Movable arm structure suitable for multi-model excavator
By providing an adjustment component and a stabilizing structure on the extension arm, the adaptation problem of the fixed length of the extension arm is solved, and stable adaptation and safety improvement are achieved on multiple types of excavators.
Patent Information
- Application Number
- CN202422604810.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing extended arm has a fixed length and cannot be adapted to different excavators, resulting in uneven gravity distribution, safety hazards, and limited range of motion.
By setting up an adjustment component, using a hydraulic cylinder to drive the connection block to move, and combining the limit groove and stabilizing convex angle, the length of the extension arm can be adjusted to ensure stability and adaptability.
The extended arm can be stably adapted to various excavator models, reducing the limitation of motion range, avoiding unstable center of gravity and shaking, and improving working stability and safety.
Smart Images
Figure CN223305078U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of excavator booms, in particular to a boom structure suitable for multiple types of excavators. Background Art
[0002] The boom that is suitable for many types of excavators usually refers to the extended boom, which is a front-end working device specially designed and manufactured to expand the working range of the excavator.
[0003] Existing extension arms are usually fixed in length and do not have the function of adjusting the length, which results in the extension arm not being able to adapt better when used on different excavators. Especially when used on smaller excavators, it is easy to have a large range of motion restriction, affecting the normal operation of the excavator. In addition, inappropriate use of the extension arm will lead to uneven gravity distribution, which poses certain safety hazards when the excavator is working. Therefore, we propose a boom structure that is suitable for multiple types of excavators. Utility Model Content
[0004] The purpose of the present utility model is to provide a boom structure that is suitable for various types of excavators. By setting an adjustment component, specifically a hydraulic cylinder drives the connecting block to move left or right, the connecting block will drive the adjusting arm to move together through the slider, thereby adjusting the overall length of the extended arm to meet different needs, so as to better adapt to various excavator models and avoid the situation of unstable center of gravity during work, while reducing the limitation of the movement range of the extended arm, solving the problem that the existing extended arm is usually fixed in length and does not have the function of adjusting the length, resulting in the extended arm not being better adapted when used on different excavators, and the inappropriate use of the extended arm will lead to uneven gravity distribution, which poses certain safety hazards when the excavator is working.
[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0006] The utility model is a boom structure suitable for various types of excavators, comprising a boom, a fixing seat fixedly connected to the top of the boom, a hydraulic cylinder fixedly connected to the right side of the fixing seat, an adjustment assembly provided on the left side of the boom, and an adjustment arm slidably connected to the inside of the boom;
[0007] A connecting block is provided on the left side of the fixing seat, a slider is fixedly connected to the top of the connecting block, the bottom of the slider is fixedly connected to the top of the adjusting arm, and the right side of the connecting block is fixedly connected to the left output end of the hydraulic cylinder.
[0008] Furthermore, two limiting grooves are provided at the bottom of the connecting block, and two limiting protrusions are fixedly connected to the top of the movable arm, and the outer surfaces of the limiting protrusions are in contact with the inner walls of the limiting grooves.
[0009] Furthermore, an opening is provided at the top of the movable arm, an inner wall of the opening contacts the surface of the slider, a fixing column is fixedly connected to the inner wall of the movable arm, and stabilizing convex corners are fixedly connected to the four corners of the inner wall of the movable arm.
[0010] Furthermore, a plurality of rollers are provided on all four outer sides of the fixed column, both ends of the rollers are rotatably connected to support blocks, and the side of the support block close to the fixed column is fixedly connected to the surface of the fixed column.
[0011] Furthermore, the stabilizing cam is L-shaped, and a side of the stabilizing cam close to the regulating arm contacts the surface of the regulating arm.
[0012] Furthermore, the interior of the adjustment arm is hollowed out, the outer surface of the roller contacts the inner wall of the adjustment arm, the fixing column passes through the adjustment arm and extends to the interior, the right side of the adjustment arm passes through the movable arm and extends to the interior, and the bottom of the connecting block contacts the top of the movable arm.
[0013] The utility model has the following beneficial effects:
[0014] The utility model provides an adjustment component, specifically a hydraulic cylinder drives the connecting block to move left or right, and the connecting block drives the adjusting arm to move together through the slider, thereby adjusting the overall length of the extension arm to meet different needs, thereby better adapting to various excavator models, avoiding unstable center of gravity during work, and reducing the movement range restriction of the extension arm.
[0015] The utility model provides a fixing column and a stabilizing convex angle, specifically the stabilizing convex angle is used to limit the adjusting arm, so that the adjusting arm is more stable during movement and avoids shaking. The roller rolls on the inner wall of the adjusting arm, which can make the adjusting arm move more smoothly and can limit the adjusting arm again, so that the adjusting arm can move in a straight line, again avoiding tilting or shaking.
[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2This is a schematic diagram of the internal cross-sectional structure of the movable arm of the utility model;
[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle;
[0021] Figure 4 This is a schematic diagram of the overall structure of the adjustment arm of the utility model;
[0022] Figure 5 This is a schematic diagram of the overall structure of the fixed column of the utility model;
[0023] Figure 6 This is a schematic structural diagram of the left end portion of the movable arm of the utility model.
[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0025] 1. Boom; 11. Fixed seat; 111. Hydraulic cylinder; 12. Adjustment assembly; 121. Adjustment arm; 122. Connecting block; 221. Limiting groove; 123. Limiting protrusion; 124. Slider; 13. Opening; 14. Fixed column; 141. Roller; 142. Support block; 15. Stabilizing cam. DETAILED DESCRIPTION
[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] See also Figure 1-6 As shown, the utility model is a boom structure suitable for various types of excavators, including a boom 1, a fixing base 11 fixedly connected to the top of the boom 1, a hydraulic cylinder 111 fixedly connected to the right side of the fixing base 11, an adjustment assembly 12 provided on the left side of the boom 1, and the adjustment assembly 12 including an adjustment arm 121 slidably connected to the inside of the boom 1;
[0028] A connecting block 122 is provided on the left side of the fixed seat 11, and a slider 124 is fixedly connected to the top of the connecting block 122, and the bottom of the slider 124 is fixedly connected to the top of the adjusting arm 121. The right side of the connecting block 122 is fixedly connected to the left output end of the hydraulic cylinder 111. By setting the adjustment component 12, specifically the hydraulic cylinder 111 drives the connecting block 122 to move left or right, the connecting block 122 will drive the adjusting arm 121 to move together through the slider 124, thereby adjusting the overall length of the extension arm to meet different needs, so as to better adapt to various excavator models, avoid unstable center of gravity during work, and reduce the movement range limitation of the extension arm.
[0029] Two limiting grooves 221 are provided at the bottom of the connecting block 122, and two limiting protrusions 123 are fixedly connected to the top of the movable arm 1. The outer surface of the limiting protrusion 123 contacts the inner wall of the limiting groove 221, and the connecting block 122 slides on the limiting protrusion 123 through the limiting groove 221, making the movement of the connecting block 122 more stable.
[0030] An opening 13 is provided at the top of the movable arm 1, and the inner wall of the opening 13 contacts the surface of the slider 124. A fixing column 14 is fixedly connected to the inner wall of the movable arm 1, and stabilizing cams 15 are fixedly connected to the four corners of the inner wall of the movable arm 1. The stabilizing cams 15 are used to limit the adjusting arm 121, so that the adjusting arm 121 is more stable during movement to avoid shaking.
[0031] Several rollers 141 are provided on the four outer sides of the fixed column 14, and both ends of the rollers 141 are rotatably connected to support blocks 142. The side of the support block 142 close to the fixed column 14 is fixedly connected to the surface of the fixed column 14. The rollers 141 will roll on the inner wall of the adjusting arm 121, which can make the adjusting arm 121 move more smoothly and can limit the adjusting arm 121 again, so that the adjusting arm 121 can move in a straight line, and avoid tilting or shaking again.
[0032] The stabilizing cam 15 is L-shaped. The side of the stabilizing cam 15 close to the adjusting arm 121 contacts the surface of the adjusting arm 121 . The L-shaped stabilizing cam 15 can better fit the adjusting arm 121 , thereby better stabilizing the adjusting arm 121 .
[0033] The interior of the adjusting arm 121 is hollowed out, the outer surface of the roller 141 contacts the inner wall of the adjusting arm 121, the fixing column 14 passes through the adjusting arm 121 and extends to the inside, the right side of the adjusting arm 121 passes through the movable arm 1 and extends to the inside, and the bottom of the connecting block 122 contacts the top of the movable arm 1.
[0034] A specific application of this embodiment is:
[0035] When the extension arm is installed on the excavator, the hydraulic cylinder 111 is started to drive the connecting block 122 to move left or right, and the connecting block 122 slides on the limiting protrusion 123 through the limiting groove 221, so that the movement of the connecting block 122 is more stable, and the connecting block 122 will drive the adjusting arm 121 to move together through the slider 124, and the slider 124 slides in the opening 13. When the adjusting arm 121 moves, the outer side slides on the four stabilizing convex corners 15. The stabilizing convex corners 15 are used to limit the adjusting arm 121, so that the adjusting arm 121 is more stable when moving, avoiding shaking, and improving the overall stability. and rigidity, and when the adjusting arm 121 moves, the roller 141 rolls on the inner wall of the adjusting arm 121. The setting of the roller 141 can make the movement of the adjusting arm 121 smoother, and multiple groups of rollers 141 are set on the fixed column 14 to limit the adjusting arm 121 again, so that the adjusting arm 121 can move in a straight line, and avoid tilting or shaking again. The movement of the adjusting arm 121 can adjust the overall length of the extension arm to meet different needs, so as to better adapt to various excavator models, avoid unstable center of gravity during work, and reduce the movement range limitation of the extension arm.
[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A boom structure suitable for various types of excavators, comprising a boom (1), wherein a fixing seat (11) is fixedly connected to the top of the boom (1), a hydraulic cylinder (111) is fixedly connected to the right side of the fixing seat (11), an adjustment assembly (12) is provided on the left side of the boom (1), and the adjustment assembly (12) includes an adjustment arm (121) slidably connected to the inside of the boom (1), It is characterized by: A connecting block (122) is provided on the left side of the fixing seat (11); a slider (124) is fixedly connected to the top of the connecting block (122); the bottom of the slider (124) is fixedly connected to the top of the regulating arm (121); and the right side of the connecting block (122) is fixedly connected to the left output end of the hydraulic cylinder (111).
2. The boom structure adapted to various types of excavators according to claim 1, characterized in that: Two limiting grooves (221) are provided at the bottom of the connecting block (122), and two limiting protrusions (123) are fixedly connected to the top of the movable arm (1), wherein the outer surfaces of the limiting protrusions (123) are in contact with the inner walls of the limiting grooves (221).
3. The boom structure adapted to various types of excavators according to claim 2, characterized in that: An opening (13) is provided at the top of the movable arm (1), the inner wall of the opening (13) contacts the surface of the slider (124), a fixing column (14) is fixedly connected to the inner wall of the movable arm (1), and stabilizing convex corners (15) are fixedly connected to the four corners of the inner wall of the movable arm (1).
4. The boom structure adapted to various types of excavators according to claim 3, characterized in that: A plurality of rollers (141) are provided on the four outer sides of the fixed column (14), and both ends of the rollers (141) are rotatably connected to support blocks (142), and the support blocks (142) are fixedly connected to the surface of the fixed column (14) on the side close to the fixed column (14).
5. The boom structure adapted to various types of excavators according to claim 4, characterized in that: The stabilizing convex angle (15) is L-shaped, and the side of the stabilizing convex angle (15) close to the regulating arm (121) contacts the surface of the regulating arm (121).
6. The boom structure adapted to various types of excavators according to claim 4, characterized in that: The interior of the regulating arm (121) is hollowed out, the outer surface of the roller (141) contacts the inner wall of the regulating arm (121), and the fixing column (14) passes through the regulating arm (121) and extends to the interior.
7. The boom structure adapted to various types of excavators according to claim 4, characterized in that: The right side of the regulating arm (121) passes through the movable arm (1) and extends to the inside, and the bottom of the connecting block (122) contacts the top of the movable arm (1).