Precise large arm seat for small excavator

Abstract

The utility model discloses a precision big arm seat for a small excavator, which relates to the technical field of engineering machinery, and comprises a big arm seat body, the top of the big arm seat body is fixedly connected with a first mounting plate, and the top of the first mounting plate is fixedly connected with two first mounting blocks. A first mounting rod is fixedly connected between the two first mounting blocks, the front end and the rear end of the first mounting rod are both in threaded connection with first limiting rings, the outer walls of a plurality of first locking bolts are both in sliding connection with first gaskets, and an anti-loosening assembly and a transmission mechanism are mounted at the top of the large arm seat body. Due to the fact that the second locking bolt and the second gasket are tightly attached to the anti-loosening groove, firmer connection can be provided, the bolts are effectively prevented from loosening, meanwhile, the reliability and stability of connection can be improved, accidents are reduced, and the safety of a working place is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a precision boom seat for a small excavator. Background Art

[0002] The excavator boom mount is an important component of the excavator. It is usually composed of a boom mount frame, a boom, a hydraulic cylinder, a guide rod and other components. It is mainly used to support and adjust the excavator's boom so that it can accurately perform operations such as excavation and shoveling. The excavator boom mount can provide a stable support structure so that the boom can withstand heavy loads and high-intensity excavation operations. During the excavation process, the boom mount can provide a stable support point for the boom, enabling it to accurately perform excavation and shoveling in complex environments such as soil.

[0003] Most of the existing parts installed on the top of the boom seat are connected by welding, which often causes large impacts and vibrations during use. The welded joints may suffer from fatigue fracture or cracking, resulting in insufficient connection strength, thus affecting the normal operation of the excavator boom seat. In addition, the booms of most small excavators have low control over precision, thereby reducing the accuracy of the excavator.

[0004] Therefore, it is urgent to provide a precision boom seat for a small excavator to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that most of the parts installed on the top of the existing boom seat are connected by welding, which often leads to large impacts and vibrations during use. The welding joints may have problems such as fatigue fracture or cracking, resulting in insufficient connection strength, thereby affecting the normal operation of the excavator boom seat. In addition, the booms of most small excavators have low control over precision, thereby reducing the accuracy of the excavator.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a precision boom seat for a small excavator, comprising a boom seat body, a first mounting plate is fixedly connected to the top of the boom seat body, two first mounting blocks are fixedly connected to the top of the first mounting plate, and a first mounting rod is fixedly connected between the two first mounting blocks;

[0007] The front and rear ends of the first mounting rod are both threadedly connected with a first limiting ring, the outer wall of the first limiting ring is rotatably connected to the excavator boom, and the boom seat body and the first mounting plate are both provided with a plurality of mounting holes;

[0008] The inner walls of the plurality of mounting holes are all threadedly connected with first locking bolts, the outer walls of the plurality of the first locking bolts are all slidably connected with first gaskets, and an anti-loosening component and a transmission mechanism are installed on the top of the large arm seat body.

[0009] The utility model is further configured as follows: the main body of the large arm seat is made of carbon fiber material.

[0010] Through the above technical solution, the strength of carbon fiber is several times higher than that of steel, which can provide higher structural rigidity and load-bearing capacity, and the density of carbon fiber is lower. Compared with metal materials, the use of carbon fiber material can reduce the weight of the boom body itself and improve the working efficiency and fuel economy of the excavator.

[0011] The utility model is further configured as follows: the anti-loosening component includes a plurality of slide grooves opened on one side of the top of the boom seat body, the inner walls of the plurality of slide grooves are slidably connected with sliders, the tops of the plurality of sliders are fixedly connected with connecting plates, the front ends of the plurality of connecting plates are threadedly connected with second locking bolts, the outer walls of the plurality of groups of the second locking bolts are slidably connected with second gaskets, and the rear ends of the plurality of connecting plates are fixedly connected with the first anti-loosening plate and the second anti-loosening plate.

[0012] Through the above technical solution, the slider is first slid into the arm seat body through the set slide groove, and then the slider drives the connecting plate to move synchronously, and the connecting plate drives the first anti-loosening plate and the second anti-loosening plate to move synchronously, and then through the cooperation of the second locking bolt and the second gasket, the connecting plate is threadedly connected to the outer wall of the first mounting plate to achieve the anti-loosening effect.

[0013] The utility model is further configured as follows: the plurality of slide blocks and the connecting plates all adopt an integrated structure.

[0014] Through the above technical solution, the integrated structure can provide greater strength and stability, so that the connecting plate and the slider can withstand greater force and load, and the integrated structure can reduce the looseness and friction between the slider and the connecting plate. Since the connecting plate and the slider are made of the same material and processing technology, the fit between them is tighter, which can effectively reduce performance degradation or failure caused by looseness.

[0015] The utility model is further configured as follows: a plurality of the first anti-loosening plates and the second anti-loosening plates are all provided with anti-loosening grooves, and a plurality of the second locking bolts and the outer walls of the second gaskets are all tightly fitted with the corresponding anti-loosening grooves.

[0016] Through the above technical solution, the design of the anti-loosening groove can increase the friction between the second locking bolt and the second gasket to prevent them from loosening under vibration or other external forces. The second locking bolt and the second gasket fit tightly with the anti-loosening groove to provide a more secure connection and effectively prevent the bolts from loosening. Loose bolts may cause failure, malfunction or dangerous situations of machines or equipment. By using anti-loosening grooves and tight-fitting designs, the reliability and stability of the connection can be improved, the occurrence of accidents can be reduced, and the safety of the workplace can be improved.

[0017] The utility model is further configured as follows: the transmission mechanism includes a plurality of second mounting blocks fixedly connected to the top of the boom seat body, a second mounting rod is fixedly connected between every two of the second mounting blocks, second limiting rings are threadedly connected to the front and rear ends of the two second mounting rods, high-precision hydraulic rods are rotatably connected to the outer walls of the two second mounting rods, and the other ends of the two high-precision hydraulic rods are rotatably connected to connecting pieces.

[0018] Through the above technical solution, two high-precision hydraulic rods are first started, and then both ends of the high-precision hydraulic rods are rotatably connected to the second mounting rod and the connecting piece, so that the excavator arm can move up and down, thereby achieving a transmission effect.

[0019] The utility model is further configured as follows: the outer walls of the two connecting pieces are provided with rotation grooves, and the other ends of the two high-precision hydraulic rods are rotationally connected to the outer walls of the rotation grooves.

[0020] Through the above technical solution, by connecting the other end of the high-precision hydraulic rod to the outer wall of the rotating groove of the connecting piece, a rotational connection between the connecting piece and the high-precision hydraulic rod can be achieved, which allows the connecting piece to rotate or swing within a certain range to adapt to the movement requirements of the machine or equipment during operation. At the same time, it can also prevent the high-precision hydraulic rod from being misaligned during operation, thereby improving the overall safety of the excavator.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The utility model provides an anti-loosening assembly. Since the second locking bolt and the second gasket are closely fitted with the anti-loosening groove, a more secure connection can be provided, which effectively prevents the bolt from loosening. Meanwhile, the reliability and stability of the connection can be improved, the occurrence of accidents can be reduced, and the safety of the workplace can be improved.

[0023] 2. The utility model sets a high-precision hydraulic rod. The use of high-precision hydraulic rod can improve the stability, accuracy, energy efficiency and service life of the excavator boom seat, while improving the operating experience, which will play a positive role in improving the working efficiency, safety and reliability of the excavator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the appearance diagram of the utility model;

[0025] Figure 2 It is the front view of the utility model;

[0026] Figure 3 It is a top view of the utility model;

[0027] Figure 4 It is a cross-sectional view of the utility model;

[0028] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 6 for Figure 4 A partial enlarged view of point C in the middle;

[0030] Figure 7 for Figure 2 A partial enlarged view of point A in the middle.

[0031] In the figure: 1. boom seat body; 101. first mounting plate; 2. first mounting block; 3. first mounting rod; 4. first limiting ring; 5. excavator boom; 6. mounting hole; 7. first locking bolt; 8. first gasket; 9. anti-loosening assembly; 901. slide groove; 902. slider; 903. connecting plate; 904. second locking bolt; 905. second gasket; 906. first anti-loosening plate; 907. second anti-loosening plate; 10. transmission mechanism; 1001. second mounting block; 1002. second mounting rod; 1003. second limiting ring; 1004. high-precision hydraulic rod; 1005. connecting piece. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0033] See also Figure 1 - Figure 7 , a precision boom seat for a small excavator, comprising a boom seat body 1, the boom seat body 1 is made of carbon fiber; the strength of carbon fiber is several times higher than that of steel, which can provide higher structural rigidity and bearing capacity, and the density of carbon fiber is low. Compared with metal materials, the use of carbon fiber material can reduce the weight of the boom seat body 1 itself, improve the working efficiency and fuel economy of the excavator, a first mounting plate 101 is fixedly connected to the top of the boom seat body 1, two first mounting blocks 2 are fixedly connected to the top of the first mounting plate 101, a first mounting rod 3 is fixedly connected between the two first mounting blocks 2, the front and rear ends of the first mounting rod 3 are both threadedly connected to the first limiting ring 4, the outer wall of the first limiting ring 4 is rotatably connected to the excavator boom 5, the boom seat body 1 and the first mounting plate 101 are both provided with a plurality of mounting holes 6, the inner walls of the plurality of mounting holes 6 are all threadedly connected to the first locking bolts 7, and the outer walls of the plurality of first locking bolts 7 are all slidably connected to the first gasket 8;

[0034] like Figure 1 , Figure 6 and Figure 7As shown, an anti-loosening component 9 and a transmission mechanism 10 are installed on the top of the big arm seat body 1. The anti-loosening component 9 includes a plurality of slide grooves 901 opened on one side of the top of the big arm seat body 1. The inner walls of the plurality of slide grooves 901 are slidably connected with sliders 902. The tops of the plurality of sliders 902 are fixedly connected with connecting plates 903. The plurality of sliders 902 and the connecting plates 903 are all of an integrated structure; the integrated structure can provide greater strength and stability, so that the connecting plates 903 and the sliders 902 can withstand greater forces and loads, and the integrated structure can reduce the sliders 902. The looseness and friction between the connecting plate 903 and the slider 902 are tighter because the connecting plate 903 and the slider 902 are made of the same material and processing technology, which can effectively reduce the performance degradation or failure caused by looseness. The front ends of multiple connecting plates 903 are all threadedly connected with the second locking bolts 904, and the outer walls of multiple groups of second locking bolts 904 are all slidably connected with the second gaskets 905. The rear ends of multiple connecting plates 903 are fixedly connected with the first anti-loosening plate 906 and the second anti-loosening plate 907; first, the slider 902 is passed through the set slide groove 901 slides into the big arm seat body 1, and then the slider 902 drives the connecting plate 903 to move synchronously, and the connecting plate 903 drives the first anti-loosening plate 906 and the second anti-loosening plate 907 to move synchronously, and then through the cooperation of the second locking bolt 904 and the second gasket 905, the connecting plate 903 is threadedly connected to the outer wall of the first mounting plate 101 to achieve the anti-loosening effect, and multiple first anti-loosening plates 906 and second anti-loosening plates 907 are provided with anti-loosening grooves, and multiple second locking bolts 904 and the outer walls of the second gasket 905 are tightly attached to the corresponding anti-loosening grooves The design of the anti-loosening groove can increase the friction between the second locking bolt 904 and the second gasket 905, preventing them from loosening under vibration or other external forces. The second locking bolt 904 and the second gasket 905 can be tightly fitted with the anti-loosening groove to provide a more secure connection, effectively preventing the bolts from loosening. Loose bolts may cause failure, malfunction or dangerous conditions of the machine or equipment. By using the anti-loosening groove and the tight fitting design, the reliability and stability of the connection can be improved, the occurrence of accidents can be reduced, and the safety of the workplace can be improved.

[0035] like Figure 2 , Figure 3 and Figure 5As shown, the transmission mechanism 10 includes a plurality of second mounting blocks 1001 fixedly connected to the top of the boom seat body 1, a second mounting rod 1002 is fixedly connected between every two second mounting blocks 1001, and the front and rear ends of the two second mounting rods 1002 are both threadedly connected with second limiting rings 1003, and the outer walls of the two second mounting rods 1002 are both rotatably connected with high-precision hydraulic rods 1004, and the other ends of the two high-precision hydraulic rods 1004 are both rotatably connected with connecting pieces 1005; firstly, the two high-precision hydraulic rods 1004 are started, and then both ends of the high-precision hydraulic rods 1004 are rotatably connected with the second mounting rods 1002 and the connecting piece 1005, so that the excavator can move forward and backward. The machine arm 5 can move up and down to achieve a transmission effect. The outer walls of the two connecting parts 1005 are provided with rotation grooves, and the other ends of the two high-precision hydraulic rods 1004 are rotatably connected to the outer walls of the rotation grooves; by connecting the other ends of the high-precision hydraulic rods 1004 to the outer walls of the rotation grooves of the connecting parts 1005, a rotational connection between the connecting parts 1005 and the high-precision hydraulic rods 1004 can be achieved, which allows the connecting parts 1005 to rotate or swing within a certain range to adapt to the movement requirements of the machine or equipment during work, and at the same time, it can also prevent the high-precision hydraulic rods 1004 from being misaligned during operation, thereby improving the overall safety of the excavator.

[0036] When the utility model is in use, the slider 902 is first slid into the boom seat body 1 through the provided slide groove 901, and then the slider 902 drives the connecting plate 903 to move synchronously, and the connecting plate 903 drives the first anti-loosening plate 906 and the second anti-loosening plate 907 to move synchronously, and then the second locking bolt 904 and the second gasket 905 cooperate to thread the connecting plate 903 to the outer wall of the first mounting plate 101 to achieve the anti-loosening effect, and then the two high-precision hydraulic rods 1004 are started. Since both ends of the high-precision hydraulic rods 1004 are rotatably connected to the second mounting rod 1002 and the connecting piece 1005, the excavator boom 5 can move up and down, thereby achieving the transmission effect.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A precision boom base for a small excavator, comprising a boom base body (1), characterized in that: A first mounting plate (101) is fixedly connected to the top of the large arm seat body (1), two first mounting blocks (2) are fixedly connected to the top of the first mounting plate (101), and a first mounting rod (3) is fixedly connected between the two first mounting blocks (2); The front and rear ends of the first mounting rod (3) are both threadedly connected to a first limiting ring (4), the outer wall of the first limiting ring (4) is rotatably connected to an excavator boom (5), and a plurality of mounting holes (6) are provided on the boom seat body (1) and the first mounting plate (101); The inner walls of the plurality of mounting holes (6) are all threadedly connected with first locking bolts (7), the outer walls of the plurality of first locking bolts (7) are all slidably connected with first washers (8), and the top of the large arm seat body (1) is installed with an anti-loosening component (9) and a transmission mechanism (10).

2. The precision boom mount for a small excavator according to claim 1, characterized in that: The large arm seat body (1) is made of carbon fiber material.

3. The precision boom mount for a small excavator according to claim 1, characterized in that: The anti-loosening assembly (9) includes a plurality of slide grooves (901) opened on one side of the top of the large arm seat body (1); the inner walls of the plurality of slide grooves (901) are slidably connected with sliders (902); the tops of the plurality of sliders (902) are fixedly connected with connecting plates (903); the front ends of the plurality of connecting plates (903) are threadedly connected with second locking bolts (904); the outer walls of the plurality of groups of the second locking bolts (904) are slidably connected with second gaskets (905); and the rear ends of the plurality of connecting plates (903) are fixedly connected with the first anti-loosening plate (906) and the second anti-loosening plate (907).

4. The precision boom mount for a small excavator according to claim 3, characterized in that: The plurality of sliding blocks (902) and the connecting plate (903) all adopt an integrated structure.

5. The precision boom mount for a small excavator according to claim 3, characterized in that: The plurality of first anti-loosening plates (906) and the second anti-loosening plates (907) are all provided with anti-loosening grooves, and the outer walls of the plurality of second locking bolts (904) and the second gaskets (905) are all tightly fitted with the corresponding anti-loosening grooves.

6. The precision boom mount for a small excavator according to claim 1, characterized in that: The transmission mechanism (10) comprises a plurality of second mounting blocks (1001) fixedly connected to the top of the boom seat body (1), a second mounting rod (1002) being fixedly connected between every two of the second mounting blocks (1001), a second limiting ring (1003) being threadedly connected at both front and rear ends of the two second mounting rods (1002), a high-precision hydraulic rod (1004) being rotatably connected to the outer walls of the two second mounting rods (1002), and a connecting piece (1005) being rotatably connected to the other ends of the two high-precision hydraulic rods (1004).

7. The precision boom mount for a small excavator according to claim 6, characterized in that: The outer walls of the two connecting members (1005) are both provided with a rotation groove, and the other ends of the two high-precision hydraulic rods (1004) are both rotationally connected to the outer walls of the rotation groove.

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