Support for connecting movable arm and bucket rod of engineering machinery
By designing the threaded connection structure of the bracket side plate and the pin head plate, the problem of deformation at the connection between the engineering machinery boom and the rod is solved, saving replacement cost and time, and improving maintenance efficiency.
Patent Information
- Application Number
- CN202420911042.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The connection between the existing engineering mechanical boom and the rod is prone to deform after a long period of heavy load, resulting in high overall replacement cost and time-consuming, affecting the progress of the project.
A bracket connecting the engineering mechanical boom and the rod is designed, including bracket side plates, pin head plates, screws and reinforcement structures, which improve the connection strength through threaded connection and welding, allowing some parts to be replaced to repair deformed parts.
Reduces replacement costs and time, improves maintenance convenience, and reduces the impact on project progress.
Smart Images
Figure CN222893693U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering machinery components, in particular to a bracket for connecting an engineering machinery boom and a dipper rod. Background Art
[0002] The connection between the boom and the boom of traditional engineering machinery is provided with a pin shaft hole, and is movably connected to the boom through the pin shaft. A hydraulic cylinder is installed at the end of the boom, and the telescopic end of the cylinder is connected to the boom. The operation of the cylinder is the driving source for the movement between the boom and the boom.
[0003] In the process of implementing the solution, the inventors found that the following problems existed in the prior art and have not been well solved: However, since the connection is located on the boom, the connection of the construction machinery will often be deformed after a long period of high-load work, so the deformed part needs to be replaced, but since most of the booms are one-piece, if they are deformed, they need to be replaced as a whole. Not only is the replacement cost high, but the replacement also takes a lot of time, affecting the progress of the project. Utility Model Content
[0004] The main purpose of the utility model is to provide a bracket for connecting the boom and the dipper arm of an engineering machinery, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The lockhole that is formed on the two ends of the support frame is formed on the upper and lower ends of the support frame, and the lockhole that is formed on the two ends of the support frame is formed on the upper and lower ends of the support frame.
[0007] Preferably, a boss is provided at the front end of the pin shaft ear plate located at the position of the pin shaft hole.
[0008] Preferably, the pin shaft ear plates are respectively connected to the bosses by welding, a plurality of reinforcing plates are equidistantly welded to the outer wall of the bosses, and the ends of the reinforcing plates and the pin shaft ear plates close to each other are both welded.
[0009] Preferably, the welding method between the pin shaft ear plate, the boss and the reinforcement plate is full welding.
[0010] Preferably, a reinforcing rib is welded on the inclined side wall of the pin shaft ear plate close to one end of the bracket side plate.
[0011] Preferably, the inclined side walls of the bracket side plates at the boss positions are all bored with rib grooves, the reinforcing ribs are respectively matched with the inner diameters of the rib grooves, and the reinforcing ribs are respectively inserted into the interiors of the rib grooves.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The bracket proposed in the present application is a connecting piece that can connect the boom and the dipper arm. When deformation occurs, only some of the components in the present application need to be replaced, which not only greatly saves the cost required for replacement, but also has the effect of facilitating replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of a bracket for connecting the boom and the dipper arm of an engineering machinery according to the utility model;
[0015] Figure 2 This is a schematic structural diagram of two bracket side plates of a bracket connecting a boom and a dipper arm of an engineering machinery according to the utility model;
[0016] Figure 3 It is a structural schematic diagram of a bottom plate and a curved plate of a bracket for connecting a boom and a diagonal arm of an engineering machinery according to the utility model;
[0017] Figure 4 The utility model is a schematic diagram of a bracket pin shaft ear plate structure for connecting the boom and the dipper arm of an engineering machinery.
[0018] In the figure: 1, bracket side plate; 2, bracket fixing plate; 3, pin shaft ear plate; 4, pin shaft hole; 5, boss; 6, reinforcement plate; 7, bottom plate; 71, curved plate; 8, screw rod one; 9, screw rod two; 10, screw rod three; 11, nut; 12, reinforcement rib; 13, rib groove. DETAILED DESCRIPTION
[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0020] like Figure 1-4As shown, a bracket for connecting a boom and a dipper arm of an engineering machinery comprises a bracket side plate 1 and a screw rod 9. The number of the bracket side plates 1 is two, and two bracket fixing plates 2 are fixed between the bracket side plates 1. Both ends of the bracket side plates 1 are provided with pin shaft ear plates 3, and the pin shaft ear plates 3 are provided with pin shaft holes 4. Two or more screw rods 8 are fixed on the bottom and top oblique side walls of the pin shaft ear plates 3, and two or more screw rods 8 are fixed on the bottom and oblique side walls of both ends of the bracket side plates 1. 29, two or more screw rods 3 10 are fixed at both ends of the top of the bracket side plate 1, and a bent plate 71 is provided on the inclined side wall between the bracket side plate 1 and the pin shaft ear plate 3, and a bottom plate 7 is provided at the bottom between the bracket side plate 1 and the pin shaft ear plate 3, and screw rods 1 8, screw rods 2 9, screw rods 3 10 are respectively connected with the bottom plate 7 and the bent plate 71 matching the positions, and the outer walls of screw rods 1 8, screw rods 2 9, screw rods 3 10 passing through the bottom plate 7 and one end of the bent plate 71 are threadedly connected with nuts 11.
[0021] Specifically, the front end of the pin lug plate 3 located at the pin hole 4 is provided with a boss 5, the pin lug plate 3 is welded to the boss 5 respectively, a number of reinforcing plates 6 are welded to the outer wall of the boss 5 at equal intervals, the reinforcing plate 6 and the end close to the pin lug plate 3 are welded, and the welding method between the pin lug plate 3, the boss 5 and the reinforcing plate 6 is full welding, so that the pin lug plate 3 can provide better support for the pin through the boss 5 and the reinforcing plate 6.
[0022] Specifically, a reinforcing rib 12 is welded on the inclined side wall of the pin shaft ear plate 3 close to one end of the bracket side plate 1, and a rib groove 13 is chiseled on the inclined side wall of the bracket side plate 1 located at the position of the boss 5. The reinforcing ribs 12 are respectively matched with the inner diameter dimensions of the rib groove 13, and the reinforcing ribs 12 are respectively inserted into the inside of the rib groove 13 to strengthen the strength of the connection between the bracket side plate 1 and the pin shaft ear plate 3.
[0023] Working principle: The boom and the dipper arm are respectively located between the two bracket side plates 1 on the side away from each other of the two bracket fixing plates 2. The pin shaft passes through the boss 5 and the pin shaft hole 4 to be connected with the boom and the dipper arm. When the pin shaft ear plate 3 is deformed and damaged, the nut 11 is removed, and the bottom plate 7 and the bent plate 71 are pulled out from the screw rod 1 8, the screw rod 2 9 and the screw rod 3 10. Then the pin shaft ear plate 3 can drive the reinforcing rib 12 to be pulled out from the rib groove 13 in an oblique downward direction, and the disassembly is completed. The reinforcing rib 12 of the new pin shaft ear plate 3 is inserted into the rib groove 13, and the bottom plate 7 and the bent plate 71 are re-interpreted with the screw rod 1 8, the screw rod 2 9 and the screw rod 3 10, and then they are threadedly connected with the nut 11 and tightened to complete the installation.
[0024] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.
[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A bracket for connecting a boom and a dipper arm of an engineering machinery, comprising a bracket side plate (1) and a screw rod (9), characterized in that: The number of the bracket side plates (1) is two, two bracket fixing plates (2) are fixed between the bracket side plates (1), both ends of the bracket side plates (1) are provided with pin shaft ear plates (3), the pin shaft ear plates (3) are provided with pin shaft holes (4), the bottom and the top of the pin shaft ear plates (3) are fixed with two or more screw rods 1 (8), the bottom and the top of the two ends of the bracket side plates (1) are fixed with two or more screw rods 2 (9), the top of the two ends of the bracket side plates (1) are fixed with two or more than two screw rods three (10), a curved plate (71) is provided on the inclined side wall between the bracket side plate (1) and the pin shaft ear plate (3), a bottom plate (7) is provided at the bottom between the bracket side plate (1) and the pin shaft ear plate (3), the screw rod one (8), the screw rod two (9), and the screw rod three (10) are respectively connected to the bottom plate (7) and the curved plate (71) of matching positions, and the outer wall of the screw rod one (8), the screw rod two (9), and the screw rod three (10) passing through the bottom plate (7) and the curved plate (71) is threadedly connected with a nut (11).
2. The bracket for connecting the boom and the dipper arm of an engineering machinery according to claim 1, characterized in that: The front end of the pin shaft ear plate (3) located at the position of the pin shaft hole (4) is provided with a boss (5).
3. The bracket for connecting the boom and the dipper arm of an engineering machinery according to claim 2, characterized in that: The pin shaft ear plates (3) are respectively connected to the bosses (5) by welding, and a plurality of reinforcing plates (6) are welded to the outer wall of the bosses (5) at equal intervals, and the ends of the reinforcing plates (6) and the pin shaft ear plates (3) that are close to each other are both connected by welding.
4. The bracket for connecting the boom and the dipper arm of an engineering machinery according to claim 3, characterized in that: The welding method between the pin shaft ear plate (3), the boss (5) and the reinforcing plate (6) is full welding.
5. The bracket for connecting the boom and the dipper arm of an engineering machinery according to claim 1, characterized in that: A reinforcing rib (12) is welded on the oblique side wall of the pin shaft ear plate (3) close to one end of the bracket side plate (1).
6. The bracket for connecting the boom and the dipper arm of an engineering machinery according to claim 5, characterized in that: The inclined side walls of the bracket side plates (1) at the boss (5) are each provided with rib grooves (13), the reinforcing ribs (12) are respectively matched with the inner diameters of the rib grooves (13), and the reinforcing ribs (12) are respectively inserted into the interior of the rib grooves (13).