CN2192762Y - Hydraulic safety coupling - Google Patents
Hydraulic safety coupling Download PDFInfo
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- CN2192762Y CN2192762Y CN 94213276 CN94213276U CN2192762Y CN 2192762 Y CN2192762 Y CN 2192762Y CN 94213276 CN94213276 CN 94213276 CN 94213276 U CN94213276 U CN 94213276U CN 2192762 Y CN2192762 Y CN 2192762Y
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Abstract
The utility model relates to a hydraulic safety shaft coupling which transfers torsion by the friction force formed by stretching and shrinking a hydraulic member to a driving member. The utility model comprises a coupling bush, a center sleeve of a flange (shaft), a shearing pipe and a shearing ring, wherein, the coupling bush which is the hydraulic member is composed of an inner sleeve and an outer sleeve; the coupling bush is sheathed with the center sleeve of a flange (shaft); the shearing pipe is arranged on the coupling bush and is placed in a U-shaped groove of the shearing ring; a cylindrical oil chamber arranged between the inner sleeve and the outer sleeve is filled with high-pressure oil. The utility model has the characteristics of high precision and adjustability of torque transference, good function of overload protection and reliable use.
Description
The utility model relates to a kind of be applicable in machinery, particularly steel rolling, mine, lifting transportation and other heavy duty equipment transmission of moment of torsion and the hydraulic safety coupling of overload protection between driving component.
At present, our common safety coupling has shear pin formula safety coupling, steel ball and spring formula safety coupling, spring FRICTION SAFETY COUPLING etc., the safety coupling of these several forms all has tired element, and promptly their limit is turned round element (as spring in the shear pin in the shear pin formula safety coupling, steel ball and spring formula safety coupling and the spring FRICTION SAFETY COUPLING etc.).Fatiguability in use, thus cause the precision of coupling transmitting torque not high; And take place to rupture, thereby cause coupling frequent and lose the function of its transmitting torque and overload protection because of metal fatigue through regular meeting with there is no need.
The purpose of this utility model be want to provide a kind of transmitting torque precision height, transmitting torque is adjustable, use is reliable but also have the safety coupling of transmitting torque overload protection function.
Realize that the purpose of this utility model can have three kinds of schemes.
One, the purpose of this utility model can realize like this.A kind of flexible hydraulic safety coupling to the frictional force transmitting torque that driving component produced by hydraulic parts comprises connecting flange and hold down gag.Hold down gag is a coupling sleeve, it is made of inner sleeve and outer sleeve, leave cylindrical oil pocket between the inner and outer sleeves, the two ends of inner and outer sleeves are formed by connecting with the mode of welding and are one, be distributed with the threaded stepped hole that is in same disk more than two on the coupling sleeve outer wall equably, also be provided with an oil hole on the coupling sleeve outer wall, threaded stepped hole communicates with cylindrical oil pocket, one of them communicates with oil hole.Connecting flange is a flange middle cover, its end face of flange or castellated or straight end-face key is tooth-like or end face is tooth-like, the outer wall of flange middle cover and coupling sleeve socket, inwall and transmission shaft socket.The identical shearing pipe of quantity is set on the position that is threaded stepped hole on the coupling sleeve, and shearing pipe is a threaded stepped hollow shaft, and its afterbody is a blind hole, is provided with seal ring and nylon ring washer on its body, and its head is the cone of an opening.Shear pipe and match their threaded engagement with threaded stepped hole on the coupling sleeve.Like this, when high pressure oil through oil hole after the oil pocket oiling, with shear pipe with each threaded stepped hole stifled on, then coupling sleeve just becomes a hydraulic parts.So cover is compressed in the coupling sleeve, make to form Desing of Interference Joint between flange middle cover and the transmission shaft, transmit the moment of torsion that is directly proportional with the oil pressure of notes high pressure oil.An end of shearing pipe is set on coupling sleeve shearing ring is set, shearing ring is made of two semi-rings, ring be provided with shear pipe quantity identical, can shear the U-groove bevel that the pipe afterbody is placed in one, this shearing ring tightly is locked on the transmission shaft.When the moment of torsion that transmits between flange middle cover and the transmission shaft during just over predetermined torque; the shearing ring and the coupling sleeve that tightly are locked on the transmission shaft produce relative rotation; cut off the shearing pipe that is on the coupling sleeve and places the shearing ring U-groove bevel immediately; so the high pressure oil in the coupling sleeve oil pocket releases from the incision position of shearing pipe; oil pressure will reduce to zero in a short period of time; cover restores to the original state in the coupling sleeve; Desing of Interference Joint between flange middle cover and the transmission shaft removes, is that both break away from mutually that coupling plays the effect of overload protection.
We can be provided with outer cover at the U-groove bevel place of shearing ring, in order to the oil that stops that the shearing pipe outwards releases when being cut off.
We can also be decided to be even number with the quantity of threaded stepped hole on the coupling sleeve, and correspondingly, the quantity of U-groove bevel also is even number on the quantity of shearing pipe and the shearing ring.
Aforesaid hydraulic safety coupling, the face of flange middle cover inwall and transmission shaft socket is a slip surface, this slip surface is provided with helical oil groove; Be provided with two oil holes of angle [alpha]=45 °～135 ° each other on the flange plate wall of flange middle cover in the disk, oil hole communicates with slip surface.Left end in the flange middle cover is provided with pressing plate, and the end face of pressing plate is provided with seal ring, is provided with outside framework oil seal at the right-hand member of flange middle cover, and sealing circle and outside framework oil seal are sealed at both ends with slip surface.When the moment of torsion that transmits between flange middle cover and the transmission shaft just over predetermined torque, shear that pipe is sheared that ring is cut off, when Desing of Interference Joint between flange middle cover and the transmission shaft is removed; notes lubricant oil in the helical oil groove on slip surface can be diffused into whole slip surface soon; dally as a sliding bearing between flange middle cover and the transmission shaft, coupling overload protection effect will be better.
Aforesaid hydraulic safety coupling, two ends at the slip surface of flange middle cover and transmission shaft socket respectively are provided with a bearing, the bearing of slip surface right-hand member is in the outside framework oil seal the inside, and its exterior edge face also is provided with gland, and the inner end of gland is provided with seal ring.Do like this and make coupling better in the overload protection effect of the occasion that runs up.
Two, the purpose of this utility model can also realize like this.A kind of flexible hydraulic safety coupling to the frictional force transmitting torque that driving component produced by hydraulic parts comprises connecting flange and hold down gag.Hold down gag is a coupling sleeve, and it is made of inner sleeve and outer sleeve, leaves cylindrical oil pocket between the inside and outside cover, and the two ends of inner and outer sleeves are formed by connecting with the mode of welding and are one.Be distributed with the threaded stepped hole that is in same disk more than two on the coupling sleeve outer wall equably, also be provided with an oil hole on the coupling sleeve outer wall, threaded stepped hole communicates with cylindrical oil pocket, one of them communicates with oil hole.One end of coupling sleeve is a flange plate, its end face of flange or castellated or straight end-face key is tooth-like or end face is tooth-like.Connecting flange is a flange jack shaft, the end face of flange of this flange jack shaft or castellated or straight end-face key is tooth-like or end face is tooth-like, its outer wall and coupling sleeve socket.Be threaded on the coupling sleeve on the position of stepped hole the identical shearing pipe of quantity is set, shearing pipe is a threaded stepped hollow shaft, its afterbody is a blind hole, seal ring and nylon ring washer are set on its pipe shaft, its head is the cone of an opening, shear pipe and match their threaded engagement with threaded stepped hole on the coupling sleeve.Like this, when high pressure oil through oil hole after the oil pocket oiling, with shearing pipe each threaded stepped hole is blocked up, then coupling sleeve just becomes a hydraulic parts, so cover is compressed in the coupling sleeve, make to form Desing of Interference Joint between flange jack shaft and the coupling sleeve, transmit the moment of torsion that is directly proportional with notes high pressure oil oil pressure.An end of shearing pipe is set on coupling sleeve shearing ring is set, shearing ring is made of two semi-rings, ring be provided with shear pipe quantity identical, can shear the U-groove bevel that pipe is placed in one, this shearing ring is fixedly mounted on the flange plate of flange jack shaft.When the moment of torsion that transmits between flange jack shaft and the coupling sleeve during just over predetermined torque; be installed between shearing ring on the flange jack shaft and the coupling sleeve and produce relative rotation; cut off the shearing pipe that is on the coupling sleeve and places the shearing ring U-groove bevel immediately; so the high pressure oil in the coupling sleeve oil pocket releases from the incision position of shearing pipe; oil pressure will reduce to zero in a short period of time; cover restores to the original state in the coupling sleeve; Desing of Interference Joint between flange jack shaft and the coupling sleeve removes, is that both break away from mutually that coupling plays the effect of overload protection.
We can be provided with outer cover at the U-groove bevel place of shearing ring, in order to the oil that stops that the shearing pipe outwards releases when being cut off.
We can be decided to be even number with the quantity of threaded stepped hole on the coupling sleeve, and correspondingly, the quantity of U-groove bevel also is even number on the quantity of shearing pipe and the shearing ring.
Aforesaid hydraulic safety coupling, the face of flange jack shaft outer wall and coupling sleeve socket is a slip surface, this slip surface is provided with helical oil groove, be provided with two oil holes of angle [alpha]=° 45～135 ° each other on the flange plate wall of flange jack shaft in the disk, oil hole communicates with slip surface.Right-hand member at joint sleeve is provided with gland, and the inner end of gland is provided with outside framework oil seal, is provided with seal ring at the inner end of shearing ring, and these two seal rings and outside framework oil seal are sealed at both ends with slip surface.When the moment of torsion that transmits between flange jack shaft and the coupling sleeve just over predetermined torque, shear that pipe is sheared that ring is cut off, when Desing of Interference Joint between flange jack shaft and the coupling sleeve is removed; notes lubricant oil in the helical oil groove on slip surface can be diffused into whole slip surface soon; dally as a sliding bearing between flange jack shaft and the coupling sleeve, the overload protection effect of coupling will be better.
Aforesaid hydraulic safety coupling respectively is provided with a bearing at the two ends of the slip surface of flange jack shaft outer wall and coupling sleeve socket.Do like this, the overload protection effect that makes coupling close in high quick-action transition is better.
Three, the purpose of this utility model can also realize like this.A kind of flexible hydraulic safety coupling to the frictional force transmission button square that driving component produced by hydraulic parts comprises connecting flange and hold down gag.Hold down gag is a coupling sleeve, it is made of inner sleeve and outer sleeve, leave cylindrical oil pocket between the inner and outer sleeves, the two ends of inner and outer sleeves are formed by connecting with the mode of welding and are one, be in the threaded stepped hole of same disk more than two distributing equably on the coupling sleeve outer wall, an oil hole also is set on the coupling sleeve outer wall, and threaded stepped hole communicates with cylindrical oil pocket, one of them communicates with oil hole.Connecting flange is a flange middle cover; its end face or castellated or straight end-face key is tooth-like or end face is tooth-like; the outer wall of flange middle cover and coupling sleeve socket; flange middle cover inwall and axle sleeve socket; and sleeve lining and transmission shaft socket, the setting of axle sleeve here is in order to the protection transmission shaft.Be threaded on the coupling sleeve on the position of stepped hole the identical shearing pipe of quantity is set, shearing pipe is a threaded stepped hollow shaft, and its afterbody is a blind hole, and its pipe shaft is provided with seal ring and nylon back-up ring, and its head is the cone of an opening.Shear pipe and match their threaded engagement with threaded stepped hole on the coupling sleeve.Like this, when high pressure oil through oil hole after the oil pocket oiling, with shearing pipe each threaded stepped hole is blocked up, then coupling sleeve just becomes a hydraulic parts, so cover is compressed in the coupling sleeve, make to form Desing of Interference Joint between flange middle cover and the axle sleeve, transmit the moment of torsion that is directly proportional with notes high pressure oil oil pressure.An end of shearing pipe is set on coupling sleeve shearing ring is set, shearing ring is made of two semi-rings, ring be provided with shear pipe quantity identical, can shear the U-groove bevel that pipe is placed in one, this shearing ring is fixed on the axle sleeve.Left end at axle sleeve is provided with end cap, and this end cap is fixed on the transmission shaft.When the moment of torsion that transmits between flange middle cover and the axle sleeve during just over predetermined torque; be fixed between shearing ring on the axle sleeve and the coupling sleeve and produce relative rotation; cut off the shearing pipe that is on the coupling sleeve and places the shearing ring U-groove bevel immediately; so the high pressure oil in the coupling sleeve oil pocket releases from the incision position of shearing pipe; oil pressure will reduce to zero in a short period of time; cover restores to the original state in the coupling sleeve; Desing of Interference Joint between flange middle cover and the axle sleeve removes, is that both break away from mutually that coupling plays the effect of overload protection.
We can be provided with outer cover at the U-groove bevel place of shearing ring, shear the oil that outwards releases when pipe is cut off in order to the resistance shelves.
We can also be decided to be even number with the quantity of the threaded stepped hole of coupling sleeve, and correspondingly, the quantity of U-groove bevel also is even number on the quantity of shearing pipe and the shearing ring.
Aforesaid hydraulic safety coupling, the face of flange middle cover inwall and axle sleeve socket is a slip surface, this slip surface is provided with helical oil groove, be provided with two oil holes of angle [alpha]=45 °～135 ° each other on the flange plate wall of flange middle cover in the disk, this oil hole communicates with slip surface.Left end in the flange middle cover is provided with pressing plate, and the inner end of pressing plate is provided with seal ring, at the right-hand member of flange middle cover outside framework oil seal is set, and sealing circle and outside framework oil seal seal slip surface.When the moment of torsion that transmits between flange middle cover and the axle sleeve just over predetermined torque, shear that pipe is sheared that ring is cut off, when Desing of Interference Joint between flange middle cover and the axle sleeve is removed; notes lubricant oil in the helical oil groove on slip surface can be diffused into whole slip surface soon; dally as a sliding bearing between flange middle cover and the axle sleeve, the overload protection effect of coupling will be better.
Aforesaid hydraulic safety coupling is provided with a bearing between the right-hand member of the slip surface of flange middle cover and axle sleeve socket and outside framework oil seal, the bearing exterior edge face is provided with gland, also is provided with seal ring on the inner end of gland; In the left end of axle sleeve, the inside of pressing plate end cap is set, this end cap is fixed on the transmission shaft, and a bearing is set between flange middle cover and end cap.Do like this, make coupling better in the overload protection effect of the occasion that runs up.
The utility model is owing to adopt coupling sleeve and (axle) socket of flange middle cover and the shearing pipe is set on coupling sleeve; shear the structure that pipe places the shearing ring U-groove bevel; it is the moment of torsion that the high pressure oil of annotating is pressed into direct ratio in the Desing of Interference Joint transmission of generation between the flexible and flange middle cover (axle) of overlapping in the coupling sleeve and the coupling sleeve by means of hydraulic parts; when the moment of torsion that is transmitted during just over predetermined torque; shearing ring is cut off and is sheared pipe; the high pressure oil of being annotated in the coupling sleeve releases from the fracture of shearing pipe; oil pressure promptly reduces to zero; Desing of Interference Joint between coupling sleeve and the flange middle cover (axle) is removed; be that both break away from mutually, coupling plays the effect of overload protection.And flange middle cover (axle) goes up the setting of slip surface and at the slip surface two ends bearing is set, and makes the overload protection of coupling or even the overload protection better effects if of the occasion that runs up.As seen its more existing safety coupling such as shear pin formula safety coupling, steel ball and spring formula safety coupling, spring FRICTION SAFETY COUPLING have that the transmitting torque precision is high and adjustable, overload protection function is good, the service-strong characteristics.
Fig. 1 is the hydraulic safety coupling structural representation I of first kind of scheme the utility model proposes.
Fig. 2 is the hydraulic safety coupling structural representation II of first kind of scheme the utility model proposes.
Fig. 3 is the hydraulic safety coupling structural representation of second kind of scheme the utility model proposes.
Fig. 4 is the hydraulic safety coupling structural representation of the third scheme that the utility model proposes.
Fig. 5 is that the hydraulic safety coupling that the utility model proposes is sheared the tubular construction schematic representation.
Fig. 6 is the hydraulic safe shaft coupling shearing ring structural representation that the utility model proposes.
Introduce embodiment of the present utility model below in conjunction with accompanying drawing.
One, hydraulic safety coupling as shown in Figure 1.Coupling sleeve (3) is made of inner sleeve (3a) and outer sleeve (3b), in, outer sleeve (3a, leave cylindrical oil pocket (3c) 3b), in, outer sleeve (3a, two ends 3b) become one through being welded to connect, on coupling sleeve (3) outer wall, be distributed with the threaded stepped hole (3d) that is in same disk more than two equably, on coupling sleeve (3) outer wall, also be provided with an oil hole (3e) (not drawing among the figure), hole (3d) communicates with oil pocket (3c), one of them hole (3d) communicates with oil hole (3e), i.e. hole (3d), oil pocket (3c) constitutes oil circuit with oil hole (3e) three.Flange middle cover (2) outer wall and coupling sleeve (3) socket, its inwall and transmission shaft socket, its end face of flange (2a) is castellated, this end face of flange (2a) also can be straight end-face key tooth-like or for end face tooth-like.The face of flange middle cover (2) inwall and transmission shaft socket is slip surface (2b), this slip surface (2b) is provided with helical oil groove (2c) (not drawing among the figure), be provided with two oil holes (2e) (not drawing among the figure) of angle [alpha]=90 ° each other on flange plate (2d) wall of flange middle cover in the same disk, oil hole (2e) communicates with slip surface (2d).Left end in flange middle cover (2) is provided with pressing plate (1), and the inner end of this pressing plate (1) is provided with seal ring (1a), and seal ring (1a) can be the O RunddichtringO, is provided with outside framework oil seal (7) at the right-hand member of flange middle cover (2).The position that is threaded stepped hole (3d) on the connection method cover (3) is provided with the shearing pipe (4) identical with hole (3d) quantity, as shown in Figure 5, this shearing pipe (4) is a threaded stepped hollow shaft, and its afterbody is that blind hole, pipe shaft are provided with seal ring (4a) and nylon back-up ring (4b), head are the cone of an opening.Shearing pipe (4) is gone up threaded stepped hole (3d) with coupling sleeve (3) and is matched their threaded engagement.An end of shearing pipe (4) is set on coupling sleeve (3) shearing ring (6) is set, as shown in Figure 6, this shearing ring (6) is made of two semi-rings, ring be provided with shear pipe (4) quantity identical, can shear manage the U-groove bevel that (4) afterbody is placed in one, it tightly is locked on the transmission shaft.Locate to be provided with outer cover (5) at shearing ring U type groove (6a).During use, this hydraulic safety coupling is installed on the machine driven system, the oil hole (2e) on flange middle cover flange plate wall injects lubricant oil to slip surface (2b) earlier, and the lubricant oil of annotating is stored in the slip surface helical oil groove (2c); Oil hole (3e) on coupling sleeve (3) outer wall injects high pressure oil to oil pocket (3c) again, and the oil pressure of the high pressure oil of annotating is to decide according to the predetermined torque value of hydraulic safety coupling, and both are directly proportional.After injecting high pressure oil, between coupling sleeve (3) and the flange middle cover (2), form Desing of Interference Joint, transmission axial flange middle cover transmitting torque between flange middle cover (2) and the transmission shaft to oil pocket (3c).In the using process, when moment of torsion that hydraulic safety coupling transmitted during just over predetermined torque, produce relative rotation between flange middle cover (2) and the transmission shaft, the shearing ring (6) that promptly tightly is locked on the transmission shaft produces relative rotation with coupling sleeve (3), shearing ring (6) is cut off immediately and is in the shearing pipe (4) that shearing ring U-groove bevel (6a) was gone up and placed to coupling sleeve (3), so the high pressure oil in the coupling sleeve oil pocket (3c) releases from shearing pipe (4) afterbody fracture, oil pressure will reduce to zero in a short period of time, between coupling sleeve (3) and the flange middle cover (2), Desing of Interference Joint between flange middle cover (2) and the transmission shaft is removed, lubricant oil on the flange middle cover slip surface in the helical oil groove (2c) is diffused into whole slip surface (2b) soon, dallies as a sliding bearing between flange middle cover (2) and the transmission shaft.
For this hydraulic safety coupling can play better overload protective function in the occasion that runs up; as shown in Figure 2; at hydraulic safety coupling flange middle cover slip surface shown in Figure 1 (2b) two ends a bearing (8,10) is set respectively; bearing (8,10) can be roller bearing, the frictional force when removing to reduce Desing of Interference Joint between flange middle cover (2) and the transmission shaft.The bearing (10) of slip surface (2b) right-hand member is in the inside of outside framework oil seal (7), also is provided with gland (9) in the exterior edge face of bearing (10), and the inner end of gland (9) is provided with seal ring (9a), and seal ring (9a) can be the O RunddichtringO.
Two, hydraulic safety coupling as shown in Figure 3.Coupling sleeve (14) is made of inner sleeve (14a) and outer sleeve (14b), in, outer sleeve (14a, leave cylindrical oil pocket (14c) 14b), in, outer sleeve (14a, two ends 14b) become one through being welded to connect, on coupling sleeve (14) outer wall, be distributed with the threaded stepped hole (14d) that is in same disk more than two equably, on coupling sleeve (14) outer wall, also be provided with an oil hole (14e) (not drawing among the figure), hole (14d) communicates with oil pocket (14c), one of them hole (14d) communicates with oil hole (14e), be hole (14d), oil pocket (14c) constitutes oil circuit with oil hole (14e) three, the right side of coupling sleeve (14) is flange plate (14f), end face of flange (14g) is castellated, this end face of flange (14g) also can be straight end-face key tooth-like or for end face tooth-like.The outer wall of flange jack shaft (11) and coupling sleeve (14) socket, its end face of flange (11a) is castellated, this end face of flange (11a) also can be straight end-face key tooth-like or for end face tooth-like.Flange jack shaft (11) is slip surface (11b) with the face of coupling sleeve (14) socket, this slip surface (11b) is provided with helical oil groove (11c) (not drawing among the figure), on flange plate (11d) wall of flange jack shaft, be provided with two oil holes (11e) (not drawing among the figure) of angle [alpha]=90 ° each other in the disk, oil hole (11e) communicates with slip surface (11b), also respectively be provided with a bearing (12,16) at the two ends of slip surface (11b), bearing (12,16) can be roller bearing.The position that is threaded stepped hole (14d) on the coupling sleeve is provided with the shearing pipe (4) identical with hole (14d) quantity, and as shown in Figure 5, its structure is described similar to the foregoing description one, repeats no more here.An end of shearing pipe (4) is set on coupling sleeve (14) shearing ring (6) is set, as shown in Figure 6, this shearing ring (6) is fixedly mounted on the flange jack shaft flange plate (11d), its inner end is provided with seal ring (6a), its structure is described similar to the foregoing description one, repeats no more here.Locate to be provided with outer cover (5) at shearing ring U-groove bevel (6a).Gland (15) is arranged on the right-hand member of coupling sleeve (14), and its inner end is provided with seal ring (15a), and outside framework oil seal (13) is arranged between the left end and shearing ring (6) of coupling sleeve (14).Seal ring (6a), seal ring (15a) can be O-ring seals.During use, this hydraulic safety coupling is installed on the machine driven system, the oil hole (11e) on flange jack shaft flange plate wall injects lubricant oil earlier, and the lubricant oil of annotating is stored in the slip surface helical oil groove (11c); Oil hole on the coupling sleeve outer wall (14e) injects high pressure oil to oil pocket (14c) again, and the oil pressure of the high pressure oil of annotating is to decide according to the predetermined torque value of hydraulic safety coupling, and both are directly proportional.After injecting high pressure oil, form Desing of Interference Joint and transmitting torque between coupling sleeve (14) and the flange jack shaft (11) to oil pocket (14c).In the using process, when moment of torsion that hydraulic safety coupling transmitted during just over predetermined torque, produce relative rotation between flange jack shaft (11) and the coupling sleeve (14), the shearing ring (6) that promptly is fixed on the flange jack shaft (11) produces relative rotation with coupling sleeve (14), shearing ring (6) is cut off immediately and is in the shearing pipe that shearing ring U-groove bevel (6a) was gone up and placed to coupling sleeve (14), so the high pressure oil in the coupling sleeve oil pocket (14c) releases from shearing pipe (4) afterbody fracture, oil pressure will reduce to zero in a short period of time, Desing of Interference Joint between coupling sleeve (14) and the flange jack shaft (11) is removed, lubricant oil on the flange jack shaft slip surface in the helical oil groove (11c) is diffused on the whole slip surface (11b) soon, dallies as a sliding bearing between flange jack shaft (11) and the coupling sleeve (14).This hydraulic safety coupling be adapted at running up occasion transmitting torque and overload protection.
Three, hydraulic safety coupling as shown in Figure 4.Coupling sleeve (21) is made of inner sleeve (21a) and outer sleeve (21b), in, outer sleeve (21a, leave cylindrical oil pocket (21c) 21b), in, outer sleeve (21a, two ends 21b) become one through being welded to connect, on coupling sleeve (21) outer wall, be distributed with the threaded stepped hole (21d) that is in same disk more than two equably, on coupling sleeve (21) outer wall, also be provided with an oil hole (21e) (not drawing among the figure), hole (21d) communicates with oil pocket (21c), one of them hole (21d) communicates with oil hole (21e), i.e. hole (21d), sliding chamber (21c) constitutes oil circuit with oil hole (21e) three.Flange middle cover (20) outer wall and coupling sleeve (21) socket, flange middle cover (20) inwall and axle sleeve (25) socket, and axle sleeve (25) inwall and transmission shaft socket.The end face of flange of flange middle cover (20a) is that end face is tooth-like, and this end face of flange (20a) also can be castellated or is that straight end-face key is tooth-like.Flange middle cover (20) is slip surface (20b) with the face of axle sleeve (25) socket, this slip surface (20b) is provided with helical oil groove (20c) (not drawing among the figure), be provided with two oil holes (20e) (not drawing among the figure) of angle [alpha]=90 ° each other on flange plate (20d) wall of flange middle cover in the same disk, oil hole (20e) communicates with slip surface (20b).Left end in flange middle cover (20) is provided with pressing plate (17), and the inner end of this pressing plate (17) is provided with seal ring (17a); In the left end of axle sleeve (25), the inside of pressing plate (17) end cap (18) is set, this end cap (18) is fixed on the transmission shaft; Between flange middle cover (20) and end cap (18), be provided with a bearing (19).Right-hand member in flange middle cover (20) is provided with outside framework oil seal (24), between flange middle cover (20) and outside framework oil seal (24), bearing (23) is set, in the exterior edge face of bearing (23) gland (22) is set, the inner end of gland (22) is provided with seal ring (22a), and this gland (22) is fixed on the right-hand member of coupling sleeve.Bearing (19), bearing (23) can be roller bearing, and seal ring (17a), seal ring (22a) can be O-ring seals.The position that is threaded stepped hole (21d) on the coupling sleeve (21) is provided with the shearing pipe (4) identical with hole (21d) quantity, and as shown in Figure 5, its structure is described similar to the foregoing description one, repeats no more here.An end of shearing pipe (4) is set on coupling sleeve (14) shearing ring (6) is set, as shown in Figure 6, this shearing ring (6) is fixed on the axle sleeve (25), and its structure is described similar to the foregoing description one, repeats no more here.Locate to be provided with outer cover (5) at shearing ring U-groove bevel (6a).During use, this hydraulic safety coupling is installed on the machine driven system, the oil hole (20e) on flange middle cover flange plate wall injects lubricant oil earlier, and the lubricant oil of annotating is stored in the slip surface helical oil groove (20c); Oil hole on the coupling sleeve outer wall (21e) injects high pressure oil to oil pocket (21c) again, and the oil pressure of the high pressure oil of annotating is to decide according to the predetermined torque value of hydraulic safety coupling, and both are directly proportional.After injecting high pressure oil to oil pocket (21c), formation Desing of Interference Joint between coupling sleeve (21) and the flange middle cover (20), between flange middle cover (20) and the axle sleeve (25) and transmitting torque.In the using process; when moment of torsion that hydraulic safety coupling transmitted during just over predetermined torque; produce relative rotation between flange middle cover (20) and the axle sleeve (25); the shearing ring (6) that promptly is fixed on the axle sleeve (25) produces relative rotation with coupling sleeve (21); shearing ring (6) is cut off immediately and is in the shearing pipe that shearing ring U-groove bevel (6a) was gone up and placed to coupling sleeve (21); so coupling sleeve oil pocket (21c) mesohigh oil releases from shearing pipe (4) afterbody fracture; oil pressure will reduce to zero in a short period of time; between coupling sleeve (21) and the flange middle cover (20); Desing of Interference Joint between flange middle cover (20) and the axle sleeve (25) is removed; lubricant oil on the flange middle cover slip surface in the helical oil groove (20c) is diffused into whole slip surface (20b) soon; dally this hydraulic safety coupling be adapted at running up occasion transmitting torque and overload protection between flange middle cover (20) and the axle sleeve (25) as a sliding bearing.
Claims (15)
1, a kind of hydraulic safety coupling comprises connecting flange and hold down gag, it is characterized in that:
1.1 described hold down gag is a coupling sleeve (3), this joint sleeve (3) is made of inner sleeve (3a) and outer sleeve (3b), leave cylindrical oil pocket (3c) between inner sleeve (3a) and the outer sleeve (3b), inner sleeve (3a) is formed by connecting with the mode of welding with outer sleeve (3b) two ends and is one, on coupling sleeve (3) outer wall, be distributed with the threaded stepped hole (3d) that is in same disk more than two equably, also be provided with an oil hole (3e) on coupling sleeve (3) outer wall, hole (3d) communicates with oil pocket (3c), one of them hole (3d) communicates with oil hole (3e);
1.2 described connecting flange is a flange middle cover (2), the end face of flange of this flange middle cover (2a) or castellated or straight end-face key is tooth-like or end face is tooth-like, flange middle cover (2) outer wall and coupling sleeve (3) socket, flange middle cover (2) inwall and transmission shaft socket;
Be provided with the shearing pipe (4) identical 1.3 be threaded the position of stepped hole (3d) on the coupling sleeve with hole (3d) quantity, this shearing pipe (4) is a threaded stepped hollow shaft, the afterbody of shearing pipe (4) is a blind hole, shear pipe (4) and be provided with seal ring (4a) and nylon back-up ring (4b), the head of shearing pipe (4) is the cone of an opening;
1.4 being set, an end of shearing pipe (4) is provided with shearing ring (6) on coupling sleeve (3), this shearing ring (6) is made of two semi-rings, shearing ring (6) is provided with the U-groove bevel (6a) identical with shearing pipe (4) quantity, and the afterbody that U-groove bevel will be sheared pipe (4) is placed in one.
2, hydraulic safety coupling according to claim 1 is characterized in that: U-groove bevel on shearing ring (6a) locates to be provided with outer cover (5).
3, hydraulic safety coupling according to claim 1 is characterized in that: the quantity of threaded stepped hole (3d) is even number on the coupling sleeve, and correspondingly, the quantity of U-groove bevel (6a) also is even number on the quantity of shearing pipe (4) and the shearing ring.
4, according to claim 1 or 2 or 3 described hydraulic safety couplings, it is characterized in that: the face of flange middle cover (2) inwall and transmission shaft socket is slip surface (2b), and this slip surface (2b) is provided with helical oil groove (2c); The flange plate of flange middle cover (2d) wall is provided with two oil holes (2e) that are on the same disk angle [alpha]=45 each other °～135 °, and oil hole (2e) communicates with slip surface (2b); Left end in flange middle cover (2) is provided with pressing plate (1), and the inner end of pressing plate (1) is provided with seal ring (1a); Right-hand member in flange middle cover (2) also is provided with outside framework oil seal (7).
5, hydraulic safety coupling according to claim 4, it is characterized in that: the two ends at the slip surface (2b) of flange middle cover (2) inwall and transmission shaft socket respectively are provided with a bearing (8,10), the bearing (10) of slip surface (2b) right-hand member is in the inside of outside framework oil seal (7), the exterior edge face of bearing (10) also is provided with gland (9), and the inner end of gland (9) is provided with seal ring (9a).
6, a kind of hydraulic safety coupling comprises connecting flange and hold down gag, it is characterized in that:
6.1 described hold down gag is a joint sleeve (14), this joint sleeve (14) is made of inner sleeve (14a) and outer sleeve (14b), leave cylindrical oil pocket (14c) between inner sleeve (14a) and the outer sleeve (14b), inner sleeve (14a) is formed by connecting with the mode of welding with outer sleeve (14b) two ends and is one, on coupling sleeve (14) outer wall, be distributed with the threaded stepped hole (14d) that is in same disk more than two equably, on coupling sleeve (14) outer wall, also be provided with an oil hole (14e), hole (14d) communicates with oil pocket (14c), one of them hole (14d) communicates with oil hole (14e), one end of coupling sleeve (14) is flange plate (14f), the end face of flange of this flange plate (14g) or castellated or straight end-face key is tooth-like or end face is tooth-like;
6.2 described connecting flange is a flange jack shaft (11), the end face of flange (11a) of this flange jack shaft (11) or castellated or straight end-face key is tooth-like or end face is tooth-like, the outer wall of flange jack shaft (11) and joint sleeve (14) socket;
Be provided with the shearing pipe (4) identical 6.3 be threaded the position of stepped hole (14d) on the coupling sleeve with hole (14d) quantity, this shearing pipe (4) is a threaded stepped hollow shaft, the afterbody of shearing pipe (4) is a blind hole, shear pipe (4) and be provided with seal ring (4a) and nylon back-up ring (4b), the head of shearing pipe (4) is the cone of an opening;
6.4 being set, an end of shearing pipe (4) is provided with shearing ring (6) on coupling sleeve (14), this shearing ring (6) is made of two semi-rings, shearing ring (6) is provided with the U-groove bevel (6a) identical with shearing pipe (4) quantity, and the afterbody that U-groove bevel (6a) will be sheared pipe (4) is placed in one.
7, hydraulic safety coupling according to claim 6 is characterized in that: U-groove bevel on shearing ring (6a) is located the place's of being provided with cover (5).
8, hydraulic safety coupling according to claim 6 is characterized in that: the quantity of threaded stepped hole (14d) is even number on the coupling sleeve, and correspondingly, the quantity of U-groove bevel (6a) also is even number on the quantity of shearing pipe (4) and the shearing ring.
9, according to claim 6 or 7 or 8 described hydraulic safety couplings, it is characterized in that: the face of flange jack shaft (11) outer wall and coupling sleeve (14) socket is slip surface (11b), also is provided with helical oil groove (11c) on this slip surface (11b); The flange plate of flange jack shaft (11d) wall is provided with two oil holes (11e) that are on the same disk angle [alpha]=45 each other °～135 °, and oil hole (11e) communicates with slip surface (11b); Right-hand member at joint sleeve (14) is provided with gland (15), and the inner end of gland (15) is provided with seal ring (15a), is provided with outside framework oil seal (13) at the left end of joint sleeve (14), is provided with seal ring (6a) at shearing ring (6) inner end;
10, hydraulic safety coupling according to claim 9 is characterized in that: the two ends at the slip surface (11b) of flange jack shaft (11) outer wall and joint sleeve (14) socket are respectively arranged with bearing (12), bearing (16).
11, a kind of hydraulic safety coupling comprises connecting flange and hold down gag, it is characterized in that:
11.1 described hold down gag is a coupling sleeve (21), this coupling sleeve (21) is made of inner sleeve (21a) and outer sleeve (21b), leave cylindrical oil pocket (21c) between inner sleeve (21a) and the outer sleeve (21b), inner sleeve (21a) is formed by connecting with the mode of welding with outer sleeve (21b) two ends and is one, on coupling sleeve (21) outer wall, be distributed with the threaded stepped hole (21d) that is in same disk more than two equably, also be provided with an oil hole (21e) on coupling sleeve (21) outer wall, hole (21d) communicates with oil pocket (21c), one of them hole (21d) communicates with oil hole (21e);
11.2 described connecting flange is a flange middle cover (20), the end face of flange of this flange middle cover (20a) or castellated or straight end-face key is tooth-like or end face is tooth-like, flange middle cover (20) outer wall and coupling sleeve (21) socket, flange middle cover (20) inwall and axle sleeve (25) socket, and axle sleeve (25) inwall and transmission shaft socket;
Be provided with the shearing pipe (4) identical 11.3 be threaded the position of stepped hole (21d) on the coupling sleeve with hole (21d) quantity, this shearing pipe (4) is a threaded stepped hollow shaft, the afterbody of shearing pipe (4) is a blind hole, shear pipe (4) and be provided with seal ring (4a) and nylon back-up ring (4b), shearing pipe (4) head is the cone of an opening;
11.4 coupling sleeve (21) is provided with an end of shearing pipe (4) and is provided with shearing ring (6), this shearing ring (6) is made of two semi-rings, shearing ring (6) is provided with the U-groove bevel (6a) identical with shearing pipe (4) quantity, and the afterbody that U-groove bevel (6a) will be sheared pipe (4) is placed in one;
11.5 the left end at axle sleeve (25) is provided with end cap (18), this end cap (18) is fixed on the transmission shaft.
12, hydraulic safety coupling according to claim 11 is characterized in that: U-groove bevel on shearing ring (6a) locates to be provided with outer cover (5).
13, hydraulic safety coupling according to claim 11 is characterized in that: the quantity of threaded stepped hole (21d) is even number on the coupling sleeve, and correspondingly the quantity of U-groove bevel (6a) also is even number on the quantity of shearing pipe (4) and the shearing ring.
14, according to claim 11 or 12 or 13 described hydraulic safety couplings, it is characterized in that: the face of flange middle cover (20) inwall and axle sleeve (25) socket is slip surface (20b), also be provided with helical oil groove (20c) on this slip surface (20b), the flange plate of flange middle cover (20d) wall is provided with two oil holes (20e) that are on the same disk angle [alpha]=45 each other °～135 °, and oil hole (20e) communicates with slip surface (20b); Left end in flange middle cover (20) is provided with pressing plate (17), and the inner end of pressing plate (17) is provided with seal ring (17a), is provided with outside framework oil seal (24) at the right-hand member of flange middle cover (20);
15, hydraulic safety coupling according to claim 14, it is characterized in that: between slip surface (20b) right-hand member of flange middle cover inwall and axle sleeve socket and outside framework oil seal (24), be provided with bearing (23), between flange middle cover (20) and end cap (18), bearing (19) be set; Be provided with gland (22) in bearing (23) exterior edge face, the inner end of gland (22) is provided with seal ring (22a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213276 CN2192762Y (en) | 1994-06-06 | 1994-06-06 | Hydraulic safety coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213276 CN2192762Y (en) | 1994-06-06 | 1994-06-06 | Hydraulic safety coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2192762Y true CN2192762Y (en) | 1995-03-22 |
Family
ID=33829883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94213276 Expired - Fee Related CN2192762Y (en) | 1994-06-06 | 1994-06-06 | Hydraulic safety coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2192762Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315914A (en) * | 2014-10-31 | 2015-01-28 | 沈阳汇博热能设备有限公司 | Hairpin type heat exchanger tube plate-end sealing structure |
| CN104533959A (en) * | 2014-12-16 | 2015-04-22 | 苏州市诚品精密机械有限公司 | Cover structure |
| CN104595383A (en) * | 2014-12-31 | 2015-05-06 | 太重煤机有限公司 | Coal mining machine traction clutch device with overload protection function |
| CN105402266A (en) * | 2015-11-30 | 2016-03-16 | 泰尔重工股份有限公司 | Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure |
| CN106181252A (en) * | 2016-08-09 | 2016-12-07 | 德阳立达基础件有限公司 | The processing technique of hydraulic safety coupling coupling sleeve |
| US9605493B2 (en) | 2014-06-23 | 2017-03-28 | Arthur W. Lauder | Downhole coupling |
| CN107642554A (en) * | 2017-10-30 | 2018-01-30 | 泰尔重工股份有限公司 | It is a kind of can quick adjustment phase place shaft coupling |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN113790220A (en) * | 2021-09-07 | 2021-12-14 | 无锡鸿海龙船机有限公司 | Ultra-light multifunctional hydraulic coupler |
| US11428259B2 (en) | 2020-03-30 | 2022-08-30 | Plainsman Mfg. Inc. | Shear coupling and method of assembling same |
-
1994
- 1994-06-06 CN CN 94213276 patent/CN2192762Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9605493B2 (en) | 2014-06-23 | 2017-03-28 | Arthur W. Lauder | Downhole coupling |
| CN104315914A (en) * | 2014-10-31 | 2015-01-28 | 沈阳汇博热能设备有限公司 | Hairpin type heat exchanger tube plate-end sealing structure |
| CN104315914B (en) * | 2014-10-31 | 2016-08-24 | 沈阳汇博热能设备有限公司 | Back-bending type heat exchanger tube sheet end seals structure |
| CN104533959A (en) * | 2014-12-16 | 2015-04-22 | 苏州市诚品精密机械有限公司 | Cover structure |
| CN104595383A (en) * | 2014-12-31 | 2015-05-06 | 太重煤机有限公司 | Coal mining machine traction clutch device with overload protection function |
| CN105402266A (en) * | 2015-11-30 | 2016-03-16 | 泰尔重工股份有限公司 | Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure |
| CN106181252A (en) * | 2016-08-09 | 2016-12-07 | 德阳立达基础件有限公司 | The processing technique of hydraulic safety coupling coupling sleeve |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN107642554A (en) * | 2017-10-30 | 2018-01-30 | 泰尔重工股份有限公司 | It is a kind of can quick adjustment phase place shaft coupling |
| US11428259B2 (en) | 2020-03-30 | 2022-08-30 | Plainsman Mfg. Inc. | Shear coupling and method of assembling same |
| US11965537B2 (en) | 2020-03-30 | 2024-04-23 | Plainsman Mfg. Inc. | Shear coupling and method of assembling same |
| CN113790220A (en) * | 2021-09-07 | 2021-12-14 | 无锡鸿海龙船机有限公司 | Ultra-light multifunctional hydraulic coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |