CN115434384A - Hydraulic quick-change device control loop for excavator - Google Patents
Hydraulic quick-change device control loop for excavator Download PDFInfo
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- CN115434384A CN115434384A CN202210963928.4A CN202210963928A CN115434384A CN 115434384 A CN115434384 A CN 115434384A CN 202210963928 A CN202210963928 A CN 202210963928A CN 115434384 A CN115434384 A CN 115434384A
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- conical
- quick
- threaded
- sleeve
- outlet pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2275—Hoses and supports therefor and protection therefor
Abstract
The invention discloses a hydraulic quick-change device control loop for an excavator, and relates to the technical field of excavators; the oil outlet pipe comprises an oil outlet pipe, the oil outlet pipe is in threaded connection with a quick connector, the outer surface of a first conical plugging ring can be in sealing connection with the inner wall of a first conical shell under the action of a spring, the outer surface of a second conical plugging ring is in sealing connection with the inner wall of a second conical shell, the effect that the oil inlet pipe and the oil outlet pipe can be plugged in a normal state is achieved, dust is reduced, and when the oil inlet pipe and the oil outlet pipe are detached and separated, the oil inlet pipe and the oil outlet pipe are automatically plugged, so that oil in the oil inlet pipe can be prevented from overflowing; the nut is rotated to enable the threaded sleeve to be in threaded connection with the connecting piece, the outer surface of the second conical plugging ring is separated from contact with the conical inner wall of the second conical shell, and the outer surface of the first conical plugging ring is separated from contact with the inner wall of the first conical shell, so that the oil inlet pipe and the oil outlet pipe are rapidly communicated, and the mounting and the use are convenient.
Description
Technical Field
The invention relates to the technical field of excavators, in particular to a control loop of a hydraulic quick-change device for an excavator.
Background
Install a plurality of connection oil pipes on the excavator equipment, threaded connection between usually between these oil pipes, when dismantling and installing, can lead to remaining fluid in the oil pipe to spill over the outside of tubes usually, and trickle to the excavator equipment on, these oil stains can adsorb a large amount of dust for a long time, the influence causes the use and the maintenance of excavator equipment, and when dismantling oil pipe, but in the quick-witted admission pipe of floating dust in the environment, cause fluid pollution, to the aforesaid problem, the inventor proposes a hydraulic pressure quick change device control circuit for excavator is used for solving above-mentioned problem.
Disclosure of Invention
The oil pipe is disassembled and assembled, so that residual oil in the oil pipe generally overflows out of the pipe and flows onto excavator equipment, a large amount of dust is adsorbed by oil stains for a long time, the use and maintenance of the excavator equipment are influenced, and the oil pollution problem is caused because dust floating in the environment can enter the pipe when the oil pipe is disassembled; the invention aims to provide a hydraulic quick-change device control circuit for an excavator.
In order to solve the technical problem, the invention adopts the following technical scheme: the utility model provides a hydraulic pressure quick change device control circuit for excavator, includes out oil pipe, it has the quick-operation joint to go out oil pipe threaded connection, the one end that goes out oil pipe was kept away from to the quick-operation joint rotates and is connected with fastening assembly, fastening assembly threaded connection has the connecting piece, the one end inner wall fixedly connected with plugging device that goes out oil pipe is kept away from to the connecting piece, sliding connection has quick latch device in the plugging device, quick latch device is connected with the quick-operation joint, connecting piece surface fixedly connected with advances oil pipe, goes out oil pipe and advances when oil pipe connects, is connected with fastening assembly through the quick-operation joint, enables the plugging device to open to realize going out oil pipe and advancing oil pipe quick intercommunication, and go out oil pipe and advance oil pipe when breaking away from the connection, the plugging device can make advance oil pipe and realize the shutoff, prevent that the interior fluid of oil pipe from spilling over.
Preferably, the oil outlet pipe is connected with a hose, one end of the oil outlet pipe is fixedly provided with a threaded joint, the outer surface of the threaded joint is in threaded connection with a quick joint, and the quick joint can be in threaded connection with the threaded joint of the oil outlet pipe, so that the quick joint can be detachably connected with the oil outlet pipe; the quick connector comprises a first cavity shell, the first cavity shell is in threaded connection with a threaded connector in a threaded manner, the first cavity shell is fixedly connected with a first conical shell, the outer surface of one end, far away from the oil outlet pipe, of the first conical shell is provided with an annular clamping groove, the outer surface of one end, far away from the oil outlet pipe, of the first conical shell is provided with a first sealing ring, the annular clamping groove is internally connected with a quick clamping device in a clamping manner, a first piston sleeve is arranged in the first conical shell, the outer surface of the first piston sleeve is provided with a first conical blocking ring, the outer surface of the first conical blocking ring is connected with the conical inner wall of the first conical shell in a laminating manner, one end, close to the oil outlet pipe, of the first piston sleeve is connected with a first fixing seat in a sliding manner, the first fixing seat is provided with a plurality of first through holes, the first fixing seat is fixedly arranged at the inner wall of the first cavity shell, a first spring is fixedly connected between the first fixing seat and the first piston sleeve, the surface of one end, far away from the oil outlet pipe, is provided with a first conical shell, an annular rotating groove is rotatably connected with a fastening assembly, the first conical shell is fixedly connected with the inner wall of the first piston sleeve, and the first conical shell, and the first piston sleeve is connected with the outer surface of the first conical shell in a sealing effect under the first conical sealing effect is achieved.
Preferably, the fastening assembly comprises a nut, a threaded sleeve is fixedly arranged in the nut, a second sealing ring is sleeved on the outer surface of the threaded sleeve, one end, close to the oil outlet pipe, of the threaded sleeve is rotatably arranged in the annular rotary groove, the threaded sleeve is internally connected with the connecting piece, the connecting piece and the oil inlet pipe are fixedly installed, the nut is rotated to enable the threaded sleeve to be in threaded connection with the connecting piece, and the first cavity shell can move towards the connecting piece; the connecting piece comprises a threaded retaining sleeve, the threaded retaining sleeve is installed in the threaded sleeve in a threaded manner, the threaded retaining sleeve is fixedly connected with a connecting sleeve, the inner wall of one end, far away from the oil outlet pipe, of the connecting sleeve is fixedly connected with the plugging device, the outer surface of one end, far away from the oil outlet pipe, of the connecting sleeve is fixedly connected with an oil inlet pipe, and the connecting piece is fixedly connected with the plugging device and the oil inlet pipe; the oil inlet pipe is connected with a hard pipe, the oil inlet pipe is fixedly connected with an internal thread sleeve, the internal thread sleeve is internally connected with a connecting sleeve in a threaded manner, and the hard pipe is fixedly installed on the excavator, so that the nut is rotated, the first cavity shell is moved towards the connecting piece, and the plugging device is opened.
Preferably, the stopper includes a second cavity shell, a second fixed seat is fixedly installed on an inner wall of the second cavity shell, the second fixed seat is connected with a second piston sleeve in a sliding manner, a second conical blocking ring is arranged on an outer surface of the second piston sleeve, a second conical shell is connected to an outer surface of the second conical blocking ring in a fitting manner, the second conical shell is fixedly connected with the second cavity shell, a plurality of second through holes are formed in the second fixed seat, a second spring is fixedly connected between the second fixed seat and the second conical blocking ring, two sliding grooves and an inner annular groove are formed in an inner wall of the second conical shell, a sliding rod is fixedly arranged in each sliding groove, a third spring is sleeved on an outer surface of each sliding rod, the outer surface of each sliding rod is connected with a quick clamping device in a sliding manner, the second piston sleeve provided with the second conical blocking ring can be attached to a conical inner wall of the second conical shell under the action of the second spring under the normal state of the oil inlet pipe, so that the oil inlet pipe is blocked, and when the nut is rotated, the first cavity shell can move towards the connecting piece to push the second piston sleeve to move, so that the outer surface of the second conical blocking ring is separated from the conical shell of the second conical shell, and then the second conical shell is communicated with the oil inlet pipe; the quick clamping device comprises a spline shell, the end face of the spline shell is connected with a first conical shell in a laminating mode, the outer surface of the spline shell is slidably mounted in a sliding groove, a conical groove is formed in the spline shell, a conical head is arranged in the conical groove, one side surface of the conical head is connected with the end face of a first piston sleeve in a laminating mode, a push rod is fixedly arranged on the other side surface of the conical head, the push rod movably penetrates through the spline shell and is fixedly connected with a second piston sleeve, a fourth spring is sleeved on the outer surface of the push rod and is fixedly arranged between the conical head and the inner wall of the conical groove, a plurality of positioning heads are connected with the outer surface of the conical head in a laminating mode, a fifth spring is fixedly arranged on each positioning head, one end of the fifth spring is fixedly arranged at the inner wall of the inner ring groove, the positioning heads are clamped in the ring-shaped clamping grooves, the first conical shell can push the spline shell to slide along the sliding groove, and when the first piston sleeve pushes the conical head and the push rod to move, the first piston sleeve and the second piston sleeve can overcome corresponding spring elasticity, so that an oil inlet pipe is communicated with an outlet pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the outer surface of the first conical plugging ring can be connected with the inner wall of the first conical shell in a sealing mode under the action of the spring, the outer surface of the second conical plugging ring is connected with the inner wall of the second conical shell in a sealing mode, the effect that the oil inlet pipe and the oil outlet pipe can be plugged in a normal state is achieved, dust is prevented from entering, and when the oil inlet pipe and the oil outlet pipe are detached and separated, the oil inlet pipe and the oil outlet pipe are automatically plugged, so that oil liquid in the oil inlet pipe can be prevented from overflowing;
2. the nut is rotated to enable the threaded sleeve to be in threaded connection with the connecting piece, the outer surface of the second conical plugging ring is separated from the contact with the conical inner wall of the second conical shell, and the outer surface of the first conical plugging ring is separated from the contact with the inner wall of the first conical shell, so that the oil inlet pipe and the oil outlet pipe are rapidly communicated, and the mounting and the use are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an overall schematic view of the present invention.
Fig. 2 is a schematic view of a structural fastening assembly of the present invention.
FIG. 3 is an enlarged schematic view of the point A in the structure of FIG. 2.
Fig. 4 is a schematic view of the quick connector of the present invention.
Fig. 5 is a schematic view of a structural connector of the present invention.
Figure 6 is a schematic view of the occluder of the present invention.
FIG. 7 is an enlarged view of the point B in FIG. 7.
In the figure: 1. an oil outlet pipe; 11. a hose; 12. a threaded joint; 2. a quick connector; 21. a first cavity housing; 211. an annular rotary groove; 22. a first conical housing; 221. an annular neck; 222. a first seal ring; 23. a first piston sleeve; 231. a first conical plug ring; 24. a first spring; 25. a first fixed seat; 251. a first through hole; 3. a fastening assembly; 31. a nut; 32. a threaded sleeve; 33. a second seal ring; 4. a connecting member; 41. a threaded spacer sleeve; 43. connecting sleeves; 5. an occluder; 51. a second cavity housing; 52. a second fixed seat; 521. a second through hole; 53. a second spring; 54. a second piston sleeve; 541. a second conical plugging ring; 55. a second conical housing; 551. a chute; 552. a third spring; 553. a slide bar; 554. an inner ring groove; 6. an oil inlet pipe; 61. a hard tube; 62. an internal thread sleeve; 7. a quick clamping device; 71. a spline housing; 711. a tapered groove; 72. a push rod; 73. a fourth spring; 74. positioning the head; 75. a conical head; 76. and a fifth spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is as follows: as shown in fig. 1-7, the invention provides a hydraulic quick-change device control circuit for an excavator, which comprises an oil outlet pipe 1, wherein the oil outlet pipe 1 is in threaded connection with a quick connector 2, one end of the quick connector 2, which is far away from the oil outlet pipe 1, is rotatably connected with a fastening assembly 3, the fastening assembly 3 is in threaded connection with a connecting piece 4, the inner wall of one end, which is far away from the oil outlet pipe 1, of the connecting piece 4 is fixedly connected with a stopper 5, the stopper 5 is in sliding connection with a quick clamping device 7, the quick clamping device 7 is in clamping connection with the quick connector 2, and the outer surface of the connecting piece 4 is fixedly connected with an oil inlet pipe 6.
Through adopting above-mentioned technical scheme, when going out oil pipe 1 and advancing oil pipe 6 and connecting, be connected with fastening assembly 3 through quick-operation joint 2, enable plugging device 5 and open to realize going out oil pipe 1 and advancing oil pipe 6 and communicate fast, and go out oil pipe 1 and advance oil pipe 6 and when breaking away from the connection, plugging device 5 enables to advance oil pipe 6 and realizes the shutoff, prevents to advance the fluid in the oil pipe 6 and spills over.
The oil outlet pipe 1 is connected with a hose 11, one end of the oil outlet pipe 1 is fixedly provided with a threaded joint 12, and the outer surface of the threaded joint 12 is in threaded connection with a quick connector 2.
Through adopting above-mentioned technical scheme, quick-operation joint 2 can with go out the 12 threaded connection of screwed joint of oil pipe 1, make quick-operation joint 2 can realize dismantling with oil pipe 1 and be connected.
Quick-operation joint 2 is including first cavity shell 21, threaded connection 12 is connected to first cavity shell 21 internal thread, the first conical shell 22 of first cavity shell 21 fixedly connected with, first conical shell 22 keeps away from the one end surface of oil pipe 1 and has seted up ring groove 221, the one end surface that oil pipe 1 was kept away from to first conical shell 22 installs first sealing washer 222, card connection quick latch device 7 in the ring groove 221, be provided with first piston sleeve 23 in the first conical shell 22, first piston sleeve 23 surface is provided with first toper stifled ring 231, the surface of first toper stifled ring 231 and the laminating of the toper inner wall of first conical shell 22 are connected, sliding connection has first fixing base 25 in the one end that first piston sleeve 23 is close to oil pipe 1, a plurality of first through-holes 251 have been seted up on the first fixing base 25, first fixing base 25 is fixed to be located first cavity shell 21 inner wall department, fixedly connected with first spring 24 between first fixing base 25 and the first piston sleeve 23, the one end surface that oil pipe 1 was kept away from to first cavity shell 21 has seted up ring groove 211, the internal rotation of fastening subassembly 3.
Through adopting above-mentioned technical scheme, first cavity shell 21 and play oil pipe 1 threaded connection, first fixing base 25 fixed mounting is in first cavity shell 21 inner wall department, and the effect through first spring 24 makes the surface of first piston sleeve 23 that is provided with first toper stifled ring 231 be connected with the laminating of first toper casing 22 inner wall, realizes the sealed effect of first cavity shell 21 under the normality to it gets into to make the interior reduction dust of play oil pipe 1.
The fastening component 3 comprises a nut 31, a threaded sleeve 32 is fixedly arranged in the nut 31, a second sealing ring 33 is sleeved on the outer surface of the threaded sleeve 32, one end, close to the oil outlet pipe 1, of the threaded sleeve 32 is rotatably arranged in the annular rotating groove 211, and the threaded sleeve 32 is connected with the connecting piece 4 in a threaded mode.
By adopting the technical scheme, the connecting piece 4 and the oil inlet pipe 6 are fixedly installed, the nut 31 is rotated to enable the threaded sleeve 32 to be in threaded connection with the connecting piece 4, and the first cavity shell 21 can move towards the direction of the connecting piece 4.
The connecting piece 4 comprises a thread blocking sleeve 41, the thread blocking sleeve 41 is installed in the thread sleeve 32 in a threaded manner, the thread blocking sleeve 41 is fixedly connected with a connecting sleeve 43, the inner wall of one end, far away from the oil outlet pipe 1, of the connecting sleeve 43 is fixedly connected with the plugging device 5, and the outer surface of one end, far away from the oil outlet pipe 1, of the connecting sleeve 43 is fixedly connected with the oil inlet pipe 6.
Through adopting above-mentioned technical scheme, connecting piece 4 and plugging device 5, advance oil pipe 6 equal fixed connection.
The oil inlet pipe 6 is connected with a hard pipe 61, the oil inlet pipe 6 is fixedly connected with an internal thread sleeve 62, and the internal thread sleeve 62 is connected with the connecting sleeve 43 in an internal thread mode.
By adopting the technical scheme, the hard tube 61 is fixedly arranged on the excavator, so that the nut 31 is rotated to enable the first cavity shell 21 to move towards the connecting piece 4 for opening the plugging device 5.
The blocking device 5 comprises a second cavity shell 51, a second fixing seat 52 is fixedly installed at the inner wall of the second cavity shell 51, a second piston sleeve 54 is connected to the second fixing seat 52 in a sliding mode, a second conical blocking ring 541 is arranged on the outer surface of the second piston sleeve 54, a second conical shell 55 is connected to the outer surface of the second conical blocking ring 541 in a fitting mode, the second conical shell 55 is fixedly connected with the second cavity shell 51, a plurality of second through holes 521 are formed in the second fixing seat 52, a second spring 53 is fixedly connected between the second fixing seat 52 and the second conical blocking ring 541, two sliding grooves 551 and an inner annular groove 554 are formed in the inner wall of the second conical shell 55, a sliding rod 553 is fixedly arranged in the sliding groove 551, a third spring 552 is sleeved on the outer surface of the sliding rod, and the sliding rod 553 is connected with the quick clamping device 7 in a sliding mode.
By adopting the above technical scheme, in a normal state of the oil inlet pipe 6, under the action of the second spring 53, the second piston sleeve 54 provided with the second conical blocking ring 541 can be attached to the conical inner wall of the second conical shell 55, so that the oil inlet pipe 6 is blocked, thereby reducing the entry of dust into the oil inlet pipe 6, and when the nut 31 is rotated, the first cavity shell 21 moves towards the connecting piece 4 to push the second piston sleeve 54 to move, so that the outer surface of the second conical blocking ring 541 is separated from the contact with the conical inner wall of the second conical shell 55, thereby communicating the oil inlet pipe 6 with the oil outlet pipe 1.
The quick clamping device 7 comprises a spline housing 71, an end face of the spline housing 71 is in fit connection with the first conical housing 22, an outer surface of the spline housing 71 is slidably mounted in a sliding groove 551, a conical groove 711 is formed in the spline housing 71, a conical head 75 is arranged in the conical groove 711, one side surface of the conical head 75 is in fit connection with an end face of the first piston sleeve 23, a push rod 72 is fixedly arranged on the other side surface of the conical head 75, the push rod 72 movably penetrates through the spline housing 71 and is fixedly connected with the second piston sleeve 54, a fourth spring 73 is sleeved on the outer surface of the push rod 72, the fourth spring 73 is fixedly arranged between the conical head 75 and the inner wall of the conical groove 711, a plurality of positioning heads 74 are in fit connection with the outer surface of the conical head 75, a fifth spring 76 is fixedly arranged on the positioning heads 74, one end of the fifth spring 76 is fixedly arranged on the inner wall of the inner annular groove 554, and the positioning heads 74 are clamped in the annular clamping groove 221.
By adopting the above technical scheme, the first conical housing 22 can push the spline housing 71 to slide along the sliding groove 551, and when the first piston sleeve 23 pushes the conical head 75 and the push rod 72 to move, the first piston sleeve 23 and the second piston sleeve 54 can overcome the corresponding spring force, so that the oil inlet pipe 6 is communicated with the oil outlet pipe 1.
The working principle is as follows: during installation, the first cavity shell 21 and the first conical shell 22 which are fixedly connected are installed on the outer surface of the threaded joint 12 of the oil outlet pipe 1 in a threaded manner, the first fixing seat 25 is fixedly installed at the inner wall of the first cavity shell 21, the outer surface of the first piston sleeve 23 provided with the first conical blocking ring 231 is attached to the inner wall of the first conical shell 22 under the action of the first spring 24, so that the sealing effect of the first cavity shell 21 under a normal state is realized, similarly, the second piston sleeve 54 provided with the second conical blocking ring 541 can be attached to the conical inner wall of the second conical shell 55 under the action of the second spring 53 under the normal state of the oil inlet pipe 6, so that the oil inlet pipe 6 is blocked, when the nut 31 is rotated to enable the threaded sleeve 32 to be in threaded connection with the connecting piece 4, the first cavity shell 21 can move towards the connecting piece 4 direction, the first conical shell 22 can push the spline shell 71 to slide along the sliding groove 551, the first piston sleeve 23 pushes the conical head 75 and the push rod 72 to move, the first piston sleeve 23 and the second piston sleeve 54 can overcome the corresponding spring elasticity, namely, the outer surface of the conical blocking ring comes into contact with the inner wall of the conical inner wall of the second conical shell 541, and prevents the oil outlet pipe 1 from being detached from the oil outlet pipe 1, and the oil outlet pipe 1 from being detached from the oil outlet pipe 1.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a hydraulic pressure quick change device control circuit for excavator, includes oil pipe (1), its characterized in that: go out oil pipe (1) threaded connection and have quick-operation joint (2), the one end that goes out oil pipe (1) is kept away from in quick-operation joint (2) is rotated and is connected with fastening assembly (3), fastening assembly (3) threaded connection has connecting piece (4), the one end inner wall fixedly connected with plugging device (5) of going out oil pipe (1) are kept away from in connecting piece (4), sliding connection has quick latch device (7) in plugging device (5), quick latch device (7) are connected with quick-operation joint (2) joint, connecting piece (4) outer fixed surface is connected with into oil pipe (6).
2. The hydraulic quick-change device control circuit for the excavator according to claim 1, characterized in that a hose (11) is connected to the oil outlet pipe (1), a threaded joint (12) is fixedly arranged at one end of the oil outlet pipe (1), and the outer surface of the threaded joint (12) is in threaded connection with the quick-change device (2).
3. The hydraulic quick-change device control circuit for the excavator according to claim 2, wherein the quick connector (2) comprises a first cavity housing (21), the first cavity housing (21) is connected with the threaded connector (12) in a threaded manner, the first cavity housing (21) is fixedly connected with a first conical housing (22), an annular clamping groove (221) is formed in an outer surface of one end, away from the oil outlet pipe (1), of the first conical housing (22), a first sealing ring (222) is installed on an outer surface of one end, away from the oil outlet pipe (1), of the first conical housing (22), the annular clamping groove (221) is internally clamped and connected with the quick clamping device (7), a first piston sleeve (23) is arranged in the first conical housing (22), a first conical blocking ring (231) is arranged on an outer surface of the first piston sleeve (23), an outer surface of the first conical blocking ring (231) is in fit connection with a conical inner wall of the first conical housing (22), one end, close to the oil outlet pipe (1), of the first fixing seat (25) is connected with the first fixing seat (25) in a sliding manner, a plurality of through holes (25) are formed in the first piston sleeve (23), and a plurality of through holes (24) are formed in the first fixing seat (23) and are formed in a plurality of the first piston sleeve (24) and arranged between the first piston sleeve (23), an annular rotary groove (211) is formed in the surface of one end, far away from the oil outlet pipe (1), of the first cavity shell (21), and the fastening assembly (3) is rotationally connected in the annular rotary groove (211).
4. A hydraulic quick-change device control circuit for excavators according to claim 3, characterized in that the fastening assembly (3) comprises a nut (31), a threaded sleeve (32) is fixedly arranged in the nut (31), a second sealing ring (33) is sleeved on the outer surface of the threaded sleeve (32), one end of the threaded sleeve (32) close to the oil outlet pipe (1) is rotatably arranged in the annular rotating groove (211), and the threaded sleeve (32) is internally threaded with the connecting piece (4).
5. The hydraulic quick-change device control circuit for the excavator as claimed in claim 4, wherein the connecting member (4) comprises a threaded collar (41), the threaded collar (41) is threadedly mounted in the threaded collar (32), the threaded collar (41) is fixedly connected with a connecting sleeve (43), an inner wall of one end of the connecting sleeve (43) far away from the oil outlet pipe (1) is fixedly connected with the plugging device (5), and an outer surface of one end of the connecting sleeve (43) far away from the oil outlet pipe (1) is fixedly connected with the oil inlet pipe (6).
6. The hydraulic quick-change device control circuit for the excavator as claimed in claim 5, wherein the oil inlet pipe (6) is connected with a hard pipe (61), the oil inlet pipe (6) is fixedly connected with an internally threaded sleeve (62), and the internally threaded sleeve (62) is internally threaded with the connecting sleeve (43).
7. The hydraulic quick-change device control circuit for the excavator as claimed in claim 5, wherein the stopper (5) comprises a second cavity housing (51), a second fixed seat (52) is fixedly installed at an inner wall of the second cavity housing (51), a second piston sleeve (54) is slidably connected to the second fixed seat (52), a second conical blocking ring (541) is arranged on an outer surface of the second piston sleeve (54), a second conical housing (55) is fittingly connected to an outer surface of the second conical blocking ring (541), the second conical housing (55) is fixedly connected to the second cavity housing (51), a plurality of second through holes (521) are formed in the second fixed seat (52), a second spring (53) is fixedly connected between the second fixed seat (52) and the second conical blocking ring (541), two sliding grooves (551) and an inner annular groove (554) are formed in an inner wall of the second conical housing (55), a sliding groove (553) is fixedly formed in the sliding groove (551), a third spring (553) is sleeved on an outer surface of the sliding rod (553), and a sliding connection clamping device (7) is slidably connected to an outer surface of the sliding rod (552).
8. The hydraulic quick-change device control circuit for the excavator according to claim 7, wherein the quick clamping device (7) comprises a spline housing (71), an end face of the spline housing (71) is in fit connection with the first conical housing (22), an outer surface of the spline housing (71) is slidably mounted in a sliding groove (551), a conical groove (711) is formed in the spline housing (71), a conical head (75) is arranged in the conical groove (711), one side surface of the conical head (75) is in fit connection with an end face of the first piston sleeve (23), the other side surface of the conical head (75) is fixedly provided with a push rod (72), the push rod (72) movably penetrates through the spline housing (71) and is fixedly connected with the second piston sleeve (54), a fourth spring (73) is sleeved on the outer surface of the push rod (72), the fourth spring (73) is fixedly arranged between the conical head (75) and an inner wall of the conical groove (711), the outer surface of the conical head (75) is connected with a plurality of positioning heads (74), a fifth spring (76) is fixedly arranged on the positioning head (74), and one end of the fifth spring (76) is clamped in an inner annular groove (554).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963928.4A CN115434384B (en) | 2022-08-11 | 2022-08-11 | Hydraulic quick-change device control loop for excavator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963928.4A CN115434384B (en) | 2022-08-11 | 2022-08-11 | Hydraulic quick-change device control loop for excavator |
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| Publication Number | Publication Date |
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| CN115434384A true CN115434384A (en) | 2022-12-06 |
| CN115434384B CN115434384B (en) | 2023-08-11 |
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| CN207634897U (en) * | 2017-12-11 | 2018-07-20 | 武汉威研工程技术有限公司 | A kind of duct closing type device |
| CN108953670A (en) * | 2018-08-17 | 2018-12-07 | 中航飞机起落架有限责任公司 | A kind of pressure conversion valve and its oil circuit switching control method |
| CN109751427A (en) * | 2018-06-11 | 2019-05-14 | 方南翔 | A kind of supply line connection structure |
| CN109990154A (en) * | 2019-04-23 | 2019-07-09 | 苏州速易德工业装备系统有限公司 | A kind of quick coupling of novel belt slide-valve |
| CN110242459A (en) * | 2019-07-15 | 2019-09-17 | 安徽理工大学 | A kind of quick mounting type automobile oil filter device |
| CN110359517A (en) * | 2018-10-22 | 2019-10-22 | 杨建波 | A kind of excavator anticreep hydraulic tube connector |
| CN111042965A (en) * | 2020-01-02 | 2020-04-21 | 十堰瑞凡汽车零部件有限公司 | High leakproofness joint design engine oil pipe |
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