Anti-fatigue bucket rod structure for hydraulic excavator

Abstract

The utility model relates to the technical field of hydraulic excavators, discloses an anti-fatigue bucket rod structure for a hydraulic excavator, and solves the problems that when an existing anti-fatigue bucket rod for the hydraulic excavator is used for maintaining the surface of the bucket rod, gaps among plates cannot be accurately maintained, so that a lubricating agent or oil is wasted, and the service life of the bucket rod is prolonged. The anti-fatigue bucket rod structure for the hydraulic excavator comprises two sets of side plates, and a top plate and a bottom plate are fixedly connected between the two sets of side plates. The upper surface of the top plate and the lower surface of the bottom plate are fixedly connected with fixing mechanisms used for fixing the distance between the top plate and the side plate and the distance between the bottom plate and the side plate and are fixedly connected with oil adding mechanisms used for adding lubricating oil into gaps. The effect that gaps between the plates can be accurately maintained when the surface of the anti-fatigue bucket rod for the hydraulic excavator is maintained is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic excavators, in particular to an anti-fatigue bucket arm structure for hydraulic excavators. Background Art

[0002] A hydraulic excavator is a type of engineering machinery that uses hydraulic technology to drive various excavation actions. The working principle of a hydraulic excavator is to drive the hydraulic cylinder through the liquid pressure generated by the hydraulic pump, thereby driving the boom, dipper and bucket to perform excavation work. The boom of a hydraulic excavator is generally a left-right symmetrical, equal-width, straight, integral, closed box-type welded component. It is hinged to the upper end of the boom, and the dipper cylinder is installed on the upper plane of the boom beam. By changing the stroke of the dipper cylinder, the dipper can be rotated around the hinge point at the upper end of the boom. This structural form enables the excavator to flexibly adjust the angle and position of the dipper according to different work requirements, thereby achieving excavation tasks of different shapes and depths. Hydraulic excavators usually need to work under various complex and harsh environmental conditions, such as mines, construction sites, etc. In these places, the boom not only bears huge digging force, but also has to deal with the unevenness and hardness changes of materials such as soil and rock. Such changes may cause the boom to be repeatedly impacted and vibrated during operation, thereby causing fatigue. In order to improve the anti-fatigue performance of the boom, it is generally necessary to perform some protective measures such as material optimization, surface treatment, lubrication and maintenance on the boom. The existing anti-fatigue booms for hydraulic excavators cannot accurately maintain the gaps between the plates when maintaining the surface of the boom, resulting in a waste of lubricants or oil, and may cause certain damage and erosion to the boom. Utility Model Content

[0003] The utility model aims to provide an anti-fatigue boom structure for a hydraulic excavator. The device is used to work, thereby solving the problem that the existing anti-fatigue boom for a hydraulic excavator cannot accurately maintain the gaps between the various plates when maintaining the boom surface, resulting in waste of lubricant or oil, and may cause certain damage and erosion to the boom.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-fatigue bucket arm structure for a hydraulic excavator, comprising side plates, the side plates are provided in two groups, a top plate and a bottom plate are fixedly connected between the two groups of side plates, the top plate is located above the bottom plate, a lower ear plate is fixedly connected to the upper surface of the top plate, and a rear ear plate is fixedly connected to the lower surface of the bottom plate, a shock absorbing mechanism for reducing vibration is movably connected between the two groups of side plates, a fixing mechanism for fixing the distance between the top plate and the bottom plate and the side plates is fixedly connected to the upper surface of the top plate and the lower surface of the bottom plate, and an oiling mechanism for adding lubricating oil to the gap is fixedly connected to the upper surface of the top plate and the lower surface of the bottom plate;

[0005] The oil adding mechanism includes a fixing strip A fixedly connected to the upper surface of the top plate, a fixing strip B fixedly connected to the upper surface of the side plate, a fixing block A fixedly connected to one end of the fixing strip B, an electric telescopic rod passing through one side of the fixing block A, the electric telescopic rod is located between the fixing strip A and the fixing strip B, one end of the electric telescopic rod is fixedly connected to a box body, a box cover is movably connected to the upper surface of the box body, a feed pipe is fixedly connected to the upper surface of the box cover, the inside of the feed pipe is connected to the inside of the box body, a discharge port is opened on the lower surface of the box body, a scraper and a brush plate are fixedly connected to the lower surface of the box, the discharge port is located between the scraper and the brush plate, the upper surface of the top plate is fixedly connected to an oil tank, an elastic hose is fixedly connected to the oil outlet of the oil tank, and one end of the elastic hose is fixedly connected to one end of the feed pipe.

[0006] Preferably, the shock absorbing mechanism includes a fixed column arranged between the two groups of side plates, and the outer surface of the fixed column is fixedly connected to a shock absorbing plate A, and four groups of shock absorbing plates A are arranged, and one side of the four groups of shock absorbing plates A is fixedly connected to a spring, one end of the spring is fixedly connected to a shock absorbing plate B, and one side of the shock absorbing plate B is fixedly connected to a rubber seal, wherein two groups of the rubber seals are in contact with one side of the side plate on one side and in contact with the upper surface of the bottom plate on the other side, and two groups of the rubber seals are in contact with one side of the side plate on one side and in contact with the lower surface of the top plate on the other side.

[0007] Preferably, a fixing plate A is fixedly connected between the top plate and the bottom plate, a nut is fixedly connected to one end of the fixing column, a bolt A is threadedly connected to one side of the fixing plate A, and the bolt A is threadedly connected to the nut.

[0008] Preferably, the fixing mechanism includes a fixing block B fixedly connected to the upper surface of the top plate and the lower surface of the bottom plate, a fixing block C fixedly connected to one side of the side plate, a bolt B threadedly connected to one side of the fixing block C, and one end of the bolt B contacts one side of the fixing block B.

[0009] Preferably, a groove is provided on the upper surface of the top plate.

[0010] Preferably, a support mechanism is fixedly connected between the two groups of side panels, and the support mechanism includes support bars A, support bars B and support bars C fixedly connected between the two groups of side panels, one side of support bar A is fixedly connected to the lower surface of the top plate, one side of support bar B and one side of support bar C are fixedly connected to the upper surface of the bottom plate, one side of support bar A is fixedly connected to a fixed plate B, one side of fixed plate B is fixedly connected to one side of support bar B, a V-shaped support plate is fixedly connected to the lower surface of fixed plate B, one side of the V-shaped support plate is fixedly connected to one side of support bar B, and the other side of the V-shaped support plate is fixedly connected to one side of support bar C.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model provides an anti-fatigue boom structure for a hydraulic excavator. When the boom is working, the oil tank transports lubricant or oil to the inside of the box cover through an elastic hose. When the gaps between the plates need to be maintained, the electric telescopic rod works to push the box body to move between the fixed strip A and the fixed strip B. After the electric telescopic rod works to push the box body so that the lower surface of the scraper cleans the gap surface, the lubricant or oil falls from the discharge port. The electric telescopic rod then pushes the box body forward to drive the brush plate forward. The brush plate can evenly apply the lubricant or oil on the gap surface, thereby achieving the effect that the anti-fatigue boom for the hydraulic excavator can accurately maintain the gaps between the plates when maintaining the boom surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The structure of the oil filling mechanism of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 4 The structure of the oil filling mechanism of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the structure of the shock absorbing mechanism of the utility model;

[0018] Figure 6 This is a schematic diagram of the support mechanism structure of the utility model.

[0019] In the figure: 1, side plate; 2, top plate; 21, groove; 3, bottom plate; 4, lower ear plate; 5, rear ear plate; 6, oil filling mechanism; 61, fixing bar A; 62, fixing bar B; 63, fixing block A; 64, electric telescopic rod; 65, box body; 651, box cover; 6511, feed pipe; 652, feed port; 653, scraper; 654, brush plate; 66, oil tank; 67, elastic hose; 7, reducer Vibration mechanism; 71. Fixed column; 72. Shock-absorbing plate A; 73. Spring; 74. Shock-absorbing plate B; 75. Rubber seal; 76. Fixed plate A; 77. Nut; 78. Bolt A; 8. Fixed mechanism; 81. Fixed block B; 82. Fixed block C; 83. Bolt B; 9. Support mechanism; 91. Support bar A; 92. Support bar B; 93. Support bar C; 94. Fixed plate B; 95. V-shaped support plate. DETAILED DESCRIPTION

[0020] 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.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 and Figure 2 A fatigue-resistant bucket arm structure for a hydraulic excavator comprises a side plate 1, wherein the side plates 1 are provided with two groups, a top plate 2 and a bottom plate 3 are fixedly connected between the two groups of side plates 1, the top plate 2 is located above the bottom plate 3, a lower ear plate 4 is fixedly connected to the upper surface of the top plate 2, and a rear ear plate 5 is fixedly connected to the lower surface of the bottom plate 3, a shock absorbing mechanism 7 for reducing vibration is movably connected between the two groups of side plates 1, a fixing mechanism 8 for fixing the distance between the top plate 2 and the bottom plate 3 and the side plate 1 is fixedly connected to the upper surface of the top plate 2 and the lower surface of the bottom plate 3, and an oiling mechanism 6 for adding lubricating oil to the gap is fixedly connected to the upper surface of the top plate 2 and the lower surface of the bottom plate 3.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Embodiment 1:

[0025] See also Figure 3 and Figure 4 The oil filling mechanism 6 includes a fixing bar A61 fixedly connected to the upper surface of the top plate 2, a fixing bar B62 fixedly connected to the upper surface of the side plate 1, a fixing block A63 fixedly connected to one end of the fixing bar B62, an electric telescopic rod 64 penetratingly connected to one side of the fixing block A63, the electric telescopic rod 64 is located between the fixing bar A61 and the fixing bar B62, one end of the electric telescopic rod 64 is fixedly connected to a box body 65, and a box cover 651 is movably connected to the upper surface of the box body 65. The upper surface of the box cover 651 A feed pipe 6511 is fixedly connected, the interior of the feed pipe 6511 is communicated with the interior of the box body 65, a feed outlet 652 is provided on the lower surface of the box body 65, a scraper 653 and a brush plate 654 are fixedly connected to the lower surface of the box body 65, the feed outlet 652 is located between the scraper 653 and the brush plate 654, an oil tank 66 is fixedly connected to the upper surface of the top plate 2, an elastic hose 67 is fixedly connected to the oil outlet of the oil tank 66, and one end of the elastic hose 67 is fixedly connected to one end of the feed pipe 6511.

[0026] Specifically, when the boom is working, the oil tank 66 transports lubricant or oil to the inside of the box cover 651 through the elastic hose 67. When the gap between the plates needs to be maintained, the electric telescopic rod 64 works to push the box body 65 to move between the fixed bar A61 and the fixed bar B62. The electric telescopic rod 64 works to push the box body 65 so that the lower surface of the scraper 653 cleans the surface of the gap. At this time, the lubricant or oil falls from the discharge port 652, and the electric telescopic rod 64 pushes the box body 65 forward to drive the brush plate 654 to move forward. The brush plate 654 can evenly apply the lubricant or oil on the surface of the gap.

[0027] Embodiment 2:

[0028] See also Figure 1-Figure 6 The shock absorbing mechanism 7 includes a fixed column 71 arranged between the two groups of side plates 1, and the outer surface of the fixed column 71 is fixedly connected to a shock absorbing plate A72, and four groups of shock absorbing plates A72 are provided. One side of the four groups of shock absorbing plates A72 is fixedly connected to a spring 73, and one end of the spring 73 is fixedly connected to a shock absorbing plate B74, and one side of the shock absorbing plate B74 is fixedly connected to a rubber seal 75, wherein one side of the two groups of rubber seals 75 is in contact with one side of the side plate 1 and the other side is in contact with the upper surface of the bottom plate 3, wherein the two groups of One side of the rubber seal 75 is in contact with one side of the side plate 1 and the other side is in contact with the lower surface of the top plate 2. The shock absorbing plate A72 is in contact with the rubber seal 75 through the spring 73 and the shock absorbing plate B74. When the boom is working, it is subjected to repeated impact and vibration due to working in a complex environment. When the boom is vibrated, the side plate 1, the bottom plate 3 and the top plate 2 are vibrated by the force. The rubber seal 75 and the shock absorbing plate B74 transmit the force to the spring 73, thereby playing a shock absorbing role on the side plate 1, the bottom plate 3 and the top plate 2.

[0029] A fixing plate A76 is fixedly connected between the top plate 2 and the bottom plate 3, a nut 77 is fixedly connected to one end of the fixing column 71, a bolt A78 is threadedly connected to one side of the fixing plate A76, the bolt A78 is threadedly connected to the nut 77, and the bolt A78 is connected to the fixing column 71 through the nut 77. When the boom is working, in order to prevent the fixing column 71 from moving inside the boom, the bolt A78 is threadedly connected to the nut 77 from one side of the fixing plate A76, thereby fixing the position of the fixing column 71.

[0030] The fixing mechanism 8 includes a fixing block B81 fixedly connected to the upper surface of the top plate 2 and the lower surface of the bottom plate 3, a fixing block C82 fixedly connected to one side of the side plate 1, a bolt B83 threadedly connected to one side of the fixing block C82, one end of the bolt B83 contacts one side of the fixing block B81, and the bolt B83 is connected to the top plate 2 and the side plate 1 through the fixing block B81 and the fixing block C82. The bolt B83 connects the top plate 2 and the side plate 1 more tightly, improves the strength and rigidity of the boom, and reduces the possibility of cracking in the gaps between the plates.

[0031] A groove 21 is provided on the upper surface of the top plate 2. The boom will be subjected to various stresses during operation. The design of the groove 21 can change the stress distribution of the boom, reduce the concentrated stress in certain areas, and thus improve the overall rigidity and strength of the boom.

[0032] A supporting mechanism 9 is fixedly connected between the two groups of side plates 1, and the supporting mechanism 9 includes a supporting bar A91, a supporting bar B92 and a supporting bar C93 fixedly connected between the two groups of side plates 1, one side of the supporting bar A91 is fixedly connected to the lower surface of the top plate 2, one side of the supporting bar B92 and one side of the supporting bar C93 are fixedly connected to the upper surface of the bottom plate 3, one side of the supporting bar A91 is fixedly connected to a fixing plate B94, one side of the fixing plate B94 is fixedly connected to one side of the supporting bar B92, a V-shaped supporting plate 95 is fixedly connected to the lower surface of the fixing plate B94, one side of the V-shaped supporting plate 95 is fixedly connected to one side of the supporting bar B92, and the other side of the V-shaped supporting plate 95 is fixedly connected to one side of the supporting bar C93, the fixing plate B94 is connected to the top plate 2 through the supporting bar A91, the V-shaped supporting plate 95 is in contact with the bottom plate 3 through the supporting bars B92 and C93, and the fixing plate B94 and the V-shaped supporting plate 95 form a triangle shape, which increases the internal supporting force of the boom, thereby improving the fatigue resistance of the boom.

[0033] Specifically, when the boom is working, the oil tank 66 delivers lubricant or oil to the inside of the box cover 651 through the elastic hose 67. When the gap between the plates needs to be maintained, the electric telescopic rod 64 works to push the box body 65 to move between the fixed bar A61 and the fixed bar B62. The electric telescopic rod 64 works to push the box body 65 so that the lower surface of the scraper 653 cleans the gap surface. At this time, the lubricant or oil falls from the discharge port 652. The electric telescopic rod 64 pushes the box body 65 forward to drive the brush plate 654 to move forward. The brush plate 654 can evenly apply the lubricant or oil on the gap surface. The damping plate A72 contacts the rubber seal 75 through the spring 73 and the damping plate B74. When the boom is working, it is subjected to repeated impacts and vibrations due to working in a complex environment. When the boom is vibrated, the side plates 1, bottom plate 3 and top plate 2 are vibrated by the force. The rubber seal 75 and the shock absorbing plate B74 transmit the force to the spring 73, thereby playing a shock absorbing role on the side plates 1, bottom plate 3 and top plate 2. The bolt B83 is connected to the top plate 2 and the side plate 1 through the fixing block B81 and the fixing block C82. The bolt B83 connects the top plate 2 and the side plate 1 more tightly, which improves the strength and rigidity of the boom and reduces the possibility of cracking in the gaps between the plates, so that the anti-fatigue boom for hydraulic excavators can achieve the effect of accurately maintaining the gaps between the plates when maintaining the surface of the boom.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An anti-fatigue arm structure for a hydraulic excavator, comprising side plates (1), the side plates (1) being provided with two groups, a top plate (2) and a bottom plate (3) being fixedly connected between the two groups of side plates (1), the top plate (2) being located above the bottom plate (3), a lower ear plate (4) being fixedly connected to the upper surface of the top plate (2), a rear ear plate (5) being fixedly connected to the lower surface of the bottom plate (3), a shock absorbing mechanism (7) for reducing vibration being movably connected between the two groups of side plates (1), a fixing mechanism (8) for fixing the distance between the top plate (2), the bottom plate (3) and the side plate (1) being fixedly connected to the upper surface of the top plate (2) and the lower surface of the bottom plate (3), and characterized in that: The upper surface of the top plate (2) and the lower surface of the bottom plate (3) are both fixedly connected with an oil adding mechanism (6) for adding lubricating oil into the gap; The oil filling mechanism (6) comprises a fixing strip A (61) fixedly connected to the upper surface of the top plate (2), a fixing strip B (62) fixedly connected to the upper surface of the side plate (1), one end of the fixing strip B (62) fixedly connected to a fixing block A (63), one side of the fixing block A (63) penetrated and connected to an electric telescopic rod (64), the electric telescopic rod (64) is located between the fixing strip A (61) and the fixing strip B (62), one end of the electric telescopic rod (64) is fixedly connected to a box body (65), the upper surface of the box body (65) is movably connected to a box cover (651), and the upper surface of the box cover (651) is A feed pipe (6511) is fixedly connected to the top surface, the interior of the feed pipe (6511) is connected to the interior of the box body (65), a feed outlet (652) is provided on the lower surface of the box body (65), a scraper (653) and a brush plate (654) are fixedly connected to the lower surface of the box body (65), the feed outlet (652) is located between the scraper (653) and the brush plate (654), an oil tank (66) is fixedly connected to the upper surface of the top plate (2), an elastic hose (67) is fixedly connected to the oil outlet of the oil tank (66), and one end of the elastic hose (67) is fixedly connected to one end of the feed pipe (6511).

2. The anti-fatigue bucket arm structure for a hydraulic excavator according to claim 1, characterized in that: The shock absorbing mechanism (7) comprises a fixed column (71) arranged between two groups of the side plates (1), the outer surface of the fixed column (71) is fixedly connected to a shock absorbing plate A (72), four groups of shock absorbing plates A (72) are arranged, one side of the four groups of shock absorbing plates A (72) are fixedly connected to a spring (73), one end of the spring (73) is fixedly connected to a shock absorbing plate B (74), one side of the shock absorbing plate B (74) is fixedly connected to a rubber seal (75), wherein one side of the two groups of rubber seals (75) is in contact with one side of the side plate (1) and the other side is in contact with the upper surface of the bottom plate (3), wherein one side of the two groups of rubber seals (75) is in contact with one side of the side plate (1) and the other side is in contact with the lower surface of the top plate (2).

3. The anti-fatigue bucket arm structure for a hydraulic excavator according to claim 2, characterized in that: A fixing plate A (76) is fixedly connected between the top plate (2) and the bottom plate (3); a nut (77) is fixedly connected to one end of the fixing column (71); a bolt A (78) is threadedly connected to one side of the fixing plate A (76); and the bolt A (78) is threadedly connected to the nut (77).

4. The anti-fatigue bucket arm structure for a hydraulic excavator according to claim 1, characterized in that: The fixing mechanism (8) comprises a fixing block B (81) fixedly connected to the upper surface of the top plate (2) and the lower surface of the bottom plate (3); a fixing block C (82) is fixedly connected to one side of the side plate (1); a bolt B (83) is threadedly connected to one side of the fixing block C (82); one end of the bolt B (83) is in contact with one side of the fixing block B (81).

5. The anti-fatigue bucket arm structure for a hydraulic excavator according to claim 1, characterized in that: The upper surface of the top plate (2) is provided with a groove (21).

6. The anti-fatigue bucket arm structure for a hydraulic excavator according to claim 1, characterized in that: A support mechanism (9) is fixedly connected between the two groups of side panels (1), and the support mechanism (9) comprises a support bar A (91), a support bar B (92) and a support bar C (93) fixedly connected between the two groups of side panels (1), one side of the support bar A (91) is fixedly connected to the lower surface of the top panel (2), one side of the support bar B (92) and one side of the support bar C (93) are fixedly connected to the upper surface of the bottom panel (3), one side of the support bar A (91) is fixedly connected to a fixed plate B (94), one side of the fixed plate B (94) is fixedly connected to one side of the support bar B (92), and the lower surface of the fixed plate B (94) is fixedly connected to a V-shaped support plate (95), one side of the V-shaped support plate (95) is fixedly connected to one side of the support bar B (92), and the other side of the V-shaped support plate (95) is fixedly connected to one side of the support bar C (93).

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