 321 is a high-pressure common rail injection type explosion-proof diesel engine.
Preferably, the high-pressure common rail injection type anti-explosion diesel engine is used for driving the anti-explosion generator 322, the high-pressure common rail injection type anti-explosion diesel engine can realize pressure establishment and separation of injection processes, the oil injection pressure is prevented from changing along with the rotation speed of the engine, the oil injection control is more flexible, the fluctuation of the oil injection pressure is small, the control precision of the oil injection pressure is higher, the mutual influence among all oil injection nozzles is small, the oil injection quantity is controlled accurately, and pre-injection and post-injection can be realized, so that the characteristic shape of oil injection is optimized, the noise of the diesel engine is reduced, and the emission quantity of waste gas is greatly reduced. Of course, any other type of explosion-proof diesel engine 321, such as a unit pump type explosion-proof diesel engine, may be used as long as the requirements of the setting and use standards are met.
Based on the above embodiment, the explosion-proof generator 322 is a compound direct current generator.
Preferably, when the compound direct current generator is used, if the load current increases, the series magnetomotive force of the compound direct current generator increases, the total magnetomotive force increases, and then the induced electromotive force is increased to compensate the demagnetization of the armature reaction and the voltage drop in the armature loop, so that the generator terminal voltage is kept basically constant within a certain range, and stable voltage can be provided for the explosion-proof storage battery 31, and the service life of the explosion-proof storage battery 31 is prolonged.
On the basis of any of the above embodiments, the hydraulic motor 222 is a low-speed high-torque radial plunger motor. Preferably, the hydraulic motor 222 adopts a low-speed high-torque radial plunger motor, so that the travelling wheel 1 can be directly driven without a speed reduction link, the mechanical speed reduction power loss is effectively avoided, and the travelling efficiency of the new energy monorail crane is improved.
On the basis of any one of the above embodiments, the power system 2 further includes a transfer case 23, the dc explosion-proof motor 21 is a high-speed dc explosion-proof motor, the high-speed dc explosion-proof motor is connected to an input hole of the transfer case 23, and the variable displacement pump 221 is connected to a first output hole of the transfer case 23.
Specifically, as shown in fig. 2, the high-speed dc explosion-proof motor is connected to the right input hole of the transfer case 23, the variable displacement pump 221 is mounted to the first output hole at the lower left side of the transfer case 23, and the transfer case 23 shown in fig. 2 only shows one input hole and one first output hole, but it is also possible to use a transfer case 23 with a plurality of input holes and a plurality of first output holes to match the energy requirement and the number of variable displacement pumps 221.
Preferably, the high-speed direct-current explosion-proof motor is selected, and compared with the traditional low-speed motor, the high-speed direct-current explosion-proof motor has higher working efficiency, and is matched with the traditional low-speed motor, the transfer case 23 is used for decelerating so as to reach the preset speed of the new energy monorail crane, the working efficiency is higher, the same allowable electric quantity of the explosion-proof storage battery 31, the new energy monorail crane using the high-speed direct-current explosion-proof motor has stronger power, larger starting torque and better speed regulation performance, stronger starting climbing capacity and longer endurance mileage. Of course, any other type of explosion-proof motor can be adopted, so long as the new energy monorail crane locomotive can be ensured to have higher working efficiency, larger starting torque and better speed regulation performance.
On the basis of the above embodiment, the hydraulic traveling circuit 22 further includes a supplemental oil pump 223, the supplemental oil pump 223 is connected to the second output hole of the transfer case 23, and the oil outlet of the supplemental oil pump 223 is connected to the supplemental oil port of the variable displacement pump 221.
Specifically, as shown in fig. 2, the oil compensating pump 223 is connected to the second output hole at the upper part of the transfer case 23, and of course, the positions of the oil compensating pump 223 and the variable displacement pump 221 may also be exchanged, at this time, the output hole at the upper part is the first output hole, the output hole at the lower part is the second output hole, so that the output power of the dc explosion-proof motor 21 may be respectively transmitted to the variable displacement pump 221 and the oil compensating pump 223 after being decelerated and split by the transfer case 23, and the oil outlet of the oil compensating pump 223 is connected to the oil compensating port of the variable displacement pump 221 through the oil compensating filter, so as to realize the external oil compensating of the variable displacement pump 221, so as to maintain the oil pressure of the hydraulic circuit 22, cool the oil compensating pump cools the hydraulic circuit 22, and avoid the damage of the variable displacement pump 221 caused by insufficient oil.
Further, the first auxiliary pump 225 is coaxially and serially connected with the oil supplementing pump 223, so that the oil can be supplied to each auxiliary functional loop of the hydraulic system of the new energy monorail crane, such as a brake release loop, a clamping loop, a driving switching loop, a lifting loop, an accumulator charging loop and the like, oil flowing out of the first auxiliary pump 225 can flow to the auxiliary functional loop through a filter and a one-way valve which are serially arranged, when the auxiliary functional loop needs to be supplied with oil, the control system 4 controls the electromagnet of the explosion-proof electromagnetic unloading overflow valve which is parallelly arranged with the one-way valve to obtain electricity, so that the control system 4 can control the oil supply of the auxiliary functional loop, and when the auxiliary functional loop does not need to supply oil, the control system 4 can control the electromagnet of the explosion-proof electromagnetic unloading overflow valve to lose electricity, so that the first auxiliary pump 225 is unloaded, and the energy-saving control of the new energy monorail crane is realized.
Furthermore, a mechanical pressure gauge can be additionally arranged to display the working pressure of the first auxiliary pump 225 in real time for the operation of the new energy monorail crane or the observation of maintenance personnel, or an auxiliary pump pressure sensor is additionally arranged to transmit the real-time working pressure value of the first auxiliary pump 225 to the control system 4 of the new energy monorail crane, so that a foundation is laid for realizing the automatic control and intelligent regulation of the power system 2 of the new energy monorail crane.
On the basis of any one of the above embodiments, the hydraulic traveling circuit 22 further includes a flushing valve group 224, and an oil inlet of the flushing valve group 224 is connected to an auxiliary oil outlet of the variable displacement pump 221.
Specifically, the oil inlet of the flushing valve group 224 is communicated with the auxiliary oil outlet of the variable plunger pump 221, so that part of oil flowing out of the variable plunger pump can flow into the flushing valve group 224 through the auxiliary oil outlet, the part of the separated hot oil dissipates heat, meanwhile, the content of impurities such as residual particles in the hydraulic oil of the hydrostatic transmission loop is reduced, and the service life of each component of the travelling loop of the new energy monorail crane can be prolonged.
Meanwhile, a second auxiliary pump 226 can be coaxially and serially connected with the variable plunger pump 221, and part of oil is split from the variable plunger pump 221 and supplied to a fan driving motor, an explosion-proof motor and an explosion-proof engine cooling pump driving motor of the hydraulic oil radiator of the new energy monorail crane, so that hydraulic driving of all airborne facilities of the new energy monorail crane is realized.
Preferably, as shown in fig. 2, the flushing valve group 224 is integrated at the working oil port of the variable displacement pump 221, so that the hydraulic pump assembly of the new energy monorail crane is more compact in structure and convenient for maintenance of a hydraulic system.
On the basis of any one of the embodiments, the hydraulic walking system further comprises a speed sensor 5, an inclination angle sensor 6 and a pressure sensor, wherein the speed sensor 5 is arranged at the top of the power system 2 and is used for detecting the travelling speed of the monorail crane, the inclination angle sensor 6 is arranged at the head of the monorail crane and is used for detecting the inclination angle of a road section where the monorail crane is located, the pressure sensor is arranged at the oil outlet of the variable plunger pump 221 and is used for detecting the oil pressure of the hydraulic walking loop 22, and the speed sensor 5, the inclination angle sensor 6 and the pressure sensor are in signal connection with the control system 4.
Specifically, as shown in fig. 1 and 4, the speed sensor 5 is located in a vehicle disposed at an upper portion of a carrying case where the power system 2 is located, and preferably, a magneto-electric speed sensor is used, which is suitable for use in a dark environment such as a mine tunnel. The tilt sensor 6 is disposed in a carriage at the upper part of the cab, and the carriage is a trolley moving along the rail web 7. The pressure sensor is used for detecting the pressure of the hydraulic walking loop 22 of the system, the hydraulic walking loop 22 is a closed oil way, the oil pressure of the whole hydraulic walking loop 22 is equal, the pressure sensor is arranged at any position of the hydraulic walking loop 22, preferably, the pressure sensor is arranged at an oil outlet of the variable plunger pump 221, the oil pressure of the hydraulic walking loop 22 can be detected more rapidly, the variable plunger pump 221 is stopped in time when the fault occurs, and the situation that the variable plunger pump 221 is dry-ground is effectively avoided.
As shown in figure 4, four bearing wheels 8 are symmetrically arranged on the upper part of a bracket of a bearing vehicle along a track web 7 to hang the bracket of a travelling wheel 1 on a track, double hydraulic motors are symmetrically arranged relative to the track web 7, hydraulic motors 222 are respectively sleeved on a bent frame through mounting rabbets of the double hydraulic motors, one end of the bent frame is hinged with the bracket through a mounting pin shaft, the other end of the bent frame is connected with a clamping cylinder connected with the travelling wheel 1, the travelling wheel 1 sleeved at the top end of the hydraulic motor 222 is tightly attached to the track web 7 under the action of the clamping cylinder, and the travelling wheel 1 rolls along the side surface of the web 7, so that the new energy monorail crane can travel.
The speed sensor 5 is used for detecting real-time running speed values of the new energy monorail crane, the inclination sensor 6 is used for detecting roadway inclination data when ascending and descending slopes, the pressure sensor is used for detecting oil pressure of the hydraulic walking loop 22, and the data can be transmitted to the control system 4 by the speed sensor 5, the inclination sensor 6 and the oil pressure sensor, so that the control system 4 can adjust the new energy monorail crane according to real-time working conditions.
For example, when descending a slope, according to the data transmitted to the control system 4 of the new energy monorail crane by the inclination sensor 6, the explosion-proof motor 21 is reversely towed by the controller operation and intelligent regulation control, so that the energy of the potential energy of the new energy monorail crane is recovered, the energy conservation and emission reduction of the new energy monorail crane are realized, the intelligent operation is carried out according to the detection data of the speed sensor 5 and the pressure sensor, the working mode of the new energy monorail crane is regulated independently, and the heavy load slow speed and light load fast autonomous regulation function of the new energy monorail crane is realized by adopting measures such as controlling the discharge amount of the explosion-proof storage battery 31 or automatically controlling the electromagnet of the throwing and driving electromagnetic reversing valve to lose electricity.
In summary, the control system 4 performs the intelligent control on the whole new energy monorail crane locomotive through the analysis and operation on the real-time data monitored by the sensor. Of course, not only the above three sensors but also any other type of sensor, such as an electric quantity detection sensor, may be mounted, so long as the operation data of the new energy monorail crane locomotive can be monitored. The intelligent regulation and intelligent control can be regulated and controlled according to the prior technical scheme.
On the basis of any one of the above embodiments, the hydraulic walking loop 22 further includes a first electrically controlled anti-explosion proportional pressure reducing valve and a second electrically controlled anti-explosion proportional pressure reducing valve, the variable plunger pump 221 is a bidirectional variable plunger pump, an oil inlet of the first electrically controlled anti-explosion proportional pressure reducing valve and an oil inlet of the second electrically controlled anti-explosion proportional pressure reducing valve are both connected with the oil supplementing pump 223, and a working oil port of the first electrically controlled anti-explosion proportional pressure reducing valve and a working oil port of the second electrically controlled anti-explosion proportional pressure reducing valve are both connected with a variable mechanism of the bidirectional variable plunger pump for controlling the oil flow direction of the bidirectional variable plunger pump.
Specifically, the oil supplementing pump 223 supplies oil to the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve, under the control of the control system 4, if the first electric control explosion-proof proportional pressure reducing valve is powered on, the oil pressure acts on the variable mechanism of the bidirectional variable plunger pump, so that the variable head of the bidirectional variable plunger pump rotates at a positive deflection angle, the oil flowing direction of the bidirectional variable plunger pump is from an A port to a B port, and if the second electric control explosion-proof proportional pressure reducing valve is powered on, the oil pressure acts on the variable mechanism of the bidirectional variable plunger pump, so that the variable head of the bidirectional variable plunger pump rotates at a negative deflection angle, the oil flowing direction of the bidirectional variable plunger pump is from the B port to the A port, and a rapid reversing function is realized.
Further, a shuttle valve can be arranged at the oil outlets of the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve, a pressure sensor is arranged at the oil outlet of the shuttle valve, and the pressure sensor is in signal connection with the control system 4. The shuttle valve selects the large value of the oil pressure output by the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve, and the pressure sensor reads the large oil pressure and transmits the oil pressure signal to the control system 4, so that the control system 4 can control the bidirectional variable plunger pump according to the actual condition of the learning variable mechanism, namely the working condition of the bidirectional variable plunger pump.
Furthermore, a reversing valve can be connected between the first electric control explosion-proof proportional pressure reducing valve and the bidirectional variable plunger pump, and between the second electric control explosion-proof proportional pressure reducing valve and the bidirectional variable plunger pump. When the new energy monorail crane is stopped or the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve are in failure, the oil inlet of the reversing valve is communicated with the oil outlet, so that the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve can be unloaded, the bidirectional variable plunger pump is prevented from being uselessly output, and abnormal walking phenomenon is avoided.
As shown in FIG. 1, the control system 4 is arranged in a cab, and two cabs can be respectively arranged at the head part and the tail part of the new energy monorail crane, so that the reversing control is convenient.
The terms "upper portion" and "lower portion" and the terms "upper, lower, left, and right" are defined below based on the drawings of the specification.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The new energy monorail crane provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. The utility model provides a new forms of energy monorail crane car which characterized in that includes:
A travelling wheel (1);
The power system (2) comprises a hydraulic walking loop (22) and a direct-current explosion-proof motor (21), wherein the hydraulic walking loop (22) is a hydrostatic transmission loop comprising a variable plunger pump (221) and a hydraulic motor (222), the direct-current explosion-proof motor (21) is connected with the variable plunger pump (221) to drive oil of the variable plunger pump, the variable plunger pump (221) is connected with the hydraulic motor (222) to supply oil to the hydraulic motor, and the hydraulic motor (222) is connected with the walking wheel (1) to drive the walking wheel (1) to rotate;
The energy device (3) comprises an explosion-proof storage battery (31) and an energy continuing device (32), wherein the explosion-proof storage battery (31) is connected with the direct-current explosion-proof motor (21) to provide electric energy required by the operation of the direct-current explosion-proof motor, and the energy continuing device (32) is connected with the explosion-proof storage battery (31) to supplement the electric energy;
The control system (4) is in signal connection with the power system (2) and the energy device (3);
The power system (2) further comprises a transfer case (23), the direct-current explosion-proof motor (21) is a high-speed direct-current explosion-proof motor, the high-speed direct-current explosion-proof motor is connected to an input hole of the transfer case (23), and the variable plunger pump (221) is connected to a first output hole of the transfer case (23);
The hydraulic walking loop (22) further comprises a supplemental oil pump (223), the supplemental oil pump (223) is connected to a second output hole of the transfer case (23), and an oil outlet of the supplemental oil pump (223) is connected to a supplemental oil port of the variable plunger pump (221);
The hydraulic walking loop (22) further comprises a first electric control explosion-proof proportional pressure reducing valve and a second electric control explosion-proof proportional pressure reducing valve, the variable plunger pump (221) is a bidirectional variable plunger pump, an oil inlet of the first electric control explosion-proof proportional pressure reducing valve and an oil inlet of the second electric control explosion-proof proportional pressure reducing valve are both connected with the oil supplementing pump (223), and a working oil port of the first electric control explosion-proof proportional pressure reducing valve and a working oil port of the second electric control explosion-proof proportional pressure reducing valve are both connected with a variable mechanism of the bidirectional variable plunger pump and are used for controlling the oil flow direction of the bidirectional variable plunger pump;
A shuttle valve is arranged at the oil outlets of the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve, a pressure sensor is arranged at the oil outlet of the shuttle valve, and the pressure sensor is in signal connection with the control system (4);
a reversing valve is connected between the first electric control explosion-proof proportional pressure reducing valve and the bidirectional variable plunger pump, and between the second electric control explosion-proof proportional pressure reducing valve and the bidirectional variable plunger pump;
when the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve control the bidirectional variable plunger pump, an oil inlet of the reversing valve is communicated with a working oil port, and when the new energy monorail crane is stopped or the first electric control explosion-proof proportional pressure reducing valve and the second electric control explosion-proof proportional pressure reducing valve are in failure, an oil inlet of the reversing valve is communicated with an oil outlet.
2. The new energy monorail crane locomotive according to claim 1, wherein the energy-continuing device (32) is an explosion-proof diesel generator set and comprises an explosion-proof diesel engine (321) and an explosion-proof generator (322), the explosion-proof diesel engine (321) is connected with the explosion-proof generator (322) for driving the explosion-proof generator (322) to generate electricity, and the explosion-proof generator (322) is connected with the explosion-proof storage battery (31) for charging the explosion-proof storage battery.
3. The new energy monorail crane locomotive according to claim 2, characterized in that the explosion-proof diesel engine (321) is a high-pressure common rail injection type explosion-proof diesel engine.
4. The new energy monorail crane locomotive of claim 2, wherein the explosion-proof generator (322) is a compound direct current generator.
5. The new energy monorail crane vehicle of any one of claims 1 to 4, characterized in that the hydraulic motor (222) is a low speed high torque radial plunger motor.
6. The new energy monorail crane vehicle according to any one of claims 1 to 4, characterized in that the hydraulic travelling circuit (22) further comprises a flushing valve group (224), an oil inlet of the flushing valve group (224) being connected to an auxiliary oil outlet of the variable displacement pump (221).
7. The new energy monorail crane vehicle according to any one of claims 1 to 4, further comprising a speed sensor (5), an inclination sensor (6) and a pressure sensor, wherein the speed sensor (5) is arranged at the top of the power system (2) and is used for detecting the travelling speed of the monorail crane vehicle, the inclination sensor (6) is arranged at the vehicle head and is used for detecting the inclination of a road section where the monorail crane vehicle is positioned, and the pressure sensor is arranged at the oil outlet of the variable plunger pump (221) and is used for detecting the oil pressure of the hydraulic travelling loop (22);
The speed sensor (5), the inclination angle sensor (6) and the pressure sensor are all in signal connection with the control system (4).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201587407U (en) * | 2009-12-15 | 2010-09-22 | 肖公平 | Cableway single-power hydraulic station adopting reducing valve for speed regulation |
| CN205632482U (en) * | 2016-05-10 | 2016-10-12 | 常州科研试制中心有限公司 | Monorail crane with explosion -proof diesel engine |
| CN114852852A (en) * | 2022-05-25 | 2022-08-05 | 徐州徐工基础工程机械有限公司 | Multi-drive group control hybrid power monorail crane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19925507B4 (en) * | 1999-06-04 | 2006-08-10 | Rag Ag | Device for transporting heavy loads on site in underground mining and tunneling |
| CN214450916U (en) * | 2021-03-25 | 2021-10-22 | 徐州立人单轨运输装备有限公司 | Hybrid power monorail crane vehicle |
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- 2022-10-31 CN CN202211347221.7A patent/CN115675538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201587407U (en) * | 2009-12-15 | 2010-09-22 | 肖公平 | Cableway single-power hydraulic station adopting reducing valve for speed regulation |
| CN205632482U (en) * | 2016-05-10 | 2016-10-12 | 常州科研试制中心有限公司 | Monorail crane with explosion -proof diesel engine |
| CN114852852A (en) * | 2022-05-25 | 2022-08-05 | 徐州徐工基础工程机械有限公司 | Multi-drive group control hybrid power monorail crane |
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