Reinforcing auxiliary assembly for extension jib

Abstract

The utility model discloses an extension jib reinforcement auxiliary assembly which comprises a mounting arm, one end of the mounting arm is used for being mounted on a vehicle body, the other end of the mounting arm is rotatably connected with an extension jib, the mounting arm is provided with a first driving cylinder used for driving one end of the extension jib to swing, one end of the extension jib is rotatably connected with a driving arm, and the other end of the mounting arm is provided with a second driving cylinder used for driving the other end of the extension jib to swing. One end of the driving arm is connected with an excavator bucket, and the extension arm is provided with a second driving cylinder for driving one end of the driving arm to swing; one end of the driving rod is rotationally connected to the mounting arm, the other end of the driving rod is connected with a moving part, the moving part is in sliding fit with the extension arm, and when the extension arm is rotationally folded relative to the mounting arm, the driving rod drives the moving part to abut against the driving arm. According to the extension jib reinforcement auxiliary assembly of the structure, the moving part can abut against one end of the driving arm, so that external force assistance for keeping deflection of the driving arm is formed, and the driving force of an excavator bucket is increased, so that excavation is better conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator support arms, in particular to an extended arm force-enhancing auxiliary component. Background Art

[0002] As a kind of construction machinery, an excavator usually includes a body, a two-section arm and a bucket. The bucket is usually detachably connected to the arm, and the bucket includes a variety of models such as grab bucket, digging bucket, hydraulic clamp, etc. In use, people can select the corresponding bucket model according to their needs for assembly and use. Specifically, in scenes such as construction excavation or river dredging and silt removal, the extended arm of the excavator rotates to connect the bucket, and the bucket is connected to the second telescopic rod of the cylinder, so that the bucket is driven to deflect through the second telescopic rod, thereby achieving operations such as transportation or excavation. However, when the bucket encounters a mud layer with greater resistance during excavation, since the bucket has no external force assistance except the cylinder, and the load capacity of the cylinder is limited, it is easy for the resistance of the mud layer to be greater than the driving force of the cylinder, which will cause the bucket to stagnate or even retreat, and it is easy to cause an impact on the cylinder. Utility Model Content

[0003] In view of the above shortcomings, the utility model proposes an extended arm force-enhancing auxiliary component. When the extended arm is rotated and folded relative to the mounting arm, the movable part can press against one end of the driving arm, thereby forming an external force to assist in maintaining the deflection of the driving arm, which is beneficial to increase the driving force of the bucket for better excavation.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An extended arm force-enhancing auxiliary component comprises: a mounting arm, one end of the mounting arm is used to be mounted on a vehicle body, the other end of the mounting arm is rotatably connected to the extended arm, the mounting arm is provided with a first driving cylinder for driving one end of the extended arm to swing, one end of the extended arm is rotatably connected to the driving arm, one end of the driving arm is connected to a bucket, and the extended arm is provided with a second driving cylinder for driving one end of the driving arm to swing; a driving rod, one end of the driving rod is rotatably connected to the mounting arm, the other end of the driving rod is connected to a moving part, the moving part is slidably matched with the extended arm, and when the extended arm is rotated and folded relative to the mounting arm, the driving rod drives the moving part to press against the driving arm.

[0006] According to the extended arm force-enhancing auxiliary component of the embodiment of the utility model, at least the following beneficial effects are achieved: when the bucket needs to dig the mud layer, the first driving cylinder drives the extended arm to deflect, so that the extended arm is folded relative to the mounting arm, and then the second driving cylinder drives the driving arm to deflect, so that the driving arm is folded relative to the extended arm, and finally the bucket can complete the operation of digging the mud layer upward. In the process of folding the extended arm relative to the mounting arm, the extended arm, the driving rod and the moving part jointly form a group of crank slider mechanisms, and the extended arm forms a crank portion, so that the driving rod drives the moving part to move under the movement of the extended arm, so that the moving part can press against the driving arm, and then form an external force auxiliary to keep the driving arm deflected, which is beneficial to increase the driving force of the bucket for better digging, and is also beneficial to avoid the bucket retreating and causing impact on the second driving cylinder. When the extended arm rotates and unfolds relative to the mounting arm, the driving rod drives the moving part to reset, so that the moving part can be away from the driving arm, so that the second driving cylinder can drive the driving arm to reset.

[0007] Furthermore, the second driving cylinder has a second telescopic rod, one end of the second telescopic rod is connected to the driving arm, the extension arm is provided with a slide groove parallel to the telescopic direction of the second telescopic rod, and the moving part is slidably matched with the slide groove.

[0008] Furthermore, the extension arm is provided with two mounting plates in parallel, each mounting plate is provided with a long hole, the movable part includes a transverse plate portion, both ends of the transverse plate portion are respectively passed through the corresponding long holes, and two driving rods are provided, and the transverse plate portion is rotatably connected between the two driving rods.

[0009] Furthermore, the transverse plate portion is adapted to the shape of the elongated hole, two ends of the transverse plate portion are provided with mounting shafts, and the driving rod is provided with a through hole through which the mounting shaft can movably pass.

[0010] Furthermore, a threaded hole is formed on the side wall of the transverse plate portion, and one end of the mounting shaft is threadedly engaged with the threaded hole.

[0011] Furthermore, the movable member is adjustably provided with an abutment member, the abutment member is provided with an arc-shaped notch facing the driving arm, and the driving arm can be engaged with the arc-shaped notch.

[0012] Furthermore, the second driving cylinder has a second telescopic rod, the abutment member is connected with a screw rod, the screw rod and the second telescopic rod are parallel to each other, and the screw rod is threadedly connected to the moving member.

[0013] Furthermore, one end of the screw rod close to the moving member is connected with a rotating handle.

[0014] Furthermore, the mounting arm and the extension arm, and the extension arm and the driving arm are connected via a pivot.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of an extended arm force-enhancing auxiliary component of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of a partial structure with the mounting arm removed;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective.

[0020] In the figure: mounting arm 100, first drive cylinder 110, first telescopic rod 111, extension arm 200, slide groove 201, second drive cylinder 210, second telescopic rod 211, mounting plate 220, long hole 221, drive arm 300, bucket 310, drive rod 400, moving part 410, cross plate part 411, mounting shaft 412, protrusion 413, abutment part 500, arc notch 501, screw 510, rotating handle 520. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0023] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If the terms "first" or "second" are described, they are only used for descriptive purposes and cannot be understood to indicate or imply relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figures 1 to 3 , an extended arm 200 force-enhancing auxiliary component comprises: a mounting arm 100 and a driving rod 400, wherein one end of the mounting arm 100 is used to be mounted on a vehicle body, and the other end of the mounting arm 100 is rotatably connected to the extended arm 200, the mounting arm 100 is provided with a first driving cylinder 110 for driving one end of the extended arm 200 to swing, one end of the extended arm 200 is rotatably connected to the driving arm 300, one end of the driving arm 300 is connected to a bucket 310, and the extended arm 200 is provided with a second driving cylinder 210 for driving one end of the driving arm 300 to swing; one end of the driving rod 400 is rotatably connected to the mounting arm 100, and the other end of the driving rod 400 is connected to a moving part 410, the moving part 410 is slidably matched with the extended arm 200, and when the extended arm 200 is rotated and folded relative to the mounting arm 100, the driving rod 400 drives the moving part 410 to press against the driving arm 300.

[0026] The extended arm 200 force-enhancing auxiliary component of the above structure, when the bucket 310 is needed to dig the mud layer, the first drive cylinder 110 drives the extended arm 200 to deflect, so that the extended arm 200 is folded relative to the mounting arm 100, and then the second drive cylinder 210 drives the drive arm 300 to deflect, so that the drive arm 300 is folded relative to the extended arm 200, and finally the bucket 310 can complete the operation of digging the mud layer upwards. In the process of folding the extension arm 200 relative to the mounting arm 100, the extension arm 200, the driving rod 400 and the moving member 410 together form a set of crank slider mechanisms, and the extension arm 200 forms a crank portion, so that the driving rod 400 drives the moving member 410 to move under the movement of the extension arm 200, so that the moving member 410 can press against the driving arm 300, thereby forming an external force auxiliary to keep the driving arm 300 deflected, which is beneficial to increase the driving force of the bucket 310 to drive it to dig, and is also beneficial to prevent the bucket 310 from retreating and causing an impact on the second driving cylinder 210. When the extension arm 200 rotates and unfolds relative to the mounting arm 100, the driving rod 400 drives the moving member 410 to reset, so that the moving member 410 can be away from the driving arm 300, so that the second driving cylinder 210 can drive the driving arm 300 to reset.

[0027] See also Figures 1 to 3 Further, the second driving cylinder 210 has a second telescopic rod 211, one end of the second telescopic rod 211 is connected to the driving arm 300, the extension arm 200 is provided with a chute 201 parallel to the extension direction of the second telescopic rod 211, and the moving member 410 is slidably matched with the chute 201. Specifically, when the second telescopic rod 211 is extended, one end of the driving arm 300 deflects toward a side away from the second driving cylinder 210, so that the other end of the driving arm 300 is folded relative to the extension arm 200, so that the bucket 310 can dig the mud layer upward. Among them, the moving member 410 is provided with a protrusion 413 that matches the shape of the chute 201, and the protrusion 413 can be fixed to the moving member 410 by bolts, so that the movement of the moving member 410 is guided and limited by the cooperation of the protrusion 413 and the chute 201, which is conducive to avoiding the displacement of the moving member 410 and affecting its use. It can be understood that the first driving cylinder 110 has a first telescopic rod 111, and one end of the first telescopic rod 111 is connected to one end of the extension arm 200, so as to facilitate driving the extension arm 200 to deflect.

[0028] See also Figures 1 to 3Further, the extension arm 200 is provided with two mounting plates 220 in parallel, each mounting plate 220 is provided with an elongated hole 221, the moving member 410 includes a transverse plate portion 411, and the two ends of the transverse plate portion 411 are respectively passed through the corresponding elongated holes 221, and the driving rod 400 is provided with two transverse plates 411, which are rotatably connected between the two driving rods 400. Specifically, the two ends of the transverse plate portion 411 are respectively passed through the corresponding elongated holes 221, so that the moving member 410 can have an installation position located outside the extension arm 200, so as to adapt to the installation of the driving rod 400 on the outside of the extension arm 200, which is conducive to simplifying the installation difficulty of the driving rod 400.

[0029] See also Figures 1 to 3 Furthermore, the shape of the horizontal plate portion 411 matches that of the long hole 221, and mounting shafts 412 are provided at both ends of the horizontal plate portion 411, and the driving rod 400 is provided with a through hole through which the mounting shaft 412 can be movably passed, so as to facilitate the driving shaft to rotate relative to the mounting shaft 412. It is understandable that in order to prevent the driving rod 400 from being separated from the mounting shaft 412, a fixing nut is connected to one end of the mounting shaft 412.

[0030] See also Figures 1 to 3 Furthermore, a threaded hole is provided on the side wall of the horizontal plate portion 411, and one end of the mounting shaft 412 is threadedly engaged with the threaded hole, thereby facilitating people to install or remove the mounting shaft 412, and facilitating people to first install the moving part 410 and then assemble the mounting shaft 412, thereby simplifying the difficulty of installing the moving part 410.

[0031] See also Figure 2 and Figure 3 Further, the moving member 410 is adjustably provided with an abutment member 500, and the abutment member 500 is provided with an arc-shaped notch 501 facing the driving arm 300, and the driving arm 300 can be engaged with the arc-shaped notch 501, so that the arc-shaped notch 501 accommodates part of the driving arm 300, which is conducive to the abutment member 500 to better push the driving arm 300 to deflect. It can be understood that the opening size of the arc-shaped notch 501 is slightly larger than or equal to the thickness size of the driving arm 300, and the inner wall of the arc-shaped notch 501 has a plane abutting against the side wall of the driving arm 300, which is conducive to the abutment member 500 to better drive the deflection movement of the driving arm 300.

[0032] See also Figures 1 to 3Further, the second driving cylinder 210 has a second telescopic rod 211, the abutting member 500 is connected with a screw rod 510, the screw rod 510 and the second telescopic rod 211 are parallel to each other, and the screw rod 510 is threadedly connected with the moving member 410. Specifically, the screw rod 510 is rotated to make the abutting member 500 extend or retract relative to the moving member 410, so that people can adjust the position of the abutting member 500, which is conducive to changing the distance between the abutting member 500 and the driving arm 300, so that the abutting member 500 can better press against the driving arm 300, thereby forming an external force auxiliary to keep the driving arm 300 deflected.

[0033] See also Figure 2 and Figure 3 Furthermore, one end of the screw rod 510 close to the moving member 410 is connected to a rotating handle 520. Specifically, people adjust the position of the abutting member 500 by changing the number of turns and the rotation direction of the rotating handle 520 so that one end of the screw rod 510 extends or retracts relative to the moving member 410.

[0034] Furthermore, the mounting arm 100 and the extension arm 200 , and the extension arm 200 and the driving arm 300 are connected via a pivot, so that the extension arm 200 can rotate relative to the mounting arm 100 , and the driving arm 300 can rotate relative to the extension arm 200 .

[0035] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An extended arm force-enhancing auxiliary component, characterized in that: include: A mounting arm (100), one end of the mounting arm (100) being used for mounting on a vehicle body, the other end of the mounting arm (100) being rotatably connected to an extension arm (200), the mounting arm (100) being provided with a first driving cylinder (110) for driving one end of the extension arm (200) to swing, one end of the extension arm (200) being rotatably connected to a driving arm (300), one end of the driving arm (300) being connected to a bucket (310), and the extension arm (200) being provided with a second driving cylinder (210) for driving one end of the driving arm (300) to swing; A driving rod (400), one end of which is rotatably connected to the mounting arm (100), and the other end of which is connected to a moving part (410), wherein the moving part (410) is slidably matched with the extension arm (200), and when the extension arm (200) is rotated and folded relative to the mounting arm (100), the driving rod (400) drives the moving part (410) to press against the driving arm (300).

2. The extended arm force-enhancing auxiliary assembly according to claim 1, characterized in that: The second driving cylinder (210) has a second telescopic rod (211), one end of the second telescopic rod (211) is connected to the driving arm (300), the extension arm (200) is provided with a slide groove (201) parallel to the telescopic direction of the second telescopic rod (211), and the moving member (410) is slidably matched with the slide groove (201).

3. The extended arm force-enhancing auxiliary assembly according to claim 1, characterized in that: The extension arm (200) is provided with two mounting plates (220) in parallel, each mounting plate (220) is provided with a long hole (221), the moving member (410) comprises a transverse plate portion (411), two ends of the transverse plate portion (411) respectively pass through the corresponding long holes (221), two driving rods (400) are provided, and the transverse plate portion (411) is rotatably connected between the two driving rods (400).

4. The extended arm force-enhancing auxiliary assembly according to claim 3, characterized in that: The transverse plate portion (411) is adapted to the shape of the elongated hole (221), and mounting shafts (412) are provided at both ends of the transverse plate portion (411), and the driving rod (400) is provided with a through hole through which the mounting shaft (412) can movably pass.

5. The extended arm force-enhancing auxiliary assembly according to claim 4, characterized in that: A threaded hole is provided on the side wall of the transverse plate portion (411), and one end of the mounting shaft (412) is threadedly engaged with the threaded hole.

6. The extended arm force-enhancing auxiliary assembly according to claim 1, characterized in that: The movable member (410) is adjustably provided with an abutment member (500), the abutment member (500) is provided with an arc-shaped notch (501) facing the driving arm (300), and the driving arm (300) can be snap-fitted into the arc-shaped notch (501).

7. The extended arm force-enhancing auxiliary assembly according to claim 6, characterized in that: The second driving cylinder (210) has a second telescopic rod (211), the abutment member (500) is connected with a screw rod (510), the screw rod (510) and the second telescopic rod (211) are parallel to each other, and the screw rod (510) is threadedly connected to the moving member (410).

8. The extended arm force-enhancing auxiliary assembly according to claim 7, characterized in that: One end of the screw rod (510) close to the moving member (410) is connected to a rotating handle (520).

9. The extended arm force-enhancing auxiliary assembly according to claim 1, characterized in that: The mounting arm (100) and the extension arm (200), and the extension arm (200) and the driving arm (300) are connected via a pivot.

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