CN203684309U - Excavator large arm and small arm structures - Google Patents
Excavator large arm and small arm structures Download PDFInfo
- Publication number
- CN203684309U CN203684309U CN201320849867.5U CN201320849867U CN203684309U CN 203684309 U CN203684309 U CN 203684309U CN 201320849867 U CN201320849867 U CN 201320849867U CN 203684309 U CN203684309 U CN 203684309U
- Authority
- CN
- China
- Prior art keywords
- forearm
- arm
- large arm
- otic placode
- center
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model provides excavator large arm and small arm structures. One end of a large arm main body is provided with a large arm fork; a small arm is connected to the large arm fork of a large arm; the large arm and the small arm are in hollow structures; interiors of the hollow structures of the large arm and the small arm are filled with filler. The excavator large arm and small arm structures are characterized in that the hollow structures of the large arm and the small arm are not provided with filler inlets and filler outlets. According to the excavator large arm and small arm structures, maximization of the digging force output from a device is achieved mainly through a lever principle; digging force points of the large arm and the small arm are close to a center of the integral excavator and the integral excavator is balanced and stable when the output force of the integral excavator is maximum due to change of the size and structures of the excavator large arm and the small arm; the large arm safety during operation is guaranteed due to the fact that the filler inlets and outlets are not designed in the large arm; the large arm can be comprehensively used in various working environments due to the fact that the weight of filler of the large arm is designed according to the large arm weight which is required for digging the hardest rock in the traditional rock and soil.
Description
Technical field
The utility model relates to engineering machinery, particularly relates to a kind of big arm of digger and forearm structure.
Background technology
Excavator is a kind of machine of engineering machinery, for engineering field digging, the operations of loosening the soil such as building, water conservancy, electric power, road, mine, harbour and national defence, being widely used in harder lithosphere loosens the soil, because operating mode needs, the body of excavator is larger, and excavator comprises crawler-mounted excavator, wheel excavator etc., the working portion of excavator, mainly comprise ridge buster, forearm and large arm, excavator also comprises driver's cabin, body frame and crawler belt etc.One end of small arm of digger connects ridge buster, and large arm is also referred to as swing arm, and large arm connects forearm, is the important process position of excavator, and the structural strength at this position directly has influence on the service behaviour of excavator.
In actual applications, because forearm end is directly connected with workpiece ridge buster, ridge buster often runs into hard bulk sandstone in the process of shovel soil or shovel year sandstone, therefore the impact force that ridge buster is subject to is very large, if meet lithosphere in construction site, for lithosphere, operation there will be efficiency low to excavator, difficult excavation, dig the situations such as motionless, for this technical barrier, inventor carries out special technique improvement to big arm of digger and forearm, apply for Chinese patent: ZL201320390292.5, patent name: a kind of big arm of digger and forearm structure, adopting at large arm and forearm is hollow body structure, large arm and forearm arrange respectively the feed inlet and outlet with plug, inside arranges the filler of counterweight, thereby strengthen the large arm of excavator, forearm weight, utilize excavator soil, the operation of loosening the soil, strengthen the harder soil layer of the lithosphere digging operating efficiency of loosening the soil.
But in actual practice effect, although can be according to excavated soil difference, change mass, but the feed inlet and outlet with plug is in excavator work, along with the vibrations of the filler of counterweight, owing to adopting welding or other connected modes, the plug of feed inlet and outlet is connected on large arm, forearm, therefore in the time that excavator is worked, plug may come off because of vibrations, thereby affects the work of excavator.
Utility model content
For above-mentioned defect and the problem of prior art, the object of the utility model embodiment is to provide a kind of safe and can keep the maximized a kind of big arm of digger of excavator operating efficiency and forearm structure.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of big arm of digger and forearm structure, large arm main body one end is large arm fork; forearm is connected to the large arm fork place of large arm; described large arm and forearm are hollow body structure; large arm and forearm hollow body inside configuration are used filler to fill, and described large arm and forearm hollow body structure do not arrange the feed inlet and outlet of filler.
In technique scheme, the hollow body structure of described large arm is by two blocks of wallboards, upper plate, and lower plate is welded to form.
In technique scheme, described large arm arranges big arm cylinder axle sleeve, ridge buster oil cylinder tailstock otic placode.
Further technical scheme, the hollow body structure bottom welding base stiffener of described large arm.
In technique scheme, the hollow body structure of described forearm is by two blocks of wallboards, upper plate, and lower plate, rear plate is welded to form.
In technique scheme, described forearm arranges large forearm connecting bushing, horse traction head, connecting rod bearing, ridge buster oil cylinder tailstock otic placode, oil cylinder of small arm bar head otic placode, and oil cylinder of small arm bar head otic placode arranges otic placode connecting hole.
Further technical scheme, the keel plate that the setting of described hollow body inside configuration is connected with wallboard.
Further technical scheme, the length of described large arm is 6 meters to 4.2 meters.
Further technical scheme, the large forearm connecting bushing center of described forearm is greater than 0.8 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
Further technical scheme, the large forearm connecting bushing center of described forearm is 1-2 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
Preferred technical scheme, the large forearm connecting bushing center of described forearm is 1.25-1.5 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
Preferred technical scheme, described filler is that proportion is one of more than 4.6 center of gravity ore or the more than 5.9 iron sand of proportion or the two mixture or metallic ore (example: magnetic iron ore, plumbous zinc ore).
The digging force that the lever principle of mainly using the utility model realizes equipment output maximizes, by to big arm of digger, forearm size and structure change, make large arm, the excavation force of forearm from complete machine center more close to, reach complete machine makes assembled machine balance stable in power output maximum, on large arm, do not design input and output material hole, can guarantee the safety at work of large arm, design the weight of the filler of large arm with the needed large arm weight of the hardest rock of the conventional rock earth of excavated, thereby can make large arm can fully utilize in various working environments.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation that Fig. 1 the utility model big and small arms connects.
Wherein: large arm fork 11, forearm connecting hole 12, oil cylinder of small arm tailstock ear 13, connect 14 in one's ear, big arm cylinder connecting bushing 15, large arm base axle sleeve 16, stiffener 17, oil cylinder of small arm 42, ridge buster oil cylinder 41, ridge buster 3, large forearm connecting bushing 21, horse traction head 22, connecting rod bearing 23, ridge buster oil cylinder tailstock otic placode 24, oil cylinder of small arm bar head otic placode 25, otic placode connecting hole 26, wallboard 27, upper plate 28, lower plate 29, rear plate 30.
The specific embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment of the present utility model, shown in Fig. 1, a kind of big arm of digger and forearm structure, large arm is connected to large arm on excavator by big arm cylinder; forearm is connected with oil cylinder of small arm and ridge buster oil cylinder respectively; ridge buster oil cylinder is connected with ridge buster; large arm main body one end is large arm fork; forearm is connected to the forearm connection hole of the large arm fork of large arm; described large arm and forearm are hollow body structure; large arm and forearm hollow body inside configuration arrange filler and fill, and described large arm and forearm hollow body structure do not arrange the feed inlet and outlet of filler.
Shown in Fig. 1, the large arm entry center of large arm is 6 meters to 4.2 meters to large arm base centre distance length, preferred length is 4.77 meters, adopt according to actual needs the large arm lengths of different size, one end of large arm main body arranges big arm cylinder axle sleeve, in order to large arm is connected on excavator, large arm main body one end is large arm fork, large arm main body top arranges oil cylinder of small arm tailstock in one's ear, connecting hole is in one's ear set in one's ear, the hollow body structure of large arm is by two blocks of wallboards, upper plate, lower plate is welded to form, the 3-5 piece keel plate that the setting of hollow body inside configuration is connected with wallboard, to strengthen the intensity of hollow body structure, the position that large arm wallboard is close to large arm fork arranges big arm cylinder connecting bushing, big arm cylinder connecting bushing position is welded to connect stiffener, large arm hollow body structural base position is large arm base axle sleeve, large arm base axle sleeve position welding base stiffener.Connection reinforcement plate and base stiffener are for adding the integrally-built force intensity that is subject to of powerful arm base, make two blocks of wallboards of large arm, upper plate, lower plate and connection reinforcement plate and base stiffener select steel plate more than thickness of slab 30mm to do agent structure, increase the weight of large arm and be subject to force intensity, the hollow body inside of large arm arranges filler and fills, described filler is that proportion is one of more than 4.6 center of gravity ore or the more than 5.9 iron sand of proportion or the two mixture or metallic ore (example: magnetic iron ore, plumbous zinc ore), in order to increase large arm overall weight, when making, by the wallboard of large arm, lower plate and keel plate are welded into after open-ended cavity, the filler that mixed configuration is good adds cavity, and then upper plate is carried out to closure welding, form the hollow body structure of sealing.
Shown in Fig. 1, forearm arranges large forearm connecting bushing, horse traction head, connecting rod bearing, ridge buster oil cylinder tailstock otic placode, oil cylinder of small arm bar head otic placode, oil cylinder of small arm bar head otic placode arranges otic placode connecting hole, forearm is connected to the large arm fork place of large arm by large forearm connecting bushing, forearm main body top arranges ridge buster oil cylinder tailstock otic placode, the otic placode connecting hole of oil cylinder of small arm bar head otic placode connects oil cylinder of small arm bar head, oil cylinder of small arm connects large arm main body top oil cylinder of small arm tailstock in one's ear, the horse traction head of forearm and connecting rod bearing are connected with ridge buster and ridge buster, the hollow body structure of forearm is by two blocks of wallboards, upper plate, lower plate, rear plate is welded to form, the 3-5 piece keel plate that the setting of described hollow body inside configuration is connected with wallboard, two blocks of wallboards of forearm, upper plate, lower plate, rear plate and keel plate select steel plate more than thickness of slab 30mm to do agent structure, increase the weight of large arm and be subject to force intensity, the hollow body inside of forearm arranges filler and fills, described filler is that proportion is that one of more than 4.6 center of gravity ore or the more than 5.9 iron sand of proportion or the mixture of the two or metallic ore are as magnetic iron ore, plumbous zinc ore, in order to increase large arm overall weight.When making, by the wallboard of forearm, lower plate, rear plate and keel plate are welded into after open-ended cavity, and the filler that mixed configuration is good adds cavity, and then upper plate is carried out to closure welding, forms the hollow body structure of sealing.
In embodiment, the large forearm connecting bushing center of forearm is 1.8 meters to the distance at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode, forearm horse traction head center is 1.4 meters to the distance at large forearm connecting bushing center, the distance at the large forearm connecting bushing of the utility model center is greater than 0.8 to distance and the forearm horse traction head center at otic placode connecting hole center at the bottom of oil cylinder of small arm bar head to the ratio of distances constant at large forearm connecting bushing center, further technical scheme, the large forearm connecting bushing center of forearm is 1-2 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center, preferred technical scheme, the large forearm connecting bushing center of forearm is 1.25-1.5 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.The Proportionality design that is 1-2 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center according to the large forearm connecting bushing center of lever principle forearm, forearm force position and stress point more effectively act on by excavating rock earth the power of excavator output.
The utility model is according to Newton's third law, active force and reaction force between two objects, always equal and opposite in direction, opposite direction, act on same straight line, therefore add arm own wt and complete machine weight greatly, realize excavator and reach at work stable.Described large arm does not arrange the feed inlet and outlet of filler, avoids the in use filler leakage of large arm, causes danger.
In the hollow body inner space of large arm, the filler of stable weight is set, in excavator transport process, no matter by the hardness of excavating rock earth, must destroy the rock earth being excavated all can be disposable effectively.
The excavator that the utility model is used in any rank uses.
The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (10)
1. a big arm of digger and forearm structure, large arm main body one end is large arm fork; forearm is connected to the large arm fork place of large arm; described large arm and forearm are hollow body structure; large arm and forearm hollow body inside configuration are used filler to fill, and it is characterized in that: described large arm and forearm hollow body structure do not arrange the feed inlet and outlet of filler.
2. a kind of big arm of digger according to claim 1 and forearm structure, is characterized in that: the hollow body structure of described large arm is by two blocks of wallboards, upper plate, and lower plate is welded to form.
3. a kind of big arm of digger according to claim 1 and 2 and forearm structure, is characterized in that: described large arm arranges big arm cylinder axle sleeve, ridge buster oil cylinder tailstock otic placode.
4. a kind of big arm of digger according to claim 1 and 2 and forearm structure, is characterized in that: the hollow body structure bottom welding base stiffener of described large arm.
5. a kind of big arm of digger according to claim 1 and 2 and forearm structure, is characterized in that: the hollow body structure of described forearm is by two blocks of wallboards, upper plate, and lower plate, rear plate is welded to form.
6. a kind of big arm of digger according to claim 2 and forearm structure, is characterized in that: the keel plate that the setting of described hollow body inside configuration is connected with wallboard.
7. a kind of big arm of digger according to claim 1 and 2 and forearm structure, it is characterized in that: described forearm arranges large forearm connecting bushing, horse traction head, connecting rod bearing, ridge buster oil cylinder tailstock otic placode, oil cylinder of small arm bar head otic placode, and oil cylinder of small arm bar head otic placode arranges otic placode connecting hole.
8. a kind of big arm of digger according to claim 7 and forearm structure, is characterized in that: the large forearm connecting bushing center of described forearm is greater than 0.8 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
9. a kind of big arm of digger according to claim 8 and forearm structure, is characterized in that: the large forearm connecting bushing center of described forearm is 1-2 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
10. a kind of big arm of digger according to claim 9 and forearm structure, is characterized in that: the large forearm connecting bushing center of described forearm is 1.25-1.5 to distance and the forearm horse traction head center at the otic placode connecting hole center of oil cylinder of small arm bar head otic placode to the ratio of distances constant at large forearm connecting bushing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849867.5U CN203684309U (en) | 2013-12-20 | 2013-12-20 | Excavator large arm and small arm structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849867.5U CN203684309U (en) | 2013-12-20 | 2013-12-20 | Excavator large arm and small arm structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684309U true CN203684309U (en) | 2014-07-02 |
Family
ID=51006232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849867.5U Withdrawn - After Issue CN203684309U (en) | 2013-12-20 | 2013-12-20 | Excavator large arm and small arm structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684309U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669452A (en) * | 2013-12-20 | 2014-03-26 | 成都凯隆机械维修有限公司 | Excavator big arm and small arm structure |
| CN107842048A (en) * | 2017-11-29 | 2018-03-27 | 成都凯隆机械维修有限公司 | It is easy to the digging hook rock arm forearm increased |
| CN107882082A (en) * | 2017-11-17 | 2018-04-06 | 成都凯隆机械维修有限公司 | Durable type digs hook rock arm |
| WO2018228007A1 (en) * | 2017-06-12 | 2018-12-20 | 胡玲 | Novel integrated small arm rock breaking tool |
| CN109914508A (en) * | 2019-03-29 | 2019-06-21 | 三一重机有限公司 | A kind of excavator boom and excavator |
-
2013
- 2013-12-20 CN CN201320849867.5U patent/CN203684309U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669452A (en) * | 2013-12-20 | 2014-03-26 | 成都凯隆机械维修有限公司 | Excavator big arm and small arm structure |
| WO2018228007A1 (en) * | 2017-06-12 | 2018-12-20 | 胡玲 | Novel integrated small arm rock breaking tool |
| CN107882082A (en) * | 2017-11-17 | 2018-04-06 | 成都凯隆机械维修有限公司 | Durable type digs hook rock arm |
| CN107882082B (en) * | 2017-11-17 | 2022-04-05 | 成都凯隆机械维修有限公司 | Durable rock arm for digging hook |
| CN107842048A (en) * | 2017-11-29 | 2018-03-27 | 成都凯隆机械维修有限公司 | It is easy to the digging hook rock arm forearm increased |
| CN107842048B (en) * | 2017-11-29 | 2023-11-07 | 成都凯隆机械维修有限公司 | Hook digging rock arm forearm convenient to grow |
| CN109914508A (en) * | 2019-03-29 | 2019-06-21 | 三一重机有限公司 | A kind of excavator boom and excavator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203684309U (en) | Excavator large arm and small arm structures | |
| CN103669452B (en) | Excavator big arm and small arm structure | |
| CN204570778U (en) | Excavator rock arm turquoise device | |
| CN203296090U (en) | Large arm and small arm structure of excavator | |
| CN103899318B (en) | The milling of medium ground tunnel is dug and supporting machinery construction | |
| CN205530409U (en) | Novel powerful excavator with excavating hook | |
| CN104314071A (en) | Construction method of underground diaphragm wall by employing rotary drilling rig | |
| CN102561433A (en) | Drilling, crushing, digging and loading integrated machine for all-hydraulic tunneling | |
| CN203684308U (en) | Soil loosening device for increasing strength of excavator | |
| CN203668985U (en) | Small arm structure for excavator | |
| CN105862862A (en) | Salvage method for large-diameter pile buried hammer | |
| CN204715434U (en) | A kind of excavator | |
| CN207974184U (en) | A kind of wear-resisting mining bucket | |
| CN102785760B (en) | A kind of flush type steel concrete separated anchor | |
| CN106149686A (en) | Underground makes wall telephone continuously | |
| CN204877483U (en) | Bucket that excavator was used | |
| CN203594060U (en) | Excavator used safely | |
| CN202131626U (en) | Earth cracking device for excavator | |
| CN201982104U (en) | Excavation bucket of excavation bucket loader for tunnel driving | |
| Shukurov et al. | To the question of increasing efficiency of developing soils of higher strength | |
| CN202706088U (en) | Multifunctional engineering operation machine | |
| CN204282433U (en) | A kind of excavator multi-angle cuts down bar | |
| CN207176789U (en) | Head is dug in blade type milling | |
| CN202284448U (en) | Hole drilling and guiding drill tool for miscellaneous fill layer | |
| CN205063977U (en) | Excavator platform with tunnel is strutted and is used stock car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20150715 |
|
| RGAV | Abandon patent right to avoid regrant |