CN203684298U - Protective excavation arm of excavation type loader - Google Patents
Protective excavation arm of excavation type loader Download PDFInfo
- Publication number
- CN203684298U CN203684298U CN201420052620.5U CN201420052620U CN203684298U CN 203684298 U CN203684298 U CN 203684298U CN 201420052620 U CN201420052620 U CN 201420052620U CN 203684298 U CN203684298 U CN 203684298U
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- Prior art keywords
- arm
- forearm
- oil cylinder
- hinged
- large arm
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- 230000001681 protective effect Effects 0.000 title claims abstract description 11
- 238000009412 basement excavation Methods 0.000 title abstract 9
- 210000000245 forearm Anatomy 0.000 claims description 46
- 238000009434 installation Methods 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Abstract
The utility model discloses a protective excavation arm of an excavation type loader. The protective excavation arm of the excavation type loader comprises a rotary arm, a large arm, a small arm, a scraper bucket, a large arm oil cylinder, a small arm oil cylinder and a scraper bucket oil cylinder, wherein the rotary arm, the large arm, the small arm and the scraper bucket are sequentially hinged to one another end to end, the two ends of the large arm oil cylinder are connected with the rotary arm and the large arm respectively, the two ends of the small arm oil cylinder are connected with the large arm and the small arm respectively, and the two ends of the scraper bucket oil cylinder are connected with the small arm and the scraper bucket respectively. The rotary arm is hinged to an excavation type loading machine body; the large arm and the small arm are both in the shape of a hollow box, one end of the small arm oil cylinder is hinged to the inner side of the large arm, the other end of the small arm oil cylinder stretches out of the front end of the large arm to be hinged to the small arm, one end of the scraper bucket oil cylinder is hinged to the inner side of the small arm, the other end of the scraper bucket oil cylinder stretches out of the front end of the small arm to be hinged to the scraper bucket, the large arm oil cylinder is located under the large arm, one end of the large arm oil cylinder is hinged to the rotary arm, and the other end of the large arm oil cylinder is hinged to the outer side of the front portion of the large arm. Through the arrangement, all the parts on the excavation arm can be fully protected, and the protective excavation arm is higher in overall structural property and strength, convenient to use, safe and reliable and has wide market application prospects.
Description
Technical field
The utility model relates to a kind of loader parts, and engineering machinery field specifically, relates to a kind of protection type digging arm of backhoe loader.
Background technology
The working environment of backhoe loader is comparatively severe; be generally tunneling operation; the stone damage equipment parts that the stone of upspringing often can work because of equipment therebetween time or tunnel crag come off; for the excavating gear frequently that moves; the probability damaging is higher, particularly oil cylinder of small arm and bucket cylinder.Now general safeguard measure is to install protective cover 13 additional on two oil cylinder tops in the industry; as shown in Figure 1, and this safeguard measure oil cylinder is flexible while excavating, because stretching out of cylinder piston rod exposed; make protective cover cannot play the effect of protection piston rod, practicality is poor.Next is that rocking arm 11 and connecting rod 12 apparatus structures of digging arm are reasonable not; due to digging arm excavate explosion come off rock time; often can break because of tumbling of unconsolidated rock each oil filling hole of rocker-arm link; greatly shortened the application life of this member; and this member processing and manufacturing operation is loaded down with trivial details, assembling change trouble, when assembling in order to make rocking arm and connecting rod also have pass knothole three holes of cylinder piston rod concentric; need accurately to adjust contraposition, take great energy bothersome.
In sum, design a kind of can adequately protect its component especially oil cylinder, interface etc. not by falling rocks smash the digging arm that breaks for people required.
Utility model content
For above-mentioned the problems of the prior art, the component that the utility model provides a kind of digging arm that can adequately protect in the time of operation are not smashed and break and the protection type digging arm of the backhoe loader of practicality esy to use, safe and reliable by falling rocks.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of protection type digging arm of backhoe loader, comprise hinged pivoted arm, large arm, forearm, the scraper bowl of head and the tail successively, the big arm cylinder that two ends are connected with pivoted arm, large arm respectively, the oil cylinder of small arm that two ends are connected with large arm, forearm respectively, and the bucket cylinder that is connected with forearm, scraper bowl respectively of two ends, wherein, pivoted arm and backhoe loader main body are hinged; Described large arm and forearm are all hollow box shape; it is hinged with forearm that oil cylinder of small arm one end is articulated with large arm inner side, the other end stretches out large arm front end; bucket cylinder one end is articulated with that forearm front end is stretched out in forearm inner side, the other end and scraper bowl is hinged, and described big arm cylinder is positioned under large arm and one end and pivoted arm is hinged, the other end and hinged outside arm front portion greatly.
Specifically, described large arm comprise case shape body and on case shape body towards the extension of forearm direction, the cross section of this extension is " ∏ " shape; forearm is positioned at this extension bottom with the pin joint of large arm; the pin joint of oil cylinder of small arm and forearm is positioned at this extension, and its raising middle flask shape body is connected with pivoted arm.Oil cylinder of small arm pass case shape body front end and forearm hinged, and, in the time that oil cylinder of small arm control forearm rotates along the pin joint of large arm and forearm; the pin joint place of oil cylinder of small arm and forearm can not bump against the outside of case shape body and the inside upper part of extension; and in the time that forearm goes to extreme position downwards, the pin joint of oil cylinder of small arm and forearm can not exceed extension foremost.
Further, in order to increase processing and assembly process process, described large arm side opening is provided with pilot hole.
Further, in order to improve intensity, described extension external surface is provided with reinforcing rib.
Specifically, described forearm comprises the connecting portion that is positioned at hollow box shape bottom and the installation portion that is positioned at hollow box shape top, be arranged at the fixing stiffener between connecting portion and installation portion, and be opened in the groove of dodging of installation portion front end, wherein, should, the two ends of connecting portion are hinged with scraper bowl, large arm respectively, and one end of bucket cylinder is articulated with installation portion inner side, the other end and stretches out installation portion and be connected with scraper bowl dodging groove place.This place's difference with the prior art is mainly to have omitted the rocking arm shown in Fig. 1 and connecting rod in the situation that not affecting scraper bowl working condition, because the groundwork mode of the digging arm of backhoe loader is skimmed, thereby do not need too large digging force and larger bucket rotation angle, allow thus bucket cylinder directly act on scraper bowl, machining accuracy, assembling complexity are reduced, reduced manufacturing cost, assembly technology is simpler, more practical.
Further, described installation portion side also offers pilot hole.
Further; described bucket cylinder front portion is provided with to be fixed on cylinder piston rod front end and movable to be placed on the internal layer protective jacket on cylinder shell; with the exposed parts of this bucket cylinder that adequately protects; reduce because offering and dodged the exposure to oil cylinder after groove, and guaranteed to rotate flexibility because dodging the scraper bowl that offering of groove have.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model improves mainly for the weak problem of the digging arm protective capacities of existing backhoe loader; by changing arm changeable type structure and oil cylinder position; reach the object to the perfect protection of each oil cylinder; as adopting internal hidden type structure, big arm cylinder to adopt, oil cylinder of small arm and bucket cylinder hide formula structure; and arm type adopts box design; overall structure is stronger; intensity is higher; there is substantive distinguishing features and progress; and the utility model design is ingenious, easy to use, safe and reliable; there is market application foreground widely, be applicable to applying.
(2) the utility model has also been made improvement on scraper bowl connects, the experiential basis obtaining according to practice, utilize the working method that arm is mainly skimmed not need too large digging force and larger bucket rotation angle experience, original rocking arm and connecting rod are omitted, not only increase the direct effect power of oil cylinder, and reduced parts machining precision, reduced cost of manufacture, and reduce assembly technology difficulty.
(3) the utility model, by internal layer protection structure is set on bucket cylinder, is protected more fully oil cylinder exposed parts on the basis that guarantees the flexibility of scraper bowl connection of rotating.
Accompanying drawing explanation
Fig. 1 is the structural representation of digging arm in prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is sectional structure schematic diagram of the present utility model.
Fig. 4 is the partial enlarged drawing at A place in Fig. 3.
In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows:
1-pivoted arm, the large arm of 2-, 3-forearm, 4-scraper bowl, 5-big arm cylinder, 6-oil cylinder of small arm, 7-bucket cylinder, 8-pilot hole, 9-internal layer protective jacket, 10-boom cylinder, 11-rocking arm, 12-connecting rod, 13-protective cover;
21-case shape body, 22-extension, 23-reinforcing rib;
31-connecting portion, 32-installation portion, 33-dodges groove, and 34-fixes stiffener.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figures 2 to 4, the protection type digging arm of this backhoe loader, comprise hinged pivoted arm 1, large arm 2, forearm 3, the scraper bowl 4 of head and the tail successively, the big arm cylinder 5 that two ends are connected with pivoted arm, large arm respectively, the oil cylinder of small arm 6 that two ends are connected with large arm, forearm respectively, and the bucket cylinder 7 that is connected with forearm, scraper bowl respectively of two ends, wherein, pivoted arm and backhoe loader main body are hinged; Described large arm and forearm are all hollow box shape; it is hinged with forearm that oil cylinder of small arm one end is articulated with large arm inner side, the other end stretches out large arm front end; bucket cylinder one end is articulated with that forearm front end is stretched out in forearm inner side, the other end and scraper bowl is hinged, and described big arm cylinder is positioned under large arm and one end and pivoted arm is hinged, the other end and hinged outside arm front portion greatly.
Specifically, described large arm comprise case shape body 21 and on case shape body towards the extension 22 of forearm direction, the cross section of this extension is " ∏ " shape; forearm is positioned at this extension bottom with the pin joint of large arm; the pin joint of oil cylinder of small arm and forearm is positioned at this extension, and its raising middle flask shape body is connected with pivoted arm.Oil cylinder of small arm pass case shape body front end and forearm hinged, and, in the time that oil cylinder of small arm control forearm rotates along the pin joint of large arm and forearm; the pin joint place of oil cylinder of small arm and forearm can not bump against the outside of case shape body and the inside upper part of extension; and in the time that forearm goes to extreme position downwards, the pin joint of oil cylinder of small arm and forearm can not exceed extension foremost.
Further, in order to process and assembly process process, described large arm side opening is provided with pilot hole 8.In order to improve intensity, described extension external surface is provided with reinforcing rib 23.
Specifically, described forearm comprises the connecting portion 31 that is positioned at hollow box shape bottom and the installation portion 32 that is positioned at hollow box shape top, be arranged at the fixing stiffener 34 between connecting portion and installation portion, and be opened in installation portion front end dodge groove 33, wherein, should, the two ends of connecting portion are hinged with scraper bowl, large arm respectively, and one end of bucket cylinder is articulated with installation portion inner side, the other end and stretches out installation portion and be connected with scraper bowl dodging groove place.This place's difference with the prior art is mainly to have omitted the rocking arm shown in Fig. 1 and connecting rod in the situation that not affecting scraper bowl working condition, because the groundwork mode of the digging arm of backhoe loader is skimmed, thereby do not need too large digging force and larger bucket rotation angle, allow thus bucket cylinder directly act on scraper bowl, machining accuracy, assembling complexity are reduced, reduced manufacturing cost, assembly technology is simpler, more practical.
Further, in order to process and assembly process process, described installation portion side also offers pilot hole 8.
Further; described bucket cylinder front portion is provided with to be fixed on cylinder piston rod front end and movable to be placed on the internal layer protective jacket 9 on cylinder shell; with the exposed parts of this bucket cylinder that adequately protects; reduce because offering and dodged the exposure to oil cylinder after groove, and guaranteed to rotate flexibility because dodging the scraper bowl that offering of groove have.
Further, in order to strengthen welding procedure intensity, also offer welding process hole in the side of large arm, forearm and pivoted arm.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
According to above-described embodiment, just can realize well the utility model.What deserves to be explained is; under prerequisite based on said structure design; for solving same technical problem; even if some that make on the utility model are without substantial change or polishing; the essence of the technical scheme adopting is still consistent with the utility model, also should be in protection domain of the present utility model.
Claims (7)
1. the protection type digging arm of a backhoe loader, it is characterized in that, comprise hinged pivoted arm (1), large arm (2), forearm (3), the scraper bowl (4) of head and the tail successively, the big arm cylinder (5) that two ends are connected with pivoted arm, large arm respectively, the oil cylinder of small arm (6) that two ends are connected with large arm, forearm respectively, and the bucket cylinder (7) that is connected with forearm, scraper bowl respectively of two ends, wherein, pivoted arm and backhoe loader main body are hinged; Described large arm and forearm are all hollow box shape; it is hinged with forearm that oil cylinder of small arm one end is articulated with large arm inner side, the other end stretches out large arm front end; bucket cylinder one end is articulated with that forearm front end is stretched out in forearm inner side, the other end and scraper bowl is hinged, and described big arm cylinder is positioned under large arm and one end and pivoted arm is hinged, the other end and hinged outside arm front portion greatly.
2. the protection type digging arm of backhoe loader according to claim 1, it is characterized in that, described large arm comprise case shape body (21) and on case shape body towards the extension (22) of forearm direction, the cross section of this extension is " ∏ " shape; forearm is positioned at this extension bottom with the pin joint of large arm; the pin joint of oil cylinder of small arm and forearm is positioned at this extension, and its raising middle flask shape body is connected with pivoted arm.
3. the protection type digging arm of backhoe loader according to claim 2, is characterized in that, described large arm side opening is provided with pilot hole (8).
4. the protection type digging arm of backhoe loader according to claim 2, is characterized in that, described extension external surface is provided with reinforcing rib (23).
5. the protection type digging arm of backhoe loader according to claim 1, it is characterized in that, described forearm comprises the connecting portion (31) that is positioned at hollow box shape bottom and the installation portion (32) that is positioned at hollow box shape top, and be opened in installation portion front end dodge groove (33), wherein, the two ends of this connecting portion are hinged with scraper bowl, large arm respectively, and one end of bucket cylinder is articulated with installation portion inner side, the other end and stretches out installation portion and be connected with scraper bowl dodging groove place.
6. the protection type digging arm of backhoe loader according to claim 5, is characterized in that, described installation portion side also offers pilot hole (8).
7. according to the protection type digging arm of the backhoe loader described in claim 5 or 6, it is characterized in that, described bucket cylinder front portion is provided with to be fixed on cylinder piston rod front end and movable to be placed on the internal layer protective jacket (9) on cylinder shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052620.5U CN203684298U (en) | 2014-01-27 | 2014-01-27 | Protective excavation arm of excavation type loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052620.5U CN203684298U (en) | 2014-01-27 | 2014-01-27 | Protective excavation arm of excavation type loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684298U true CN203684298U (en) | 2014-07-02 |
Family
ID=51006221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052620.5U Expired - Fee Related CN203684298U (en) | 2014-01-27 | 2014-01-27 | Protective excavation arm of excavation type loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684298U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989619A (en) * | 2017-12-20 | 2018-05-04 | 佛山科学技术学院 | A kind of telescopic shoveling arm of tunnelling |
| CN108005137A (en) * | 2017-12-20 | 2018-05-08 | 佛山科学技术学院 | A kind of constructing tunnel digging arm |
| CN111877443A (en) * | 2020-03-11 | 2020-11-03 | 成都市猎石者破岩科技有限责任公司 | Rock breaking device |
| CN114541500A (en) * | 2022-04-06 | 2022-05-27 | 山东泰进机械装备有限公司 | Oil cylinder protection mechanism of excavator bucket |
| CN114809143A (en) * | 2022-05-25 | 2022-07-29 | 成工重工(遂宁)机械有限公司 | Double-crank arm loading bucket |
| CN116922453A (en) * | 2023-09-06 | 2023-10-24 | 苏州朗信智能科技有限公司 | Multifunctional robot and supporting leg oil cylinder follow-up protection device thereof |
| CN107989619B (en) * | 2017-12-20 | 2024-05-31 | 佛山科学技术学院 | Telescopic excavating arm for tunnel excavation |
-
2014
- 2014-01-27 CN CN201420052620.5U patent/CN203684298U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989619A (en) * | 2017-12-20 | 2018-05-04 | 佛山科学技术学院 | A kind of telescopic shoveling arm of tunnelling |
| CN108005137A (en) * | 2017-12-20 | 2018-05-08 | 佛山科学技术学院 | A kind of constructing tunnel digging arm |
| CN107989619B (en) * | 2017-12-20 | 2024-05-31 | 佛山科学技术学院 | Telescopic excavating arm for tunnel excavation |
| CN111877443A (en) * | 2020-03-11 | 2020-11-03 | 成都市猎石者破岩科技有限责任公司 | Rock breaking device |
| CN111877443B (en) * | 2020-03-11 | 2024-03-26 | 四川猎石者龙宇科技有限公司 | Rock breaking device |
| CN114541500A (en) * | 2022-04-06 | 2022-05-27 | 山东泰进机械装备有限公司 | Oil cylinder protection mechanism of excavator bucket |
| CN114541500B (en) * | 2022-04-06 | 2023-01-31 | 山东泰进机械装备有限公司 | Oil cylinder protection mechanism of excavator bucket |
| CN114809143A (en) * | 2022-05-25 | 2022-07-29 | 成工重工(遂宁)机械有限公司 | Double-crank arm loading bucket |
| CN116922453A (en) * | 2023-09-06 | 2023-10-24 | 苏州朗信智能科技有限公司 | Multifunctional robot and supporting leg oil cylinder follow-up protection device thereof |
| CN116922453B (en) * | 2023-09-06 | 2024-01-23 | 苏州朗信智能科技有限公司 | Multifunctional robot and supporting leg oil cylinder follow-up protection device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |