CN113790220A

CN113790220A - Ultra-light multifunctional hydraulic coupler

Info

Publication number: CN113790220A
Application number: CN202111045275.3A
Authority: CN
Inventors: 吴亚东
Original assignee: Wuxi Honghailong Marine Machinery Co ltd
Current assignee: Wuxi Honghailong Marine Machinery Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-12-14
Anticipated expiration: 2041-09-07
Also published as: CN113790220B

Abstract

The invention belongs to the field of couplings, in particular to an ultra-light multifunctional hydraulic coupling, which comprises an outer sleeve and an inner sleeve, wherein a hydraulic cavity is arranged on the inner peripheral surface of the outer sleeve, a valve body is arranged at the port of the hydraulic cavity, a shearing cap is arranged on the valve body, a shearing ring is fixedly sleeved on the outer side of the inner sleeve, a coaming plate surrounding the outer side of a cutting head is fixedly arranged on the outer side of the outer sleeve, and a collecting box is fixedly arranged on the coaming plate; the device has saved the piston chamber of conventional shaft coupling and accessory thereof, the self weight of shaft coupling has been reduced, dial the board on the shearing ring and contact with the piston rod, it promotes the piston rod and removes to dial the board, make the aspiration cylinder bleed to the cushion, form the negative pressure, make the shape of cushion fixed, and then the shearing cap that will cut is tightly hooped, the function of collecting the shearing cap has been realized, avoid the shearing cap to rock at will simultaneously, it probably drops to have improved the shearing cap, collision everywhere, the problem that noise and collision are collided with and are decreased.

Description

Ultra-light multifunctional hydraulic coupler

Technical Field

The invention belongs to the field of couplings, and particularly relates to an ultra-light multifunctional hydraulic coupling.

Background

The hydraulic coupling is a power transmission device, can be flexibly combined with other various transmission parts for use, and realizes power transmission.

Some technical schemes related to the hydraulic coupling also appear in the prior art, for example, a chinese patent with application number 202022391240.2 discloses a hydraulic safety coupling, which comprises an expansion sleeve, a hydraulic shell, a deep groove ball bearing and a plug, the hydraulic sealing device comprises a shearable safety valve, an end cover, a sealing assembly and a shearing ring, wherein the expanding sleeve is sleeved in a hydraulic shell, a closed hydraulic cavity is enclosed between the expanding sleeve and the hydraulic shell, deep groove ball bearings are arranged at two ends of the hydraulic cavity, at least one hydraulic through hole communicated with the hydraulic cavity is further processed on the hydraulic shell, the shearable safety valve is arranged in the hydraulic through hole, the end cover which enables the expanding sleeve to be connected with a transmission part is arranged on the deep groove ball bearing at one end of the expanding sleeve, the sealing cover which blocks the end cover is arranged on the hydraulic shell at the outer side of the end cover, the sealing assembly is sleeved on the deep groove ball bearing at the other side of the expanding sleeve, and the shearing ring is sleeved on the outer side of the sealing assembly. The utility model discloses a set up the tight cover of suit in the hydraulic pressure casing, can make the safe moment of torsion of drive disk assembly can make the casing and the tight cover of expanding realize the separation in the twinkling of an eye after surpassing the default to can prevent that moment of inertia from causing equipment damage.

When the safety torque of a transmission part exceeds a preset value, a safety valve or an oil filling pipe for controlling hydraulic pressure is cut off, however, cut parts are not effectively collected, and the cut parts fall under the inertia force, possibly damage other parts or clamp gaps among the parts to cause blockage, and further work and subsequent cleaning of the coupling are troublesome.

Therefore, the invention provides an ultra-light multifunctional hydraulic coupling.

Disclosure of Invention

The invention provides an ultra-light multifunctional hydraulic coupler, which aims to make up the defects of the prior art and solve the problems that a safety valve on the hydraulic coupler is not effectively collected after being sheared and the coupler is easily damaged or blocked.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an ultra-light multifunctional hydraulic coupling, which comprises an outer sleeve and an inner sleeve, wherein a hydraulic cavity is arranged on the inner peripheral surface of the outer sleeve, a valve body is arranged at the port of the hydraulic cavity, a shearing cap is arranged on the valve body, a shearing ring is fixedly sleeved on the outer side of the inner sleeve, a cutting head corresponding to the shearing cap is fixedly arranged on the outer side of the shearing ring, a collecting device is arranged on the outer sleeve, when the coupling works, the inner sleeve is arranged on the transmission component, the outer sleeve is connected with the driven component, the hydraulic cavity is connected with the pressure pump, after the hydraulic cavity is filled with hydraulic oil, the hydraulic cavity is blocked by the valve body, the pressure in the hydraulic cavity is adjusted by the pressure pump, the inner sleeve is pressed by the pressure of the hydraulic cavity to generate elastic deformation and tightly hold the transmission component, then, the transmission part is started, and the driven equipment is driven by the inner sleeve and the outer sleeve, so that the function that the driven part and the transmission part are linked by the coupler is realized; after the safe torque of the transmission part exceeds the preset value, a differential speed is formed between the shearing ring and the outer sleeve, the shearing ring and the outer sleeve rotate relatively, the shearing cap on the valve body is cut off by the cutting head on the shearing ring, hydraulic oil in the hydraulic cavity is quickly discharged through the disconnected valve body, the pressure of the inner sleeve is reduced, the shape of the inner sleeve is recovered, the coupling is separated instantly, the transmission part and the driven part are protected, the piston cavity and the auxiliary accessories of a conventional coupling are omitted, the self weight of the coupling is reduced, the collection device collects the cut shearing cap, the problem that the shearing cap falls after being cut off and possibly damages or blocks the coupling is solved.

Preferably, the collecting device comprises a coaming which is fixedly arranged on the outer side of the outer sleeve, the coaming is encircled on the outer side of the cutting head, and a collecting box is fixedly arranged on the coaming; during operation, after transmission member's safe moment of torsion exceeded the default, the shearing ring is rotatory for the overcoat, cuts off the shearing cap on the valve body, blocks the shearing cap through the bounding wall for the shearing cap drops in collecting the box, has realized collecting the function of shearing cap, has improved the shearing cap that is cut and has dropped wantonly, may cause the problem of colliding with damage or jam to other parts.

Preferably, the discharge hole that corresponds with the valve body is seted up to the top of bounding wall, and the size of discharge hole is less than the size of shearing the cap to avoid shearing the cap and falling out from the discharge hole, after the shearing cap is sheared, the hydraulic oil in the hydraulic pressure intracavity is discharged through the discharge hole, through setting up the discharge hole, guarantees that the discharge of hydraulic oil is unimpeded.

Preferably, an elastic pad is arranged on the inner wall of the collecting box, friction particles are filled between the collecting box and the elastic pad, an air pumping cylinder for pumping air to the elastic pad is arranged on the outer side of the collecting box, a piston rod is arranged in the air pumping cylinder, and a shifting plate corresponding to the piston rod is arranged on the outer side of the shearing ring; during operation, the friction powder can adopt granule such as coffee powder, the friction powder is the mobile form of dispersion under the initial condition, cushion and friction powder take place deformation easily, the shearing cap is lived to the parcel that can be better, then dial the board on the shearing ring and contact with the piston rod, it promotes the piston rod and removes to dial the board, make the pump bowl bleed to the cushion, form the negative pressure, make the shape of cushion fixed, and then will cut the cap and tightly hoop, avoid it to rock at will, the shearing cap that has improved and has cut off probably, the collision everywhere, the problem of noise generation and collision damage of colliding with.

Preferably, the outer side of the cutting head is rotatably provided with a push plate, the interior of the cutting head is slidably provided with a positioning plate, the positioning plate is movably connected with the push plate, and the positioning plate is provided with an elastic telescopic piece; the during operation, the locating plate keeps the position stable under elastic expansion piece's pulling, stimulate the push pedal simultaneously, make its keep the position stable, when shearing ring and overcoat relative rotation, cut off the back with the shearing cap, the push pedal can intercept the shearing cap, and will cut the cap and promote to collect in the box, further guaranteed the entering that the shearing cap can be smooth and collected in the box, and simultaneously, elastic expansion piece has the cushioning effect to the push pedal, it can not rotate to have improved the push pedal, the problem that the push pedal bumps with collecting the box and takes place the rupture to damage probably appears.

Preferably, the bottom fixed mounting of locating plate has the extension board that stretches out to the cutting head outside, the outside fixed mounting of overcoat has the fixed plate that corresponds with the extension board, in operation, after shearing ring and overcoat relative rotation, it cuts off the cap to be the cutting head earlier, the push pedal will be cut the cap and push into in the collection box, before the push pedal contacts with the collection box, extension board and fixed plate contact, the extension board is extruded by the fixed plate, it takes place the displacement to drive the locating plate, the locating plate drives the push pedal and deflects downwards, the push pedal deflects the back and staggers from top to bottom with the collection box, the push pedal can not contact with the collection box, the easy problem that produces the damage after having improved the push pedal and having collected the box contact, the service life of push pedal has been prolonged.

Preferably, the elastic telescopic piece comprises a telescopic rod, the telescopic rod and the positioning plate are obliquely arranged, and a supporting pressure spring is arranged on the telescopic rod; when the shearing ring works, the telescopic rod is kept in a stable inclined state under the pushing of the supporting pressure spring, so that the positioning plate and the push plate are kept stable, and the problem that the positioning plate and the push plate are easy to shake when the shearing ring rotates is solved; when the extension plate contacts with the fixed plate and the positioning plate displaces to drive the push plate to deflect downwards, the positioning plate drives the elastic expansion piece to deflect to the other side, and the elastic expansion piece can continue to keep a stable inclined state after deflecting, so that the push plate maintains a state of deflecting downwards, and the problem that the push plate can rotate upwards and collide with the collection box is solved.

Preferably, the valve body is mounted on the outer sleeve through a bolt piece, a centrifugal plate and a driven plate are movably mounted in the extension plate in a sliding mode, return springs are mounted on the centrifugal plate and the driven plate respectively, the centrifugal plate and the driven plate are in transmission connection through a gear piece, a pressing plate is fixedly mounted at the bottom of the driven plate and located on the outer side of the extension plate, the pressing plate is aligned to the bolt piece in position, and a balancing weight is mounted in the centrifugal plate; under initial condition, centrifugal plate and driven plate remain stable under reset spring's effect, and the clamp plate pastes on the extension board, conveniently installs and dismantles bolt spare, when the shaft coupling work is rotatory, according to the centrifugal force formula:

in the formula, F: centrifugal force, r: radius of centrifugal motion, m: object mass, v: speed, from this can know, under the condition that rotational speed and radius are the same, the quality of object is big more, its centrifugal force is big more, through set up the balancing weight on the centrifugal plate, make the centrifugal force of centrifugal plate be greater than the centrifugal force of driven plate and clamp plate, therefore, the centrifugal plate can outwards remove under the effect of centrifugal force, and drive driven plate and clamp plate inwards movement through gear spare, make the clamp plate support on the bolt spare, make it difficult not hard up drop, improved when shaft coupling work is rotatory, bolt spare is not hard up, lead to the valve body to drop and the problem of hydraulic oil leakage, the operational reliability degree of shaft coupling has been improved.

Preferably, the cutting head is U-shaped, the two ends of the cutting head are both provided with a centrifugal plate and a driven plate, the two driven plates are connected through a connecting rod, the pressing plate is arranged at one end of the cutting head far away from the collecting box, the pressing plate close to one end of the collecting box is provided with an inclined plate, and the position of the inclined plate is matched with the fixed plate; when the coupler works and rotates, the two pressure plates extend downwards and abut against the bolt pieces; when transmission part's safe moment of torsion exceeded the default, when the shear ring rotated for the overcoat, the swash plate contacted with the fixed plate earlier, the swash plate was pushed by the fixed plate and is shifted up, the swash plate drives the clamp plate and shifts up, then, contact with push pedal complex clamp plate and fixed plate, this clamp plate is pushed by the fixed plate, it takes place the displacement to drive the locating plate, make the push pedal deflect downwards, through setting up the cutting head of U-shaped, two clamp plates and swash plate, when cutting the cutting head, the clamp plate can shift up automatically, when having realized that the clamp plate is fixed the bolt spare, avoided the clamp plate to cause the condition of hindrance to the relative rotation of shear ring, guaranteed going on smoothly of shearing work.

Preferably, the connecting rod is movably arranged inside the cutting head, and a telescopic section is arranged in the connecting rod; during operation, the two pressing plates realize synchronous up-and-down movement through the connecting rod, and the pressing plates matched with the pushing plate can slide.

The invention has the following beneficial effects:

1. according to the ultra-light multifunctional hydraulic coupler, after the hydraulic cavity is filled with hydraulic oil, the hydraulic cavity is blocked through the valve body, the inner sleeve is pressed by the pressure of the hydraulic cavity to generate elastic deformation and tightly hold the transmission part, the piston cavity and the auxiliary fittings of the conventional coupler are omitted, the self weight of the coupler is reduced, when the safety torque of the transmission part exceeds a preset value, differential relative rotation is formed between the shearing ring and the outer sleeve, the shearing cap is cut off by the cutting head, the hydraulic oil in the hydraulic cavity is quickly discharged, the inner sleeve is restored to be in a shape, the coupler is separated instantly, the transmission part and the driven part are protected, the cut shearing cap is collected by the collecting device, and the problems that the shearing cap falls off after being cut off and the coupler is possibly damaged or blocked are solved.

2. According to the ultra-light multifunctional hydraulic coupling, the shifting plate on the shearing ring is in contact with the piston rod, the shifting plate pushes the piston rod to move, the air pumping cylinder is enabled to pump air to the elastic pad to form negative pressure, the shape of the elastic pad is fixed, and the sheared shearing cap is tightly hooped, so that the function of collecting the shearing cap is achieved, the problem that the sheared shearing cap is likely to be damaged or jammed is solved, meanwhile, the shearing cap is fixed, and the problems that the sheared shearing cap is likely to fall off, collide everywhere, generate noise and collide and damage are solved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view taken at D-D of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 2 in accordance with the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 3 in accordance with the present invention;

FIG. 6 is an enlarged view of portion C of FIG. 5 in accordance with the present invention;

FIG. 7 is a cross-sectional view of the collection cassette mechanism of the present invention;

FIG. 8 is a schematic view of a cutting head of the present invention;

FIG. 9 is a sectional view showing a bolt member mounting structure in accordance with a second embodiment of the present invention;

FIG. 10 is an enlarged view of portion D of FIG. 9 in accordance with the present invention;

FIG. 11 is a schematic view of the two sets of pressing plates of the present invention;

in the figure: 1. a jacket; 2. an inner sleeve; 3. a hydraulic chamber; 4. a valve body; 5. a shear cap; 6. a shear ring; 7. a cutting head; 8. enclosing plates; 9. a collection box; 10. an elastic pad; 11. rubbing the powder particles; 12. an air pumping cylinder; 13. a piston rod; 14. dialing a plate; 15. pushing the plate; 16. positioning a plate; 17. an elastic extensible member; 18. an extension plate; 19. a fixing plate; 20. a bolt member; 21. a centrifugal plate; 22. a driven plate; 23. a gear member; 24. pressing a plate; 25. a balancing weight; 26. a connecting rod; 27. a telescopic section; 28. a sloping plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to 7, the ultra-light multifunctional hydraulic coupling comprises an outer sleeve 1 and an inner sleeve 2, wherein a hydraulic cavity 3 is arranged on the inner circumferential surface of the outer sleeve 1, a valve body 4 is arranged at the port of the hydraulic cavity 3, a shearing cap 5 is arranged on the valve body 4, a shearing ring 6 is fixedly sleeved on the outer side of the inner sleeve 2, a cutting head 7 corresponding to the shearing cap 5 is fixedly arranged on the outer side of the shearing ring 6, a collecting device is arranged on the outer sleeve 1, when the coupling works, the inner sleeve 2 is arranged on a transmission part, the outer sleeve 1 is connected with a driven part, the hydraulic cavity 3 is connected with a pressure pump, after the hydraulic cavity 3 is filled with hydraulic oil, the hydraulic cavity 3 is sealed by the valve body 4, the pressure in the hydraulic cavity 3 is adjusted by the pressure pump, the pressure in the hydraulic cavity 3 presses the inner sleeve 2 to generate elastic deformation and tightly holds the transmission part, then the transmission part is started, the inner sleeve 2 and the outer sleeve 1 drive the driven equipment, so that the function of linking the driven part and the transmission part by the coupler is realized; after the safe torque of the transmission part exceeds the preset value, a differential speed is formed between the shearing ring 6 and the outer sleeve 1, the two parts rotate relatively, the shearing cap 5 on the valve body 4 is cut off by the cutting head 7 on the shearing ring 6, hydraulic oil in the hydraulic cavity 3 is quickly discharged through the disconnected valve body 4, the pressure of the inner sleeve 2 is reduced, the shape of the inner sleeve 2 is recovered, the coupling is separated instantly, the transmission part and the driven part are protected, the device omits a piston cavity and accessory parts of a conventional coupling, the self weight of the coupling is reduced, the cut shearing cap 5 is collected by the collecting device, the problem that the shearing cap 5 falls after being cut off and possibly damages or blocks the coupling is solved.

The collecting device comprises a coaming 8 fixedly arranged on the outer side of the outer sleeve 1, the coaming 8 is encircled on the outer side of the cutting head 7, and a collecting box 9 is fixedly arranged on the coaming 8; during operation, after transmission member's safe moment of torsion exceeded the default, shearing ring 6 is rotatory for overcoat 1, cuts off shearing cap 5 on the valve body 4, blocks shearing cap 5 through bounding wall 8 for shearing cap 5 drops in collecting box 9, has realized collecting the function of shearing cap 5, has improved and has been dropped wantonly by shearing cap 5 that cuts, may cause the problem of colliding with damage or jam to other parts.

The discharge hole that corresponds with valve body 4 is seted up at the top of bounding wall 8, and the size of discharge hole is less than the size of shearing cap 5 to avoid shearing cap 5 to fall out from the discharge hole, shear cap 5 is cut the back, and the hydraulic oil in the hydraulic pressure chamber 3 is discharged via the discharge hole, through setting up the discharge hole, guarantees that the discharge of hydraulic oil is unimpeded.

An elastic pad 10 is installed on the inner wall of the collecting box 9, friction particles 11 are filled between the collecting box 9 and the elastic pad 10, an air extracting cylinder 12 for extracting air from the elastic pad 10 is installed on the outer side of the collecting box 9, the air extracting cylinder 12 extracts air from the area where the friction particles 11 are located between the collecting box 9 and the elastic pad 10, a piston rod 13 is arranged in the air extracting cylinder 12, and a shifting plate 14 corresponding to the piston rod 13 is installed on the outer side of the shearing ring 6; when the friction particle 11 works, particles such as coffee powder and the like can be adopted as the friction particle 11, the friction particle 11 is in a dispersed flowing state in an initial state, and the elastic pad 10 and the friction particle 11 are easy to deform and can better wrap the shearing cap 5; in fig. 2 and 4, the distance between the dial plate 14 and the piston rod 13 is greater than the distance between the cutting head 7 and the cutting cap 5, the dial plate 14 being located at the front position of the piston rod 13; in fig. 3 and 5, after the shear ring 6 rotates counterclockwise, the cutting head 7 cuts off the shear cap 5, the shear cap 5 moves leftwards under the action of impact inertia and falls into the elastic pad 10, and the randomly deformable friction particles 11 enable the elastic pad 10 to have a buffering effect on the shear cap 5; then, along with the continuous rotation of the shearing ring 6, the stirring plate 14 on the shearing ring 6 is in contact with the piston rod 13, the stirring plate 14 pushes the piston rod 13 to move, so that the region where the friction particles 11 between the collecting box 9 and the elastic pad 10 are located is pumped by the air pumping cylinder 12 to form negative pressure, the friction particles 11 are fixed under the action of the negative pressure, the shape of the elastic pad 10 is fixed, the shearing cap 5 is tightly hooped, the random shaking of the shearing cap is avoided, and the problems that the sheared shearing cap 5 is likely to fall off, collide everywhere, generate noise and collide and damage are solved.

A push plate 15 is rotatably arranged on the outer side of the cutting head 7, a positioning plate 16 is slidably arranged in the cutting head 7, the positioning plate 16 is movably connected with the push plate 15, and an elastic telescopic part 17 is arranged on the positioning plate 16; the during operation, the locating plate 16 keeps the position stable under the pulling of elastic expansion piece 17, stimulate push pedal 15 simultaneously, make its keep the position stable, when shearing ring 6 and overcoat 1 relative rotation, cut off the back with shearing cap 5, push pedal 15 can intercept shearing cap 5, and will shear in cap 5 promotes the collection box 9, further guaranteed to shear in the entering collection box 9 that cap 5 can be smooth, and simultaneously, elastic expansion piece 17 has the cushioning effect to push pedal 15, improved push pedal 15 because of can not rotate, the problem that the breakage damage takes place for push pedal 15 and collection box 9 to collide with each other may appear.

The bottom fixed mounting of locating plate 16 has the extension board 18 that stretches out to the cutting head 7 outside, the outside fixed mounting of overcoat 1 has the fixed plate 19 that corresponds with extension board 18, in operation, after shearing ring 6 and overcoat 1 relative rotation, it cuts off shearing cap 5 earlier to be cutting head 7, push pedal 15 will cut in cap 5 pushes away collection box 9, before push pedal 15 contacts with collection box 9, extension board 18 contacts with fixed plate 19, extension board 18 is extrudeed by fixed plate 19, it takes place the displacement to drive locating plate 16, locating plate 16 drives push pedal 15 and deflects downwards, push pedal 15 deflects the back and staggers from top to bottom with collection box 9, push pedal 15 can not contact with collection box 9, the easy problem that produces the damage after push pedal 15 contacts with collection box 9 has been improved, the life of push pedal 15 has been prolonged.

The elastic expansion piece 17 comprises an expansion rod, the expansion rod and the positioning plate 16 are obliquely arranged, and a supporting pressure spring is arranged on the expansion rod; when the shearing mechanism works, the telescopic rod is kept in a stable inclined state under the pushing of the supporting pressure spring, so that the positioning plate 16 and the push plate 15 are kept stable, and the problem that the positioning plate 16 and the push plate 15 are easy to shake when the shearing ring 6 rotates is solved; when extension board 18 and fixed plate 19 contact, locating plate 16 displacement drive push pedal 15 deflected downwards, and locating plate 16 drives elastic expansion member 17 and deflects to the opposite side, can continue to keep stable tilt state after elastic expansion member 17 deflects, and then makes push pedal 15 maintain the state of deflecting downwards, has improved push pedal 15 and probably has upwards turned round and has taken place the problem of colliding with collection box 9.

Example two

As shown in fig. 8 to 11, a first comparative example, in which another embodiment of the present invention is: the valve body 4 is installed on the outer sleeve 1 through a bolt piece 20, a centrifugal plate 21 and a driven plate 22 are movably installed in the extension plate 18 in a sliding mode, return springs are installed on the centrifugal plate 21 and the driven plate 22, the centrifugal plate 21 and the driven plate 22 are in transmission connection through a gear piece 23, and the bottom of the driven plate 22 is fixedly installed on the outer side of the extension plate 18A pressure plate 24 is arranged, the position of the pressure plate 24 is aligned with the bolt piece 20, and a balancing weight 25 is arranged in the centrifugal plate 21; in the initial state, the centrifugal plate 21 and the driven plate 22 are kept stable under the action of the return spring, the pressing plate 24 is attached to the extension plate 18, the bolt piece 20 is convenient to mount and dismount, and when the coupler rotates in operation, according to a centrifugal force formula:

in the formula, F: centrifugal force, r: radius of centrifugal motion, m: object mass, v: speed, therefore, under the condition that rotational speed and radius are the same, the mass of object is bigger, its centrifugal force is bigger, through set up balancing weight 25 on centrifugal plate 21, make centrifugal plate 21's centrifugal force be greater than the centrifugal force of driven plate 22 and clamp plate 24, therefore, centrifugal plate 21 can outwards move under the effect of centrifugal force, and drive driven plate 22 and clamp plate 24 inwards to move through gear piece 23, make clamp plate 24 support on bolt piece 20, make it difficult not hard up to drop, when the shaft coupling rotation of operation, bolt piece 20 is not hard up, lead to the problem that valve body 4 drops and hydraulic oil leaks, the operational reliability of shaft coupling has been improved.

The cutting head 7 is U-shaped, the two ends of the cutting head 7 are both provided with a centrifugal plate 21 and a driven plate 22, the two driven plates 22 are connected through a connecting rod 26, a pressing plate 24 is arranged at one end of the cutting head 7 far away from the collecting box 9, an inclined plate 28 is arranged on the pressing plate 24 close to one end of the collecting box 9, and the position of the inclined plate 28 is matched with the fixing plate 19; when the coupler works and rotates, the two pressure plates 24 extend downwards and abut against the bolt pieces 20; when the safe torque of the transmission part exceeds the preset value, when the shearing ring 6 rotates relative to the jacket 1, the inclined plate 28 is firstly contacted with the fixing plate 19, the inclined plate 28 is extruded by the fixing plate 19 to move upwards, the inclined plate 28 drives the pressing plate 24 to move upwards, then, the pressing plate 24 matched with the pushing plate 15 is contacted with the fixing plate 19, the pressing plate 24 is extruded by the fixing plate 19 to drive the positioning plate 16 to displace, so that the pushing plate 15 deflects downwards, through the U-shaped cutting head 7, the two pressing plates 24 and the inclined plate 28, when the cutting head 7 is sheared, the pressing plate 24 can automatically move upwards, the situation that the pressing plate 24 blocks the bolt piece 20 is avoided when the pressing plate 24 fixes the bolt piece 20, and the smooth operation of shearing work is ensured.

The connecting rod 26 is movably arranged in the cutting head 7, and a telescopic section 27 is arranged in the connecting rod 26; in operation, the two pressing plates 24 move up and down synchronously through the connecting rod 26, and the sliding of the pressing plate 24 matched with the pushing plate 15 is ensured.

The working principle is as follows:

the inner sleeve 2 is arranged on the transmission part, the outer sleeve 1 is connected with the driven part, the hydraulic cavity 3 is connected with the pressure pump, after the hydraulic cavity 3 is filled with hydraulic oil, the hydraulic cavity 3 is blocked through the valve body 4, the pressure in the hydraulic cavity 3 is adjusted through the pressure pump, the pressure of the hydraulic cavity 3 presses the inner sleeve 2 to generate elastic deformation and tightly hold the transmission part, then the transmission part is started, the driven equipment is driven through the inner sleeve 2 and the outer sleeve 1, and the function that the driven part and the transmission part are linked by the coupler is achieved; after the safe torque of the transmission part exceeds the preset value, a differential speed is formed between the shearing ring 6 and the outer sleeve 1, the shearing ring and the outer sleeve rotate relatively, the shearing cap 5 on the valve body 4 is cut off by the cutting head 7 on the shearing ring 6, hydraulic oil in the hydraulic cavity 3 is quickly discharged through the disconnected valve body 4, the pressure of the inner sleeve 2 is reduced, the shape of the inner sleeve 2 is recovered, the coupling is separated instantly, the transmission part and the driven part are protected, a piston cavity and accessory accessories of a conventional coupling are omitted, and the self weight of the coupling is reduced.

After the safe torque of the transmission part exceeds the preset value, the shearing ring 6 rotates relative to the outer sleeve 1, the shearing cap 5 on the valve body 4 is cut off, the shearing cap 5 is blocked through the enclosing plate 8, the shearing cap 5 falls into the collecting box 9, the function of collecting the shearing cap 5 is achieved, the problem that the sheared shearing cap 5 falls randomly and can cause collision damage or blockage to other parts is solved.

The friction powder 11 can adopt particles such as coffee powder, the friction powder 11 is the mobile form of dispersion under the initial condition, cushion 10 and friction powder 11 take place deformation easily, can be better the parcel live shear cap 5, then dial board 14 and piston rod 13 contact on the shearing ring 6, dial board 14 and promote piston rod 13 and remove, make air exhaust tube 12 bleed air to cushion 10, form the negative pressure, make cushion 10's shape fixed, and then tightly hoop shear cap 5, avoid it to rock at will, the shearing cap 5 that has improved and has cut off probably drops, the collision everywhere, produce the noise and collide with the problem of damaging.

The locating plate 16 keeps the position stable under the pulling of elastic expansion piece 17, stimulate push pedal 15 simultaneously, make its keep the position stable, as shearing ring 6 and overcoat 1 relative rotation, cut off the back with shearing cap 5, push pedal 15 can intercept shearing cap 5, and will shear in cap 5 promotes the collection box 9, further guaranteed that shearing cap 5 can be smooth get into in the collection box 9, and simultaneously, elastic expansion piece 17 has the cushioning effect to push pedal 15, push pedal 15 has been improved because of can not rotate, the problem that push pedal 15 and collection box 9 clash into and take place the rupture damage can appear.

Shear ring 6 and overcoat 1 relative rotation back, it cuts off cap 5 to be cutting head 7 earlier, push pedal 15 will cut cap 5 and push into in collecting box 9, before push pedal 15 contacts with collecting box 9, extension board 18 contacts with fixed plate 19, extension board 18 is extrudeed by fixed plate 19, it takes place the displacement to drive locating plate 16, locating plate 16 drives push pedal 15 and deflects downwards, push pedal 15 deflects the back and staggers from top to bottom with collecting box 9, push pedal 15 can not contact with collecting box 9, the easy problem of damaging that produces after push pedal 15 and the contact of collecting box 9 has been improved, push pedal 15's life has been prolonged.

The telescopic rod keeps a stable inclined state under the pushing of the supporting pressure spring, so that the positioning plate 16 and the push plate 15 keep stable, and the problem that the positioning plate 16 and the push plate 15 are easy to shake when the shearing ring 6 rotates is solved; when extension board 18 and fixed plate 19 contact, locating plate 16 displacement drive push pedal 15 deflected downwards, and locating plate 16 drives elastic expansion member 17 and deflects to the opposite side, can continue to keep stable tilt state after elastic expansion member 17 deflects, and then makes push pedal 15 maintain the state of deflecting downwards, has improved push pedal 15 and probably has upwards turned round and has taken place the problem of colliding with collection box 9.

When the coupler works and rotates, according to a centrifugal force formula:

in the formula, F: centrifugal force, r: half of centrifugal motionDiameter, m: object mass, v: speed, therefore, under the condition that rotational speed and radius are the same, the mass of object is bigger, its centrifugal force is bigger, through set up balancing weight 25 on centrifugal plate 21, make centrifugal plate 21's centrifugal force be greater than the centrifugal force of driven plate 22 and clamp plate 24, therefore, centrifugal plate 21 can outwards move under the effect of centrifugal force, and drive driven plate 22 and clamp plate 24 inwards to move through gear piece 23, make clamp plate 24 support on bolt piece 20, make it difficult not hard up to drop, when the shaft coupling rotation of operation, bolt piece 20 is not hard up, lead to the problem that valve body 4 drops and hydraulic oil leaks, the operational reliability of shaft coupling has been improved.

When the coupler works and rotates, the two pressure plates 24 extend downwards and abut against the bolt pieces 20; when the safe torque of the transmission part exceeds the preset value, when the shearing ring 6 rotates relative to the jacket 1, the inclined plate 28 is firstly contacted with the fixing plate 19, the inclined plate 28 is extruded by the fixing plate 19 to move upwards, the inclined plate 28 drives the pressing plate 24 to move upwards, then, the pressing plate 24 matched with the pushing plate 15 is contacted with the fixing plate 19, the pressing plate 24 is extruded by the fixing plate 19 to drive the positioning plate 16 to displace, so that the pushing plate 15 deflects downwards, through the U-shaped cutting head 7, the two pressing plates 24 and the inclined plate 28, when the cutting head 7 is sheared, the pressing plate 24 can automatically move upwards, the situation that the pressing plate 24 blocks the bolt piece 20 is avoided when the pressing plate 24 fixes the bolt piece 20, and the smooth operation of shearing work is ensured.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an ultra-light type multifunctional hydraulic coupling which characterized in that: including overcoat (1) and endotheca (2), be provided with hydraulic pressure chamber (3) on the inner peripheral surface of overcoat (1), valve body (4) are installed to the port department in hydraulic pressure chamber (3), are provided with on valve body (4) and cut cap (5), and the outside of endotheca (2) is fixed to be cup jointed shear ring (6), and the outside fixed mounting of shear ring (6) has cutting head (7) that correspond with shear cap (5), installs collection device on overcoat (1).

2. The ultra-light multifunctional hydraulic coupling of claim 1, wherein: the collecting device comprises a coaming (8) fixedly installed on the outer side of the outer sleeve (1), the coaming (8) is enclosed on the outer side of the cutting head (7), and a collecting box (9) is fixedly installed on the coaming (8).

3. The ultra-light multifunctional hydraulic coupling of claim 2, wherein: the top end of the enclosing plate (8) is provided with a discharge hole corresponding to the valve body (4), and the size of the discharge hole is smaller than that of the shearing cap (5).

4. The ultra-light multifunctional hydraulic coupling of claim 2, wherein: the inner wall of the collecting box (9) is provided with an elastic pad (10), friction powder particles (11) are filled between the collecting box (9) and the elastic pad (10), the outer side of the collecting box (9) is provided with an air pumping tube (12) for pumping the elastic pad (10), a piston rod (13) is arranged in the air pumping tube (12), and the outer side of the shearing ring (6) is provided with a shifting plate (14) corresponding to the piston rod (13).

5. The ultra-light multifunctional hydraulic coupling of claim 1, wherein: the outer side of the cutting head (7) is rotatably provided with a push plate (15), the inside of the cutting head (7) is slidably provided with a positioning plate (16), the positioning plate (16) is movably connected with the push plate (15), and an elastic telescopic piece (17) is arranged on the positioning plate (16).

6. The ultra-light multifunctional hydraulic coupling of claim 5, wherein: the bottom of the positioning plate (16) is fixedly provided with an extension plate (18) extending out of the cutting head (7), and the outer side of the outer sleeve (1) is fixedly provided with a fixing plate (19) corresponding to the extension plate (18).

7. The ultra-light multifunctional hydraulic coupling of claim 5, wherein: the elastic telescopic piece (17) comprises a telescopic rod, the telescopic rod and the positioning plate (16) are obliquely arranged, and a supporting pressure spring is arranged on the telescopic rod.

8. The ultra-light multifunctional hydraulic coupling of claim 6, wherein: the valve body (4) is installed on overcoat (1) through bolt spare (20), the inside movable sliding mounting of extension board (18) has centrifugal plate (21) and driven plate (22), all install reset spring on centrifugal plate (21) and driven plate (22), connect through gear spare (23) transmission between centrifugal plate (21) and the driven plate (22), the outside fixed mounting that the bottom of driven plate (22) just is located extension board (18) has clamp plate (24), the position and the bolt spare (20) of clamp plate (24) align, install balancing weight (25) in centrifugal plate (21).

9. The ultra-light multifunctional hydraulic coupling of claim 8, wherein: the cutting head (7) is U-shaped, and centrifugal plate (21) and driven plate (22) are all installed at the both ends of cutting head (7), connect through connecting rod (26) between two driven plates (22), and install in cutting head (7) one end of keeping away from and collect box (9) clamp plate (24), are close to and install swash plate (28) on clamp plate (24) of collecting box (9) one end, and the position and fixed plate (19) phase-match of swash plate (28).

10. The ultra-light multifunctional hydraulic coupling of claim 9, wherein: the connecting rod (26) is movably arranged in the cutting head (7), and a telescopic section (27) is arranged in the connecting rod (26).