CN210946949U - Full-automatic quick-change device of hydraulic excavator - Google Patents
Full-automatic quick-change device of hydraulic excavator Download PDFInfo
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- CN210946949U CN210946949U CN201921330455.4U CN201921330455U CN210946949U CN 210946949 U CN210946949 U CN 210946949U CN 201921330455 U CN201921330455 U CN 201921330455U CN 210946949 U CN210946949 U CN 210946949U
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Abstract
The utility model discloses a full-automatic quick-change device of a hydraulic excavator, which comprises an upper coupling piece and a lower coupling piece; the upper coupling piece comprises a quick female joint component and a pin rod which can be driven by a telescopic oil cylinder to move; the lower coupling piece comprises a quick male joint component, a pin shaft component, a taper pin matching sleeve matched with the pin rod and a lower spring guide pillar; the upper coupling piece can be hooked on the pin shaft assembly at one end of the lower coupling piece through the hook-shaped part at one end of the upper coupling piece and rotates around the central shaft of the pin shaft assembly, so that the quick female joint at the other end of the upper coupling piece is correspondingly communicated with the quick male joint at the other end of the lower coupling piece, and the pin rod is driven by the telescopic oil cylinder to extend into the taper pin matching sleeve to realize the mechanical locking of the upper coupling piece and the lower coupling piece. Hydraulic connection is realized through coupling of the quick male joint component and the quick female joint component, and the posture is adjusted through guiding of the guide post and adjustment of the spring, so that connection accuracy and reliability are guaranteed, and operation is safe.
Description
Technical Field
The utility model relates to a full-automatic quick change device of hydraulic shovel belongs to engineering machine tool technical field.
Background
With the continuous development of the engineering machinery industry, the engineering machinery operation machine is increasingly receiving high attention, and becomes a new development field in the industry gradually. As one of the most widely used engineering machines, the hydraulic excavator has the fastest development of its working machine, the strongest functionality of the machine, and relatively high technical content, and the hydraulic excavator has been developed from an "excavator" equipped with a single bucket into a multifunctional engineering construction machine with a manipulator function. In order to realize the quick replacement of the excavator operating tools efficiently, simply, safely and reliably, various operating tool quick replacement devices are developed by successive researches in various countries around the world.
The quick-change device is an intermediate connecting device additionally arranged between a bucket rod and a connecting rod of the excavator and an operating machine, is mainly used for realizing the quick change of the operating machine with different functions, can improve the operating range and the operating efficiency of the hydraulic excavator, and simultaneously ensures the safety and the reliability in the operating process. According to the use automation degree, the quick-change device can be divided into three types of manual type, semi-automatic type and full-automatic type, wherein the full-automatic type quick-change device represents the leading technology of the device, when the full-automatic quick-change device is used for replacing hydraulic working machines, the full-automatic quick-change device does not need to be manually engaged in locking or unlocking machines, and meanwhile, the full-automatic quick-change device does not need to be manually engaged in connection or disconnection of a hydraulic pipeline connector, the replacing process of the whole working machine can be completed only by one person in a control cabin, and the application of the full-automatic quick-change device on the hydraulic excavator further saves the consumption of manpower, material resources and time, improves the working efficiency of the excavator and expands the application range of the hydraulic.
At present, the prior art related to the present invention, typically mainly embodied in the following patents:
(1) excavator and quick change device thereof
Authorization notice number: CN103046595B, the quick change device disclosed in this patent adopts the inclined plane to press against the connecting pin shaft of the bucket to realize mechanical connection and locking, and the slider realizes self-locking by adjusting the included angle between the bottom surface of the slider and the inclined plane.
(2) Quick-change connector of excavator
Authorization notice number: CN207260224U, the excavator quick change connector disclosed in this patent utilizes the hydro-cylinder is flexible to drive the rotation of front hook portion, and then realizes the block with the operation machines, in order to ensure the risk of front hook portion unhooking in the course of the work, is equipped with safe bolt, is equipped with the position of putting in order to put in order when safe bolt does not use simultaneously, prevents to lose.
(3) Hydraulic quick-change device of excavator working machine
Authorization notice number: CN203684301U, the hydraulic pressure quick change device that this patent disclosed utilizes the hydro-cylinder flexible guide latch segment that drives to slide in the locking plate to realize the locking of quick change device and operation machines, quick change hydro-cylinder hydraulic connection hydraulic lock simultaneously, whole quick change device simple structure, easily processing preparation, convenient operation is reliable.
The analysis has quick change device of different structures now, mainly has following shortcoming:
(1) mechanical connection and locking structure are complicated, and the fail-safe nature is low in the use, and partial quick change device need the manual work to pull out the round pin axle in order to ensure the reliability, has increased the operation complexity.
(2) Most quick-change devices cannot realize automatic connection of a hydraulic connector, when the quick-change devices are connected with hydraulic operation machines (such as hydraulic shears, grab buckets, rock saws and the like), the quick-change connectors need to be manually pulled and inserted, potential safety hazards exist in the operation process, full-automatic replacement of the whole process cannot be realized, the replacement efficiency of the operation machines is low, and meanwhile, the labor cost is increased.
(3) The quick-change device is not strong in universality, hydraulic connection interfaces cannot be unified when the quick-change device is connected with various excavator operation machines, when the quick-change device is used with the operation machines with multiple hydraulic loops in a matched mode, the arrangement of hydraulic pipelines on an excavating arm is complex, mistakes are easily made in the butt joint process of hydraulic connectors, and the whole working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves:
to prior art's shortcoming, the utility model discloses mainly solve present quick change device mechanical connection complicacy and the low problem of reliability. Further, the problem that the efficiency of the existing quick-change device for connecting the operation machines is low can be solved. Further, the problem of low universality of the conventional quick-change device can be solved.
The utility model provides a complete technical scheme:
a full-automatic quick-change device of a hydraulic excavator comprises an upper coupling piece and a lower coupling piece;
the upper coupling piece comprises a quick female joint assembly and a pin rod which can be driven by a telescopic oil cylinder to move; one end of the upper coupling piece is provided with a hook-shaped part, and the other end of the upper coupling piece is provided with a quick female joint component; the quick female joint assembly comprises a plurality of quick female joints arranged on a quick female joint mounting plate, and two guide holes/guide posts are arranged on the quick female joint mounting plate;
the lower coupling piece comprises a quick male joint component, a pin shaft component and a taper pin matching sleeve matched with the pin rod; one end of the lower coupling piece is provided with a pin shaft assembly, and the other end of the lower coupling piece is provided with a quick male connector assembly; the quick male joint component comprises a quick male joint which is arranged on a quick male joint mounting plate and can be correspondingly connected with the quick female joint, and the quick male joint mounting plate is provided with guide posts/guide holes matched with the corresponding guide holes/guide posts;
the upper coupling piece can be hooked on the pin shaft assembly at one end of the lower coupling piece through the hook-shaped part at one end of the upper coupling piece and rotates around the central shaft of the pin shaft assembly, so that the quick female joint at the other end of the upper coupling piece is correspondingly communicated with the quick male joint at the other end of the lower coupling piece, and the pin rod is driven by the telescopic oil cylinder to extend into the taper pin matching sleeve to realize the mechanical locking of the upper coupling piece and the lower coupling piece.
Further, a quick male joint assembly is provided on the base of the lower coupling by an adjustment spring.
Furthermore, a limiting block for limiting the limit coupling position of the relative movement of the upper coupling piece and the lower coupling piece is arranged on the upper coupling piece and/or the lower coupling piece.
Furthermore, the telescopic oil cylinder is fixed on the base body of the upper coupling piece, and the cylinder rod of the telescopic oil cylinder is hinged on a connecting frame; the pin rod is arranged on the connecting frame, and the guide sleeve arranged on the base body of the upper coupling piece supports and guides the movement of the pin rod.
Furthermore, a spring is sleeved on the pin rod facing to one side of the connecting frame of the telescopic oil cylinder.
Furthermore, the front end part of the pin rod facing the taper pin matching sleeve is in a conical shape, a circular truncated cone shape or a wedge shape.
Further, the taper pin matching sleeve is matched with the pin rod and at least can accommodate the front end part of the pin rod.
Further, the telescopic oil cylinder is provided with a hydraulic lock.
Furthermore, the upper coupling piece is connected with a bucket rod and a connecting rod of the excavating arm through a first pin shaft arranged at the upper part of the upper coupling piece.
Further, a lower portion of the lower coupling is connected to the work implement.
The utility model discloses the beneficial effect who reaches:
(1) the utility model provides a full-automatic quick change device adopts rear portion hook pin to connect and anterior taper pin cooperation mode on mechanical structure, and the taper pin cooperation is realized through sharp concertina movement, has self-centering and auto-lock performance, and telescopic machanism installs locking compression spring, and flexible hydro-cylinder is equipped with the hydraulic pressure lock simultaneously, and whole mechanical connection guarantees simultaneously on hydraulic pressure and mechanical structure to connect the reliability, has wholly ensured the security when being connected with the operation machines.
(2) The utility model provides a full-automatic quick change device can realize the automatic connection of hydraulic pressure oil circuit, and at the in-process of changing with hydraulic pressure type operation machines, through quick male joint subassembly and the quick female joint subassembly of front end setting, when carrying out mechanical connection, carry out hydraulic pressure quick-operation joint's butt joint simultaneously, saved the artifical process of inserting quick-operation joint that pulls out of traditional quick change device, when guaranteeing operation security, greatly improved the operating efficiency, reduced the cost of labor.
(3) The utility model provides a full-automatic quick change device has unified the hydraulic pressure interface of connecting, and unified business turn over hydraulic fluid port position on the oil circuit overall arrangement, the equipartition is put at quick change device front end, and the oil pipe of conveniently excavating arm end and operation machines end arranges, and applicable in various hydraulic pressure class operation machines, has improved quick change device's commonality.
Drawings
FIG. 1 is a schematic structural view of a fully automatic quick-change device;
FIG. 2 is an exploded view of the upper coupling member;
FIG. 3 is a schematic top view of an upper coupling element base structure;
FIG. 4 is a schematic bottom view of the upper coupling element base structure;
FIG. 5 is an exploded view of the quick box assembly;
FIG. 6 is an exploded view of the taper pin lock assembly;
FIG. 7 is an exploded view of the lower coupling;
FIG. 8 is a schematic view of the lower coupling element base structure assembly;
FIG. 9 is an exploded view of the quick male connector assembly;
fig. 10 is a schematic structural view of the fully automatic quick-change device connecting the work implement and the excavating arm.
The coupling piece comprises, by weight, 1.1, an upper coupling piece base body, 1.1-1, a supporting plate, 1.1-2, a first connecting plate, 1.1-3, a second connecting plate, 1.1-4, a component mounting plate, 1.1-5, a front guide sleeve mounting seat, 1.1-6, a rear guide sleeve mounting seat, 1.1-7, an oil cylinder mounting seat, 1.1-8, a hook plate, 1.1-9, a reinforcing plate, 1.1-10, a mounting block, 1.1-11, a limiting block, 1.1-12, a pin shaft fixing sleeve, 1.2, a quick female joint component, 1.2-1, a quick female joint mounting plate, 1.2-2, a quick female joint, 1.3, a conical pin locking component, 1.3-1, a conical pin rod, 1.3-2, a connecting frame, 1.3-3, a locking nut, 1.3-4, a spacer, 1.3-5, a locking spring, 1-1, The device comprises a front guide sleeve, 1-2 parts, a protective cover, 1-3 parts, a protective bottom plate, 1-4 parts, a guide sleeve fixing plate, 1-5 parts, a telescopic oil cylinder pressing plate, 1-6 parts, a rear guide sleeve, 1-7 parts, a telescopic oil cylinder assembly, 1-8 parts, a second pin shaft, 1-9 parts, a first pin shaft, 2 parts, a lower coupling part, 2.1 parts, a lower coupling part base body, 2.1-1 parts, a first side plate, 2.1-2 parts, a bottom plate, 2.1-3 parts, a second side plate, 2.1-4 parts, a vertical plate, 2.1-5 parts, a taper pin matching sleeve, 2.1-6 parts, a spring mounting seat, 2.1-7 parts, a reinforcing rib plate, 2.1-8 parts, a reinforcing bent plate, 2.1-9 parts, a fixed bent plate, 2.2 parts, a quick male joint, 2.2-1 parts, a quick male joint mounting plate, 2.2.2-2 parts, a quick male joint, 2.2, 2.2-5 parts of an adjusting spring, 2-1 part of an upper spring guide post, 2-2 parts of a pin shaft assembly, 2-3 parts of a pressing block, 2-4 parts of a lower spring guide post, 2-5 parts of a lower limiting block, 2-6 parts of a stop post and a protection plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a full-automatic quick-change device for a hydraulic excavator comprises an upper coupling part 1 and a lower coupling part 2, wherein the upper coupling part 1 can be connected with a bucket rod and a connecting rod on an excavating arm, and the lower coupling part 2 can be connected with a working machine (hydraulic shears, a breaking hammer, a grab bucket, a hydraulic ram, a ripper, etc.).
As shown in fig. 2, the upper coupling member 1 includes an upper coupling member base 1.1, a quick female joint assembly 1.2 mounted on the upper coupling member base 1.1, a taper pin locking assembly 1.3, a front guide sleeve 1-1, a protective cover 1-2, a protective base plate 1-3, a guide sleeve fixing plate 1-4, a telescopic cylinder pressing plate 1-5, a rear guide sleeve 1-6, a telescopic cylinder assembly 1-7, a second pin 1-8, and a first pin 1-9. The upper coupling piece 1 is connected with a bucket rod and a connecting rod of the digging arm through two first pin shafts 1-9 penetrating through the upper coupling piece base body 1.1; the quick female joint component 1.2 is mounted at the front end of the upper coupling piece base body 1.1 through a screw, the protective cover 1-2 is mounted on the upper coupling piece base body 1.1 through a bolt and covers the quick female joint component 1.2 to protect the whole quick female joint component 1.2, and a square opening in the protective cover 1-2 facilitates mounting and arrangement of a hydraulic pipeline on the quick female joint component 1.2; the front guide sleeve 1-1 and the rear guide sleeve 1-6 are respectively arranged on an upper coupling piece base body 1.1, wherein the front guide sleeve 1-1 is in an interference connection mode, the rear guide sleeve 1-6 is fixedly pressed through a guide sleeve fixing plate 1-4, and the front guide sleeve 1-1 and the rear guide sleeve 1-6 form a front support and a rear support which are used for supporting and guiding the front and rear movement of the taper pin locking component 1.3; the telescopic oil cylinder assembly 1-7 is installed at the rear part of the upper coupling piece base body 1.1 through a bolt and is simultaneously pressed by a telescopic oil cylinder pressing plate 1-5, the taper pin locking assembly 1.3 is hinged with a cylinder rod in the telescopic oil cylinder assembly 1-7 through a second pin shaft 1-8, the telescopic oil cylinder assembly 1-7 can drive the taper pin locking assembly 1.3 to move back and forth in the front guide sleeve 1-1 and the rear guide sleeve 1-6, and the telescopic oil cylinder assembly 1-7 is provided with a hydraulic lock, so that the position after the telescopic oil cylinder assembly 1-7 moves in place is unchanged; the protective base plate 1-3 is finally mounted on the upper coupling part base body 1.1 by means of screws in order to protect all components inside the upper coupling part base body 1.1.
As shown in fig. 3 and 4, the upper coupling base 1.1 is a welded structure. A first connecting plate 1.1-2 and a second connecting plate 1.1-3 are welded between the two support plates 1.1-1, and hook-shaped structures are arranged on the support plates 1.1-1 and can be used as hooks for lifting heavy objects; the first connecting plate 1.1-2 is transversely arranged, the upper surface and the lower surface of the first connecting plate are welded with component mounting plates 1.1-4, rear guide sleeve mounting seats 1.1-6 and oil cylinder mounting seats 1.1-7, the first connecting plate 1.1-2 is provided with a round hole for mounting a second pin shaft 1-8 and a square hole for mounting an oil inlet and outlet way of a telescopic oil cylinder component 1-7, the component mounting plates 1.1-4 are used for mounting a quick female joint component 1.2, the rear guide sleeve mounting seats 1.1-6 are used for mounting rear guide sleeves 1-6 and guide sleeve fixing plates 1-4, and the oil cylinder mounting seats 1.1-7 are used for mounting telescopic oil cylinder components 1-7; the second connecting plate 1.1-3 is longitudinally arranged and is simultaneously welded with the two supporting plates 1.1-1 and the first connecting plate 1.1-2, two front guide sleeve mounting seats 1.1-5 are symmetrically welded on the second connecting plate 1.1-3, and the front guide sleeve mounting seats 1.1-5 are used for mounting the front guide sleeves 1-1; the hook plates 1.1-8 are welded into the hole grooves of the two support plates 1.1-1, meanwhile, the reinforcing plates 1.1-9 are welded on the two sides, and when the upper coupling piece 1 is coupled with the lower coupling piece 2, the upper coupling piece 1 is firstly connected with the lower coupling piece 2 through the hook plates 1.1-8; two limiting blocks 1.1-11 are symmetrically welded on the side surfaces of two supporting plates 1.1-1 and used for limiting the position of the upper coupling piece 1 when being coupled with the lower coupling piece 2, two pin shaft fixing sleeves 1.1-12 are welded on the outer side surface of one supporting plate 1.1-1 and used for installing and fixing two first pin shafts 1-9 in the upper coupling piece 1, four installing blocks 1.1-10 are welded on the inner side surfaces of the two supporting plates 1.1-1, and the protective bottom plate 1-3 can be installed on an installing plane formed by the four installing blocks 1.1-10, the second connecting plate 1.1-2 and the two reinforcing plates 1.1-9 through bolts.
As shown in fig. 5, the quick female connector assembly 1.2 mainly comprises a quick female connector mounting plate 1.2-1 and five quick female connectors 1.2-2. Five quick female connectors 1.2-2 are directly arranged on the quick female connector mounting plate 1.2-1, and five oil paths can be provided, wherein the five oil paths comprise two groups of oil inlet and outlet paths with different flow rates and pressures and an oil drainage loop.
As shown in fig. 6, the taper pin locking assembly 1.3 is a mechanical fitting. Two conical pin rods 1.3-1 are symmetrically arranged on the connecting frame 1.3-2, locking nuts 1.3-3 lock the conical pin rods 1.3-1, spacers 1.3-4 and anti-loosening springs 1.3-5 are arranged at the rear parts of the conical pin rods 1.3-1, the spacers 1.3-4 mainly provide mounting planes for the anti-loosening springs 1.3-5, and the anti-loosening springs 1.3-5 are matched with an upper coupling piece base body 1.1 and used for preventing the conical pin rods 1.3-1 from loosening. In practical use, the connecting frame 1.3-2 is hinged with a cylinder rod in the telescopic oil cylinder assembly 1-7, and the front part of the conical pin rod 1.3-1 is matched and locked with parts in the lower coupling piece 2.
As shown in FIG. 7, the lower coupling piece 2 comprises a lower coupling piece base body 2.1, a quick male joint component 2.2, a pin shaft component 2-1, a pressing block 2-2, a lower spring guide post 2-3, a lower limiting block 2-4, a catch column 2-5 and a protection plate 2-6, wherein the quick male joint component is mounted on the lower coupling piece base body 2.1. The quick male joint component 2.2 is mounted at the front end of the lower coupling piece base body 2.1, the bottom of the quick male joint component is limited by the lower limiting block 2-4, the top of the quick male joint component is limited by the stop pillar 2-5, the protection plate 2-6 is mounted on the lower coupling piece base body 2.1 through bolts and covers the quick male joint component 2.2 to protect the quick male joint component 2.2, and a notch at the bottom of the protection plate 2-6 facilitates mounting and arrangement of a hydraulic pipeline on the quick male joint component 2.2; the lower spring guide post 2-3 is arranged on the lower coupling piece base body 2.1 through a bolt and used for guiding the movement of the spring; the pin shaft assembly 2-1 is arranged at the rear end of the lower coupling piece base body 2.1, the position is limited by the pressing block 2-2, and when the coupler is actually used, the hook plate 1.1-8 in the upper coupling piece 1 firstly hooks the pin shaft in the lower pin shaft assembly 2-1.
As shown in fig. 8, the lower coupling body 2.1 is a welded structure. The integral framework of the lower coupling piece base body 2.1 is formed by welding two first side plates 2.1-1, a bottom plate 2.1-2, two second side plates 2.1-3 and a vertical plate 2.1-4 together, reinforcing rib plates 2.1-7 are welded on the bottom plate 2.1-2 and the vertical plate 2.1-4, and reinforcing bent plates 2.1-8 are welded with the first side plates 2.1-1, the bottom plate 2.1-2 and the second side plates 2.1-3; the two first side plates 2.1-1 are provided with mounting holes for mounting the pin shaft assembly 2-1, and one first side plate 2.1-1 is welded with a fixed bent plate 2.1-9 for mounting a pressing block 2-2 in the lower coupling piece 2 to realize the position limitation of the pin shaft assembly 2-1; the bottom plate 2.1-2 is fixedly connected with an operating machine in a bolt connection or welding mode in actual use; two spring mounting seats 2.1-6 are welded on the side surfaces of the second side plates 2.1-3 and used for mounting lower spring guide posts 2-3 and a quick male connector assembly 2.2; two taper pin matching sleeves 2.1-5 are symmetrically welded on the vertical plate 2.1-4, and in actual use, the taper pin matching sleeves are in taper matching with the taper pin rods 1.3-1 in the upper coupling piece 1.
As shown in FIG. 9, the quick male joint assembly 2.2 is composed of a quick male joint mounting plate 2.2-1, a quick male joint 2.2-2, a guide post 2.2-3, an adjusting spring 2.2-4 and a spring upper guide post 2.2-5. The quick male joint component 2.2 is coupled with the quick female joint component 1.2 to realize hydraulic oil circuit connection of the full-automatic quick-change device, wherein the quick male joint 2.2-2 is correspondingly connected with the quick female joint 1.2-2 to provide two groups of oil inlet and outlet circuits with different flow and pressure and an oil drainage circuit; the guide column 2.2-3 is fixed on the quick male connector mounting plate 2.2-1 through a nut and used for realizing guide and matching with a hole on the quick female connector mounting plate 1.2-1; the upper spring guide posts 2.2-5 are installed on the quick male connector installation plate 1.2-1 through screws and are simultaneously inserted into the adjusting springs 2.2-4, and the four adjusting springs 2.2-4 are used for realizing the posture adjustment of the whole quick male connector assembly 2.2 in practical use.
As shown in fig. 10, the fully automatic quick-change device connects the working implement and the excavating arm, and the working process of the fully automatic quick-change device is as follows: firstly, controlling a telescopic oil cylinder assembly 1-7 in an upper coupling piece 1 to be in a fully contracted state, and adjusting the posture and the position of the upper coupling piece 1 to enable a hook plate 1.1-8 in the upper coupling piece 1 to hook a pin shaft in a pin shaft assembly 2-1 of a lower coupling piece 2; then the upper coupling piece 1 is operated to rotate around the lower coupling piece 2, in the process, a guide column 2.2-3 in the lower coupling piece 2 is guided and matched with a hole in a quick female joint mounting plate 1.2-1 in the upper coupling piece 1, meanwhile, a posture of a quick male joint component 2.2 is adjusted by an adjusting spring 2.2-4, two limiting blocks 1.1-11 in the upper coupling piece 1 and two lower limiting blocks 2-4 in the lower coupling piece 2 limit together until the upper coupling piece 1 moves in place relative to the lower coupling piece 2, and at the moment, the quick female joint component 1.2 and the quick male joint component 2.2 are coupled to realize hydraulic connection; and finally, controlling the telescopic oil cylinder assemblies 1-7 in the upper coupling piece 1 to push the taper pin locking assembly 1.3, so that the two taper pin rods 1.3-1 are in taper fit with the two taper pin matching sleeves 2.1-5, and the mechanical connection of the full-automatic quick-change device and the operation machine tool is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. A full-automatic quick-change device of a hydraulic excavator is characterized by comprising an upper coupling piece and a lower coupling piece;
the upper coupling piece comprises a quick female joint assembly and a pin rod which can be driven by a telescopic oil cylinder to move; one end of the upper coupling piece is provided with a hook-shaped part, and the other end of the upper coupling piece is provided with a quick female joint component; the quick female joint assembly comprises a plurality of quick female joints arranged on a quick female joint mounting plate, and two guide holes/guide posts are arranged on the quick female joint mounting plate;
the lower coupling piece comprises a quick male joint component, a pin shaft component and a taper pin matching sleeve matched with the pin rod; one end of the lower coupling piece is provided with a pin shaft assembly, and the other end of the lower coupling piece is provided with a quick male connector assembly; the quick male joint component comprises a quick male joint which is arranged on a quick male joint mounting plate and can be correspondingly connected with the quick female joint, and the quick male joint mounting plate is provided with guide posts/guide holes matched with the corresponding guide holes/guide posts;
the upper coupling piece can be hooked on the pin shaft assembly at one end of the lower coupling piece through the hook-shaped part at one end of the upper coupling piece and rotates around the central shaft of the pin shaft assembly, so that the quick female joint at the other end of the upper coupling piece is correspondingly communicated with the quick male joint at the other end of the lower coupling piece, and the pin rod is driven by the telescopic oil cylinder to extend into the taper pin matching sleeve to realize the mechanical locking of the upper coupling piece and the lower coupling piece.
2. The apparatus as claimed in claim 1, wherein the quick male coupling member is disposed on the base of the lower coupling member by an adjustment spring.
3. The automatic quick-change device for the hydraulic excavator according to claim 1, wherein the upper coupling member and/or the lower coupling member is provided with a limiting block for limiting the limit coupling position of the relative movement of the upper coupling member and the lower coupling member.
4. The fully automatic quick-change device of the hydraulic excavator according to claim 1, wherein the telescopic cylinder is fixed on a base body of the upper coupling member, and a cylinder rod of the telescopic cylinder is hinged on a connecting frame; the pin rod is arranged on the connecting frame, and the guide sleeve arranged on the base body of the upper coupling piece supports and guides the movement of the pin rod.
5. The automatic quick-change device of a hydraulic excavator according to claim 1, wherein a spring is sleeved on the pin rod on the side of the connecting frame facing the telescopic cylinder.
6. The fully automatic quick-change device of a hydraulic excavator according to claim 1, wherein the front end part of the pin rod facing the taper pin fitting sleeve is conical, circular truncated cone-shaped or wedge-shaped.
7. The automatic quick-change device of claim 6, wherein the taper pin fitting sleeve is fitted with the pin rod and can accommodate at least the front end of the pin rod.
8. The fully automatic quick-change device of a hydraulic excavator according to claim 1, wherein the telescopic oil cylinder is provided with a hydraulic lock.
9. The automatic quick-change device of a hydraulic excavator according to claim 1, wherein the upper coupling member is connected with a bucket rod and a connecting rod of the excavating arm through a first pin shaft arranged at the upper part.
10. The apparatus of claim 1, wherein the lower portion of the lower coupling member is connected to the work implement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330455.4U CN210946949U (en) | 2019-08-16 | 2019-08-16 | Full-automatic quick-change device of hydraulic excavator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330455.4U CN210946949U (en) | 2019-08-16 | 2019-08-16 | Full-automatic quick-change device of hydraulic excavator |
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| CN210946949U true CN210946949U (en) | 2020-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453742A (en) * | 2019-08-16 | 2019-11-15 | 徐工集团工程机械有限公司 | A kind of full-automatic fast replacing device of hydraulic crawler excavator |
| CN111945807A (en) * | 2020-08-25 | 2020-11-17 | 中国铁建重工集团股份有限公司 | Shoveling and milling machine for tunnel |
-
2019
- 2019-08-16 CN CN201921330455.4U patent/CN210946949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453742A (en) * | 2019-08-16 | 2019-11-15 | 徐工集团工程机械有限公司 | A kind of full-automatic fast replacing device of hydraulic crawler excavator |
| CN111945807A (en) * | 2020-08-25 | 2020-11-17 | 中国铁建重工集团股份有限公司 | Shoveling and milling machine for tunnel |
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Effective date of registration: 20220725 Address after: No.26 tuolanshan Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: JIANGSU XUGONG ENGINEERING MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 221004 26 Jinshan Road, Jinshan Bridge Economic Development Zone, Xuzhou, Jiangsu Patentee before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |