Excavator big arm cover plate

Abstract

The utility model discloses an excavator big arm cover plate, which relates to the technical field of engineering machinery, and comprises an arc-shaped plate, two sides of the arc-shaped plate are respectively and fixedly connected with a first straight plate and a second straight plate, and the top of the first straight plate and the top of the second straight plate are respectively provided with a reinforcing component; the bottom of the first straight plate, the bottom of the second straight plate and the bottom of the arc-shaped plate are fixedly connected with dustproof pads, the inner walls of the multiple installation holes are in threaded connection with locking bolts, and the outer walls of the multiple locking bolts are in sliding connection with first gaskets. The locking bolt can be effectively prevented from loosening, stability and firmness of connection are guaranteed, adjustment and disassembly can be conveniently carried out due to the sliding connection characteristic of the threaded rod, adjustment can be completed by rotating the locking nut, destructive disassembly is not needed, and time and energy are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a big arm cover plate of an excavator. Background Art

[0002] The excavator boom cover can effectively protect the boom from damage such as collision, wear and corrosion caused by external objects. During the working process, the excavator often needs to contact the ground, rocks or other obstacles, which may cause damage to the boom. The existence of the boom cover can reduce this risk, extend the service life of the boom, and reduce the maintenance and replacement time caused by collision and wear, thereby improving the working efficiency of the excavator. By protecting the boom from damage, the excavator can continue to work without having to stop to repair or replace damaged parts.

[0003] Most of the existing excavator boom covers are connected by welding. Due to the influence of temperature changes and thermal stress during the welding process, cracks may occur inside the weld. These cracks will weaken the strength of the welding point, thereby reducing the bearing capacity of the boom cover. In addition, during the welding process, pores may be generated inside the weld. The pores will cause the strength of the welding point to decrease, seriously affecting the service life of the boom cover.

[0004] Therefore, it is urgent to provide an excavator boom cover to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that most of the existing excavator boom covers are connected by welding. Due to the influence of temperature changes and thermal stress during the welding process, cracks may be generated inside the weld. These cracks will weaken the strength of the welding point, thereby reducing the bearing capacity of the boom cover. In addition, during the welding process, pores may be generated inside the weld. The pores will cause the strength of the welding point to decrease, seriously affecting the service life of the boom cover.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an excavator boom cover plate, comprising an arc-shaped plate, a first straight plate and a second straight plate are fixedly connected to the two sides of the arc-shaped plate, and a reinforcement component is installed on the top of the first straight plate and the second straight plate;

[0007] The first straight plate, the second straight plate and the bottom of the curved plate are all fixedly connected with dustproof pads, the first straight plate and the second straight plate are each provided with a plurality of mounting holes, the inner walls of the plurality of mounting holes are all threadedly connected with locking bolts, and the outer walls of the plurality of locking bolts are all slidably connected with first gaskets.

[0008] The utility model is further configured as follows: the arc-shaped plate, the first straight plate and the second straight plate are all made of high-strength wear-resistant steel.

[0009] Through the above technical solution, high-strength wear-resistant steel has excellent wear resistance and can maintain a long service life in harsh excavation environments. This material has high yield strength and tensile strength and can withstand the impact and load of the excavator when working. High-strength wear-resistant steel can be customized according to the requirements of different excavator models and working environments, and can meet the requirements of boom covers of different sizes and shapes.

[0010] The utility model is further configured as follows: the arc-shaped plate, the first straight plate and the second straight plate are all integrated structures.

[0011] Through the above technical solution, the one-piece structure can provide better overall rigidity, making the boom cover more stable during operation. It can withstand the impact and load of the excavator during operation and prevent the cover from deformation or breakage. Compared with the spliced ​​structure, the one-piece structure can reduce the connection points of the material and reduce the risk of stress concentration, thereby reducing fatigue damage to the material and extending the service life. The one-piece structure can reduce the gaps and gaps between components, effectively reducing the possibility of wear and soil accumulation, and improving the wear resistance of the boom cover.

[0012] The utility model is further configured as follows: the reinforcement component includes a plurality of fixing sleeves slidably connected to the outer wall of the locking bolt, the outer walls of the plurality of fixing sleeves are fixedly connected to two mounting plates, the bottoms of the plurality of mounting plates are fixedly connected to shock-absorbing pads, the plurality of mounting plates and shock-absorbing pads are provided with fixing holes, the tops of the first straight plate and the second straight plate are fixedly connected to a plurality of threaded rods, the outer walls of the plurality of threaded rods are slidably connected to second gaskets, and the tops of the plurality of second gaskets are provided with locking nuts.

[0013] Through the above technical solution, the mounting plate and the shock-absorbing pad are first slidably connected to the corresponding threaded rod respectively, and then the fixing sleeve is aligned with the top of the locking bolt so that the fixing sleeve can be accurately inserted into the locking bolt, and then the second gasket is slidably connected to the threaded rod, and finally the locking nut is threaded into the outer wall of the threaded rod until the bottom of the locking nut is tightly fitted with the second gasket, thereby achieving the anti-loosening effect.

[0014] The utility model is further configured as follows: a plurality of the fixing sleeves are provided with limiting grooves at the bottom, and a plurality of the locking bolts are fitted with the inner walls of the limiting grooves at the tops.

[0015] Through the above technical solution, by fitting the top of the locking bolt with the inner wall of the limiting groove, the locking bolt can be effectively prevented from loosening. The limiting groove can provide additional support and limiting effects to keep the locking bolt stable. The presence of the limiting groove can also increase the strength of the connection. Because the loosening of the locking bolt may cause failure of the connection, by limiting the movement range of the bolt, the stability and firmness of the connection can be ensured.

[0016] The utility model is further configured as follows: a plurality of the mounting plates and the shock-absorbing pads are provided with fixing holes, and a plurality of the threaded rods are slidably connected to the inner walls of the corresponding fixing holes.

[0017] Through the above technical solution, due to the sliding connection characteristics of the threaded rod, it can be easily adjusted and disassembled. By rotating the locking nut, the distance or tightness between the connecting parts can be changed to meet different needs. When adjustment or replacement is required, it is only necessary to loosen the locking nut. The design of the fixing hole simplifies the installation of the mounting plate and the shock-absorbing pad. It is only necessary to slide the mounting plate and the shock-absorbing pad into the threaded rod, and then adjust the tightness by rotating the locking nut to complete the installation.

[0018] The utility model is further configured as follows: the plurality of shock-absorbing pads are tightly fitted to the tops of the first straight plate and the second straight plate, and the plurality of shock-absorbing pads are made of rubber material.

[0019] Through the above technical solution, the rubber material has good elasticity and shock absorption performance, which can effectively reduce the transmission of external impact or vibration to the straight board. The presence of the shock-absorbing pad can help alleviate the vibration and noise generated by the machine or equipment during operation, improve the overall stability and comfort, and effectively prevent the locking nut from loosening.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The utility model sets a fixing assembly. First, the top of the locking bolt fits with the inner wall of the limiting groove, which can effectively prevent the locking bolt from loosening and ensure the stability and firmness of the connection. Due to the sliding connection characteristics of the threaded rod, it can be easily adjusted and disassembled. By rotating the locking nut, the distance or tightness between the connecting parts can be changed to meet different needs. When adjustment or replacement is required, only the locking nut needs to be loosened, and destructive disassembly is not required, saving time and energy.

[0022] 2. The utility model can effectively absorb vibration and impact force by arranging shock-absorbing pads, thereby reducing the risk of bolt loosening and improving equipment reliability, and can also effectively reduce the risk of accidents and ensure the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the appearance diagram of the utility model;

[0024] Figure 2 It is a top view of the utility model;

[0025] Figure 3 It is a cross-sectional view of the utility model;

[0026] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0027] In the figure: 1, curved plate; 2, first straight plate; 3, second straight plate; 4, reinforcement assembly; 401, fixing sleeve; 402, mounting plate; 403, shock-absorbing pad; 404, fixing hole; 405, threaded rod; 406, second gasket; 407, locking nut; 5, dustproof pad; 6, mounting hole; 7, locking bolt; 8, first gasket. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1 - Figure 4 , an excavator boom cover, comprising an arc plate 1, a first straight plate 2 and a second straight plate 3 are fixedly connected on both sides of the arc plate 1, the arc plate 1, the first straight plate 2 and the second straight plate 3 are all made of high-strength wear-resistant steel; the high-strength wear-resistant steel has excellent wear resistance and can maintain a long service life in a harsh excavation environment. This material has high yield strength and tensile strength and can withstand the impact and load when the excavator is working. The high-strength wear-resistant steel can be customized according to the requirements of different excavator models and working environments, and can meet the requirements of boom covers of different sizes and shapes. The arc plate 1, the first straight plate 2 and the second straight plate 3 are all integrated structures; the integrated structure can provide better overall rigidity, making the boom cover plate more stable during operation, and it can withstand the impact and load of the excavator during operation to prevent the cover plate from being deformed or broken. Compared with the spliced ​​structure, the integrated structure can reduce the connection points of the material, reduce the risk of stress concentration, thereby reducing fatigue damage to the material and extending the service life. In addition, the integrated structure can reduce the gaps and gaps between the components, effectively reducing the possibility of wear and soil accumulation, and improving the wear resistance of the boom cover plate.

[0030] like Figure 3 and Figure 4As shown, the top of the first straight plate 2 and the second straight plate 3 are both installed with a reinforcement component 4, and the reinforcement component 4 includes a plurality of fixing sleeves 401 slidably connected to the outer wall of the locking bolt 7, the outer walls of the plurality of fixing sleeves 401 are fixedly connected to two mounting plates 402, the bottoms of the plurality of mounting plates 402 are fixedly connected to shock-absorbing pads 403, and the plurality of mounting plates 402 and the shock-absorbing pads 403 are both provided with fixing holes 404, the tops of the first straight plate 2 and the second straight plate 3 are both fixedly connected to a plurality of threaded rods 405, the outer walls of the plurality of threaded rods 405 are both slidably connected to second gaskets 406, and the tops of the plurality of second gaskets 406 are all provided with locking nuts 407; firstly, the mounting plates 402 and the shock-absorbing pads 403 are respectively slidably connected to the corresponding threaded rods 405, and then the fixing sleeves 401 are aligned with the tops of the locking bolts 7 so that the fixing sleeves 401 can The locking bolt 7 is inserted accurately and then the second gasket 406 is slidably connected to the threaded rod 405, and finally the locking nut 407 is threadedly connected to the outer wall of the threaded rod 405 until the bottom of the locking nut 407 is tightly fitted with the second gasket 406, so that the anti-loosening effect can be achieved. The bottoms of multiple fixing sleeves 401 are provided with limiting grooves, and the tops of multiple locking bolts 7 are matched with the inner walls of the limiting grooves; by matching the tops of the locking bolts 7 with the inner walls of the limiting grooves, the loosening of the locking bolts 7 can be effectively prevented, and the limiting grooves can provide additional support and limiting effects to keep the locking bolts 7 stable, and the existence of the limiting grooves can also increase the strength of the connection, because the loosening of the locking bolts 7 may lead to the failure of the connection, and by limiting the movement range of the bolts, the stability and firmness of the connection can be ensured;

[0031] like Figure 3 and Figure 4As shown, multiple mounting plates 402 and shock-absorbing pads 403 are provided with fixing holes 404, and multiple threaded rods 405 are slidably connected to the corresponding inner walls of the fixing holes 404; due to the sliding connection characteristics of the threaded rods 405, they can be easily adjusted and disassembled, and the distance or tightness between the connecting parts can be changed by rotating the locking nut 407 to meet different needs. When adjustment or replacement is required, it is only necessary to loosen the locking nut 407. The design of the fixing holes 404 simplifies the installation of the mounting plates 402 and the shock-absorbing pads 403. It is only necessary to slide the mounting plates 402 and the shock-absorbing pads 403 into the threaded rods 405, and then adjust the tightness by rotating the locking nut 407 to complete the installation. 3 are tightly fitted with the tops of the first straight plate 2 and the second straight plate 3, and multiple shock-absorbing pads 403 are made of rubber material; the rubber material has good elasticity and shock absorption performance, and can effectively reduce the transmission of external impact or vibration to the straight plate. The existence of the shock-absorbing pad 403 can help alleviate the vibration and noise generated by the machine or equipment during operation, improve the overall stability and comfort, and can effectively prevent the locking nut 407 from loosening. The bottoms of the first straight plate 2, the second straight plate 3 and the arc plate 1 are fixedly connected with dustproof pads 5, and the first straight plate 2 and the second straight plate 3 are each provided with a plurality of mounting holes 6, the inner walls of the plurality of mounting holes 6 are threadedly connected with locking bolts 7, and the outer walls of the plurality of locking bolts 7 are slidably connected with first gaskets 8.

[0032] When the utility model is in use, the locking bolt 7 is firstly threadedly connected to the upper arm, and then the mounting plate 402 and the shock-absorbing pad 403 are respectively slidably connected to the corresponding threaded rod 405, and then the fixing sleeve 401 is aligned with the top of the locking bolt 7, so that the fixing sleeve 401 can be accurately inserted into the locking bolt 7, and then the second gasket 406 is slidably connected to the threaded rod 405, and finally the locking nut 407 is threadedly connected to the outer wall of the threaded rod 405 until the bottom of the locking nut 407 is tightly fitted with the second gasket 406, so as to achieve the effect of preventing loosening.

[0033] 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. An excavator boom cover plate, comprising an arc-shaped plate (1), characterized in that: The first straight plate (2) and the second straight plate (3) are respectively fixedly connected to the two sides of the arc-shaped plate (1), and the tops of the first straight plate (2) and the second straight plate (3) are both installed with reinforcement components (4); The first straight plate (2), the second straight plate (3) and the bottom of the curved plate (1) are all fixedly connected with dustproof pads (5); the first straight plate (2) and the second straight plate (3) are each provided with a plurality of mounting holes (6); the inner walls of the plurality of mounting holes (6) are each threadedly connected with locking bolts (7); and the outer walls of the plurality of locking bolts (7) are each slidably connected with first gaskets (8).

2. The excavator boom cover according to claim 1, characterized in that: The arc-shaped plate (1), the first straight plate (2) and the second straight plate (3) are all made of high-carbon steel.

3. The excavator boom cover according to claim 1, characterized in that: The arc-shaped plate (1), the first straight plate (2) and the second straight plate (3) are all integral structures.

4. The excavator boom cover according to claim 1, characterized in that: The reinforcement assembly (4) comprises a plurality of fixing sleeves (401) slidably connected to the outer wall of the locking bolt (7); the outer walls of the plurality of fixing sleeves (401) are fixedly connected to two mounting plates (402); the bottoms of the plurality of groups of mounting plates (402) are fixedly connected to shock-absorbing pads (403); the plurality of groups of mounting plates (402) and shock-absorbing pads (403) are provided with fixing holes (404); the tops of the first straight plate (2) and the second straight plate (3) are fixedly connected to a plurality of threaded rods (405); the outer walls of the plurality of threaded rods (405) are slidably connected to second gaskets (406); the tops of the plurality of second gaskets (406) are provided with locking nuts (407).

5. The excavator boom cover according to claim 4, characterized in that: The bottoms of the plurality of fixing sleeves (401) are each provided with a limiting groove, and the tops of the plurality of locking bolts (7) are each fitted with the inner wall of the limiting groove.

6. The excavator boom cover according to claim 4, characterized in that: A plurality of the mounting plates (402) and the shock-absorbing pads (403) are each provided with a fixing hole (404), and a plurality of the threaded rods (405) are each slidably connected to the inner walls of the corresponding fixing holes (404).

7. The excavator boom cover according to claim 6, characterized in that: The plurality of shock-absorbing pads (403) are all tightly fitted to the tops of the first straight plate (2) and the second straight plate (3), and the plurality of shock-absorbing pads (403) are all made of rubber material.

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