CN212616118U - Transmission device capable of running at variable speed or constant speed and having external oil supply function and transmission system - Google Patents

Abstract

The utility model discloses a variable speed or constant speed operation area are to transmission and transmission system of outer fuel feeding function, include: a transmission case; a transmission assembly; the lubricating oil assembly is externally output and comprises an oil supply pipeline and a valve set, the oil supply pipeline is communicated with the system oil tank, the oil supply pipeline conveys lubricating oil to bearing bushes of a transmission side input end and a transmission side output end of the transmission assembly, and an oil return opening and an oil outlet of the oil supply pipeline convey the lubricating oil to the transmission side input end and the transmission side output end of a load outside the transmission box through oil pipes respectively to form a closed oil supply loop. The utility model discloses a traditional transmission system provides brand-new, convenient drive mode, can reduce peripheral equipment simultaneously, improve the system integration, promote the system reliability, improve traditional transmission overall efficiency, reduce the energy consumption.

Description

Transmission device capable of running at variable speed or constant speed and having external oil supply function and transmission system

Technical Field

The utility model relates to a power transmission system. More specifically, the present invention relates to a transmission and transmission system with variable or constant speed operation and external oil supply.

Background

The water feeding pump set of the electric boiler of the large-scale thermal power station mostly adopts a speed-regulating type hydraulic coupler transmission device so as to improve the efficiency of the pump set under the whole speed-regulating working condition, and the water feeding pump set is mainly used for starting the electric pump set and the electric water feeding pump set of a steam pump.

With the improvement of consciousness and attention of national and international society on energy conservation and emission reduction and carbon emission, and the wide popularization and grid-connected use of wind power solar energy, deep peak regulation must be carried out on large-scale thermal power and thermoelectricity to match wind power and solar energy non-adjustable power supply. Therefore, the hydraulic coupler transmission device is reduced along with the reduction of the rotating speed due to the speed regulation transmission efficiency of the hydraulic coupler transmission device while deep regulation is carried out, the comprehensive efficiency is relatively low, and the hydraulic coupler belongs to a slip loss type speed regulation device. In order to solve the problem, various existing schemes are adopted, but the efficiency is not improved to the maximum extent mainly aiming at the reformation of the liquid couple. The direct drive of the high-speed motor perfectly solves the problem, but the corresponding problems are two: firstly, the drive mode of the front pump is as follows: if the pipeline is accelerated, the investment is large, the whole pipeline is required to be transformed, and the construction period is prolonged; if the low-speed motor is used for driving independently, the energy consumption and the complexity of the system are increased, and the energy-saving, consumption-reducing and efficiency-increasing effects are contrary to the original purposes of energy saving, consumption reduction and efficiency increasing. The other problem is that the lubricating system of the water supply pump set is adopted, the original lubricating oil system of the water supply pump is undertaken by a liquid couple, but after the water supply pump is directly driven by a high-speed motor, the liquid couple is not available, and a thin oil station is needed to be added to solve the problem of the lubricating oil of the water supply pump set, but the position and the height of the thin oil station which need to be placed and the fire protection requirement bring great difficulty to the original set, and also bring great inconvenience to the construction.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model discloses it is still another purpose to provide a but variable speed or constant speed operation area are to transmission and transmission of outer fuel feeding function, for traditional transmission provides brand-new, convenient drive mode, can reduce peripheral equipment, improve the system integration simultaneously, the hoist system reliability, improve traditional transmission overall efficiency, reduce the energy consumption.

To achieve these objects and other advantages in accordance with the purpose of the invention, a transmission with an external oil supply function for variable or constant speed operation is provided, comprising:

the transmission case is provided with a cavity, a system oil tank is formed in the cavity, and lubricating oil is filled in the cavity;

the transmission assembly is positioned in the cavity and is provided with a transmission side input end and a transmission side output end;

the external lubricating oil output assembly is located in the cavity and comprises an oil supply pipeline and a valve set, the oil supply pipeline is communicated with the system oil tank, the oil supply pipeline conveys lubricating oil to bearing bushes at the input end and the output end of the transmission side of the transmission assembly, and an oil return opening and an oil outlet of the oil supply pipeline convey the lubricating oil to the input end and the output end of the transmission side of a load outside the transmission tank through oil pipes respectively to form a closed oil supply loop.

Preferably, the transmission assembly comprises an input shaft, an output shaft and a fixed speed gear set, and the joints of the input shaft, the output shaft and the transmission case form a transmission side input end and a transmission side output end of the transmission assembly.

Preferably, the transmission assembly comprises an input shaft, an output shaft and a speed change gear set, the speed change gear set is a speed increase gear set or a speed reduction gear set, and the connection positions of the input shaft, the output shaft and the transmission case form a transmission side input end and a transmission side output end of the transmission assembly.

Preferably, the valve group includes from the oil return opening to the oil outlet sets gradually inlet valve, oil pump, outlet valve, export check valve, oil spilling valve, total export check valve on the oil supply line, the oil pump includes by transmission assembly's constant speed gear train or change gear train pass through mechanical pump connecting part driven mechanical pump and/or motor drive's electric pump, and the quantity of mechanical pump and electric pump can all be one or more, the oil spilling valve pass through oil spilling valve oil tank interface with the system oil tank intercommunication, inlet valve pass through the oil tank sunction inlet with the system oil tank intercommunication.

Preferably, the inlet valve, the oil pump, the outlet valve and the outlet check valve form a set of regulating and controlling valves, the oil supply pipeline comprises two or more sets of regulating and controlling valves which are connected in parallel, and the two or more sets of regulating and controlling valves can operate independently or in parallel.

Preferably, the method further comprises the following steps:

the monitoring assembly comprises a detection module, a communication module, a control module and a terminal, wherein the detection component comprises a parameter sensor related to temperature, pressure, vibration and gas concentration, the detection module outputs detection parameters and sends the detection parameters to the terminal through the communication module, and the terminal passes through the control module to operate the valve group to adjust the parameters.

The transmission system with the function of supplying oil to the outside in variable-speed or constant-speed operation comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein a load is driven by the constant-speed or speed-regulating power machine through a transmission device, and an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop.

The transmission system with the function of supplying oil to the outside in variable-speed or constant-speed operation comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein one load is driven by the transmission device, the other load is driven coaxially at the same time, and an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load, and a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop.

The transmission system comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein the constant-speed or speed-regulating power machine drives one load through the transmission device, the other motor drives the other load, an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load, the motor and a transmission side input end and a transmission side output end of the other motor through oil pipes, and a closed oil supply loop is formed.

The utility model discloses at least, include following beneficial effect:

the utility model discloses equipment is simple, low cost, simplify the water feed pump group, improve water feed pump group operating efficiency, carry out system transformation to the water feed pump group under converter speed governing or the constant speed operation, be used for solving the system transmission after adopting the frequency conversion drive, the operation data control, protection and fuel feeding problem, from taking the steady voltage function, automatic oil temperature heating function and oil pressure control and protection, differential pressure monitoring and protection, oil temperature monitoring and protection, vibration control and protection (the axial of all equipment in the system, perpendicularly, horizontal vibration control) etc. multiple functions's local control and protection and remote monitoring and protection, and can realize remote communication and internet monitoring, functions such as control and protection.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a transmission according to the present invention in a speed reduction application;

FIG. 2 is a schematic structural view of a transmission according to the present invention in an up-speed application;

fig. 3 is a schematic structural view of a transmission according to the present invention (different from fig. 1) in a speed reduction application;

fig. 4 is a schematic structural view of a transmission according to the present invention (different from fig. 2) in an acceleration application;

fig. 5 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 6 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 7 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 8 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 9 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 10 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 11 is a front view of a transmission according to the present invention;

figure 12 is a side view of one embodiment of the transmission system of the present invention;

fig. 13 is a top view of one embodiment of the transmission system of the present invention;

fig. 14 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 15 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 16 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 17 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 18 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 19 is a schematic structural diagram of a technical solution of the transmission system of the present invention;

fig. 20 is a schematic structural view of a technical solution of the transmission system of the present invention;

fig. 21 is a schematic structural diagram of a technical solution of the transmission system of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

As shown in fig. 1-4 and 11-21, the present invention provides a transmission device with external oil supply function for variable speed or constant speed operation, which comprises:

the transmission case is an integrated case body and is provided with a cavity, a system oil tank 6 is formed in the cavity, lubricating oil is filled in the cavity, the lubricating oil is sufficient for circulating the lubricating oil of an oil supply pipeline, and heat can be taken away by friction heat of the bearing bush for cooling; the transmission case can be modified by adopting a hydraulic coupler, the transmission mode of the hydraulic coupler is that an oil medium between pump wheel turbines carries out energy transmission, and simultaneously the speed of the turbine end (output end) can be regulated by the opening degree of a scoop tube, the hydraulic coupler originally has an oil supply function, an auxiliary oil pump system (responsible for lubricating oil pressure guarantee during starting and stopping) connected with an external motor and a mechanical oil pump (responsible for working oil pressure guarantee of a system lubricating oil press during normal operation) connected with an internal gear are respectively arranged in the hydraulic coupler, two oil supply system main pipes are connected together to provide oil pressure for a whole pump set or a load set, an external oil pump can be connected externally to compensate the oil pressure (working oil pressure and lubricating oil pressure) of the existing oil system, the hydraulic coupler is modified into the transmission case, the pump wheel turbines in the hydraulic coupler are removed, and a diaphragm coupler or a tooth-shaped coupler is installed to connect the gear end and the output end, the original internal lubricating oil system is reserved, the working oil system is removed, and the external oil pump can be externally connected to compensate the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load;

a transmission assembly located in the cavity, wherein the transmission assembly may be an existing mechanical transmission structure, such as a gear transmission mechanism, a chain transmission mechanism, a belt transmission mechanism, and a worm gear transmission mechanism, without limitation, and a corresponding transmission assembly is selected according to an on-site working condition and a customer requirement, and a part of the transmission assembly is soaked in a lubricating oil, specifically, for example, when the transmission assembly is a gear transmission mechanism, the transmission assembly includes but is not limited to a speed change gear set, an input shaft, an output shaft, a gear bush, and a transmission shaft bush, wherein the gear bush and the transmission shaft bush are soaked in a lubricating oil, the transmission assembly has a transmission side input end and a transmission side output end, a part of the input shaft and the output shaft 4 of the transmission assembly extending out of the transmission case forms the transmission side input end and the transmission side output end, and the joints of the input shaft and the output shaft 4 of the transmission assembly and the transmission case, lubrication with lubricating oil is required;

an external lubricating oil output assembly which is located in the cavity and comprises an oil supply pipeline and a valve set, wherein the oil supply pipeline is communicated with the system oil tank 6 through a filter screen 15, the valve set comprises but is not limited to an existing inlet valve 9, an outlet valve 11, an oil pump 5, an oil pump motor 7, an oil overflow valve 14, a check valve and the like, the number and the connection sequence are not limited, a differential pressure filter screen, a system oil tank heater, an oil supply oil pressure detection, an oil temperature detection and a corresponding electric control system and other components are arranged in the system oil tank 6, the oil supply pipeline conveys lubricating oil to bearing bushes at a transmission side input end and a transmission side output end of the transmission assembly, an oil return port 1 and an oil outlet 2 of the oil supply pipeline respectively convey lubricating oil to the transmission side input end and the bearing bushes at the transmission side output end of a load outside the transmission tank, loads include, but are not limited to, electric machines, fans, water pumps, belts, compressors of any type, turbines, four-quadrant operation, mills, steam turbines, and the like.

In the prior art, hydraulic coupler in the factory building, the water feeding pump, the pre-pump, a motor, the transmission case is arranged compactly, a thin oil station (needing to be placed below 0m of the ground) needs to be arranged in a large space, the construction transformation difficulty is large, in the technical scheme, the transmission device does not need to be arranged to change the existing load (the water feeding pump, the pre-pump, the motor and the steam turbine) of the factory building, the existing lubricating oil pipeline is compatible, the hydraulic coupler occupies a large space, the construction speed is high, the later maintenance is simple, the capital construction cost (foundation pit excavation, ground pipeline construction and the like) can be saved for a small amount of the capital construction part, and the construction period is shortened by more than half a. The utility model discloses equipment is simple, low cost, simplify the feed pump group, improve feed pump group operating efficiency, carries out system reconstruction to the feed pump group under converter speed governing or the constant speed operation for solve system transmission, operation data control, protection and the fuel feeding problem after adopting the frequency conversion drive. The utility model discloses can be applied to the variable speed transmission occasion under the different kind condition, not receive the trade, not receive the place, not receive transmission power, not receive the drive ratio, not receive the transmission rotational speed, not receive voltage, not receive the restriction of electric current. The novel and convenient driving mode is provided for the traditional transmission system, and meanwhile, peripheral equipment can be reduced, system integration can be improved, system reliability can be improved, the overall efficiency of traditional transmission can be improved, and energy consumption can be reduced.

In another technical scheme, the transmission assembly comprises an input shaft, an output shaft 4 and a fixed speed gear set 3, wherein the connection between the input shaft, the output shaft 4 and the transmission case forms a transmission side input end and a transmission side output end of the transmission assembly, preferably a gear transmission mechanism, and the fixed speed gear set 3 is selected according to the requirement of a customer to ensure that the speed ratio is 1, so that the fixed speed operation is realized.

In another technical solution, the transmission assembly includes an input shaft, an output shaft 4, and a speed-changing gear set 3, the speed-changing gear set 3 is a speed-increasing gear set 3 or a speed-reducing gear set 3, the connection between the input shaft, the output shaft 4 and the transmission case forms a transmission-side input end and a transmission-side output end of the transmission assembly, preferably a gear transmission mechanism, the speed-changing gear set 3 is selected according to the customer requirement, so that the speed ratio is > 1 or < 1, thereby realizing the speed-changing operation, for example, when a frequency converter, a current transformer or a power supply shown in fig. 6-8 and 10 drives a motor to drive a load through the transmission device, the output speed can be increased through the speed-increasing gear set 3, and for example, when a high-frequency converter, a current transformer or a power supply shown in fig. 5 drives a high-speed motor to drive, also for example, when a frequency converter, inverter or power source as shown in fig. 9 drives an electric motor to drive a load through the transmission, the output speed can be reduced by the reduction gear set 3.

In another technical scheme, as shown in fig. 1 to 4, the valve set includes an inlet valve 9, an oil pump 5, an outlet valve 11, an outlet check valve 13, an oil overflow valve 14, and a total outlet check valve 12, which are sequentially disposed from the oil return port 1 to the oil outlet port 2 on the oil supply pipeline, the oil pump 5 includes a mechanical pump driven by the fixed speed gear set 3 or the variable speed gear set 3 of the transmission assembly through a mechanical pump connecting part 16 and/or an electric pump driven by the oil pump motor 7, the number of the mechanical pump and the electric pump may be one or more, the oil overflow valve 14 is communicated with the system oil tank 6 through an oil overflow valve oil tank interface 10, and the inlet valve 9 is communicated with the system oil tank 6 through a system oil tank suction port 8. The semi-closed oil supply loop of the thin oil station needs non-pressure oil return, and oil return under pressure cannot be achieved.

In another technical scheme, as shown in fig. 1 to 4, the inlet valve 9, the oil pump 5, the outlet valve 11, and the outlet check valve 13 form a set of control valves, the oil supply line includes two or more sets of control valves connected in parallel, and the plurality of sets of control valves can be operated independently or in parallel. The specific requirements can be customized according to customers, the equipment can be quickly replaced when damaged, the oil supply and return are prevented from being influenced, and the brand and the model of the component can be specified according to the requirements of the customers.

In another technical solution, the method further comprises:

the monitoring assembly comprises a detection module, a communication module, a control module and a terminal, wherein the detection component comprises a parameter sensor related to temperature, pressure, vibration and gas concentration, such as a pressure sensor, a vibration sensor, a temperature sensor and a gas concentration detection component, the detection module outputs detection parameters and transmits the detection parameters to the terminal, the terminal passes through the control module to operate the valve group so as to adjust parameters and increase the existing internet function of the terminal, and remote control is carried out through modes such as pictures, characters and tables. The monitoring component comprises a part which has but not limited to a pressure stabilizing function, an automatic oil temperature heating function, oil pressure monitoring, differential pressure monitoring, oil temperature monitoring, vibration monitoring (axial, vertical and horizontal vibration monitoring of the system) and other functions, can realize local monitoring and remote monitoring, and can realize functions of remote communication, internet monitoring and control and the like. The monitoring component realizes local monitoring and protection and remote monitoring and protection with multiple functions such as self-voltage stabilization function, automatic oil temperature heating function and oil pressure monitoring and protection, differential pressure monitoring and protection, oil temperature monitoring and protection, vibration monitoring and protection (axial, vertical and horizontal vibration monitoring of all equipment in the system) and the like, and can realize functions such as remote communication, internet monitoring, control and protection.

The transmission system with the function of supplying oil to the outside in variable-speed or constant-speed operation comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein a load is driven by the constant-speed or speed-regulating power machine through a transmission device, and an oil return port 1 and an oil outlet 2 of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop. The constant speed or speed regulating motor can be a frequency converter, a current transformer or a power supply in a topological form to drive a high-speed or ordinary-speed motor, as shown in fig. 8, the transmission system is applied to the application scene that a frequency converter, a current transformer or a power supply driving motor in any topological form (the motor rotating speed range is not limited, the motor can operate at 0 & ltrpm & gt-3000 or at rpm & gt-3000, the rated voltage and the rated current are not limited, the motor form comprises motors in any form of structures such as a synchronous motor, an asynchronous motor or a permanent magnet synchronous motor, a direct current motor, an alternating current motor and the like) drives loads in any form (such as fans, water pumps, belt conveyors, compressors in any form, turbines, four-quadrant operation types, mills and steam turbines) through the transmission device (speed increasing); the mode shown in fig. 21 is different from the mode shown in fig. 8 in that a transmission device (speed-up) is used for a direct-drive transmission system by modifying a gear box for a fluid coupling, a system oil tank is a fluid coupling and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the fluid coupling is detached, a diaphragm coupling or a tooth-shaped coupling is installed to connect a gear end and an output end, an original internal lubricating oil system is reserved, a working oil system is detached, and an external oil pump can be used for compensating the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load; as shown in fig. 20, the transmission system is applied to any topological form of frequency converter, converter or power driving motor (the motor rotation speed range is not limited, the motor can operate at 0rpm < 3000, the motor can operate at rpm > 3000, the rated voltage and rated current are not limited, the motor form comprises motors with any form of structure such as synchronous motor, asynchronous motor or permanent magnet synchronous motor, direct current motor, alternating current motor, etc.), and drives the water feeding pump of the unit with the generating capacity of more than 150MW through the transmission device (speed increasing), wherein the transmission device (speed increasing) is a hydraulic coupler modified gear box applied to the direct drive transmission system, the system oil tank is a hydraulic coupler self-contained and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the hydraulic coupler is removed and a diaphragm coupler or a tooth-shaped coupler is installed to connect the gear end and, the original internal lubricating oil system is reserved, the working oil system is removed, and the external oil pump can be externally connected to compensate the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load.

The transmission system with the function of supplying oil to the outside in the variable-speed or constant-speed operation mode comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein one load is driven by the transmission device, the other load is driven coaxially at the same time, and an oil return port 1 and an oil outlet 2 of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load, and a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop. The constant speed or speed regulating motor can be a topological frequency converter, a current transformer or a power supply driven motor, as shown in fig. 5, the transmission system is applied to any topological high-frequency converter, high-frequency current transformer or high-frequency power supply driven high-speed motor (the motor rotating speed range rpm is more than 3000, the rated voltage and the rated current are not limited, the motor form comprises motors with any form of structures such as synchronous motors, asynchronous motors or permanent magnet synchronous motors, direct current motors, alternating current motors and the like), the transmission device (speed reduction) drives the front pump, and the high-speed motor coaxially drives the water feeding pump of a machine set with the generating capacity of more than 150MW, the mode shown in fig. 14 is different from the mode shown in fig. 5 in that the transmission device (speed increase) is a hydraulic coupler modified gear box applied to a direct-drive transmission system, a system oil tank is a liquid couple self-carrying and is used, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the hydraulic coupler is disassembled and a diaphragm coupler or a tooth-shaped coupler is installed to connect a gear end and an output end, the original internal lubricating oil system is reserved, a working oil system is disassembled, and an external oil pump can be connected externally to compensate the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load; as shown in fig. 6, the transmission system is applied to any topological form of frequency converter, converter or power supply driving conventional motor (the motor rotation speed range is 0 < rpm is less than or equal to 3000, the rated voltage and rated current are not limited, the motor form includes motors with any form of structures such as synchronous motor, asynchronous motor or permanent magnet synchronous motor, direct current motor, alternating current motor and the like) to drive a water supply pump of a unit with the generating capacity of more than 150MW through the transmission device (speed increasing), and the motor coaxially drives the application scene of a front pump, the mode shown in fig. 16 is different from the mode shown in fig. 6 in that the transmission device (speed increasing) is a hydraulic coupler modified gear box applied to a water supply pump set, a system oil tank is a hydraulic coupler self-band and used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the hydraulic coupler is removed, and a diaphragm coupler, the original internal lubricating oil system is reserved, the working oil system is removed, and the external oil pump can be externally connected to compensate the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load; as shown in fig. 9, the transmission system is applied to any topological form of frequency converter, converter or power driven motor (the motor rotation speed range is not limited, the motor can operate at 0 < rpm ≤ 3000, the motor can operate at rpm > 3000, the rated voltage and rated current are not limited, the motor form comprises motors with any form of structure such as synchronous motor, asynchronous motor or permanent magnet synchronous motor, direct current motor, alternating current motor, etc.) to drive any form of load (fans, water pumps, belt machines, compressors of any form, turbines, four-quadrant operation machines, mills, steam turbines) through the transmission device (speed reduction), meanwhile, the motor coaxially drives another load in any form (a fan type, a water pump type, a belt machine type, a compressor type in any form, a turbine type, a four-quadrant operation type, a grinding machine and a steam turbine) and simultaneously applies the scene; the mode shown in fig. 15 is different from the mode shown in fig. 9 in that a transmission device (speed-up) is used for a direct-drive transmission system by modifying a gear box for a fluid coupling, a system oil tank is a fluid coupling and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, the interior of the fluid coupling can be connected with a direct-coupled coupler (a diaphragm or a tooth-shaped coupler) after a pump wheel turbine is modified, the pump wheel turbine in the fluid coupling is detached and the diaphragm coupler or the tooth-shaped coupler is installed to connect a gear end and an output end, the original internal lubricating oil system is reserved, a working oil system is detached, and the oil pressure of the existing lubricating oil system can be compensated by an external oil pump. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load; as shown in fig. 10, the transmission system is applied to any topological type of frequency converter, converter or power driven motor (the motor rotation speed range is not limited, and can be operated at 0 < rpm ≤ 3000, and can also be operated at rpm > 3000, and the rated voltage and rated current are not limited, and the motor form includes motors with any type of structure such as synchronous motor, asynchronous motor or permanent magnet synchronous motor, dc motor, ac motor, etc.), and drives any type of load (fan type, water pump type, belt machine type, any type of compressor type, turbine type, four-quadrant operation type, mill, steam turbine) through the transmission device (speed increasing), and the motor (the motor rotation speed range is not limited, and can be operated at 0 < rpm ≤ 3000, and can be operated at rpm > 3000, and the rated voltage, rated current, synchronous motor or asynchronous motor can be all limited) coaxially drives another load (fan type, current, fan type, or asynchronous motor) in any type, Water pumps, belt machines, compressors of any type, turbines, four-quadrant operation, mills, turbines); the mode shown in fig. 17 is different from the mode shown in fig. 10 in that a transmission device (speed-up) is used for a direct-drive transmission system by modifying a gear box for a fluid coupling, a system oil tank is a fluid coupling and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the fluid coupling is detached, a diaphragm coupling or a tooth-shaped coupling is installed to connect a gear end and an output end, an original internal lubricating oil system is reserved, a working oil system is detached, and an external oil pump can be used for compensating the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load.

The transmission system with the function of supplying oil to the outside in the variable-speed or constant-speed operation mode comprises a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein one load is driven by the transmission device, the other load is driven by the other motor, an oil return port 1 and an oil outlet 2 of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load, a transmission side input end and a transmission side output end of the motor and the other motor through oil pipes to form a closed oil supply loop. The constant speed or speed regulating motor can be a topological frequency converter, a current transformer or a power supply driving motor, as shown in fig. 7, the transmission system is applied to any topological frequency converter, current transformer or power supply driving conventional motor (the motor rotating speed range is more than 0 and less than 3000rpm, the motor can also run at rpm more than 3000, the rated voltage and the rated current are not limited, the motor form comprises synchronous motors, asynchronous motors or permanent magnet synchronous motors, direct current motors, alternating current motors and other motors with any structure), the machine set feed pump with the generating capacity of more than 150MW is driven by the transmission device (speed increasing), and the preposed pump motor drives the preposed pump independently; the mode shown in fig. 18 is different from the mode shown in fig. 7 in that a transmission device (speed-up) is used for a direct-drive transmission system by modifying a gear box for a fluid coupling, a system oil tank is a fluid coupling and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the fluid coupling is detached, a diaphragm coupling or a tooth-shaped coupling is installed to connect a gear end and an output end, an original internal lubricating oil system is reserved, a working oil system is detached, and an external oil pump can be used for compensating the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load; as shown in fig. 19, the transmission system is applied to an application scenario where a frequency converter, a current transformer or a power driven motor (the motor has an unlimited rotation speed range, can operate at 0 < rpm ≦ 3000, and can also operate at rpm > 3000, and the rated voltage and the rated current are not limited, and the motor form includes motors with any form of structure, such as a synchronous motor, an asynchronous motor, or a permanent magnet synchronous motor, a direct current motor, an alternating current motor, etc.) drives a load (such as a fan, a water pump, a belt conveyor, a compressor of any form, a turbine, a four-quadrant operation, a grinder, a steam turbine) of any form through the transmission device (speed increasing), and another motor drives another load (such as a fan, a water pump, a belt conveyor, a compressor of any form, a turbine, a four-quadrant operation, a grinder, a steam turbine) of any form separately, wherein, the transmission device (speed increasing) is used for a hydraulic coupler to transform a gear box and apply the gear box to a direct-drive transmission system, a system oil tank is a liquid couple and is used as a main oil pump and an auxiliary oil pump, an oil supply pipeline and a valve set are not shown, a pump wheel turbine in the hydraulic coupler is detached, a diaphragm coupler or a tooth-shaped coupler is installed to connect a gear end and an output end, an original internal lubricating oil system is reserved, a working oil system is detached, and an external oil pump can be connected externally to compensate the oil pressure of the existing lubricating oil system. At the moment, the speed of the motor is changed through a frequency converter (a current transformer) to regulate the speed of the load.

The existing application scenes are improved, for example, in the speed reduction application occasions, an output shaft of a high-speed motor (the rotating speed is higher than 3000rpm) drives a front pump (the rotating speed is lower than 3000rpm), and simultaneously a liquid couple (rated input 1490rpm, rated output 6050rpm and rated transmission power 5500KW) is coaxially driven to further drive a water feeding pump (rated rotating speed is 1490rpm, rated voltage is 6KV and rated power is 5500 KW).

As shown in fig. 5 or 9, demolish former feed pump motor and liquid idol in the new application scene, former feed pump motor is changed into high-speed motor, demolishs the liquid idol and with the motor antedisplacement, direct drive feed pump, adopts between high-speed motor and the leading pump the utility model discloses the device drive. A frequency conversion device is added to drive the high-speed motor, and the frequency conversion device can be of any topological structure. High-speed motor parameters: the rotating speed is 6050rpm of rated rotating speed of a 2-level motor, the rated voltage is 6KV, and the rated power is 5500 KW. The utility model discloses device parameter: rated input 6050rpm, rated output 1495rpm, rated power 250 KW. The input end of the high-speed motor is driven by a high-speed motor, the output end of the high-speed motor is connected with a load, and the load is a pre-pump of a feed pump of a power plant.

The utility model makes full use of the original space, has small change, keeps the integrity of the water supply pump unit to the maximum extent, increases the transformation feasibility of the existing unit, the thin oil station needs to be installed below zero meters of the factory building, the oil return needs to be natural non-pressure oil return, and the original unit has no facilities such as too large space installation thin oil station, oil supply pipeline and the like; the utility model has fast construction and saves construction period of 2 weeks (the average generating capacity of the power plant is 70% of the nominal generating capacity every day, for example, 30 ten thousand units, the average generating capacity of each hour is 21 ten thousand degrees of electricity, 504 ten thousand degrees of electricity every day, 0.3 yuan per degree of electricity, and the income brought to the power plant by the construction period of one day is about 150 ten thousand); the utility model saves the engineering amount, and about 30 thousands of units of water supply pump sets can save the engineering amount per month; the utility model has less later maintenance; the transmission efficiency is high, the energy-saving purpose is realized, and the operating efficiency of the water supply pump unit can be further improved.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (9)

1. Variable speed or constant speed operation take transmission of outer fuel feeding function, its characterized in that includes:

the transmission case is provided with a cavity, a system oil tank is formed in the cavity, and lubricating oil is filled in the cavity;

the transmission assembly is positioned in the cavity and is provided with a transmission side input end and a transmission side output end;

the external lubricating oil output assembly is located in the cavity and comprises an oil supply pipeline and a valve set, the oil supply pipeline is communicated with the system oil tank, the oil supply pipeline conveys lubricating oil to bearing bushes at the input end and the output end of the transmission side of the transmission assembly, and an oil return opening and an oil outlet of the oil supply pipeline convey the lubricating oil to the input end and the output end of the transmission side of a load outside the transmission tank through oil pipes respectively to form a closed oil supply loop.

2. The transmission with external oil supply function for variable or constant speed operation of claim 1, wherein the transmission assembly comprises an input shaft, an output shaft and a constant speed gear set, and the joints of the input shaft, the output shaft and the transmission box form a transmission side input end and a transmission side output end of the transmission assembly.

3. The transmission device with the function of supplying oil to the outside for variable-speed or constant-speed operation of claim 1, wherein the transmission assembly comprises an input shaft, an output shaft and a speed-changing gear set, the speed-changing gear set is an increasing gear set or a decreasing gear set, and the joints of the input shaft, the output shaft and the transmission box form a transmission-side input end and a transmission-side output end of the transmission assembly.

4. The transmission device with external oil supply function according to claim 1, wherein the valve set comprises an inlet valve, an oil pump, an outlet valve, an outlet check valve, an oil spill valve and a main outlet check valve, which are sequentially arranged on the oil supply pipeline from the oil return port to the oil outlet, the oil pump comprises a mechanical pump and/or a motor-driven electric pump driven by the fixed speed gear set or the variable speed gear set of the transmission assembly through a mechanical pump connecting component, the number of the mechanical pump and the number of the electric pumps can be one or more, the oil spill valve is communicated with the system oil tank through an oil spill valve oil tank interface, and the inlet valve is communicated with the system oil tank through an oil tank suction port.

5. The transmission with external oil supply function of claim 4, wherein the inlet valve, the oil pump, the outlet valve and the outlet check valve form a set of control valves, the oil supply pipeline comprises two or more sets of control valves connected in parallel, and the two or more sets of control valves can be operated independently or in parallel.

6. The transmission with external oil supply function for variable or constant speed operation according to claim 1, further comprising:

the monitoring assembly comprises a detection module, a communication module, a control module and a terminal, wherein the detection module comprises a parameter sensor related to temperature, pressure, vibration and gas concentration, the detection module outputs detection parameters and sends the detection parameters to the terminal through the communication module, and the terminal passes through the control module to operate the valve group to adjust the parameters.

7. A transmission system with a function of supplying oil to the outside in variable-speed or constant-speed operation is characterized by comprising a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein a load is driven by the transmission device according to any one of claims 1 to 6, and an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop.

8. A transmission system with a function of supplying oil to the outside in variable-speed or constant-speed operation is characterized by comprising a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein one load is driven by a transmission device according to any one of claims 1 to 6, and the other load is driven coaxially at the same time, and an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load and a transmission side input end and a transmission side output end of the motor through oil pipes to form a closed oil supply loop.

9. A transmission system with a function of supplying oil to the outside in variable-speed or constant-speed operation is characterized by comprising a constant-speed or speed-regulating motor and a constant-speed or speed-regulating power machine, wherein one load is driven by the transmission device according to any one of claims 1 to 6, the other load is driven by the other motor, an oil return port and an oil outlet of an oil supply pipeline of the transmission device respectively convey lubricating oil to the load, the other load, the motor and a transmission side input end and a transmission side output end of the other motor through oil pipes, and a closed oil supply loop is formed.

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