CN215669748U - Quick change device and operation machinery - Google Patents

Quick change device and operation machinery Download PDF

Info

Publication number
CN215669748U
CN215669748U CN202121057823.XU CN202121057823U CN215669748U CN 215669748 U CN215669748 U CN 215669748U CN 202121057823 U CN202121057823 U CN 202121057823U CN 215669748 U CN215669748 U CN 215669748U
Authority
CN
China
Prior art keywords
quick
lower beam
plate
lug
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121057823.XU
Other languages
Chinese (zh)
Inventor
蒋慧慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Sany Heavy Machinery Co Ltd
Original Assignee
Shanghai Sany Heavy Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Sany Heavy Machinery Co Ltd filed Critical Shanghai Sany Heavy Machinery Co Ltd
Priority to CN202121057823.XU priority Critical patent/CN215669748U/en
Application granted granted Critical
Publication of CN215669748U publication Critical patent/CN215669748U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The embodiment of the utility model provides a quick-change device and an operation machine. Wherein, quick change device includes: the quick-change hydraulic cylinder comprises a web plate, an upper beam, a lower beam assembly, a movable arm connecting piece, a connecting rod connecting piece and a quick-change oil cylinder. The upper beam and the lower beam component are connected to the web at intervals, the upper beam can be connected with an accessory of the operation machine, the quick-change oil cylinder is installed in the lower beam component, the movable arm connecting piece is connected to the web to be connected with a movable arm of the operation machine, and the connecting rod connecting piece is connected to the web to be connected with a connecting rod of the operation machine. Through the structure, the upper beam, the lower beam assembly, the movable arm connecting piece and the connecting rod connecting piece are connected to the web plate. With not having the monoblock web to support, only compare each scattered widget structure of mutual welding respectively, this quick change device's structure and technology are all comparatively simple. Meanwhile, the strength of the quick-change device is improved.

Description

Quick change device and operation machinery
Technical Field
The utility model relates to the technical field of quick change devices, in particular to a quick change device and an operation machine.
Background
The quick-change device of the loader is a key part of the multifunctional loader, and can enable the loader to quickly change various accessories such as a bucket, a grab bucket, a side-dumping bucket and the like so as to realize multiple operation functions of material shoveling, wood grabbing, forage clamping and the like, fully play the differentiation performance of different operation working conditions of the loader, save space and resources, reduce the time for hoisting and disassembling and improve the working efficiency.
However, the quick-change device in the prior art has the defect of complex structure and process. Meanwhile, the existing quick-change device has poor strength, and the phenomena of cracking, deformation and the like of each part of the quick-change device are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a quick-change device and an operation machine, which are used for solving the problems of complex structure and process and poor strength of the quick-change device in the prior art, so that the effects of simplifying the structure of the quick-change device, reducing the process complexity and improving the strength of the quick-change device are achieved.
According to a first aspect of the present invention, there is provided a quick-change device, comprising: the quick-change hydraulic cylinder comprises a web plate, an upper beam, a lower beam assembly, a movable arm connecting piece, a connecting rod connecting piece and a quick-change oil cylinder.
The upper beam and the lower beam component are connected to the web at intervals, the upper beam can be connected with an accessory of the operation machine, the quick-change oil cylinder is installed in the lower beam component, the movable arm connecting piece is connected to the web to be connected with a movable arm of the operation machine, and the connecting rod connecting piece is connected to the web to be connected with a connecting rod of the operation machine.
According to the quick-change device provided by the utility model, the quick-change device further comprises a reinforcing lug plate, the reinforcing lug plate is arranged on the web plate and is connected between the upper beam and the lower beam assembly, the reinforcing lug plate and the lower beam assembly can form a containing cavity, and the quick-change oil cylinder is installed in the containing cavity.
According to the quick-change device provided by the utility model, the reinforcing ear plate comprises a first reinforcing ear plate and a second reinforcing ear plate.
The first reinforcing lug plate is located at one end of the lower beam assembly, and the second reinforcing lug plate is located at the other end of the lower beam assembly.
According to the quick-change device provided by the utility model, the lower beam assembly comprises a first lower beam plate and a second lower beam plate.
The first lower beam plate and the second lower beam plate are arranged at intervals, and the first lower beam plate, the second lower beam plate, the first reinforcing lug plate and the second reinforcing lug plate jointly form the accommodating chamber.
According to the quick-change device provided by the utility model, at least one lightening hole is formed in the web.
According to the quick-change device provided by the utility model, the movable arm connecting piece comprises a first movable arm connecting lug and a second movable arm connecting lug.
The first movable arm connecting lug and the second movable arm connecting lug are connected to the web plate, the first movable arm connecting lug is connected to one end of the upper beam, and the second movable arm connecting lug is connected to the other end of the upper beam.
According to the quick-change device provided by the utility model, the connecting rod connecting piece comprises a first connecting rod connecting lug and a second connecting rod connecting lug.
The first connecting rod connection lug and the second connecting rod connection lug are connected to the web plate, and the first connecting rod connection lug and the second connecting rod connection lug are arranged between the upper beam and the first lower beam plate at intervals.
According to the quick-change device provided by the utility model, the quick-change oil cylinder comprises a double-piston-rod oil cylinder, and locking shafts are respectively installed at the outer end parts of two piston rods of the double-piston-rod oil cylinder.
According to the quick-change device provided by the utility model, the upper beam, the lower beam assembly, the movable arm connecting piece and the connecting rod connecting piece are all connected to the web plate in a welding manner.
According to a second aspect of the present invention, there is provided a working machine comprising: a movable arm, a connecting rod and the quick-change device.
The movable arm is connected with the movable arm connecting piece, and the connecting rod is connected with the connecting rod connecting piece.
In the quick-change device provided by the utility model, the upper beam and the lower beam assembly are connected to the web at intervals, the upper beam can be connected with an accessory of a working machine, the quick-change oil cylinder is installed in the lower beam assembly, the movable arm connecting piece is connected to the web to be connected with a movable arm of the working machine, and the connecting rod connecting piece is connected to the web to be connected with a connecting rod of the working machine.
Through the structure, the upper beam, the lower beam assembly, the movable arm connecting piece and the connecting rod connecting piece are connected to the web plate. With not having the monoblock web to support, only compare each scattered widget structure of mutual welding respectively, this quick change device's structure and technology are all comparatively simple. Meanwhile, the strength of the quick-change device is improved.
Further, in the work machine according to the present invention, since the work machine includes the quick change device as described above, the work machine also has the advantages as described above.
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 description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a quick-change device provided by the utility model;
reference numerals:
100: a web; 200: an upper beam; 300: quickly replacing the oil cylinder;
301: a locking shaft; 401: a first reinforcing ear plate; 402: a second reinforcing ear plate;
501: a first lower beam panel; 502: a second lower beam panel; 503: accommodation chamber
600: lightening holes; 701: a first boom engaging lug; 702: a second boom engaging lug;
801: the first connecting rod is connected with the lug; 802: the second connecting rod is connected with the lug;
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution, and advantages of the embodiments of the present invention more clear, and the technical solution 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 a part of embodiments of the present invention, but not all 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.
A quick change device and a working machine according to an embodiment of the present invention are described below with reference to fig. 1. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.
An embodiment of the first aspect of the present invention provides a quick-change device, as shown in fig. 1, including: web 100, upper beam 200, lower beam assembly, boom coupler, link coupler, and quick-change cylinder 300.
Wherein the upper beam 200 and the lower beam assembly are connected to the web 100 at intervals. The upper beam 200 can be connected to an attachment of the work machine. For example, the upper beam 200 may have a circular tube structure, and the attachment of the work machine may be provided with a hook adapted to the upper beam 200. The hook on the attachment of the work machine can be hung on the upper beam 200. And a quick-change oil cylinder 300 is arranged in the lower beam assembly. Boom attachments are attached to web 100 to connect with the boom of the work machine. The link connector is connected to web 100 for connection to a link of a work machine.
For example, the attachments of the work machine include a bucket, a grab, a sidecar, or the like, so that the work machine realizes the corresponding work function. The above embodiments are only illustrative embodiments of the present invention, and do not limit the present invention in any way.
With this arrangement, the upper beam 200, the lower beam assembly, the boom link, and the link are all connected to the web 100. Compared with a structure that the whole web plate 100 is not used for supporting and the scattered small parts are respectively welded, the structure and the process of the quick-change device are simple. Meanwhile, the strength of the quick-change device is improved.
It should be noted here that the present invention is not limited in any particular way as to the connection between the upper beam 200, the lower beam assembly, the boom link and the link and the web 100. For example, in one embodiment of the present invention, the upper beam 200, the lower beam assembly, the boom linkage, and the link linkage are all welded to the web 100.
The upper beam 200, the lower beam assembly, the boom connector, the link connector, and the web 100 can form an integrated structure. Through the structure, the stress distribution of the quick-change device can be more uniform, and the service life of the quick-change device is further prolonged.
The above embodiment is only an illustrative embodiment of the present invention, and does not limit the present invention in any way. That is, the connection between the upper beam 200, the lower beam assembly, the boom and link connectors and the web 100 includes, but is not limited to, a welded connection.
In one embodiment of the utility model, the quick-change device further comprises a reinforcing ear plate. The reinforcing ear plate is disposed on the web 100, and the reinforcing ear plate is connected between the upper beam 200 and the lower beam assembly. The reinforced ear plate and lower beam assembly can form a receiving cavity 503. The quick-change cylinder 300 is mounted in the accommodation chamber 503.
Specifically, for example, as shown in fig. 1, the quick-change device includes: the structure comprises a web plate 100, an upper beam 200, a lower beam assembly, a movable arm connector, a connecting rod connector, a quick-change oil cylinder 300 and a reinforcing lug plate.
Wherein, the upper beam 200 and the lower beam assembly are parallel to each other and connected to the web 100 at intervals. The upper beam 200 has connection regions for hanging accessories of the working machine formed at both ends thereof. The boom linkage is connected to the web 100. The boom attachment is connected to a boom of the work machine. The connecting rod connecting member is connected to the web 100. The connecting rod connecting piece is connected with a connecting rod of the operation machine.
Wherein the reinforcing ear plate is connected to the web 100 and the reinforcing ear plate is located between the upper beam 200 and the lower beam assembly. The reinforcing ear plate and the lower beam assembly together form an enclosed receiving chamber 503. A quick-change cylinder 300 is mounted in the receiving chamber 503. When in use, the accessory is firstly hung on the upper beam 200, and the piston rod of the quick-change oil cylinder 300 extends out to fixedly connect the accessory with the quick-change device.
According to the embodiments described above, the strength of the quick-change device can be enhanced and the service life of the quick-change device can be prolonged by providing the reinforcing ear plate on the quick-change device. Meanwhile, the reinforcing lug plate and the lower beam assembly jointly form a containing cavity 503, and the quick-change oil cylinder 300 is installed in the containing cavity 503, so that the quick-change oil cylinder 300 can be protected, and dust and the like are prevented from invading and damaging the quick-change oil cylinder 300.
Specifically, in one embodiment of the present invention, the reinforcing ear plate comprises a first reinforcing ear plate 401 and a second reinforcing ear plate 402.
Wherein the first reinforcing ear plate 401 is located at one end of the lower beam assembly. A second reinforcing ear plate 402 is located at the other end of the lower beam assembly. As shown in fig. 1, a first reinforcing ear plate 401 is located at the left end of the lower beam assembly and a second reinforcing ear plate 402 is located at the right end of the lower beam assembly.
Further, in one embodiment of the present invention, the lower beam assembly includes a first lower beam plate 501 and a second lower beam plate 502.
The first lower beam plate 501 and the second lower beam plate 502 are arranged at an interval. The first lower beam plate 501, the second lower beam plate 502, the first reinforcing ear plate 401, and the second reinforcing ear plate 402 together constitute a housing chamber 503. A quick-change cylinder 300 is mounted in the receiving chamber 503.
For example, the first lower beam plate 501 and the second lower beam plate 502 are square plate-shaped structures. Also, the first lower beam plate 501, the second lower beam plate 502, the first reinforcing ear plate 401, and the second reinforcing ear plate 402 are welded to each other to constitute an accommodation chamber 503.
In one embodiment of the present invention, boom linkage includes a first boom engaging lug 701 and a second boom engaging lug 702.
The first boom engaging lug 701 and the second boom engaging lug 702 are both connected to the web 100. The first boom engaging lug 701 is connected to one end of the upper beam 200. The second boom engaging lug 702 is connected to the other end of the upper beam 200.
In yet another embodiment of the present invention, the link connector includes a first link engaging ear 801 and a second link engaging ear 802.
Wherein, the first connecting rod lug 801 and the second connecting rod lug 802 are both connected to the web 100. The first link engaging lug 801 and the second link engaging lug 802 are disposed between the upper beam 200 and the first lower beam plate 501 with an interval therebetween.
Specifically, as shown in fig. 1, the quick-change apparatus includes a web 100, an upper beam 200, a lower beam assembly, a boom coupler, a link coupler, a quick-change cylinder 300, and a reinforcing lug.
Wherein the lower beam assembly comprises a first lower beam plate 501 and a second lower beam plate 502. The reinforcing ear plate includes a first reinforcing ear plate 401 and a second reinforcing ear plate 402. Boom attachment includes a first boom engaging lug 701 and a second boom engaging lug 702. The link connector includes a first link engaging ear 801 and a second link engaging ear 802.
As described in connection with fig. 1, the upper beam 200 is horizontally connected at a position above the web 100. The upper beam 200 has connection regions for hanging accessories of the working machine formed at both ends thereof. The first lower beam plate 501 and the second lower beam plate 502 are horizontally disposed at a lower position of the web 100 at an interval. A first reinforcing ear plate 401 and a second reinforcing ear plate 402 are each attached to the web 100. Also, a first reinforcing ear plate 401 is located at the left end of the lower beam assembly and a second reinforcing ear plate 402 is located at the right end of the lower beam assembly. The first and second reinforcing ear plates 401 and 402 and the first and second lower beam plates 501 and 502 together form a closed accommodation chamber 503. A quick-change cylinder 300 is mounted in the receiving chamber 503.
First boom engaging lug 701 and second boom engaging lug 702 are both connected to web 100. The first boom engaging lug 701 is connected to the left end of the upper beam 200. The second boom engaging lug 702 is connected to the right end of the upper beam 200. First boom engaging lug 701 and second boom engaging lug 702 may be fixedly coupled to a boom of the work machine.
The first link engaging lug 801 and the second link engaging lug 802 are both connected to the web 100. The first link engaging lug 801 and the second link engaging lug 802 are disposed between the upper beam 200 and the first lower beam plate 501 with an interval therebetween. The first link engaging lug 801 and the second link engaging lug 802 can be fixedly connected to a link of the work machine.
In one embodiment of the present invention, the web 100 is formed with at least one lightening hole 600.
As shown in fig. 1, two lightening holes 600 are formed in the web 100. The weight of the quick-change device can be greatly reduced by arranging the lightening holes 600 on the web plate 100. On the premise of ensuring the strength, the light weight of the quick-change device can be realized, and the material cost is saved.
The above embodiment is only an illustrative embodiment of the present invention, and does not limit the present invention in any way. That is, the number of the lightening holes 600 is not limited to two. The number of the lightening holes 600 can be adjusted according to the actual situation.
In one embodiment of the present invention, quick-change cylinder 300 comprises a dual-piston rod cylinder. The outer ends of two piston rods of the double-piston rod oil cylinder are respectively provided with a locking shaft 301.
As shown in fig. 1, the quick-change cylinder 300 includes a double-piston rod cylinder. The double-piston-rod oil cylinder comprises a cylinder body and two piston rods. The two piston rods extend in opposite directions from the interior of the cylinder to the exterior of the cylinder. The outer ends of both piston rods are mounted with locking shafts 301. The locking shaft 301 can be extended or contracted simultaneously under the driving action of the quick-change oil cylinder 300. When the accessory is required to be fixedly connected with the quick-change device, the locking shaft 301 extends out and is in locking connection with the accessory. When the accessory needs to be separated from the quick-change device, the locking shaft 301 is contracted and separated from the accessory.
Embodiments of the second aspect of the present disclosure also provide a work machine including a boom, a link, and a quick-change device as described above.
Wherein, the movable arm is connected with the movable arm connecting piece. The connecting rod is connected with the connecting rod connecting piece.
For example, in one embodiment of the present invention, the work machine is a loader. It should be understood that the embodiment is only an illustrative embodiment of the present invention and does not constitute any limitation to the present invention. That is, the above-described work machine includes, but is not limited to, a loader.
Further, since the working machine includes the quick-change device as described above, it also has the advantages as described above.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A quick-change device, comprising: a web plate, an upper beam, a lower beam component, a movable arm connecting piece, a connecting rod connecting piece and a quick-change oil cylinder,
the upper beam and the lower beam component are connected to the web at intervals, the upper beam can be connected with an accessory of the operation machine, the quick-change oil cylinder is installed in the lower beam component, the movable arm connecting piece is connected to the web to be connected with a movable arm of the operation machine, and the connecting rod connecting piece is connected to the web to be connected with a connecting rod of the operation machine.
2. The quick-change device according to claim 1, further comprising a reinforcing lug plate disposed on the web and connected between the upper beam and the lower beam assembly, the reinforcing lug plate and the lower beam assembly being capable of forming a receiving chamber in which the quick-change cylinder is mounted.
3. The quick-change device according to claim 2, characterized in that said reinforcing lugs comprise a first reinforcing lug and a second reinforcing lug,
the first reinforcing lug plate is located at one end of the lower beam assembly, and the second reinforcing lug plate is located at the other end of the lower beam assembly.
4. The quick-change device according to claim 3, characterized in that the lower beam assembly comprises a first lower beam plate and a second lower beam plate,
the first lower beam plate and the second lower beam plate are arranged at intervals, and the first lower beam plate, the second lower beam plate, the first reinforcing lug plate and the second reinforcing lug plate jointly form the accommodating chamber.
5. The quick-change device according to claim 1, characterized in that the web is formed with at least one lightening hole.
6. The quick-change device according to claim 1, characterized in that the boom coupler comprises a first boom engaging lug and a second boom engaging lug,
the first movable arm connecting lug and the second movable arm connecting lug are connected to the web plate, the first movable arm connecting lug is connected to one end of the upper beam, and the second movable arm connecting lug is connected to the other end of the upper beam.
7. The quick-change device according to claim 4, characterized in that the link connector comprises a first link engaging lug and a second link engaging lug,
the first connecting rod connection lug and the second connecting rod connection lug are connected to the web plate, and the first connecting rod connection lug and the second connecting rod connection lug are arranged between the upper beam and the first lower beam plate at intervals.
8. The quick-change device according to claim 1, characterized in that the quick-change cylinder comprises a double-piston-rod cylinder, and locking shafts are mounted at the outer ends of two piston rods of the double-piston-rod cylinder.
9. The quick-change device according to claim 1, wherein the upper beam, the lower beam assembly, the boom coupler and the link coupler are all welded to the web.
10. A working machine, characterized by comprising a boom, a link and a quick-change device according to any one of claims 1 to 9,
the movable arm is connected with the movable arm connecting piece, and the connecting rod is connected with the connecting rod connecting piece.
CN202121057823.XU 2021-05-17 2021-05-17 Quick change device and operation machinery Active CN215669748U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121057823.XU CN215669748U (en) 2021-05-17 2021-05-17 Quick change device and operation machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121057823.XU CN215669748U (en) 2021-05-17 2021-05-17 Quick change device and operation machinery

Publications (1)

Publication Number Publication Date
CN215669748U true CN215669748U (en) 2022-01-28

Family

ID=79972422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121057823.XU Active CN215669748U (en) 2021-05-17 2021-05-17 Quick change device and operation machinery

Country Status (1)

Country Link
CN (1) CN215669748U (en)

Similar Documents

Publication Publication Date Title
US8376063B2 (en) Structure for attaching rear work machine to tractor
CN103195116B (en) Slider assembly
CN102057109B (en) Cab for construction machine
CN215669748U (en) Quick change device and operation machinery
US4186812A (en) Equalizer bar support assembly
CN218201776U (en) Hoisting device suitable for diesel cylinder sand core
US9217237B2 (en) Side frame for construction machine
CN114250817B (en) Multifunctional crawler-type chassis and excavator
CN214607719U (en) Working machine frame and working machine
CN211523314U (en) Traction frame and land leveler
CN110173011B (en) Equal-strength face shovel movable arm of excavator and excavator using same
US6793452B2 (en) Truss style stick or boom
CN220364297U (en) Balancing weight support and crawler crane
CN110847266A (en) Traction frame and land leveler
CN218116614U (en) Excavator big arm
CN219313948U (en) Bucket material taking rake capable of being conveniently and quickly replaced and assembled
CN220644385U (en) Swing frame of backhoe loader
CN216446085U (en) Special link mechanism for taking out boxes of loader
CN215906877U (en) Swing arm, swing frame and land leveler
CN219547886U (en) Connecting rod mechanism of backhoe loader
CN214658691U (en) Fixed hanging arm type construction hanging basket
CN217398276U (en) Boom assembly and work machine
CN214530879U (en) Connecting rod structure of material grabbing machine
CN213445756U (en) Hoisting part for shot blasting equipment
CN209872270U (en) Basic arm and telescopic arm

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant