CN214657317U - Anti-fracture lengthened movable arm for excavator - Google Patents
Anti-fracture lengthened movable arm for excavator Download PDFInfo
- Publication number
- CN214657317U CN214657317U CN202023241831.8U CN202023241831U CN214657317U CN 214657317 U CN214657317 U CN 214657317U CN 202023241831 U CN202023241831 U CN 202023241831U CN 214657317 U CN214657317 U CN 214657317U
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- China
- Prior art keywords
- reinforcing plate
- arm body
- main
- swing arm
- sleeve
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- 230000002968 anti-fracture Effects 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 72
- 210000000245 forearm Anatomy 0.000 claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model discloses an anti-fracture extension swing arm for excavator, including swing arm body, forearm body, main hydraulic stem and connecting rod, the fixed initiative arm hinge interface that sets up in top surface middle part of swing arm body, and the fixed vice swing arm hinge interface that is provided with in bottom surface middle part of swing arm body to the fixed vice articulated mouth that is provided with of forearm body in top, the bottom of main telescopic link is run through and is set up inside the top of main hydraulic stem, and the bottom of main hydraulic stem articulates and set up in initiative arm hinge interface, the inside of forearm main hinge interface articulates and sets up in the bottom of vice hydraulic stem, and the top of vice hydraulic stem is run through and is provided with vice flexible. According to the anti-fracture lengthened movable arm for the excavator, the lengthened movable arm is prevented from being fractured through the connection of the reinforcing plates fixedly arranged at the corresponding positions inside the movable arm, and the condition that a hydraulic rod is blocked to cause abrasion due to external pollution in the operation process of the movable arm is prevented through the sliding arrangement of the sleeve.
Description
Technical Field
The utility model relates to an excavator swing arm technical field specifically is an excavator is with preventing fracture extension swing arm.
Background
The boom of the excavator is a work tool used for leveling and digging a bottom surface in a construction work, the boom hinged to the front of the excavator controls actions of an excavator bucket such as digging and loading, and the boom needs to withstand a large weight and hardness while working to prevent the boom from being broken during the operation.
However, in the use process of the boom of the existing excavator, since the boom mainly bears the excavation strength and supports the weight of the arm, once the weight of the boom exceeds the weight range that the boom can bear, the boom may be bent or even broken, and particularly, the boom produced according to a specific requirement is more easily broken because the length of the boom is increased, so that the original balance of the boom is lost, and the actual use efficiency of the boom is reduced, thereby causing unnecessary loss.
Therefore, we propose an anti-fracture lengthened boom for an excavator so as to solve the problems proposed in the above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an excavator is with preventing fracture extension swing arm, current excavator swing arm is in the use on solving the existing market that above-mentioned background art provided, because the swing arm mainly bears the excavation intensity, support the weight of dipper, in case surpass the weight scope that the swing arm can bear, will make the big arm take place to buckle or even the cracked condition, especially the big arm to the production of specific demand, because the length of lengthened the swing arm, lead to the original balance that the swing arm loses, the cracked condition takes place more easily, reduce the actual use efficiency of swing arm, cause the problem of unnecessary loss.
In order to achieve the above object, the utility model provides a following technical scheme: an anti-fracture lengthened movable arm for an excavator comprises a movable arm body, a forearm body, a main hydraulic rod and a connecting rod, wherein a driving arm hinge interface is fixedly arranged in the middle of the top surface of the movable arm body, an auxiliary movable arm hinge interface is fixedly arranged in the middle of the bottom surface of the movable arm body, a base hinge interface is fixedly arranged at the right end of the movable arm body, a forearm connecting port is fixedly arranged at the left end of the movable arm body, the top surfaces of the left and right sides of the interior of the movable arm body are fixedly connected to the top end of a first reinforcing plate and the top end of a second reinforcing plate respectively, the bottom end of the first reinforcing plate and the bottom end of the second reinforcing plate are fixedly connected to the bottom surfaces of the left and right sides of the interior of the movable arm body, the top surfaces of the left and right sides of the interior of the movable arm body are fixedly connected to the top end of a third reinforcing plate and the top end of a fourth reinforcing plate respectively, and the bottom ends of the third reinforcing plate and the fourth reinforcing plate are fixedly connected to the bottom surfaces of the left and right sides of the interior of the movable arm body, the small arm connecting port is hinged on the right side of the top surface of the small arm body, and a small arm main hinge port is fixedly arranged in the middle of the left side of the small arm body, the top end of the small arm body is fixedly provided with a small arm auxiliary hinge joint, the inside of the small arm auxiliary hinge joint is hinged and arranged at the top end of the main telescopic rod, the bottom end of the main telescopic rod is arranged inside the top end of the main hydraulic rod in a penetrating way, the bottom end of the main hydraulic rod is hinged and arranged on the hinge joint of the main driving arm, and the outer wall of the main hydraulic rod is provided with a first sleeve in a sliding way, and the inside of the top end of the first sleeve is arranged at the bottom end of a second sleeve in a penetrating way, the inner part of the small arm main hinge joint is hinged at the bottom end of the auxiliary hydraulic rod, the top end of the auxiliary hydraulic rod is provided with an auxiliary telescopic rod in a penetrating way, and the outer wall of the auxiliary hydraulic rod is provided with a third sleeve in a sliding manner, and the top end of the auxiliary telescopic rod is hinged to the outer wall of the forearm body through a connecting rod which is hinged to the top end of the auxiliary telescopic rod.
Preferably, the movable arm body is a v-shaped mechanism, the length of the left end of the movable arm body is greater than the length of the right end of the movable arm body, and the maximum turning length of the movable arm body is less than the maximum extension length of a hydraulic rod hinged to a secondary movable arm hinge joint on the bottom surface of the movable arm body.
Preferably, the first reinforcing plate and the second reinforcing plate are arranged in a manner that the lengths are equal and the inclination angles are the same, and the first reinforcing plate and the second reinforcing plate are arranged in an inverted J-shaped structure.
Preferably, the third reinforcing plate and the fourth reinforcing plate are arranged in an inverted C-shaped structure, and the third reinforcing plate, the fourth reinforcing plate and the first reinforcing plate are transversely and coaxially distributed.
Preferably, the maximum turning length of the forearm body is smaller than the sum of the length of the main telescopic rod and the length of the main hydraulic rod, the main telescopic rod and the main hydraulic rod are transversely and coaxially distributed, and the inner wall of the main hydraulic rod and the main telescopic rod are mutually attached in a sliding mode.
Preferably, the diameter of the first sleeve is larger than that of the second sleeve, the diameter of the first sleeve and the diameter of the second sleeve are both larger than that of the main hydraulic rod, and the first sleeve and the second sleeve are arranged in a transverse coaxial distribution manner.
Compared with the prior art, the beneficial effects of the utility model are that: according to the anti-fracture lengthened movable arm for the excavator, the lengthened movable arm is prevented from being fractured through the connection of the reinforcing plates fixedly arranged at the corresponding positions in the movable arm, and the condition that a hydraulic rod is blocked by external pollution in the operation process of the movable arm to cause abrasion is prevented through the sliding arrangement of the sleeve;
1. after the stress of the left forearm body of the movable arm body and the stress of the base hinge joint are uniformly dispersed through the first reinforcing plate and the second reinforcing plate which are arranged in the J-shaped structures at the left side and the right side in the movable arm body, the stress at the turning part of the movable arm body is dispersed through the third reinforcing plate and the fourth reinforcing plate, so that the condition that the movable arm body is broken is prevented;
2. through main telescopic link and the main hydraulic stem of swing arm body and forearm body articulated department for the forearm body can overturn, protects main telescopic link and main hydraulic stem through the first sleeve and the second sleeve that main telescopic link and main hydraulic stem inferior department slided and set up, causes wearing and tearing through outside sand and dust when preventing main telescopic link and main hydraulic stem function.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the first reinforcing plate of the present invention;
FIG. 3 is a schematic cross-sectional view of the first sleeve of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the active arm hinge joint of the present invention.
In the figure: 1. a boom body; 2. a driving arm hinge interface; 3. an auxiliary movable arm hinge interface; 4. a base hinge interface; 5. a small arm connecting port; 6. a first reinforcing plate; 7. a second reinforcing plate; 8. a third reinforcing plate; 9. a fourth reinforcing plate; 10. a forearm body; 11. a forearm main hinge interface; 12. a small arm auxiliary hinge interface; 13. a main telescopic rod; 14. the main hydraulic rod; 15. a first sleeve; 16. a second sleeve; 17. a secondary hydraulic stem; 18. an auxiliary telescopic rod; 19. a third sleeve; 20. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an anti-fracture lengthened movable arm for excavator, including movable arm body 1, forearm body 10, main hydraulic stem 14 and connecting rod 20, the fixed initiative arm hinge interface 2 that sets up in top surface middle part of movable arm body 1, and the fixed vice movable arm hinge interface 3 that is provided with in bottom surface middle part of movable arm body 1, and the fixed base hinge interface 4 that is provided with of right-hand member of movable arm body 1, and the fixed forearm connector 5 that is provided with in left end of movable arm body 1, the inside left and right sides top surface of movable arm body 1 is fixed connection respectively in the top of first reinforcing plate 6 and the top of second reinforcing plate 7, and the bottom of first reinforcing plate 6 and the bottom of second reinforcing plate 7 all fixed connection in the inside left and right sides bottom surface of movable arm body 1, and the inside left and right sides top surface of movable arm body 1 respectively fixed connection in the top of third reinforcing plate 8 and the top of fourth reinforcing plate 9, and in the bottom of third reinforcing plate 8 and the bottom of fourth reinforcing plate 9 all fixed connection in movable arm body 1 inside left and left side of movable arm body 1 The lower surface of the right side, the forearm connecting port 5 is hinged on the right side of the top surface of the forearm body 10, the middle part of the left side of the forearm body 10 is fixedly provided with a main forearm hinge joint port 11, the top end of the forearm body 10 is fixedly provided with an auxiliary forearm hinge joint port 12, the inner part of the auxiliary forearm hinge joint port 12 is hinged on the top end of a main telescopic rod 13, the bottom end of the main telescopic rod 13 is penetrated and arranged in the top end of a main hydraulic rod 14, the bottom end of the main hydraulic rod 14 is hinged on a main arm hinge joint port 2, the outer wall of the main hydraulic rod 14 is provided with a first sleeve 15 in a sliding manner, the inner part of the top end of the first sleeve 15 is penetrated and arranged on the bottom end of a second sleeve 16, the inner part of the main forearm hinge joint port 11 is hinged on the bottom end of an auxiliary hydraulic rod 17, the top end of the auxiliary hydraulic rod 17 is penetrated and provided with an auxiliary telescopic rod 18, and the outer wall of the auxiliary hydraulic rod 17 is provided with a third sleeve 19 in a sliding manner, and the top end of the auxiliary telescopic rod 18 is hinged on the outer wall of the small arm body 10 through a connecting rod 20.
The movable arm body 1 is arranged in a V-shaped mechanism, the length of the left end of the movable arm body 1 is larger than that of the right end of the movable arm body 1, the maximum overturning length of the movable arm body 1 is smaller than the maximum extending length of a hydraulic rod hinged to the auxiliary movable arm hinge joint 3 on the bottom surface of the movable arm body 1, and the situation that the hydraulic rod is broken due to the fact that the overturning angle of the movable arm body 1 is too large is prevented.
Be that length equals between first reinforcing plate 6 and the second reinforcing plate 7, the setting that inclination is the same, and be the setting of "J" font structure of invering between first reinforcing plate 6 and the second reinforcing plate 7, disperse the atress of the inside left and right sides of swing arm body 1 through first reinforcing plate 6 and second reinforcing plate 7.
The third reinforcing plate 8 and the fourth reinforcing plate 9 are arranged in an inverted C-shaped structure, and the third reinforcing plate 8, the fourth reinforcing plate 9 and the first reinforcing plate 6 are transversely and coaxially distributed, so that the stress at the turning part of the movable arm body 1 can be dispersed by the third reinforcing plate 8 and the fourth reinforcing plate 9.
The maximum overturning length of the small arm body 10 is smaller than the sum of the length of the main telescopic rod 13 and the length of the main hydraulic rod 14, the main telescopic rod 13 and the main hydraulic rod 14 are transversely and coaxially distributed, the inner wall of the main hydraulic rod 14 and the main telescopic rod 13 are mutually attached in a sliding mode, and the main telescopic rod 13 and the main hydraulic rod 14 are prevented from being separated due to the fact that the small arm body 10 is overturned excessively.
The diameter of the first sleeve 15 is greater than that of the second sleeve 16, the diameter of the first sleeve 15 and the diameter of the second sleeve 16 are both greater than that of the main hydraulic rod 14, the first sleeve 15 and the second sleeve 16 are transversely and coaxially distributed, and the main telescopic rod 13 is protected by the first sleeve 15 and the second sleeve 16.
The working principle is as follows: before the anti-fracture lengthened movable arm for the excavator is used, the overall condition of the device needs to be checked firstly, and normal work can be determined; as shown in fig. 1-4, when a movable arm body 1 with different lengths is required to be installed, as shown in fig. 1-2, in the process of producing the movable arm body 1, due to different customized requirements, the overall length of the movable arm is also long or short, which causes the lengthened movable arm to destroy the original balance, so that the bent part of the lengthened movable arm is easy to bend and break in the using process, the top surface and the bottom surface of the first reinforcing plate 6 and the top surface and the bottom surface of the second reinforcing plate 7 are mutually attached to the top surface and the bottom surface of the movable arm body 1 by fixedly arranging the first reinforcing plate 6 and the second reinforcing plate 7 at the left and right side edges inside the movable arm body 1, and the third reinforcing plate 8 and the fourth reinforcing plate 9 are fixedly arranged at the left and right sides of the bent part inside the movable arm body 1 to support the bent part of the movable arm body 1, preventing the boom body 1 from being broken during operation;
as shown in fig. 1 and 3, the main telescopic rod 13 is arranged inside the top end of the main hydraulic rod 14 in a penetrating manner through the hinge joint 2 of the main driving arm above the movable arm body 1 and the main hydraulic rod 14, so that the main telescopic rod 13 and the main hydraulic rod 14 controlled by an oil pipe between the movable arm body 1 and the small arm body 10 form mutual overturning operation, then the first sleeve 15 is arranged on the outer wall of the main hydraulic rod 14 in a sliding manner through a spring behind the first sleeve 15 on the outer wall of the main hydraulic rod 14, and the second sleeve 16 penetrates through the inside of the main hydraulic rod 14, so that the main hydraulic rod 14 can protect the outer wall of the main telescopic rod 13 according to different lengths of the main telescopic rod 13, and the situation that the main telescopic rod 13 is abraded due to adhesion is prevented.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides an anti-fracture extension swing arm for excavator, includes swing arm body (1), forearm body (10), main hydraulic stem (14) and connecting rod (20), its characterized in that: the swing arm comprises a swing arm body (1), a base hinge connector (4) and a small arm connector (5), wherein the driving arm hinge connector (2) is fixedly arranged in the middle of the top surface of the swing arm body (1), the auxiliary swing arm hinge connector (3) is fixedly arranged in the middle of the bottom surface of the swing arm body (1), the base hinge connector (4) is fixedly arranged at the right end of the swing arm body (1), the small arm connector (5) is fixedly arranged at the left end of the swing arm body (1), the top surfaces of the left side and the right side of the inside of the swing arm body (1) are fixedly connected to the top end of a first reinforcing plate (6) and the top end of a second reinforcing plate (7) respectively, the bottom end of the first reinforcing plate (6) and the bottom end of the second reinforcing plate (7) are fixedly connected to the bottom surface of the left side and the right side of the inside of the swing arm body (1), the top surfaces of the left side and the right side of the inside of the swing arm body (1) are fixedly connected to the top end of a third reinforcing plate (8) and the top end of a fourth reinforcing plate (9) respectively, and the bottom end of the third reinforcing plate (8) and the bottom end of the fourth reinforcing plate (9) are fixedly connected to the swing arm body (3) 1) The left and right sides of the inner part of the main hydraulic rod are respectively provided with a left arm connecting port (5) and a right arm connecting port (5), the left side of the forearm body (10) is hinged to the right side of the top surface, the middle part of the left side of the forearm body (10) is fixedly provided with a main forearm hinge joint port (11), the top end of the forearm body (10) is fixedly provided with a subsidiary forearm hinge joint port (12), the inner part of the subsidiary forearm hinge joint port (12) is hinged to the top end of a main telescopic rod (13), the bottom end of the main telescopic rod (13) is arranged inside the top end of a main hydraulic rod (14) in a penetrating manner, the bottom end of the main hydraulic rod (14) is hinged to a main driving arm hinge joint port (2), the outer wall of the main hydraulic rod (14) is provided with a first sleeve (15) in a sliding manner, the inner part of the top end of the first sleeve (15) is arranged at the bottom end of a second sleeve (16), the inner part of the main forearm hinge joint port (11) is hinged to the bottom end of a subsidiary hydraulic rod (17), and the top end of the auxiliary hydraulic rod (17) is provided with an auxiliary telescopic rod (18) in a penetrating way, the outer wall of the auxiliary hydraulic rod (17) is provided with a third sleeve (19) in a sliding way, and the top end of the auxiliary telescopic rod (18) is hinged on the outer wall of the forearm body (10) through a connecting rod (20) which is hinged.
2. The anti-fracture lengthened boom for the excavator according to claim 1, wherein: the movable arm body (1) is arranged in a V-shaped mechanism, the length of the left end of the movable arm body (1) is larger than that of the right end of the movable arm body (1), and the maximum overturning length of the movable arm body (1) is smaller than the maximum extension length of a hydraulic rod hinged to the auxiliary movable arm hinge joint (3) on the bottom surface of the movable arm body (1).
3. The anti-fracture lengthened boom for the excavator according to claim 1, wherein: the first reinforcing plate (6) and the second reinforcing plate (7) are arranged in a length-equal and inclination-angle-equal manner, and the first reinforcing plate (6) and the second reinforcing plate (7) are arranged in an inverted J-shaped structure.
4. The anti-fracture lengthened boom for the excavator according to claim 1, wherein: the third reinforcing plate (8) and the fourth reinforcing plate (9) are arranged in an inverted C-shaped structure, and the third reinforcing plate (8), the fourth reinforcing plate (9) and the first reinforcing plate (6) are transversely and coaxially distributed.
5. The anti-fracture lengthened boom for the excavator according to claim 1, wherein: the maximum overturning length of the small arm body (10) is smaller than the sum of the length of the main telescopic rod (13) and the length of the main hydraulic rod (14), the main telescopic rod (13) and the main hydraulic rod (14) are transversely and coaxially distributed, and the inner wall of the main hydraulic rod (14) and the main telescopic rod (13) are mutually attached in a sliding mode.
6. The anti-fracture lengthened boom for the excavator according to claim 1, wherein: the diameter of the first sleeve (15) is larger than that of the second sleeve (16), the diameter of the first sleeve (15) and the diameter of the second sleeve (16) are both larger than that of the main hydraulic rod (14), and the first sleeve (15) and the second sleeve (16) are transversely and coaxially distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023241831.8U CN214657317U (en) | 2020-12-29 | 2020-12-29 | Anti-fracture lengthened movable arm for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023241831.8U CN214657317U (en) | 2020-12-29 | 2020-12-29 | Anti-fracture lengthened movable arm for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214657317U true CN214657317U (en) | 2021-11-09 |
Family
ID=78504157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023241831.8U Expired - Fee Related CN214657317U (en) | 2020-12-29 | 2020-12-29 | Anti-fracture lengthened movable arm for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214657317U (en) |
-
2020
- 2020-12-29 CN CN202023241831.8U patent/CN214657317U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |