CN219139751U - Moment-limiting type hydraulic coupler for engineering - Google Patents
Moment-limiting type hydraulic coupler for engineering Download PDFInfo
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- CN219139751U CN219139751U CN202320052450.XU CN202320052450U CN219139751U CN 219139751 U CN219139751 U CN 219139751U CN 202320052450 U CN202320052450 U CN 202320052450U CN 219139751 U CN219139751 U CN 219139751U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a torque-limiting type hydraulic coupler for engineering, which comprises an active coupling, a quincuncial elastic coupling, a supporting connecting seat assembly, a torque-limiting type hydraulic coupler rotor and a diaphragm coupling, wherein the active coupling is connected with the quincuncial elastic coupling; one end of the driving coupling is connected with a flywheel of the prime motor, the other end of the driving coupling is connected with a torque-limiting fluid coupler rotor through a quincuncial elastic coupling, the torque-limiting fluid coupler rotor is positioned in and supported by the supporting connecting seat assembly, and the torque-limiting fluid coupler rotor is connected with the working machine through a diaphragm coupling; the torque-limiting type hydraulic coupler rotor comprises a rear auxiliary cavity, a main shaft, an oil filling plug, a pump wheel, a turbine, a shell and a fusible plug, wherein the quincuncial elastic coupler is connected with the rear auxiliary cavity, and the rear auxiliary cavity, the pump wheel, the turbine and the shell are sequentially sleeved on the periphery of the front section of the main shaft. The device is easy to install and has higher installation precision; the centrifugal force generated by unbalance amount during rotor rotation is reduced, and the reliability and operation safety of the power unit are improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic couplers, in particular to a torque-limiting hydraulic coupler for engineering.
Background
With the development of national economy and the increasing requirements of energy conservation and emission reduction, most of engineering equipment for field operations such as solid materials, crushing, transmission and the like adopt a fuel engine (diesel engine) to drive, in order to better match the fuel engine (diesel engine) with a working machine, the influences of the fuel engine (diesel engine) and the load flushing are improved, and the hydraulic coupler is commonly used for transmitting power, and the hydraulic coupler generally comprises two types of torque-limiting hydraulic couplers and liquid-filling type hydraulic couplers. After the hydraulic coupler is matched, the common and main working conditions of the working machine can be in the high-efficiency area of the fuel engine (diesel engine) and the starting performance can be improved.
When the torque-limiting hydraulic coupler is adopted, the driving end of the torque-limiting hydraulic coupler is connected with a flywheel of a fuel engine (diesel engine) by a tooth-type high-elastic coupling, and the driven end of the torque-limiting hydraulic coupler is arranged on a shaft extension of a working machine (speed reducer), but the torque-limiting hydraulic coupler has the defects of poor installation precision, large unit vibration and easiness in oil leakage.
When the liquid-filled hydraulic coupler is adopted, the hydraulic coupler is more complex, and comprises a box body, an oil pump, a pipeline, a cooler, a valve, an instrument and other oil systems, and is connected with the flywheel of a fuel engine (diesel engine) and the shaft extension of a working machine (speed reducer) by using an elastic coupling.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a torque-limiting hydraulic coupler for engineering.
The utility model is realized by the following technical scheme: the torque-limiting hydraulic coupler for engineering is arranged between a prime motor and a working machine and comprises an active coupling, a quincuncial elastic coupling, a supporting connection seat assembly, a torque-limiting hydraulic coupler rotor and a diaphragm coupling; one end of the driving coupling is connected with a flywheel of the prime motor, the other end of the driving coupling is connected with the torque-limiting type fluid coupling rotor through the quincuncial elastic coupling, the torque-limiting type fluid coupling rotor is positioned in the supporting connecting seat assembly and supported by the supporting connecting seat assembly, and the torque-limiting type fluid coupling rotor is connected with the working machine coupling through the diaphragm coupling; the torque-limiting type hydraulic coupler rotor comprises a rear auxiliary cavity, a main shaft, an oil filling plug, a pump wheel, a turbine, a shell and a fusible plug, wherein the quincuncial elastic coupler is connected with the rear auxiliary cavity, the pump wheel, the turbine and the shell are sequentially sleeved at the periphery of the front section of the main shaft, the outer end of the rear auxiliary cavity is connected with the pump wheel, the outer end of the pump wheel is connected with the shell, the turbine is positioned in a cavity on the inner side of the shell and is parallel to and symmetrically arranged with the pump wheel, the inner side of the turbine is fixed on the periphery of the main shaft, a plurality of blades for stirring liquid flow are arranged on the turbine and the pump wheel, and a working cavity for working fluid to flow is formed between the pump wheel and the turbine; one end of the supporting connecting seat component is connected with the prime motor shell, and the other end of the supporting connecting seat component is sleeved at the periphery of the rear section of the main shaft; the rear section of the main shaft is connected with a working machine through the diaphragm coupler and the working machine coupler; an oil injection channel and the oil injection plug for sealing the oil injection channel are arranged above the pump wheel, and the fusible plug is arranged above the shell; the inner cavity of the pump wheel is communicated with the inner cavity of the rear auxiliary cavity, the outer edge outlet of the pump wheel is communicated with the outer edge inlet of the turbine, and the inner edge inlet of the turbine is communicated with the inner edge outlet of the pump wheel; the supporting connecting seat assembly comprises a connecting seat, a supporting protective cover and a bearing, one end of the connecting seat is fixedly connected with the prime motor shell, the other end of the connecting seat is connected with the supporting protective cover, and the side wall of the other end of the supporting protective cover is sleeved on the periphery of the rear section of the main shaft through the bearing.
The prime motor shell of the device is connected with the connecting seat, so that the device is easy to install and has higher installation precision, and the centrifugal force generated by unbalance when the rotor of the torque-limiting type hydraulic coupler rotates is reduced, so that the device runs stably; the torque-limiting type fluid coupler rotor can play a role in power transmission by filling a certain amount of working fluid.
The plum blossom type elastic coupling comprises a plum blossom type elastic block and a driven coupling, wherein the plum blossom type elastic block is arranged on a tooth claw of the driving coupling, and the tooth claw of the driven coupling is matched with the plum blossom type elastic block.
The diaphragm coupler comprises an output coupler and a diaphragm, the output coupler is sleeved on the periphery of the rear section of the main shaft and is fixed with the main shaft, the output coupler is fixed with the working machine coupler through bolts, and the diaphragm is clamped between the output coupler and the working machine coupler.
The end face of the connecting seat is provided with a plurality of ventilation windows, and the end face and the periphery of the supporting protective cover are respectively provided with a plurality of ventilation windows. The ventilation window is convenient for air circulation, and when the torque limiting type fluid coupling rotor rotates, air can enter from two end surfaces and flow out from the outer circle, so that the heat radiation capability of the air is enhanced, and the torque limiting type fluid coupling is ensured to be in a normal working temperature range.
The active coupling is a coupling formed by casting aluminum alloy.
The working fluid adopts mineral oil, and the viscosity mu=32 mm of the mineral oil 2 S, severe γ=860 kg/m 3 The flash point is more than 180 ℃ and the condensation point is less than-10 ℃.
The mineral oil adopts hydraulic transmission oil or No. 32 turbine oil.
Compared with the prior art, the utility model has the advantages that:
1) The motor shell is connected with the connecting seat in a mounting mode, so that the torque-limiting type hydraulic coupler rotor is easy to mount and connect with the motor, the mounting precision is easy to ensure, and the mounting precision is higher; therefore, the centrifugal force generated by unbalance amount when the rotor of the torque-limiting type hydraulic coupler rotates is reduced, and the tissue operation is stable.
2) The active coupling is cast by aluminum alloy, has lighter weight and easy forming, and reduces the unbalance of the connecting piece, thereby reducing the centrifugal force generated by the unbalance during rotation and reducing the radial dynamic load on the prime motor.
3) The torque-limiting hydraulic coupler has wider working rotation speed and good low-speed overload protection, and when the prime motor starts to idle speed, the torque-limiting hydraulic coupler transmits lower torque, so that the prime motor can run at idle speed for a corresponding time, and the prime motor can start smoothly and carry out a working rotation speed region; when the prime motor is reduced to the lowest working rotation speed due to overload, the torque-limiting hydraulic coupler can play a role in overload protection, so that the prime motor is protected from flameout and shutdown.
4) The supporting connecting seat component and the supporting torque-limiting type hydraulic coupler rotor are adopted, so that the influence of dynamic load generated by the weight and rotation of the torque-limiting type hydraulic coupler rotor on a prime motor and a working machine is greatly reduced, and the vibration value of a unit is reduced. The reliability and the operation safety of the power unit are improved.
5) The diaphragm coupler is connected with the working machine, so that the diaphragm coupler has higher installation precision, less accumulation and strong torque transmission capability; is especially suitable for being matched with engineering machinery equipment which adopts a fuel engine (diesel engine) as power for crushing, material conveying, field operation and the like.
Drawings
FIG. 1 is a schematic view of a structure of an embodiment of the present utility model mated with a prime mover and a work machine;
fig. 2 is a schematic structural diagram of an embodiment of the present utility model.
The meaning of the reference numerals in the figures: 1. an active coupling; 2. a plum blossom shaped elastic block; 3. a driven coupling; 4. a connecting seat; 5. supporting the protective cover; 6. a rear auxiliary cavity; 7. a main shaft; 8. an oil filling plug; 9. a pump wheel; 10. a turbine; 11. a housing; 12. a fusible plug; 13. a bearing; 14. an output coupling; 15. a membrane; 16. a working machine coupling; 17. a prime mover; 18. a torque limiting hydraulic coupler for engineering; 19. a working machine; 20. a flywheel; 21. a prime mover housing; 22. quincuncial elastic coupling; 23. a diaphragm coupling; A. b, C, D are four louvers, respectively, supporting the connector assembly.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and detailed description.
Examples
Referring to fig. 1 to 2, a torque limiting hydraulic coupler for engineering is installed between a prime mover 17 and a working machine 19, and comprises an active coupling 1, a quincuncial elastic coupling 22, a supporting connection seat assembly, a torque limiting hydraulic coupler rotor and a diaphragm coupling 23; one end of the driving coupling 1 is connected with a flywheel 20 of the prime motor 17, the other end of the driving coupling is connected with a torque-limiting type hydraulic coupler rotor through a quincuncial elastic coupling 22, the torque-limiting type hydraulic coupler rotor is positioned in and supported by the supporting connection seat assembly, and the torque-limiting type hydraulic coupler rotor is connected with the working machine coupling 16 through a diaphragm coupling 23; the torque-limiting type fluid coupling rotor comprises a rear auxiliary cavity 6, a main shaft 7, an oil filling plug 8, a pump wheel 9, a turbine 10, a shell 11 and a fusible plug 12, wherein a quincuncial elastic coupling 22 is connected with the rear auxiliary cavity 6, the pump wheel 9, the turbine 10 and the shell 11 are sequentially sleeved at the periphery of the front section of the main shaft 7, the outer end of the rear auxiliary cavity 6 is connected with the pump wheel 9, the outer end of the pump wheel 9 is connected with the shell 11, the turbine 10 is positioned in a cavity on the inner side of the shell 11 and is parallel to and symmetrically arranged with the pump wheel 9, the inner side of the turbine 10 is fixed on the periphery of the main shaft 7, a plurality of blades for stirring fluid flow are arranged on the turbine 10 and the pump wheel 9, and a working cavity for working fluid to flow is formed between the pump wheel 9 and the turbine 10; one end of the supporting connecting seat assembly is connected with the prime motor shell 21, and the other end of the supporting connecting seat assembly is sleeved at the periphery of the rear section of the main shaft 7; the rear section of the main shaft 7 is connected with a working machine 19 through a diaphragm coupler 23 and a working machine coupler 16; an oil injection channel and an oil injection plug 8 for sealing the oil injection channel are arranged above the pump wheel 9, and a fusible plug 12 is arranged above the shell; the inner cavity of the pump wheel 9 is communicated with the inner cavity of the rear auxiliary cavity 6, the outlet at the outer edge of the pump wheel 9 is communicated with the inlet at the outer edge of the turbine 10, and the inlet at the inner edge of the turbine 10 is communicated with the outlet at the inner edge of the pump wheel 9; the supporting connection seat assembly comprises a connection seat 4, a supporting protection cover 5 and a bearing 13, one end of the connection seat 4 is fixedly connected with a prime motor shell 21, the other end of the connection seat is connected with the supporting protection cover 5, and the side wall of the other end of the supporting protection cover 5 is sleeved on the periphery of the rear section of the main shaft 7 through the bearing 13.
The prime motor shell 21 of the device is connected with the connecting seat 4, so that the device is easy to install and has higher installation precision, and the centrifugal force generated by unbalance when the rotor of the torque-limiting type hydraulic coupler rotates is reduced, so that the device runs stably; the torque-limiting type fluid coupler rotor can play a role in power transmission by filling a certain amount of working fluid.
The quincuncial elastic coupling 22 comprises a quincuncial elastic block 2 and a driven coupling 3, wherein the quincuncial elastic block 2 is arranged on the tooth claw of the driving coupling 1, and the tooth claw of the driven coupling 3 is matched with the quincuncial elastic block 2.
The diaphragm coupler 23 comprises an output coupler 14 and a diaphragm 15, the output coupler 14 is sleeved on the periphery of the rear section of the main shaft 7 and fixed with the same, the output coupler 14 is fixed with the working machine coupler 16 through bolts, and the diaphragm 15 is clamped between the output coupler 14 and the working machine coupler 16.
The pump impeller 9 is provided with a plurality of communication holes, and the communication holes are used for communicating the inner cavity of the pump impeller 9 with the inner cavity of the rear auxiliary cavity 6. The communication holes are arranged to enable working fluid to flow mutually, and when the prime motor 17 starts up, the working fluid flows to the rear auxiliary cavity 6; after the speed is stabilized, the working fluid flows to the pump wheel 9; during overload or deceleration, the working fluid flows to the rear auxiliary chamber 6, so that the transmission torque is increased or decreased by increasing or decreasing the working fluid to the working chamber formed in the pump wheel 9 and the turbine 10.
The end face of the connecting seat 4 is provided with a plurality of ventilation windows, and the end face and the periphery of the supporting protection cover 5 are respectively provided with a plurality of ventilation windows. When the torque limiting type fluid coupler rotor rotates, air can enter from two end faces (a vent window A supporting the end face of the protective cover 5 and a vent window B supporting the end face of the connecting seat 4) and flow out from an outer circle (a vent window C supporting the outer periphery of the protective cover 5 and a vent window D, and the vent window C and the vent window D can be converged to form a large vent window) so as to enhance the heat dissipation capacity of the air and ensure that the torque limiting type fluid coupler is in a normal working temperature range.
The active coupling 1 is a coupling cast by adopting aluminum alloy.
Working fluid extractionWith mineral oil, the viscosity μ=32 mm 2/s (40 ℃), the severity γ=860 kg/m 3 The flash point is more than 180 ℃ and the condensation point is less than-10 ℃.
The mineral oil adopts hydraulic transmission oil or No. 32 turbine oil.
The working principle of the embodiment is as follows: after the prime motor 17 is started, the flywheel 20 drives the driving coupling 1, the quincuncial elastic block 2, the driven coupling 3, the rear auxiliary cavity 6, the pump wheel 9 and the shell 11 to rotate, the rotating rear auxiliary cavity 6, the pump wheel 9 and the shell 11 drive working fluid in the cavities to rotate, radial blades on the pump wheel 9 enable the working fluid in the pump wheel 9 to spirally flow from inside to outside, flow out from the outer edge of the pump wheel 9 and wash towards the turbine 10, the radial blades on the turbine 10 rotate under the action of liquid flow, and the rotating turbine 10 drives the main shaft 7 to rotate; after the liquid flow in the turbine 10 pushes the turbine 10 to rotate, the liquid flows out from the inner edge of the turbine 10, and the liquid flow returns to the pump wheel 9, so that the circulation is continuous, and the power transmission is realized; the rotating main shaft 7 drives the working machine 19 through the output coupling 14 and the working machine coupling 16 by the diaphragm 15, so that the linkage of power from the prime motor 17 to the working machine 19 is realized.
The engineering torque-limiting hydraulic coupler 18 is a hydraulic element which adopts a supporting connecting seat 4, supports the torque-limiting hydraulic coupler to be installed and connected with a prime motor 17 (a fuel oil engine/a diesel engine), a rotor of the torque-limiting hydraulic coupler is connected with a flywheel 20 of the prime motor 17 (the fuel oil engine/the diesel engine), and a main shaft 7 is connected with a working machine 19 (such as a speed reducer) through a diaphragm coupler 23. The working cavity is filled with a certain amount of working fluid to transfer power, so that the device has the advantages of convenience in installation and self-bearing, and the torque-limiting hydraulic coupler rotor axis has little deviation from the flywheel 20 rotation axis of the prime motor 17 (the fuel oil/diesel engine), thereby ensuring the influence of the torque-limiting hydraulic coupler rotor on the prime motor 17 (the fuel oil/diesel engine) and the working machine 19 (such as a speed reducer), and ensuring smoother unit operation. Meanwhile, air is sucked into the coupler through the two sides of the supporting connecting seat 4, and after body heat energy generated by the operation of the coupler is exchanged by the air, the air is taken out from the circumference of the supporting protection outer cover, so that the natural cooling of the air is realized, and the coupler is effectively ensured to be in a normal range.
The embodiment has the characteristics of improving transmission quality and saving energy:
1) The prime motor 17 can be started in an idle load and is started in a soft state, and the initial starting and the speed increasing of the prime motor 17 are facilitated.
2) The ability of prime mover 17 to start load can be improved: the low-speed maximum torque of the prime motor 17 is utilized to start load, so that the starting time of the working machine 19 is prolonged, and the starting inertia and the starting torque of the working machine 19 are reduced to wash out the prime motor 17.
3) Overload protection: when the working machine 19 is severely overloaded or blocked, the prime motor 17 still can rotate normally with the torque-limiting hydraulic coupler, the rotating speed of the prime motor 17 is reduced, the transmission torque of the torque-limiting hydraulic coupler is reduced, and meanwhile, the transmission torque of the hydraulic coupler is lower than the maximum output torque of the prime motor 17 (diesel engine) at a low speed, so that the prime motor 17 is protected from suddenly flameout and stopping, and the working machine 19 is not damaged due to power overload.
4) The coupler adopts the supporting protective cover 5 to support the rotor of the hydraulic coupler, reduces the workload of installation and maintenance, and plays a role in protection.
5) The working is stable and reliable, the impact and vibration in the starting and running processes are reduced, the torsional vibration and the buffer are isolated, the equipment and the transmission parts are protected, and the service life of the equipment is prolonged.
6) The efficient area of the prime motor 17 can be utilized for working, the wide working transfer and torque transmission are realized, the prime motor 17 can be better matched with the working machine 19 for use, and the efficiency of the prime motor 17 is improved.
The torque-limiting hydraulic coupler is adopted to transfer torque, so that the dynamic load of a prime motor 17 (diesel engine) and a working machine 19 (speed reducer) in the starting process can be reduced, the impact load during working is slowed down, the prime motor 17 can be matched with the working machine 19 better, and the torque-limiting hydraulic coupler is suitable for being matched with a large-inertia working machine 19 which continuously works, a working machine 19 with large load change and large impact load, and is particularly suitable for being matched with engineering mechanical equipment which adopts a fuel oil engine as power, such as crushing, material conveying, field working and the like.
1. The main technical parameters of the embodiment are as follows:
1) The external dimensions and main technical parameters are shown in the following table:
2) Noise: and less than or equal to 80dB.
3) Vibration value: not more than 4.2mm/s (vibration speed) and not more than 0.05mm (amplitude).
2. The installation of the present embodiment
1) The active coupling 1 is bolted to the flywheel 20 of the prime mover 17 (fuel/diesel engine) and the working machine coupling 16 is mounted on the input shaft of the working machine 19 (speed reducer).
2) The quincuncial elastic block 2 is arranged on the tooth claw of the active coupling 1; then the driving coupling 1 is adjusted to lead the space of the elastic body of the quincuncial elastic block 2 to be aligned with the tooth claw of the driven coupling 3 of the torque-limiting hydraulic coupler 18 for engineering.
3) The torque-limiting hydraulic coupler 18 for the engineering is lifted and pushed, so that the tooth claws of the driven coupler 3 enter the plum blossom-shaped elastic block 2, and then the tooth claws are aligned with the connecting holes of the shell of the prime motor 17 (the fuel oil engine/the diesel engine) and the connecting seat 4, and the tooth claws are connected by bolts, so that nuts are screwed.
4) The tooth claw end face spacing of the check plum blossom type elastic coupling 22 should be 3-8 mm.
5) The rotor of the torque-limiting fluid coupling 18 for the disc-driven engineering is flexible to rotate, and has no abnormality and abnormal sound.
6) The supporting protective cover 5 of the torque-limiting hydraulic coupler 18 for engineering is fixed.
7) The working machine 19 (speed reducer) is installed and exactly found, the radial offset value and the axis inclination meet the requirements shown in the table below, and the distance value between the end surfaces of the output coupling 14 and the working machine coupling 16 and the thickness value of the diaphragm 15 are 0.1 mm-0.6 mm larger; the membrane 15 is fitted and connected.
| Model number | Two axes are radially offset by mm | Two axes are inclined by mm |
| YOXG560T | ≤0.08 | ≤0.2/1000 |
| YOXG600T | ≤0.08 | ≤0.2/1000 |
| YOXG650T | ≤0.08 | ≤0.2/1000 |
8) The rotation of the torque-limiting fluid coupling 18 and the working machine 19 for the engineering is free from abnormality and abnormal noise.
9) The oil filling plug 8 and the fusible plug 12 on the same side of the torque limiting hydraulic coupler 18 for engineering are detached through the ventilation window supporting the protective cover 5, and the installation hole of the fusible plug 12 for installing Kong Heyi the oil filling plug 8 is rotated to the upper part, so that the torque limiting hydraulic coupler 18 for engineering is filled with oil to meet the requirements.
10 Screwing on and off the filler plug 8 and the fusible plug 12, and screwing on and off. Care should be taken not to damage the O-ring seal on the filler plug 8 and fusible plug 12.
11 The diaphragm 15 of the diaphragm coupling 23 is removed.
12 Starting the prime mover 17 (fuel/diesel engine) to idle operation, observing that the torque-limiting fluid coupling 18 for the present project should not be abnormal in operation and measuring the vibration values of the support base and the support shield 5 of the torque-limiting fluid coupling 18 for the present project, the measured vibration values should be within the required range.
13 Step up the prime mover 17 (oil/diesel engine) to the working speed, observe the operation of the torque limiting hydraulic coupler 18 for the project should be abnormal and measure the vibration value of the supporting seat and the supporting shield 5 of the torque limiting hydraulic coupler 18 for the project; the measured vibration value should be within the required range.
14 A) stopping the machine.
15 A diaphragm 15 is arranged, and the diaphragm coupler 23 is driven to have no abnormality or abnormal sound.
16 No load on the working machine 19 (speed reducer); operating as in 12) and 13) above; the operation should be free of anomalies.
17 On-load test operation of the working machine 19 (speed reducer), starting the prime mover 17 (fuel/diesel engine) to idle operation, at which time the working machine 19 may not rotate, and if the working machine 19 does not rotate, the idle rotation speed of the prime mover 17 (fuel/diesel engine) should be increased to rotate the working machine 19; at this time, the torque limiting fluid coupling 18 for the present engineering should be transported normally.
18 Raising the prime mover 17 (oil/diesel engine) to the working rotation speed, operating the working machine 19 normally, checking and observing that the moment-limiting hydraulic coupler 18 for the project should not be abnormal in operation and measuring the vibration values of the supporting seat and the supporting shield 5 of the moment-limiting hydraulic coupler 18 for the project, and measuring the outer surface temperature of the supporting shield 5 where the bearing is installed and the outer surface temperature of the housing 11; the measured vibration value should be within the required range and the measured temperature should be below 95 ℃.
19 Shut down or put into service.
3. Disassembly sequence of the present embodiment:
1) The diaphragm 15 is removed, and anchor bolts supporting the shield 5 are removed.
2) The torque-limiting fluid coupling 18 for engineering is hung up.
3) The coupling bolts of the active coupling 1 and the flywheel 20 of the prime mover 17 (fuel/diesel engine) are removed.
4) The connecting bolts of the casing of the prime mover 17 (fuel/diesel engine) and the connecting seat 4 are detached.
5) Moving the torque limiting fluid coupling 18 for the present process in the direction of the working machine 19 to disengage the connection block 4 from the housing of the prime mover 17 (fuel/diesel engine); the torque limiting fluid coupling 18 for the engineering is swung or the active coupling 1 is pushed, so that the active coupling 1 is separated from the flywheel 20.
6) And (5) hanging off the torque limiting type hydraulic coupler 18 for the engineering.
7) And removing the driving coupling 1, the quincuncial elastic block 2 and the driven coupling 3.
8) The output coupling 14 is pulled out and the flat key is removed.
9) And (5) removing the gland at the bearing.
10 The connection holder 4 is removed.
11 The end face of the main shaft 7 is pressed, and the support shield 5 and the bearing 13 are pulled out.
12 The oil filling plug 8 and the fusible plug 12 on the same side of the torque limiting hydraulic coupler 18 for engineering are disassembled, and the working fluid is discharged from the hole of the fusible plug 12.
13 The rear auxiliary chamber 6, the housing 11 and the pump wheel 9 are removed.
Thus, the moment-limiting fluid coupling 18 for the present process is disassembled.
Note that: the surface of the aluminum casting cannot be knocked during the mounting and dismounting, and the body of the torque-limiting fluid coupling 18 for the mounting and dismounting process by a heating method is not allowed.
5.4. Selection of working oils and quality:
the working oil needs to have the advantages of low viscosity mu, high heavy gamma, high flash point, low condensation point, aging resistance, low corrosiveness and the like, and some conditions are mutually restricted, cannot be combined, and only are comprehensively considered. The working oil is required to have the following properties:
viscosity: mu = 32 mm 2 /s(40℃)
Severe: gamma=860 kg/m 3
Flash point: more than 180 DEG C
Condensation point: < -10 DEG C
The mineral oil meeting the requirements of the normal working condition of the coupler comprises the following components: hydraulic transmission oil, 32# turbine oil and the like.
The foregoing detailed description is directed to embodiments of the utility model which are not intended to limit the scope of the utility model, but rather to cover all modifications and variations within the scope of the utility model.
Claims (5)
1. The utility model provides an engineering is with limit moment formula fluid coupling installs between prime mover and working machine, its characterized in that: the device comprises an active coupling, a quincuncial elastic coupling, a supporting connecting seat assembly, a torque-limiting type fluid coupling rotor and a diaphragm coupling; one end of the driving coupling is connected with a flywheel of the prime motor, the other end of the driving coupling is connected with the torque-limiting type fluid coupling rotor through the quincuncial elastic coupling, the torque-limiting type fluid coupling rotor is positioned in the supporting connecting seat assembly and supported by the supporting connecting seat assembly, and the torque-limiting type fluid coupling rotor is connected with the working machine coupling through the diaphragm coupling; the torque-limiting type hydraulic coupler rotor comprises a rear auxiliary cavity, a main shaft, an oil filling plug, a pump wheel, a turbine, a shell and a fusible plug, wherein the quincuncial elastic coupler is connected with the rear auxiliary cavity, the pump wheel, the turbine and the shell are sequentially sleeved at the periphery of the front section of the main shaft, the outer end of the rear auxiliary cavity is connected with the pump wheel, the outer end of the pump wheel is connected with the shell, the turbine is positioned in a cavity on the inner side of the shell and is parallel to and symmetrically arranged with the pump wheel, the inner side of the turbine is fixed on the periphery of the main shaft, a plurality of blades for stirring liquid flow are arranged on the turbine and the pump wheel, and a working cavity for working fluid to flow is formed between the pump wheel and the turbine; one end of the supporting connecting seat component is connected with the prime motor shell, and the other end of the supporting connecting seat component is sleeved at the periphery of the rear section of the main shaft; the rear section of the main shaft is connected with a working machine through the diaphragm coupler and the working machine coupler; an oil injection channel and the oil injection plug for sealing the oil injection channel are arranged above the pump wheel, and the fusible plug is arranged above the shell; the inner cavity of the pump wheel is communicated with the inner cavity of the rear auxiliary cavity, the outer edge outlet of the pump wheel is communicated with the outer edge inlet of the turbine, and the inner edge inlet of the turbine is communicated with the inner edge outlet of the pump wheel; the supporting connecting seat assembly comprises a connecting seat, a supporting protective cover and a bearing, one end of the connecting seat is fixedly connected with the prime motor shell, the other end of the connecting seat is connected with the supporting protective cover, and the side wall of the other end of the supporting protective cover is sleeved on the periphery of the rear section of the main shaft through the bearing.
2. The engineering torque limiting fluid coupling of claim 1, wherein: the plum blossom type elastic coupling comprises a plum blossom type elastic block and a driven coupling, wherein the plum blossom type elastic block is arranged on a tooth claw of the driving coupling, and the tooth claw of the driven coupling is matched with the plum blossom type elastic block.
3. The engineering torque limiting fluid coupling of claim 1, wherein: the diaphragm coupler comprises an output coupler and a diaphragm, the output coupler is sleeved on the periphery of the rear section of the main shaft and is fixed with the main shaft, the output coupler is fixed with the working machine coupler through bolts, and the diaphragm is clamped between the output coupler and the working machine coupler.
4. The engineering torque limiting fluid coupling of claim 1, wherein: the end face of the connecting seat is provided with a plurality of ventilation windows, and the end face and the periphery of the supporting protective cover are respectively provided with a plurality of ventilation windows.
5. The engineering torque limiting fluid coupling of claim 1, wherein: the active coupling is a coupling formed by casting aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320052450.XU CN219139751U (en) | 2023-01-09 | 2023-01-09 | Moment-limiting type hydraulic coupler for engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320052450.XU CN219139751U (en) | 2023-01-09 | 2023-01-09 | Moment-limiting type hydraulic coupler for engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139751U true CN219139751U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320052450.XU Active CN219139751U (en) | 2023-01-09 | 2023-01-09 | Moment-limiting type hydraulic coupler for engineering |
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| Country | Link |
|---|---|
| CN (1) | CN219139751U (en) |
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2023
- 2023-01-09 CN CN202320052450.XU patent/CN219139751U/en active Active
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