CN110173510B - Gas-liquid driven locking bearing - Google Patents
Gas-liquid driven locking bearing Download PDFInfo
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- CN110173510B CN110173510B CN201910586210.6A CN201910586210A CN110173510B CN 110173510 B CN110173510 B CN 110173510B CN 201910586210 A CN201910586210 A CN 201910586210A CN 110173510 B CN110173510 B CN 110173510B
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- supporting
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- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 240
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000008093 supporting effect Effects 0.000 claims description 100
- 230000001105 regulatory effect Effects 0.000 claims description 25
- 235000014676 Phragmites communis Nutrition 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 description 14
- 230000006872 improvement Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a gas-liquid driven locking bearing, wherein an annular internal pressure cavity is arranged on the outer layer of an inner connecting column; an annular outer pressure cavity is arranged on the inner layer of the outer connecting ring; the locking mechanism comprises a locking ring arranged between the inner ring assembly and the outer ring assembly, and two groups of sealing contact pieces are integrally stamped at the two transverse ends of the locking ring; the middle part of the locking ring is provided with a locking part, the upper part of the wave is provided with an outer locking bulge, the lower part of the wave is provided with an inner locking bulge, a deformation groove with an elliptical opening is formed between the upper part and the lower part of the wave, and an extension film is embedded in the deformation groove; a plurality of inner locking grooves corresponding to the inner locking protrusions are annularly arranged on the inner wall of the inner pressure cavity of the inner ring assembly in an array manner; a plurality of outer locking grooves corresponding to the outer locking protrusions are annularly arranged on the inner wall of the outer pressure cavity of the outer ring assembly in an array manner; a plurality of inner pressure relief holes are arranged on the outer wall array of the inner pressure cavity; a plurality of outer pressure relief holes are arranged on the inner wall array of the outer pressure cavity.
Description
Technical Field
The invention relates to a gas-liquid driven locking bearing, and belongs to the field of knuckle bearings for intelligent robots.
Background
Along with the development of industrial manufacturing, the industrial robot is used as novel multipurpose feeding, discharging and processing equipment, and is widely applied to various advanced manufacturing scenes by virtue of high precision and high application range; the mechanical arm is a core component of the industrial robot, the accurate swing and the locking of a fixed angle of the mechanical arm are realized mainly by relying on the magnetic resistance of a stepping motor, but the magnetic resistance locking belongs to non-contact support, and in the process of lifting some components with rotation, such as rotating motors and cutting motors with other degrees of freedom, slight shake is easily brought in the rotating process of the components, so that the supporting precision of the mechanical arm is influenced; therefore, for some heavy-load mechanical arms, a jaw clutch mechanism is generally arranged between two groups of mechanical arms to realize support; however, in order to ensure good supporting effect, the jaw clutch plate is generally made of high-density metal materials, the dead weight is large, the jaw clutch plate is required to be provided with a clamping cylinder at the position of the rotating shaft, the dead weight is also large, and for some low-load mechanical arms, the whole structure of the jaw clutch brings large burden, so that the service life of a motor is reduced, and meanwhile, the rotating precision of the motor is also reduced; and also places a severe burden on the rotating shaft.
Disclosure of Invention
The invention aims to solve the technical problems that: the technical problem of huge weight of a mechanical arm rotating shaft locking connection mechanism in the prior art is solved, and the locking bearing driven by gas and liquid is provided.
The technical scheme adopted for solving the technical problems is as follows:
the gas-liquid driven locking bearing comprises an inner ring assembly, an outer ring assembly and a locking connection mechanism; the inner ring assembly comprises an inner connecting column, an annular inner pressure cavity is arranged on the outer layer of the inner connecting column, and a plurality of inner pressurizing valves are arranged on the inner side of the inner pressure cavity in an annular array; the outer ring assembly comprises an outer connecting ring, an annular outer pressure cavity is arranged in the inner layer of the outer connecting ring, and a plurality of outer pressurizing valves are arranged on the outer side of the outer pressure cavity in an annular array; the inner ring assembly and the outer ring assembly are rotationally connected through two groups of roller mechanisms; the locking connection mechanism comprises two groups of sealing rings arranged on the inner wall of the outer ring assembly, and the inner circle of each sealing ring is in sliding sealing connection with the outer wall of the inner pressure cavity of the inner ring assembly; the locking connection mechanism further comprises a locking ring arranged between the inner ring assembly and the outer ring assembly, two groups of sealing contact pieces are integrally stamped at two transverse ends of the locking ring, and the sealing contact pieces are in sliding sealing contact with the side wall of the sealing ring; the middle part of the locking ring is provided with a locking part with a wavy cross section, wherein the upper part of the wavy bulge is an outer locking bulge, the lower part of the wavy bulge is an inner locking bulge, a deformation groove with an elliptical opening is formed between the upper part and the lower part of the wavy bulge, an extension film is inlaid in the deformation groove, the front side and the back side of the extension film are provided with bulge sheets, and the bulge sheets are in contact with the inner ring and the outer ring of the locking ring; wherein, a plurality of inner locking grooves corresponding to the inner locking protrusions are annularly arranged on the inner wall of the inner pressure cavity of the inner ring assembly in an array manner; a plurality of outer locking grooves corresponding to the outer locking protrusions are annularly arranged on the inner wall of the outer pressure cavity of the outer ring assembly in an array manner; wherein, the outer wall array of the inner pressure cavity is provided with a plurality of inner pressure relief holes for pressurizing the outer locking bulges; the inner wall array of the outer pressure cavity is provided with a plurality of outer pressure relief holes for pressurizing the inner locking bulges; according to the invention, a hydraulic and pneumatic-driven floating bearing structure is adopted, a good suspension supporting effect can be achieved for rotation of the bearing under normal conditions through pneumatic or hydraulic pressure, the good rotation smoothness of the bearing is ensured, under the condition that locking is required, the pneumatic or hydraulic pressure can be further improved to enable one side bulge of the spring piece to be extruded, so that the spring piece is embedded into an inner locking groove and an outer locking bulge, meanwhile, the radian of the inner locking bulge is increased under the condition that the outer locking bulge is of an inextensible structure, and the inner locking bulge cannot be normally embedded into the inner locking groove, so that a deformation groove of an elliptic structure is added in the structure, the expansion deformation of the middle part of the locking bulge is simulated by utilizing the axial deformation of the whole locking bulge, and an expansion film made of rubber material is arranged in the deformation groove, so that the expansion film is ensured to seal and separate the inner and outer locking bulge of the locking bulge, and the inner locking bulge can be realized.
As a further improvement of the invention, the pressure regulating cavity is arranged in the inner connecting column, and is coaxially arranged with the connecting column, wherein the front end of the pressure regulating cavity is provided with a pressurizing port, the tail end of the pressure regulating cavity is provided with a pressure regulator, the side wall of the pressure regulating cavity and the inner wall of the inner pressure cavity are of an integrated structure, and the pressure regulating cavity is connected with the inner pressure cavity through an inner pressurizing valve; the pressure regulating cavity can reduce the load of the hydraulic machine or the air compressor, provide stable oil pressure or air pressure for the locking bearing to ensure the stable rotation of the bearing, simultaneously ensure the sensitivity of the locking connecting mechanism, shorten the pressurizing time of the pressure required by locking, and simultaneously ensure the lubrication pressure to the bearing.
As a further improvement of the invention, the pressure regulator comprises a plunger cavity arranged at the tail end of the inner connecting column, the front end of the plunger cavity is communicated with the pressure regulating cavity through a flow limiting pipe, a floating piston is connected in the plunger cavity in a sealing way, a pre-pressing piston is connected at the tail end of the plunger cavity in a sliding way, the pre-pressing piston is connected with the plunger cavity in a sliding way through a sliding key arranged on the inner wall of the plunger cavity in a sliding way, the floating piston is connected with the pre-pressing piston through a relaxation spring in a supporting way, an adjusting bolt is connected at the tail end of the plunger cavity in a rotating way, and an adjusting screw sleeve in threaded connection with the adjusting bolt is arranged at the middle part of the pre-pressing piston; the pressure regulator can be used for pressure regulation through threads, so that the oil pressure or the air pressure in the bearing can be changed when the air pressure and the oil press do not work, the flexible regulation of the locking sensitivity of the bearing can be realized, the filling quantity of hydraulic oil can be reduced by smaller pre-pressure, the rolling resistance of the bearing can be reduced, and the higher pre-pressure can ensure the locking sensitivity of the bearing.
As a further improvement of the invention, a connecting inner ring is concentrically fixed on the inner wall of the outer connecting ring, a sealing ring A is arranged at the front end of the outer connecting ring, the inner circle of the sealing ring A is in sealing connection with the outer wall of the inner connecting column through a sealing component A, the front end of the connecting inner ring is in sealing and fixing connection with the middle part of the sealing ring A through fixing screws A arranged in an annular array, a sealing ring B is connected at the tail end of the outer connecting ring through fixing screws B arranged in an annular array, the inner circle of the sealing ring B is in sealing connection with the outer wall of the inner connecting column through a sealing component B, and the outer pressure cavity is arranged between the outer wall of the connecting inner ring and the inner wall of the outer connecting ring; the inner wall of the connecting inner ring is provided with a sealing ring E, and two groups of sealing contact pieces of the locking ring are respectively contacted with the inner rings of the sealing ring E and the sealing ring B; the outer pressure cavity of this structure is split structure, can convenient realization dismantlement and maintenance.
As a further improvement of the invention, the external pressure valve is a throttle valve, the tail end of the external pressure valve is fixedly connected with the external connecting ring, the front end of the external pressure valve is provided with a liquid discharge needle A, the side wall of the liquid discharge needle A is provided with a liquid discharge hole A, the liquid discharge needle A is provided with a supporting sleeve A, the two ends of the supporting sleeve A are respectively contacted with the outer wall of the connecting inner ring and the inner wall of the external connecting ring, and the side wall of the supporting sleeve A is provided with an auxiliary liquid discharge hole A communicated with the liquid discharge hole A; the outer pressurization valve is a throttle valve, the pressure is lifted by adopting a throttling pressurization method, and the support sleeve arranged at the end part of the liquid discharge needle provides effective support for the outer pressure cavity.
As a further improvement of the invention, the outer wall of the inner connecting column is concentrically fixed with a connecting outer ring, the front end of the inner connecting column is provided with a sealing ring C, the front end of the connecting outer ring is fixedly connected with the sealing ring C through fixing screws C arranged in an annular array, the tail end of the connecting outer ring is provided with a sealing ring D, the sealing ring D is fixedly connected with the tail end of the inner connecting column through fixing screws D arranged in an annular array, and the inner pressure cavity is arranged between the inner wall of the connecting outer ring and the outer wall of the inner connecting column; the internal pressure cavity is of a split structure, and is convenient to detach and maintain.
As a further improvement of the invention, the inner pressurizing valve is a throttle valve, the tail end of the inner pressurizing valve is fixedly connected with the inner connecting column, the front end of the inner pressurizing valve is provided with a liquid discharging needle B, the side wall of the liquid discharging needle B is provided with a liquid discharging hole B, the liquid discharging needle B is provided with a supporting sleeve B, the two ends of the supporting sleeve B are respectively in sealing contact with the outer wall of the inner connecting column and the inner wall of the connecting outer ring, and the side wall of the supporting sleeve B is provided with an auxiliary liquid discharging hole B communicated with the liquid discharging hole B; the internal pressurizing valve is a throttle valve, the pressure is improved by adopting a throttling pressurizing method, and the supporting sleeve arranged at the end part of the liquid discharge needle provides effective support for the internal pressure cavity.
As a further improvement of the invention, the sealing assembly a comprises a sealing reed arranged between a sealing ring a and a sealing ring C, a sealing gap a is arranged between the sealing ring a and the outer wall of an inner connecting column, a sealing gap B is arranged between the sealing ring a and the sealing ring C, the cross section of the sealing reed is L-shaped, the sealing reed comprises two groups of sealing rings which are mutually perpendicular and have wave-shaped cross sections, namely a sealing ring a and a sealing ring B, the sealing ring a is pressed in the sealing gap a, and the sealing ring B is pressed in the sealing gap B; the structure adopts the L-shaped wavy sealing reed to realize sealing, the contact area of the sealing reed is small, the friction resistance is low, but the wavy structure of the sealing reed can form a plurality of accommodating cavities, the sealing reed has good effect of isolating leakage, and the sealing effect is better as the compression force applied to the sealing reed is larger.
As a further improvement of the invention, the sealing assembly A further comprises a compression ring A fixedly connected to the front end of the inner connecting column, the compression ring A and the inner connecting column are coaxially arranged, one side of the compression ring A is provided with a sealing rubber ring A, a plurality of sealing bulges A with concentric circle structures are arranged on the sealing rubber ring A in an array manner, the sealing bulges A are vertically arranged with the sealing rubber ring A, and the sealing bulges A are contacted with the outer side of the sealing ring A; the compression ring not only can adjust the compression force of the sealing reed through fine adjustment of the fixing position of the compression ring, but also can additionally provide a good sealing effect.
As a further improvement of the invention, the two groups of roller mechanisms comprise a radial supporting roller mechanism and an axial supporting roller mechanism, wherein the axial supporting roller mechanism comprises an auxiliary supporting ring arranged on the outer wall of the sealing ring D, axial supporting balls are arranged between the auxiliary supporting ring and the sealing ring B, a supporting ring A for embedding the axial supporting balls is arranged on the front end surface of the auxiliary supporting ring, a supporting ring B for embedding transverse supporting balls is arranged at the tail end of the sealing ring B, and the transverse supporting balls are positioned in an annular rolling cavity A formed by the supporting ring A and the supporting ring B; the radial supporting roller mechanism comprises a supporting ring C which is arranged at the position, corresponding to the front end of the sealing ring E, of the inner wall of the connecting inner ring and used for embedding radial supporting balls, and a supporting ring D which is arranged at the outer wall of the connecting outer ring and used for embedding radial supporting balls, and the supporting ring C and the supporting ring D form an annular rolling cavity B; the roller supporting mechanism is two directions to realize the integral rotation support of the bearing, the stability is higher, the roller supporting mechanism also benefits from the detachable structure of the inner pressure cavity and the outer pressure cavity, and the roller supporting mechanism is also of a detachable structure and is convenient to maintain.
As a further improvement of the invention, the sealing component B comprises a sealing rubber ring B arranged on the inner ring of the sealing ring B, a plurality of sealing bulges B with concentric circle structures are arranged on the sealing rubber ring B in an array manner, the sealing bulges B are vertically arranged with the sealing rubber ring B, and the sealing bulges B are contacted with the outer wall of the inner connecting column; the annular sealing structure of multilayer has good pressure-resistant capability, and the annular cavity between the sealing bulges can absorb hydraulic oil to ensure lubrication, and meanwhile, the annular sealing structure of multilayer is produced to ensure sealing effect.
The beneficial effects of the invention are as follows:
the invention designs a group of locking bearings used for being arranged in the mechanical swing arm and driven by gas and liquid, a group of spring piece structures driven by gas pressure and liquid are introduced into the bearings while the rotating structure of the mechanical arm is not enlarged, when the spring piece is contracted, the surface of the spring piece can be used as a sliding contact surface, thereby ensuring good radial rotation supporting effect, when the spring piece is expanded, the spring piece can realize locking of the bearings, positioning of the mechanical arm is realized, and compared with the jaw clutch, the structure is lighter; in addition, the structure can realize driving by adopting the pneumatic tube and the hydraulic tube, and an additional driving mechanism is not required to be installed at the rotating shaft position of the swing arm, so that the structure is simpler in overall structure and higher in stability.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic transverse cross-section of the present invention;
fig. 2 is a schematic longitudinal cross-section of the present invention.
In the figure: 1. an outer connecting ring; 2. an inner connecting column; 3. connecting the inner ring; 4. connecting an outer ring; 5. an outer pressurization valve; 6. a liquid discharge needle A; 7. a supporting sleeve A; 8. an outer pressure relief vent; 9. an inner pressure relief hole; 10. an outer locking groove; 11. an inner locking groove; 12. an outer locking protrusion; 13. an inner locking protrusion; 14. an internal pressurization valve; 15. a liquid discharge needle B; 16. a supporting sleeve B; 17. a locking ring; 18. sealing the contact piece; 19. a sealing ring A; 20. a seal ring E; 21. a seal ring C; 22. a sealing ring B; 23. a sealing ring D; 24. an auxiliary support ring; 25. a compression ring A; 26. a sealing rubber ring A; 27. sealing the reed; 28. radially supporting the balls; 29. supporting the balls transversely; 30. a sealing rubber ring B; 31. a sealing rubber ring C; 32. an outer pressure chamber; 33. an internal pressure cavity; 34. a pressure regulating cavity; 35. a pressurizing port; 36. a plunger cavity; 37. a flow limiting pipe; 38. a floating piston; 39. pre-pressing a piston; 40. a relaxing spring; 41. an adjusting bolt; 42. a sliding key; 43. and (5) extending the film.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
As shown in fig. 1 and 2, the invention is a gas-liquid driven locking bearing, comprising an inner ring assembly, an outer ring assembly and a locking connection mechanism;
the outer ring assembly comprises an outer connecting ring, the front end of the outer connecting ring is integrally connected with a sealing ring A, the sealing ring A is vertically connected to the inner wall of the end part of the outer connecting ring, the tail end of the outer connecting ring is connected with a sealing ring B through locking screws arranged in an annular array, the sealing ring A is also vertically connected with a connecting inner ring coaxial with the outer connecting ring, the connecting inner ring is connected to the sealing ring A through locking screws arranged in the annular array, the inner ring of the sealing ring B is provided with a limit ring, the tail end of the connecting inner ring is contacted with the outer circle of the limit ring, an annular sealing space which is used as an outer pressure cavity is formed by the sealing ring A, the outer connecting ring B and the connecting inner ring, the outer pressure cavity is provided with a mechanism for pressurizing the outer pressure cavity, the outer pressure valve is a throttle valve, the tail end of the outer pressure valve is fixedly connected with the outer connecting ring, the front end of the outer pressure valve is provided with a liquid discharging needle A, the side wall of the liquid discharging needle A is provided with a supporting sleeve A, two ends of the supporting sleeve A are respectively communicated with the inner wall of the connecting ring A and the liquid discharging hole A or the auxiliary liquid discharging hole A is provided with the auxiliary liquid discharging hole A through the outer pressure cavity and the outer pressure cavity A;
an annular bulge surface is arranged on one side of the outer connecting ring, and the annular bulge surface is mainly used for press fitting of the bearing.
The inner ring assembly main body comprises a cylindrical inner connecting column, wherein a cylindrical inner hole can be arranged at the front end of the inner connecting column, or a flange ring is integrally arranged at the front end of the inner connecting column and is used for realizing the connection of bearing inner rings in different forms; the pressure regulating cavity is arranged in the inner connecting column and is coaxially arranged with the connecting column, wherein a pressurizing port is arranged at the tail end of the pressure regulating cavity, a pressure regulator is arranged at the front end of the pressure regulating cavity, the side wall of the pressure regulating cavity and the inner wall of the inner pressure cavity are of an integrated structure, and the pressure regulating cavity is connected with the inner pressure cavity through an inner pressurizing valve; the pressure regulator comprises a plunger cavity arranged at the tail end of the inner connecting column, the front end of the plunger cavity is communicated with the pressure regulating cavity through a flow limiting pipe, a floating piston is connected in the plunger cavity in a sealing way, the tail end of the plunger cavity is connected with a pre-pressing piston in a sliding way, the pre-pressing piston is connected with the plunger cavity in a sliding way through a sliding key arranged on the inner wall of the plunger cavity in a sliding way, the floating piston is connected with the pre-pressing piston through a relaxation spring support, an adjusting bolt is connected at the tail end of the plunger cavity in a rotating way, and an adjusting screw sleeve in threaded connection with the adjusting bolt is arranged in the middle of the pre-pressing piston;
a connecting outer ring is concentrically arranged outside the inner connecting column, a gap is formed between the connecting outer ring and the outer wall of the inner connecting column, a sealing ring D is integrally arranged on the inner wall of the tail end of the connecting outer ring, the sealing ring D is fixed to the tail end of the inner connecting column, meanwhile, a sealing ring C is arranged at the front end of the inner connecting column, the sealing ring C is fixedly connected with the front end of the outer connecting ring through a plurality of locking screws, an inner pressure cavity is formed between the connecting outer ring and the outer wall of the inner connecting column through the support of the sealing ring C and the sealing ring D, an inner pressurizing valve is arranged on the inner side of the inner pressure cavity, namely the inner connecting column, the inner pressurizing valve realizes the communication between the inner pressure cavity and the pressure regulating cavity, the inner pressurizing valve is a throttling valve, the tail end of the inner pressurizing valve is fixedly connected with the inner connecting column, a liquid draining needle B is arranged at the front end of the inner pressurizing valve, a liquid draining hole B is arranged on the side wall of the liquid draining needle B, two ends of the supporting sleeve B are respectively in sealing contact with the outer wall of the outer ring and the inner wall of the connecting outer ring through a plurality of locking screws, an auxiliary liquid draining hole B is arranged on the side wall of the supporting sleeve B, and the liquid draining hole B is communicated with the auxiliary liquid draining hole B or the liquid draining hole B is released through the auxiliary liquid draining hole B;
the locking connection mechanism comprises a pressure cavity arranged between the connecting inner ring and the connecting outer ring, a locking ring is arranged in the pressure cavity, a locking part with a wavy cross section is stamped and processed in the middle of the locking ring, wherein the upper part of the wavy bulge is an outer locking bulge, the lower part of the wavy bulge is an inner locking bulge, a deformation groove with an elliptical opening is processed between the upper part and the lower part of the wavy bulge, an extension film is inlaid in the deformation groove, protruding sheets are arranged on the front side and the back side of the extension film, and the protruding sheets are in contact with the inner ring and the outer ring of the locking ring; wherein, a plurality of inner locking grooves corresponding to the inner locking protrusions are annularly arranged on the inner wall of the inner pressure cavity of the inner ring assembly in an array manner; a plurality of outer locking grooves corresponding to the outer locking protrusions are annularly arranged on the inner wall of the outer pressure cavity of the outer ring assembly in an array manner; wherein, the outer wall of the inner pressure cavity, namely the outer connecting ring is provided with a plurality of inner pressure relief holes in an array manner for pressurizing the outer locking bulges; the inner wall of the outer pressure cavity, namely the connecting inner ring is provided with a plurality of outer pressure relief holes in an array manner, and the outer pressure relief holes are used for pressurizing the inner locking bulges;
the two transverse ends of the locking ring are respectively provided with a sealing contact piece in a stamping way, wherein the inner wall of the front end of the connecting inner ring is provided with a sealing ring C, the sealing contact piece at the front end is tightly contacted with the sealing ring C, and the sealing contact piece at the rear end is contacted with the limit ring of the inner ring of the sealing ring B; the sealing contact of the sealing contact piece enables the inner side and the outer side of the locking ring to form two mutually independent pressure cavity structures, and the locking ring is twisted through pressurization in different directions, so that the locking of the bearing is realized.
In addition, in order to ensure the sealing effect of the integral structure, the inner circle of the sealing ring A is in sealing connection with the outer wall of the inner connecting column through the sealing assembly A, the sealing assembly A comprises a sealing reed arranged between the sealing ring A and the sealing ring C, a sealing gap A is arranged between the sealing ring A and the outer wall of the inner connecting column, a sealing gap B is arranged between the sealing ring A and the sealing ring C, the cross section of the sealing reed is L-shaped, the sealing reed comprises two groups of sealing rings with mutually perpendicular cross sections in a wave structure, namely a sealing ring A and a sealing ring B, the sealing ring A is pressed in the sealing gap A, and the sealing ring B is pressed in the sealing gap B; the sealing assembly A further comprises a compression ring A fixedly connected to the front end of the inner connecting column, the compression ring A and the inner connecting column are coaxially arranged, one side of the compression ring A is provided with a sealing rubber ring A, a plurality of sealing bulges A with concentric circles are arranged on the sealing rubber ring A in an array manner, the sealing bulges A are perpendicular to the sealing rubber ring A, and the sealing bulges A are in contact with the outer side of the sealing ring A; the inner circle of the sealing ring B is in sealing connection with the outer wall of the inner connecting column through a sealing assembly B, the sealing assembly B comprises a sealing rubber ring B arranged on the inner circle of the sealing ring B, a plurality of sealing bulges B with concentric circle structures are arranged on the sealing rubber ring B in an array manner, the sealing bulges B are vertically arranged with the sealing rubber ring B, and the sealing bulges B are in contact with the outer wall of the inner connecting column;
the outer ring of the auxiliary supporting ring is also provided with an annular tail end sealing bulge, the tail end sealing bulge is provided with an annular sealing rubber ring C, the sealing rubber ring C is provided with a plurality of sealing bulges C with concentric circle structures in an array manner, the sealing bulges C are vertically arranged with the sealing rubber ring C, and the sealing bulges C are in contact with the sealing ring B.
In addition, in order to ensure the rotation stability of the bearing, the bearing is also provided with two groups of roller mechanisms, namely a radial supporting roller mechanism and an axial supporting roller mechanism, wherein the axial supporting roller mechanism comprises an axial supporting ball arranged between an auxiliary supporting ring and a sealing ring B, the front end surface of the auxiliary supporting ring is provided with a supporting ring A for embedding the axial supporting ball, the tail end of the sealing ring B is provided with a supporting ring B for embedding a transverse supporting ball, and the transverse supporting ball is positioned in an annular rolling cavity A formed by the supporting ring A and the supporting ring B; the radial supporting roller mechanism comprises a supporting ring C which is arranged at the position, corresponding to the front end of the sealing ring E, of the inner wall of the connecting inner ring and used for embedding radial supporting balls, and a supporting ring D which is arranged at the outer wall of the connecting outer ring and used for embedding radial supporting balls, and the supporting ring C and the supporting ring D form an annular rolling cavity B.
When the structure is assembled, firstly, a compression ring A positioned at the front end of an inner connecting column is removed, a sealing reed is sleeved on a sealing ring C, then the whole outer connecting ring is sleeved on the inner connecting column, so that the inner ring of the sealing ring A is elastically contacted with the sealing ring C through the sealing reed, then the compression ring A is pressed through interference fit to realize the supporting and fixing of the sealing ring A, meanwhile, the supporting and fixing of the outer connecting ring are realized, then the inner ring is connected through a locking screw, a supporting sleeve A is arranged between the inner ring and the outer connecting ring in advance during installation, a radial supporting ball is arranged while the inner ring is connected, after that, an outer pressurizing valve is screwed in, so that a drain needle A is inserted into the supporting sleeve A, the tail end of the drain needle A is fixed on the outer wall of the inner ring through threads, then the locking ring is plugged in, and the sealing ring B is connected to the tail end of the outer connecting ring through the locking screw; then, after the outer wall of the inner connecting column is fixed by a sealant pre-fixing support sleeve B, an inner rotor sealing member integrally formed by a connecting outer ring, a sealing ring D and an auxiliary support ring is installed in the inner ring of the sealing ring B, a transverse support ball mechanism is installed at the same time, and finally, the sealing ring D and the tail end of the inner connecting column are fixed by locking threads; the installation of the inner ring mechanism and the outer ring mechanism is realized, the pressure regulating valve is screwed in the tail end of the inner connecting column after that, meanwhile, the connecting block of the whole pressurizing port connected with the pressurizing port is removed, the inner pressurizing valve is installed through a spanner, the liquid discharging needle B is inserted into the supporting sleeve B, the end part of the liquid discharging needle B is fixed on the inner wall of the connecting outer ring through threads, and finally, the pressurizing port structure is installed back, so that the integral assembly of the bearing is realized; meanwhile, sealant can be smeared at the contact surface position of each locking screw connection so as to ensure the sealing and pressure-proof effects of the whole bearing;
when the hydraulic pressure regulating device is used, the outer connecting ring is mounted on the bearing seat, then the rotating shaft of the swing arm is connected to the front end of the inner connecting column through the flange, and the pre-pressing pressure of the pressure regulator, namely the pressure regulating valve, is regulated according to the pre-pressing of the weight of the swing arm before the installation, so that good hydraulic pressure is ensured; then connecting an air pressure pipe or a hydraulic pipe on the pressurizing port, connecting the air pressure pipe or the hydraulic pipe on each outer pressurizing valve through a pipe separator, carrying out differential pressurizing on the outer pressure cavity and the inner pressure cavity through the pressurizing pipe, transmitting the pressure of the outer pressure cavity and the pressure of the inner pressure cavity to two sides of the locking ring through the outer pressure release hole and the inner pressure release hole, wherein when the bearing rotates normally, the main rotation supporting force is provided by a radial supporting roller mechanism and an axial supporting roller mechanism, and the auxiliary rotation supporting force and lubrication are provided by the oil pressure or the air pressure positioned at two sides of the locking ring, and when the rotation resistance is required to be provided, the pressure of the inner pressurizing valve or the outer pressurizing valve can be increased unidirectionally, so that the locking ring is deformed gradually from the middle part to two sides in the axial direction, and the locking ring is embedded into the connecting inner ring or the connecting outer ring, so that the wave mechanism at one side of the locking ring provides larger flow resistance; when the swing is finished and locking is needed, the pressure of the external pressure valve and the internal pressure valve can be instantaneously improved, at the moment, the locking ring can be deformed gradually from the middle part towards the two sides of the axial direction, the radian of the external locking bulge and the radian of the internal locking bulge of the locking ring are further increased, the curvature is increased, the external locking bulge is embedded into the external locking groove, and meanwhile the internal locking bulge is embedded into the internal locking groove, so that the axial locking of the connecting inner ring and the connecting outer ring is realized, and the locking of the bearing is realized.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A gas-liquid driven locking bearing is characterized in that: the device comprises an inner ring assembly, an outer ring assembly and a locking connection mechanism; the inner ring assembly comprises an inner connecting column, an annular inner pressure cavity is arranged on the outer layer of the inner connecting column, and a plurality of inner pressurizing valves are arranged on the inner side of the inner pressure cavity in an annular array; the outer ring assembly comprises an outer connecting ring, an annular outer pressure cavity is arranged in the inner layer of the outer connecting ring, and a plurality of outer pressurizing valves are arranged on the outer side of the outer pressure cavity in an annular array; the inner ring assembly and the outer ring assembly are rotationally connected through two groups of roller mechanisms; the locking connection mechanism comprises two groups of sealing rings arranged on the inner wall of the outer ring assembly, and the inner circle of each sealing ring is in sliding sealing connection with the outer wall of the inner pressure cavity of the inner ring assembly; the locking connection mechanism further comprises a locking ring arranged between the inner ring assembly and the outer ring assembly, two groups of sealing contact pieces are integrally stamped at two transverse ends of the locking ring, and the sealing contact pieces are in sliding sealing contact with the side wall of the sealing ring; the middle part of the locking ring is provided with a locking part with a wavy cross section, wherein the upper part of the wavy bulge is an outer locking bulge, the lower part of the wavy bulge is an inner locking bulge, a deformation groove with an elliptical opening is formed between the upper part and the lower part of the wavy bulge, an extension film is inlaid in the deformation groove, the front side and the back side of the extension film are provided with bulge sheets, and the bulge sheets are in contact with the inner ring and the outer ring of the locking ring; wherein, a plurality of inner locking grooves corresponding to the inner locking protrusions are annularly arranged on the inner wall of the inner pressure cavity of the inner ring assembly in an array manner; a plurality of outer locking grooves corresponding to the outer locking protrusions are annularly arranged on the inner wall of the outer pressure cavity of the outer ring assembly in an array manner; wherein, the outer wall array of the inner pressure cavity is provided with a plurality of inner pressure relief holes for pressurizing the outer locking bulges; the inner wall array of the outer pressure cavity is provided with a plurality of outer pressure relief holes for pressurizing the inner locking bulges;
the pressure regulating cavity is arranged in the inner connecting column and is coaxial with the connecting column, wherein a pressurizing port is arranged at the tail end of the pressure regulating cavity, a pressure regulator is arranged at the front end of the pressure regulating cavity, the side wall of the pressure regulating cavity and the inner wall of the inner pressure cavity are of an integrated structure, and the pressure regulating cavity is connected with the inner pressure cavity through an inner pressurizing valve;
a connecting inner ring is concentrically fixed on the inner wall of the outer connecting ring, a sealing ring A is arranged at the front end of the outer connecting ring, the inner circle of the sealing ring A is in sealing connection with the outer wall of the inner connecting column through a sealing component A, the front end of the connecting inner ring is in sealing and fixed connection with the middle part of the sealing ring A through fixing screws A arranged in an annular array, a sealing ring B is connected at the tail end of the outer connecting ring through fixing screws B arranged in an annular array, the inner circle of the sealing ring B is in sealing connection with the outer wall of the inner connecting column through a sealing component B, and an outer pressure cavity is arranged between the outer wall of the connecting inner ring and the inner wall of the outer connecting ring; the inner wall of the connecting inner ring is provided with a sealing ring E, and two groups of sealing contact pieces of the locking ring are respectively contacted with the inner rings of the sealing ring E and the sealing ring B.
2. A gas-liquid driven locking bearing as defined in claim 1, wherein: the pressure regulator comprises a plunger cavity arranged at the tail end of an inner connecting column, wherein the front end of the plunger cavity is communicated with the pressure regulating cavity through a flow limiting pipe, a floating piston is connected in the plunger cavity in a sealing manner, the tail end of the plunger cavity is connected with a pre-pressing piston in a sliding manner, the pre-pressing piston is connected with the plunger cavity in a sliding manner through a sliding key arranged on the inner wall of the plunger cavity in a sliding manner, the floating piston is connected with the pre-pressing piston through a relaxation spring in a supporting manner, an adjusting bolt is connected at the tail end of the plunger cavity in a rotating manner, and an adjusting screw sleeve in threaded connection with the adjusting bolt is arranged in the middle of the pre-pressing piston.
3. A gas-liquid driven locking bearing as defined in claim 1, wherein: the external pressure valve is a throttle valve, the tail end of the external pressure valve is fixedly connected with the external connecting ring, the front end of the external pressure valve is provided with a liquid discharge needle A, the side wall of the liquid discharge needle A is provided with a liquid discharge hole A, the liquid discharge needle A is provided with a support sleeve A, two ends of the support sleeve A are respectively contacted with the outer wall of the connecting inner ring and the inner wall of the external connecting ring, and the side wall of the support sleeve A is provided with an auxiliary liquid discharge hole A communicated with the liquid discharge hole A.
4. A gas-liquid driven locking bearing as defined in claim 1, wherein: the outer wall of the inner connecting column is concentrically fixed with a connecting outer ring, the front end of the inner connecting column is provided with a sealing ring C, the front end of the connecting outer ring is fixedly connected with the sealing ring C through fixing screws C arranged in an annular array, the tail end of the connecting outer ring is provided with a sealing ring D, the sealing ring D is fixedly connected with the tail end of the inner connecting column through fixing screws D arranged in an annular array, and the inner pressure cavity is arranged between the inner wall of the connecting outer ring and the outer wall of the inner connecting column.
5. A gas-liquid driven locking bearing as defined in claim 4, wherein: the inner pressurizing valve is a throttle valve, the tail end of the inner pressurizing valve is fixedly connected with the inner connecting column, a liquid draining needle B is arranged at the front end of the inner pressurizing valve, a liquid draining hole B is formed in the side wall of the liquid draining needle B, a supporting sleeve B is arranged on the liquid draining needle B, two ends of the supporting sleeve B are respectively contacted with the outer wall of the inner connecting column and the inner wall of the connecting outer ring, and an auxiliary liquid draining hole B communicated with the liquid draining hole B is formed in the side wall of the supporting sleeve B.
6. A gas-liquid driven locking bearing as defined in claim 4, wherein: the sealing assembly A comprises a sealing reed arranged between a sealing ring A and a sealing ring C, a sealing gap A is arranged between the sealing ring A and the outer wall of an inner connecting column, a sealing gap B is arranged between the sealing ring A and the sealing ring C, the cross section of the sealing reed is L-shaped, the sealing reed comprises two groups of sealing rings with mutually perpendicular cross sections in wave structures, namely a sealing ring A and a sealing ring B, the sealing ring A is pressed in the sealing gap A, and the sealing ring B is pressed in the sealing gap B.
7. A gas-liquid driven locking bearing as defined in claim 6, wherein: the sealing assembly A further comprises a compression ring A fixedly connected to the front end of the inner connecting column, the compression ring A and the inner connecting column are coaxially arranged, one side of the compression ring A is provided with a sealing rubber ring A, a plurality of sealing bulges A with concentric circle structures are arranged on the sealing rubber ring A in an array mode, the sealing bulges A are perpendicular to the sealing rubber ring A, and the sealing bulges A are in contact with the outer side of the sealing ring A.
8. A gas-liquid driven locking bearing as defined in claim 4, wherein: the two groups of roller mechanisms comprise a radial supporting roller mechanism and an axial supporting roller mechanism, wherein the axial supporting roller mechanism comprises an auxiliary supporting ring arranged on the outer wall of a sealing ring D, an axial supporting ball is arranged between the auxiliary supporting ring and the sealing ring B, a supporting ring A for embedding the axial supporting ball is arranged on the front end surface of the auxiliary supporting ring, a supporting ring B for embedding a transverse supporting ball is arranged at the tail end of the sealing ring B, and the transverse supporting ball is positioned in an annular rolling cavity A formed by the supporting ring A and the supporting ring B; the radial supporting roller mechanism comprises a supporting ring C which is arranged at the position, corresponding to the front end of the sealing ring E, of the inner wall of the connecting inner ring and used for embedding radial supporting balls, and a supporting ring D which is arranged at the outer wall of the connecting outer ring and used for embedding radial supporting balls, and the supporting ring C and the supporting ring D form an annular rolling cavity B.
9. A gas-liquid driven locking bearing as defined in claim 1, wherein: the sealing assembly B comprises a sealing rubber ring B arranged on an inner ring of the sealing ring B, a plurality of sealing bulges B with concentric circle structures are arranged on the sealing rubber ring B in an array mode, the sealing bulges B are perpendicular to the sealing rubber ring B, and the sealing bulges B are in contact with the outer wall of the inner connecting column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910586210.6A CN110173510B (en) | 2019-07-01 | 2019-07-01 | Gas-liquid driven locking bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910586210.6A CN110173510B (en) | 2019-07-01 | 2019-07-01 | Gas-liquid driven locking bearing |
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| CN110173510A CN110173510A (en) | 2019-08-27 |
| CN110173510B true CN110173510B (en) | 2024-02-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459580A (en) * | 2002-05-24 | 2003-12-03 | 达纳公司 | Mechanism for operating and locking external ring of rolling bearing with screw |
| CN105443571A (en) * | 2015-12-26 | 2016-03-30 | 广东瑞荣泵业有限公司 | Water-lubricating thrust bearing of submersible motors for wells |
| CN106062423A (en) * | 2013-12-13 | 2016-10-26 | 舍弗勒技术股份两合公司 | Torque converter including stator thrust bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20011110A1 (en) * | 2001-11-28 | 2003-05-28 | Skf Ind Spa | DEVICE FOR LOCKING A BEARING IN A WHEEL HUB. |
-
2019
- 2019-07-01 CN CN201910586210.6A patent/CN110173510B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459580A (en) * | 2002-05-24 | 2003-12-03 | 达纳公司 | Mechanism for operating and locking external ring of rolling bearing with screw |
| CN106062423A (en) * | 2013-12-13 | 2016-10-26 | 舍弗勒技术股份两合公司 | Torque converter including stator thrust bearing |
| CN105443571A (en) * | 2015-12-26 | 2016-03-30 | 广东瑞荣泵业有限公司 | Water-lubricating thrust bearing of submersible motors for wells |
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