CN110725869A - Explosion-proof type electric control hydraulic clutch - Google Patents
Explosion-proof type electric control hydraulic clutch Download PDFInfo
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- CN110725869A CN110725869A CN201911060005.2A CN201911060005A CN110725869A CN 110725869 A CN110725869 A CN 110725869A CN 201911060005 A CN201911060005 A CN 201911060005A CN 110725869 A CN110725869 A CN 110725869A
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- 238000001816 cooling Methods 0.000 claims abstract description 41
- 230000001050 lubricating effect Effects 0.000 claims abstract description 27
- 239000003921 oil Substances 0.000 claims description 184
- 238000007789 sealing Methods 0.000 claims description 37
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/14—Fluid pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/064—Control of electrically or electromagnetically actuated clutches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses an explosion-proof type electric control hydraulic clutch, which relates to the technical field of hydraulic clutches and comprises a power input part, an output part, a shell, a hydraulic control valve block and an oil supply rotary joint, wherein the power input part and the output part are in a clutch state and a meshing state when in use, an electromagnetic valve is powered off in the clutch state, and no power is transmitted between an input shaft and an output shaft; the electromagnetic valve is electrified under the meshing state, and power is transmitted between the input shaft and the output shaft. The explosion-proof type electric control hydraulic clutch adopts a mechanical, electrical and hydraulic integrated design, integrates four parts of control, execution, cooling and lubrication, improves the working stability and the transmission efficiency of the clutch through the integrated design, greatly reduces the daily maintenance cost, saves the installation space, and has simpler, more convenient and more flexible use method. Because the wet type work is adopted, the lubricating and cooling device is integrated, and the structure is closed, the high-speed dynamic meshing can not generate sparks, the working temperature is constant, and the high temperature can not be generated, thereby having the explosion-proof performance.
Description
Technical Field
The invention relates to the technical field of hydraulic clutches, in particular to an explosion-proof type electronic control hydraulic clutch.
Background
Clutches are common components in mechanical transmissions, and allow the transmission to be disengaged or engaged at any time. The traditional clutch is not reasonable enough in structural design, poor in working stability and transmission efficiency, high in daily maintenance cost, inconvenient to install and use and not suitable for high-risk occasions such as oil gas, chemical engineering and the like. Therefore, an explosion-proof clutch with high stability and transmission efficiency, low maintenance cost, simple and flexible use method is urgently needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides an explosion-proof type electric control hydraulic clutch which is used for improving the explosion resistance, the stability and the transmission efficiency of the clutch, reducing the daily maintenance cost and saving the installation space, and the using method of the explosion-proof type electric control hydraulic clutch is simpler, more convenient and more flexible.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an explosion-proof type electric control hydraulic clutch, comprising:
the power input component comprises a transfer flange, a spline housing, an input shaft and a clutch input hub, wherein an inner spline housing of the spline housing is arranged on an outer spline at the left end of the input shaft, the transfer flange is fixedly sleeved outside the spline housing, the clutch input hub is fixedly sleeved at the right end of the input shaft, and a plurality of first radial oil outlet holes are formed in the clutch input hub;
the output part comprises a clutch assembly and an output shaft, an output shaft control oil duct and an output shaft lubricating and cooling oil duct are arranged in the output shaft, the output shaft control oil duct comprises a first axial oil outlet and a first radial oil outlet, a ball plug is mounted on the first axial oil outlet, the output shaft lubricating and cooling oil duct comprises a second axial oil outlet and a second radial oil outlet, and the second axial oil outlet penetrates through the left end face of the output shaft; the clutch assembly comprises a clutch shell, a bearing disc, a friction pair, a piston, an exhaust valve, a reset spring and a spring seat, wherein the clutch shell comprises a shell body and a cylindrical flange arranged at the center of the shell body, the shell body is provided with a plurality of second radial oil outlets, a clutch oil cylinder is formed between the shell body and the cylindrical flange, the cylindrical flange is fixedly sleeved at the left end of the output shaft, the piston is installed in the clutch oil cylinder through a piston sealing ring, the exhaust valve is installed on the piston, the reset spring is installed on the spring seat, the reset spring and the spring seat are sleeved on the cylindrical flange, the left end of the spring seat is positioned through a shaft clamp, the right end of the spring seat is contacted with the piston, the cylindrical flange is excessively matched with the output shaft, and the cylindrical flange is provided with a first connecting oil duct and a second connecting oil duct, the first connecting oil channel is communicated with the clutch oil cylinder and the first radial oil outlet, and the second connecting oil channel is communicated with the return spring and the second radial oil outlet; the clutch input hub is positioned between the shell main body and the cylindrical flange, the friction pair comprises a first friction plate with an external spline and a second friction plate with an internal spline, the first friction plate and the second friction plate are alternately arranged, the first friction plate is in key connection with the shell main body, the second friction plate is in key connection with the clutch input hub, the pressure bearing plate is arranged on the left side of the friction pair, and the pressure bearing plate is in key connection with the shell main body and is positioned through a hole clamp;
the clutch comprises a shell, wherein the shell comprises a flywheel shell, an input bearing seat and a shaft seat, the input bearing seat is rotatably sleeved on the input shaft, the input bearing seat is positioned on the left side of the clutch input hub, the shaft seat is rotatably sleeved on the output shaft, the input bearing seat is fixedly connected with the shaft seat, a cavity is formed between the input bearing seat and the shaft seat, an oil return port is formed in the cavity and positioned on the shaft seat, the flywheel shell is fixed on the shaft seat, a shaft seat control oil duct and a shaft seat lubricating and cooling oil duct are arranged in the shaft seat, the shaft seat control oil duct is communicated with the output shaft control oil duct, the shaft seat lubricating and cooling oil duct is communicated with the output shaft lubricating and cooling oil duct, and a rotary joint mounting hole is formed in the middle of the shaft seat;
the hydraulic control valve block is fixed on the shaft seat and comprises a valve block body, and an electromagnetic valve and an overflow valve which are respectively arranged on the valve block body, a clutch control oil duct and an overflow lubricating oil duct are arranged in the valve block body and are communicated with the shaft seat control oil duct, and the overflow lubricating oil duct is communicated with the shaft seat lubricating and cooling oil duct;
the oil supply rotary joint comprises a sealing bush and a sealing ring, the outer surface of the sealing bush is in interference fit with the rotary joint mounting hole, the sealing bush is connected with the output shaft in a sealing mode through the sealing ring, a mounting groove used for mounting the sealing ring is formed in the output shaft, and through holes are formed in the sealing bush and correspond to the shaft seat control oil duct and the shaft seat lubricating and cooling oil duct.
Preferably, still include input bearing frame and first ball bearing, the input bearing frame pass through first ball bearing with the input shaft forms to rotate and is connected, the input bearing frame is fixed in the input bearing frame left side, be provided with first skeleton oil blanket in the input bearing frame, first ball bearing left side is fixed a position through the axle card.
Preferably, the input shaft is provided with an axial center oil passage and a radial hole, the right end of the axial center oil passage penetrates through the right end face of the input shaft, the right end of the axial center oil passage is provided with a throttle plug, and the left end of the axial center oil passage is communicated with the left side of the first ball bearing through the radial hole.
Preferably, the inner spline at the left end of the clutch input hub is sleeved on the outer spline at the right end of the input shaft, the left end of the clutch input hub is in contact with the first ball bearing, and the right end of the clutch input hub is positioned through a shaft clamp.
Preferably, still include output bearing cap and two second ball bearings, the axle bed is through two the second ball bearing with the output shaft forms to rotate and is connected, the output bearing cap is fixed in the axle bed right side, be provided with two mounting grooves on the axle bed, axle bed control oil duct with the lubricated cooling oil duct of axle bed all is located two between the mounting groove, one the second ball bearing install in one in the mounting groove, keep away from the output bearing cap the mounting groove with the cavity intercommunication, two the mounting groove passes through swivel joint cooling oil duct intercommunication, be provided with second skeleton oil blanket in the output bearing cap, two the second ball bearing right side is fixed a position through the axle card respectively.
Preferably, the internal spline at the right end of the cylindrical flange is sleeved on the external spline at the left end of the output shaft, the right end of the cylindrical flange is in contact with the second ball bearing far away from the output bearing cover, and the left end of the cylindrical flange is positioned through a shaft clamp.
Preferably, the input shaft is provided with a convex part at the right end, the output shaft is provided with a concave part at the left end, the convex part is arranged in the concave part, the needle bearing is arranged between the convex part and the concave part, the needle bearing is sleeved outside the convex part, and the plane needle bearing is arranged between the end faces of the input shaft and the output shaft.
Preferably, the first friction plate is a metal sintered plate, and the second friction plate is a steel plate.
Compared with the prior art, the invention has the following technical effects:
the explosion-proof electric control hydraulic clutch provided by the invention is of a mechanical, electrical and hydraulic integrated design, and integrates four parts of control, execution, cooling and lubrication. The working stability and the transmission efficiency of the clutch are improved through the integrated design, the daily maintenance cost is greatly reduced, the installation space is saved, and the using method is more simple, convenient and flexible. Because the electric control and the hydraulic control can realize remote control or a combined control system, the intelligent control can be realized, and the soft start function, namely controllable torque, can also be realized by replacing an electromagnetic valve (proportion and servo) on the hydraulic valve block. The explosion-proof type electric control hydraulic clutch provided by the invention is in wet type operation, integrates a lubricating and cooling device, is in a closed structure, does not generate sparks due to high-speed dynamic engagement, is constant in working temperature and does not have high temperature, and therefore, the explosion-proof type electric control hydraulic clutch has explosion-proof performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an explosion-proof electrically controlled hydraulic clutch according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a control schematic diagram of the hydraulic control valve block of the present invention.
Description of reference numerals: 1. a flywheel housing; 2. a shaft seat; 3. a hydraulic control valve block; 4. an output shaft; 5. an output bearing cap; 6. a second framework oil seal; 7. a seal ring; 8. a second ball bearing; 9. a seal bushing; 10. a rotary joint cooling oil duct; 11. a clutch housing; 12. an evacuation valve; 13. a piston; 14. a piston seal ring; 15. a first friction plate; 16. a second friction plate; 17. a pressure bearing disc; 18. hole clamping; 19. a spring seat; 20. a return spring; 21. shaft clamping; 22. an input bearing seat; 23. a needle bearing; 24. a planar needle bearing; 25. a clutch input hub; 26. a ball plug; 27. a throttle plug; 28. an input shaft; 29. positioning pins; 30. a first framework oil seal; 31. an input bearing cap; 32. an O-shaped ring; 33. a first ball bearing; 34. a spline housing; 35. a transfer flange; 36. a first connecting oil passage; 37. a second connecting oil passage; 38. an output shaft control oil passage; 39. an output shaft lubricating and cooling oil duct; 40. a first radial oil outlet hole; 41. a second radial oil outlet hole; 1-1, an electromagnetic valve; 1-2 overflow valves; 1-3, a pressure gauge; p, an oil inlet; p1, axle seat control oil passage; p2, a shaft seat lubricating and cooling oil passage; t, an oil return port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an explosion-proof type electric control hydraulic clutch, which is used for improving the explosion resistance, the stability and the transmission efficiency of the clutch, reducing the daily maintenance cost and saving the installation space, and the using method of the explosion-proof type electric control hydraulic clutch is simpler, more convenient and more flexible.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the present embodiment provides an explosion-proof type electrically controlled hydraulic clutch, which includes a power input part, an output part, a housing, a hydraulic control valve block 3 and an oil supply rotary joint.
Wherein, power input part includes adaptor flange 35, spline housing 34, input shaft 28, clutch input hub 25, and on the external spline of input shaft 28 left end was located to the internal spline housing of spline housing 34, adaptor flange 35 fixed cover was located spline housing 34 outsidely, and the fixed cover of clutch input hub 25 is located the input shaft 28 right-hand member, is provided with a plurality of radial oil outlet 40 on the clutch input hub 25. Specifically, the external splines at the left end of the input shaft 28 are in clearance fit with the internal splines of the spline housing 34, and the adapter flange 35 and the spline housing 34 are positioned by the positioning pins 29 and are bolted together.
The output part comprises a clutch assembly and an output shaft 4, an output shaft control oil passage 38 and an output shaft lubricating and cooling oil passage 39 are arranged in the output shaft 4, the output shaft control oil passage 38 comprises a first axial oil outlet and a first radial oil outlet, a ball plug 26 is mounted on the first axial oil outlet, the output shaft lubricating and cooling oil passage 39 comprises a second axial oil outlet and a second radial oil outlet, and the second axial oil outlet penetrates through the left end face of the output shaft 4. Specifically, the right end of the output shaft 4 is provided with an external spline. The clutch assembly comprises a clutch shell 11, a pressure bearing disc 17, a friction pair, a piston 13, an exhaust valve 12, a return spring 20 and a spring seat 19, wherein the clutch shell 11 comprises a shell main body and a cylindrical flange arranged at the center of the shell main body, a plurality of second radial oil outlet holes 41 are formed in the shell main body, a clutch oil cylinder is formed between the shell main body and the cylindrical flange, the cylindrical flange is fixedly sleeved at the left end of the output shaft 4, the piston 13 is arranged in the clutch oil cylinder through a piston sealing ring 14, specifically, the number of the piston sealing rings 14 is two, and the two piston sealing rings 14 are respectively sleeved on the inner diameter and the outer diameter of the piston 13; the evacuation valves 12 are mounted on the piston 13, specifically, the evacuation valves 12 are embedded on the piston 13 through threads, the evacuation valves 12 are arranged in two symmetrical arrangements, the evacuation valves 12 enable the clutch to reset rapidly, and the situation that oil in the clutch oil cylinder can push the piston 13 to press a friction pair to generate clutch misoperation under the action of centrifugal force due to the fact that the output shaft 4 rotates at a high speed under a separation state of the clutch is prevented; the return spring 20 is mounted on the spring seat 19, the return spring 20 and the spring seat 19 are sleeved on the cylindrical flange, the left end of the spring seat 19 is positioned through the shaft clamp 21, the right end of the spring seat 19 is in contact with the piston 13, the clutch oil cylinder belongs to a one-way oil cylinder, and the return spring 20 plays a role in returning the piston 13; the cylindrical flange is excessively matched with the output shaft 4, a first connecting oil channel 36 and a second connecting oil channel 37 are arranged on the cylindrical flange, the first connecting oil channel 36 is communicated with the clutch oil cylinder and the first radial oil outlet, and the second connecting oil channel 37 is communicated with the position of the return spring 20 and the second radial oil outlet; clutch input hub 25 is located between casing main part and the tube-shape flange, the friction pair is including taking the first friction disc 15 of external splines and taking the second friction disc 16 of internal splines, first friction disc 15 and second friction disc 16 set up in turn, first friction disc 15 and casing main part key-type connection and can be for casing main part endwise slip, second friction disc 16 and clutch input hub 25 key-type connection and can be for clutch input hub 25 endwise slip, bearing plate 17 sets up in the left side of friction pair, bearing plate 17 and casing main part key-type connection and fix a position through hole card 18.
The casing includes flywheel shell 1, input bearing frame 22 and axle bed 2, input bearing frame 22 rotates the cover and locates on input shaft 28, and input bearing frame 22 is located clutch input hub 25 left side, axle bed 2 rotates the cover and locates on output shaft 4, input bearing frame 22 and axle bed 2 fixed connection, and form a cavity between input bearing frame 22 and the axle bed 2, be provided with oil return opening T on the cavity, oil return opening T is located axle bed 2, flywheel shell 1 is fixed in on the axle bed 2, be provided with axle bed control oil duct P1 and axle bed lubrication cooling oil duct P2 in the axle bed 2, axle bed control oil duct P1 and output shaft control oil duct 38 intercommunication, axle bed lubrication cooling oil duct P2 and output shaft lubrication cooling oil duct 39 intercommunication, the axle bed 2 middle part is provided with the rotary joint mounting hole. Specifically, the input bearing seat 22 and the shaft seat 2 are fixedly connected through a bolt, and the flywheel housing 1 and the shaft seat 2 are fixedly connected through a bolt.
The hydraulic control valve block 3 is fixed on the shaft seat 2, the hydraulic control valve block 3 comprises a valve block body, and an electromagnetic valve 1-1 and an overflow valve 1-2 which are respectively arranged on the valve block body, a clutch control oil duct and an overflow lubricating oil duct are arranged in the valve block body, the clutch control oil duct is communicated with a shaft seat control oil duct P1, and the overflow lubricating oil duct is communicated with a shaft seat lubricating and cooling oil duct P2. Specifically, the hydraulic control valve block 3 further includes a pressure gauge 1-3, and a control schematic diagram of the hydraulic control valve block 3 of the present embodiment is shown in fig. 3, wherein an inlet of the overflow valve 1-2 is an oil inlet P. In this embodiment, solenoid valve 1-1 is DC 24V.
The oil supply rotary joint comprises a sealing bush 9 and a sealing ring 7, the outer surface of the sealing bush 9 is in interference fit with a rotary joint mounting hole, the sealing bush 9 is in sealing connection with the output shaft 4 through the sealing ring 7, a mounting groove for mounting the sealing ring 7 is formed in the output shaft 4, and through holes are formed in the sealing bush 9 and correspond to the shaft seat control oil passage P1 and the shaft seat lubricating and cooling oil passage P2. Specifically, two rows of through holes are formed in the seal bushing 9, and the two rows of through holes respectively correspond to the shaft seat control oil passage P1 and the shaft seat lubricating and cooling oil passage P2. The oil supply rotary joint in the embodiment belongs to floating ring type sealing, has the characteristics of high running speed, small friction coefficient, reliable sealing, strong anti-pollution capability, high temperature resistance and the like, and basically does not need maintenance, so that the oil supply reliability is improved.
The input bearing seat 22 is rotatably connected with the input shaft 28 through the first ball bearing 33, the input bearing cover 31 is fixed on the left side of the input bearing seat 22, a first framework oil seal 30 is arranged in the input bearing cover 31 and further forms reliable sealing with the input shaft 28, and the left side of the first ball bearing 33 is positioned through the shaft clamp 21. Specifically, the input bearing cover 31 and the input bearing housing 22 are fixedly connected by bolts. In order to further improve the sealing performance, an O-ring 32 is provided at a step of the input bearing cover 31.
In order to lubricate and cool the first ball bearing 33, the input shaft 28 is provided with an axial center oil passage and a radial hole, the right end of the axial center oil passage penetrates through the right end face of the input shaft 28, the right end of the axial center oil passage is provided with a throttle plug 27, and the left end of the axial center oil passage is communicated with the left side of the first ball bearing 33 through the radial hole.
Specifically, the inner spline of the left end of the clutch input hub 25 is sleeved on the outer spline of the right end of the input shaft 28, the left end of the clutch input hub 25 is in contact with the first ball bearing 33, and the right end of the clutch input hub 25 is positioned by the shaft clamp 21.
Still include output bearing cap 5 and two second ball bearings 8 in this embodiment, axle bed 2 forms to rotate through two second ball bearings 8 and output shaft 4 and is connected, and output bearing cap 5 is fixed in axle bed 2 right side, is provided with second skeleton oil blanket 6 in the output bearing cap 5, and then forms reliable sealed with output shaft 4, specifically, output bearing cap 5 and axle bed 2 pass through bolt fixed connection, and in order to further promote the leakproofness, the step department of output bearing cap 5 is provided with O type circle 32. Be provided with two mounting grooves on the axle bed 2, axle bed control oil duct P1 and axle bed lubrication cooling oil duct P2 all are located between two mounting grooves, and a second ball bearing 8 is installed in a mounting groove, keeps away from the mounting groove and the cavity intercommunication of output bearing lid 5, and two mounting grooves pass through swivel joint cooling oil duct 10 intercommunication, and two 8 right sides of second ball bearing are fixed a position through axle card 21 respectively. It can be seen that the clutch assembly and clutch input hub 25 are mounted in the closed environment formed by the input bearing cover 31, the input bearing seat 22, the shaft receptacle 2 and the output bearing cover 5.
Specifically, the internal spline at the right end of the cylindrical flange is sleeved on the external spline at the left end of the output shaft 4, the right end of the cylindrical flange is in contact with the second ball bearing 8 far away from the output bearing cover 5, and the left end of the cylindrical flange is positioned by the shaft clamp 21.
In this embodiment, the present invention further includes a needle bearing 23 and a planar needle bearing 24, the right end of the input shaft 28 is provided with a convex portion, the left end of the output shaft 4 is provided with a concave portion, the convex portion is disposed in the concave portion, the needle bearing 23 is disposed between the convex portion and the concave portion, and the needle bearing 23 is sleeved outside the convex portion, so as to prevent the end surface friction between the input shaft 28 and the output shaft 4, the planar needle bearing 24 is disposed between the end surfaces of the input shaft 28 and the output shaft 4.
In the prior art, there are various types of friction pairs, in this embodiment, the first friction plate 15 is a metal sintered plate, and the second friction plate 16 is a steel plate, and those skilled in the art can select friction plates of other materials according to the needs of working conditions.
The explosion-proof type electric control hydraulic clutch in the embodiment has two states of clutch and engagement when in use. Under the clutch state, the electromagnetic valve 1-1 is powered off, so that the clutch control oil passage of the hydraulic control valve block 3 is closed, oil cannot be filled into the clutch oil cylinder through the clutch control oil passage and the shaft seat control oil passage P1 in the valve block body, the piston 13 is reset under the action of the reset spring 20, the first friction plate 15 and the second friction plate 16 in the friction pair are separated, and no power is transmitted between the power input part and the external spline at the left end of the output shaft 4, namely, the clutch state is achieved. At this time, the oil can enter the shaft seat lubricating and cooling oil passage P2 from the overflow lubricating oil passage of the valve block body, and then enter the clutch assembly through the oil supply rotary joint and the output shaft lubricating and cooling oil passage 39. Most of the oil enters the friction pair through the first radial oil outlet hole 40 of the clutch input hub 25 and then is discharged through the second radial oil outlet hole 41 of the shell body. Another small part of the oil liquid enters the left side of the first ball bearing 33 through the throttle plug 27, the axial center oil passage and the radial hole on the end surface of the input shaft 28, thereby lubricating and cooling the first ball bearing 33. At this time, all the hydraulic oil flowing into the hydraulic control valve block 3 from the oil inlet P flows out through the relief valves 1-2.
After the electromagnetic valve 1-1 is switched on, oil enters the shaft seat control oil passage P1, the oil supply rotary joint and the output shaft control oil passage 38 through the clutch control oil passage in the valve block body and enters the clutch oil cylinder, the piston 13 is pushed to move towards the friction pair side, and the first friction plate 15 and the second friction plate 16 are forced to be pressed together. At this time, the power can be transmitted to the first friction plate 15 in the form of the matched internal spline through the external spline of the clutch input hub 25 of the power input component, then the first friction plate 15 transmits the power to the adjacent second friction plate 16 provided with the external spline, the second friction plate 16 transmits the power to the matched clutch shell 11 provided with the internal spline, the clutch shell 11 transmits the power to the output shaft 4 connected with the key, and the power is transmitted out through the output shaft 4. At the moment, the explosion-proof type electric control hydraulic clutch is in an engaged state, and power is transmitted between the power input part and the output shaft 4. After the electromagnetic valve 1-1 is powered off, the explosion-proof type electric control hydraulic clutch recovers a clutch state under the action of the return spring 20.
In this embodiment, the oil supply rotary joint plays a crucial role, which is related to the operation reliability of the clutch, and for this reason, the oil supply rotary joint is integrated and simultaneously reinforced, the sealing ring 7 of the oil supply rotary joint is made of modified polyetheretherketone polymer material, which has the characteristics of wear resistance, corrosion resistance, high pressure resistance and low friction coefficient, and the sealing bush 9 matched with the material is subjected to hard nitriding treatment, so that the material has high hardness. The oil supply rotary joint belongs to a high-speed rotating part, and the friction between the sealing ring 7 and the sealing bush 9 can generate great heat, so that a rotary joint cooling oil duct 10 is specially designed for the oil supply rotary joint and is positioned between two second ball bearings 8 of the shaft seat 2, and specifically, the rotary joint cooling oil ducts 10 are axially arranged and are uniformly distributed along the circumferential direction to achieve a better cooling effect, so that the reliability of the oil supply rotary joint is improved.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. An explosion-proof type electrically controlled hydraulic clutch, comprising:
the power input component comprises a transfer flange, a spline housing, an input shaft and a clutch input hub, wherein an inner spline housing of the spline housing is arranged on an outer spline at the left end of the input shaft, the transfer flange is fixedly sleeved outside the spline housing, the clutch input hub is fixedly sleeved at the right end of the input shaft, and a plurality of first radial oil outlet holes are formed in the clutch input hub;
the output part comprises a clutch assembly and an output shaft, an output shaft control oil duct and an output shaft lubricating and cooling oil duct are arranged in the output shaft, the output shaft control oil duct comprises a first axial oil outlet and a first radial oil outlet, a ball plug is mounted on the first axial oil outlet, the output shaft lubricating and cooling oil duct comprises a second axial oil outlet and a second radial oil outlet, and the second axial oil outlet penetrates through the left end face of the output shaft; the clutch assembly comprises a clutch shell, a bearing disc, a friction pair, a piston, an exhaust valve, a reset spring and a spring seat, wherein the clutch shell comprises a shell body and a cylindrical flange arranged at the center of the shell body, the shell body is provided with a plurality of second radial oil outlets, a clutch oil cylinder is formed between the shell body and the cylindrical flange, the cylindrical flange is fixedly sleeved at the left end of the output shaft, the piston is installed in the clutch oil cylinder through a piston sealing ring, the exhaust valve is installed on the piston, the reset spring is installed on the spring seat, the reset spring and the spring seat are sleeved on the cylindrical flange, the left end of the spring seat is positioned through a shaft clamp, the right end of the spring seat is contacted with the piston, the cylindrical flange is excessively matched with the output shaft, and the cylindrical flange is provided with a first connecting oil duct and a second connecting oil duct, the first connecting oil channel is communicated with the clutch oil cylinder and the first radial oil outlet, and the second connecting oil channel is communicated with the return spring and the second radial oil outlet; the clutch input hub is positioned between the shell main body and the cylindrical flange, the friction pair comprises a first friction plate with an external spline and a second friction plate with an internal spline, the first friction plate and the second friction plate are alternately arranged, the first friction plate is in key connection with the shell main body, the second friction plate is in key connection with the clutch input hub, the pressure bearing plate is arranged on the left side of the friction pair, and the pressure bearing plate is in key connection with the shell main body and is positioned through a hole clamp;
the clutch comprises a shell, wherein the shell comprises a flywheel shell, an input bearing seat and a shaft seat, the input bearing seat is rotatably sleeved on the input shaft, the input bearing seat is positioned on the left side of the clutch input hub, the shaft seat is rotatably sleeved on the output shaft, the input bearing seat is fixedly connected with the shaft seat, a cavity is formed between the input bearing seat and the shaft seat, an oil return port is formed in the cavity and positioned on the shaft seat, the flywheel shell is fixed on the shaft seat, a shaft seat control oil duct and a shaft seat lubricating and cooling oil duct are arranged in the shaft seat, the shaft seat control oil duct is communicated with the output shaft control oil duct, the shaft seat lubricating and cooling oil duct is communicated with the output shaft lubricating and cooling oil duct, and a rotary joint mounting hole is formed in the middle of the shaft seat;
the hydraulic control valve block is fixed on the shaft seat and comprises a valve block body, and an electromagnetic valve and an overflow valve which are respectively arranged on the valve block body, a clutch control oil duct and an overflow lubricating oil duct are arranged in the valve block body and are communicated with the shaft seat control oil duct, and the overflow lubricating oil duct is communicated with the shaft seat lubricating and cooling oil duct;
the oil supply rotary joint comprises a sealing bush and a sealing ring, the outer surface of the sealing bush is in interference fit with the rotary joint mounting hole, the sealing bush is connected with the output shaft in a sealing mode through the sealing ring, a mounting groove used for mounting the sealing ring is formed in the output shaft, and through holes are formed in the sealing bush and correspond to the shaft seat control oil duct and the shaft seat lubricating and cooling oil duct.
2. The explosion-proof electric control hydraulic clutch according to claim 1, further comprising an input bearing cover and a first ball bearing, wherein the input bearing seat is rotatably connected with the input shaft through the first ball bearing, the input bearing cover is fixed on the left side of the input bearing seat, a first framework oil seal is arranged in the input bearing cover, and the left side of the first ball bearing is positioned through a shaft clamp.
3. The explosion-proof type electrically controlled hydraulic clutch according to claim 2, wherein the input shaft is provided with an axial center oil passage and a radial hole, the right end of the axial center oil passage penetrates through the right end face of the input shaft, the right end of the axial center oil passage is provided with a throttle plug, and the left end of the axial center oil passage is communicated with the left side of the first ball bearing through the radial hole.
4. The explosion-proof electrically controlled hydraulic clutch according to claim 2, wherein the internal spline at the left end of the clutch input hub is sleeved on the external spline at the right end of the input shaft, the left end of the clutch input hub is in contact with the first ball bearing, and the right end of the clutch input hub is positioned by a shaft clamp.
5. The explosion-proof electrically controlled hydraulic clutch according to claim 1, further comprising an output bearing cover and two second ball bearings, wherein the shaft seat is rotatably connected to the output shaft through the two second ball bearings, the output bearing cover is fixed to the right side of the shaft seat, the shaft seat is provided with two mounting grooves, the shaft seat control oil passage and the shaft seat lubricating and cooling oil passage are located between the two mounting grooves, one second ball bearing is mounted in one mounting groove, the mounting groove far away from the output bearing cover is communicated with the cavity, the two mounting grooves are communicated through a rotary joint cooling oil passage, a second skeleton oil seal is arranged in the output bearing cover, and the right sides of the two second ball bearings are respectively located through shaft clamps.
6. An explosion-proof electrically controlled hydraulic clutch according to claim 5 in which the internally splined hub at the right end of the tubular flange is fitted over the externally splined hub at the left end of the output shaft, the right end of the tubular flange being in contact with the second ball bearing remote from the output bearing cap, the left end of the tubular flange being located by a shaft clip.
7. The explosion-proof electrically controlled hydraulic clutch according to claim 1, further comprising a needle bearing and a flat needle bearing, wherein a protrusion is provided at a right end of the input shaft, a recess is provided at a left end of the output shaft, the protrusion is provided in the recess, the needle bearing is provided between the protrusion and the recess, the needle bearing is sleeved outside the protrusion, and the flat needle bearing is provided between end faces of the input shaft and the output shaft.
8. An explosion proof electrically controlled hydraulic clutch according to claim 1, characterized in that the first friction plate is a metal sintered plate and the second friction plate is a steel plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911060005.2A CN110725869B (en) | 2019-11-01 | 2019-11-01 | Explosion-proof type electric control hydraulic clutch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060005.2A CN110725869B (en) | 2019-11-01 | 2019-11-01 | Explosion-proof type electric control hydraulic clutch |
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| CN110725869A true CN110725869A (en) | 2020-01-24 |
| CN110725869B CN110725869B (en) | 2024-05-17 |
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| CN201911060005.2A Active CN110725869B (en) | 2019-11-01 | 2019-11-01 | Explosion-proof type electric control hydraulic clutch |
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| CN111156266A (en) * | 2020-03-05 | 2020-05-15 | 伟攀(上海)机械设备有限公司 | Hydraulic clutch of fracturing pump with double rotary joints |
| CN113483088A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
| CN114382794A (en) * | 2022-01-24 | 2022-04-22 | 一汽解放汽车有限公司 | Wet-type double clutch, car speed change gear and car |
| CN114542620A (en) * | 2022-02-25 | 2022-05-27 | 西安双特智能传动有限公司 | Double-lubrication single-side friction material disc clutch |
| CN114645912A (en) * | 2022-03-28 | 2022-06-21 | 河南科技大学 | Novel wet clutch structure |
| WO2023182976A1 (en) * | 2022-03-22 | 2023-09-28 | PT Tech, LLC | Adaptive platform for hydraulic clutches |
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| CN205559613U (en) * | 2016-03-25 | 2016-09-07 | 第一拖拉机股份有限公司 | Tractor is with normal convolution transfer case of taking wet clutch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111156266A (en) * | 2020-03-05 | 2020-05-15 | 伟攀(上海)机械设备有限公司 | Hydraulic clutch of fracturing pump with double rotary joints |
| CN111156266B (en) * | 2020-03-05 | 2021-05-18 | 伟攀(上海)机械设备有限公司 | Hydraulic clutch of fracturing pump with double rotary joints |
| CN113483088A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
| CN113483088B (en) * | 2021-07-22 | 2022-06-14 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
| CN114382794A (en) * | 2022-01-24 | 2022-04-22 | 一汽解放汽车有限公司 | Wet-type double clutch, car speed change gear and car |
| CN114382794B (en) * | 2022-01-24 | 2023-06-16 | 一汽解放汽车有限公司 | Wet-type double clutch, automobile speed change device and automobile |
| CN114542620A (en) * | 2022-02-25 | 2022-05-27 | 西安双特智能传动有限公司 | Double-lubrication single-side friction material disc clutch |
| WO2023182976A1 (en) * | 2022-03-22 | 2023-09-28 | PT Tech, LLC | Adaptive platform for hydraulic clutches |
| CN114645912A (en) * | 2022-03-28 | 2022-06-21 | 河南科技大学 | Novel wet clutch structure |
| CN114645912B (en) * | 2022-03-28 | 2024-05-14 | 河南科技大学 | Wet clutch structure |
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| CN110725869B (en) | 2024-05-17 |
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