Lateral swing type large arm structure of excavator

Abstract

The utility model provides a lateral swing type big arm structure of an excavator, which relates to the technical field of big arms of excavators, and comprises a fixed block, a stabilizing device and a fixing device, the surface of the fixed block is rotatably connected with a connecting shaft, the arc surface of the connecting shaft is fixedly connected with a rotating block, and the rotating block is fixedly connected with the stabilizing device. The surface of one side of the rotating block is fixedly connected with a swing block, the surface of one side of the swing block is rotationally connected with an adjusting rod, the stabilizing device is installed on one side of the fixing block through a fixing device, the stabilizing device comprises a mounting plate, and the mounting plate is installed on the side, close to the fixing block, of the excavator through the fixing device; when the large arm side-sway structure is used, the position stability of the large arm can be better guaranteed, the limiting pressure of the adjusting rod is reduced, the situation that the adjusting rod is abnormally damaged due to the fact that the stress strength is too large is not likely to happen, the service life of the adjusting rod is prolonged, and the using effect and practicability of the large arm side-sway structure are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator big arm technical field especially relates to a kind of excavator side swing type big arm structure. BACKGROUND

[0002] The big arm side swing structure of excavator is an important combined component of excavator, which mainly provides the rotating ability of the big arm assembly, thereby improving the use effect and application range of the excavator, and better performing related construction operations.

[0003] In the use of the traditional big arm side swing structure, first, the adjusting rod on the excavator is started, the operation of the adjusting rod drives the rotation of the one side rotating block of the swing block, the rotating shaft on the rotating block rotates on the fixed block on one side of the excavator, thereby driving the rotation of the big arm structure on the rotating block, realizing the efficient use of the big arm, but in the actual use process, it is found that the start and stop of the side swing use state of the big arm is realized by the start and stop of the adjusting rod, which causes the adjusting rod to form a huge limiting pressure when the rotation angle of the big arm stops, and long-term use will cause the adjusting rod to deform and damage due to the large load pressure, affecting the normal use of the side swing structure and the normal rotation of the big arm. SUMMARY

[0004] The utility model discloses to solve the start and stop of the side swing use state of the big arm, which is realized by the start and stop of the adjusting rod, which causes the adjusting rod to form a huge limiting pressure when the rotation angle of the big arm stops, and long-term use will cause the adjusting rod to deform and damage due to the large load pressure, affecting the normal use of the side swing structure and the normal rotation of the big arm, and a kind of excavator side swing type big arm structure is proposed.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of excavator side swing type big arm structure, including fixed block, stabilizing device and fixing device, the surface of the fixed block is rotatably connected with connecting shaft, the arc surface of the connecting shaft is fixedly connected with rotating block, the one side surface of the rotating block is fixedly connected with swing block, the one side surface of the swing block is rotatably connected with adjusting rod, the stabilizing device is installed on one side of fixed block by fixing device, the stabilizing device includes mounting plate, the mounting plate is installed on the side of excavator close to fixed block by fixing device, the surface of the mounting plate is fixedly connected with electric telescopic rod, the arc surface of the rotating shaft is fixedly connected with stabilizing disc, the surface of the stabilizing disc is provided with a plurality of evenly distributed insertion holes, the output end of the electric telescopic rod is inserted with the inner wall of insertion hole.

[0006] The effect achieved by the above components is that the big arm side swing structure can better ensure the position stability of the big arm during use, reduces the limiting pressure of the adjusting rod, and is not prone to abnormal damage of the adjusting rod due to excessive force, thereby prolonging the service life of the adjusting rod and improving the use effect and practicality of the big arm side swing structure.

[0007] Preferably, the inner walls of the plurality of insertion holes are fixedly connected with reinforcing rings respectively, and the reinforcing rings are sponge rings.

[0008] The effect achieved by the above components is that the reinforcing ring is arranged, so that when the electric telescopic rod is inserted into the insertion hole, it is more stable and suitable, and gaps are not prone to occur, thereby better ensuring the position stability of the rotating block.

[0009] Preferably, a protective ring is sleeved on the arc surface of the output end of the electric telescopic rod, and the protective ring is a rubber ring.

[0010] The effect achieved by the above components is that the protective ring is arranged, so that dust and impurities are not prone to enter the interior of the electric telescopic rod during use, thereby ensuring the normal use of the electric telescopic rod.

[0011] Preferably, a reinforcing rod is fixedly connected to one side surface of the fixed block, a reinforcing groove is formed in one side of the output end of the electric telescopic rod, and the reinforcing rod is inserted into the inner wall of the reinforcing groove.

[0012] The effect achieved by the above components is that the reinforcing rod and the reinforcing groove are inserted, so that the electric telescopic rod is inserted into the insertion hole, is more stable, and is not prone to swing, thereby better ensuring the position stability of the rotating block.

[0013] Preferably, a stabilizing hole is formed in the surface of the mounting plate, a stabilizing plate is slidably connected to the inner wall of the stabilizing hole, and the stabilizing plate is fixedly connected to the arc surface of the output end of the electric telescopic rod.

[0014] The effect achieved by the above components is that the stabilizing hole and the stabilizing plate are inserted, so that the output end of the electric telescopic rod does not abnormally shake during use, thereby ensuring that it can be accurately inserted into the insertion hole.

[0015] Preferably, the fixing device comprises a mounting frame fixedly mounted on the excavator, the mounting plate is inserted into the inner wall of the mounting frame, a bolt is inserted through the surface of the mounting frame, the bolt is threadedly connected to the surface of the mounting plate, and a nut is threadedly connected to the arc surface of the bolt.

[0016] The effect achieved by the above components is that the stabilizing device can be more convenient and fast during installation and use, thereby better using the stabilizing device and facilitating the maintenance and repair of the components of the stabilizing device.

[0017] Preferably, a gasket is sleeved on the arc surface of the bolt, and the gasket abuts against the surface of the mounting frame.

[0018] The above components achieve the effect that when the bolt is mounted on the mounting frame, the bolt is more stably fitted and less likely to have a gap, thereby ensuring the stability of the bolt and reducing the likelihood of rotation loosening.

[0019] Preferably, a clamping groove is formed on each side of the surface of the mounting frame, and a clamping block is clamped on the inner wall of the clamping groove and fixedly connected to the surface of the mounting plate.

[0020] The above components achieve the effect that when the mounting plate and the mounting frame are inserted, the mounting plate and the mounting frame are more stably and firmly connected, thereby making the assembly of the electric telescopic rod more stable and improving the practicality of the fixing device.

[0021] In summary, the fixing device has the following beneficial effects:

[0022] The large-arm side swing structure can better ensure the position stability of the large arm, reduce the limiting pressure of the adjusting rod, and is less likely to be abnormally damaged due to excessive force, thereby prolonging the service life of the adjusting rod and improving the use effect and practicality of the large-arm side swing structure. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a perspective view of the fixing device;

[0024] Figure 2 FIG. 3 is a perspective view of a stabilizing device of the fixing device;

[0025] Figure 3 FIG. 4 is a side view of the fixing device; Figure 2

[0026] Figure 4 FIG. 5 is a perspective view of the fixing device.

[0027] Legend: 1, fixing block; 2, connecting shaft; 3, rotating block; 4, swinging block; 5, adjusting rod; 6, stabilizing device; 61, mounting plate; 62, electric telescopic rod; 63, stabilizing disc; 64, insertion hole; 65, reinforcing ring; 66, reinforcing rod; 67, reinforcing groove; 68, protection ring; 69, stabilizing plate; 610, stabilizing hole; 7, fixing device; 71, mounting frame; 72, bolt; 73, nut; 74, gasket; 75, clamping groove; 76, clamping block. DETAILED DESCRIPTION

[0028] Reference Figure 1 ​As shown in the figure, the embodiment discloses a side swing type boom structure of an excavator, which comprises a fixed block 1, a stabilizing device 6 and a fixing device 7, the surface of the fixed block 1 is rotationally connected with a connecting shaft 2, the arc surface of the connecting shaft 2 is fixedly connected with a rotating block 3, the surface of one side of the rotating block 3 is fixedly connected with a swing block 4, the surface of one side of the swing block 4 is rotationally connected with an adjusting rod 5, and the stabilizing device 6 is installed on one side of the fixed block 1 by means of the fixing device 7.

[0029] Referring to Figure 1 and Figure 2 and Figure 3 As shown in the figure, the embodiment discloses that the stabilizing device 6 comprises an installation plate 61, the installation plate 61 is installed on one side of the fixed block 1 of the excavator by means of the fixing device 7, the surface of the installation plate 61 is fixedly connected with an electric telescopic rod 62, the arc surface of a rotating shaft is fixedly connected with a stabilizing disc 63, the surface of the stabilizing disc 63 is provided with a plurality of evenly distributed insertion holes 64, and the output end of the electric telescopic rod 62 is inserted with the inner wall of the insertion hole 64. When the side swing structure of the excavator drives the boom to rotate, the adjusting rod 5 will operate, and then the rotating block 3 on the swing block 4 will rotate, so that the rotating shaft rotates on the fixed block 1. When the rotation stops, the electric telescopic rod 62 on the installation plate 61 is started, so that the electric telescopic rod 62 operates and extends until the output end of the electric telescopic rod 62 is inserted into the insertion hole 64 in the surface of the adjusting disc on one side of the rotating shaft. At this time, the position stability of the boom of the boom side swing structure can be better ensured when the boom side swing structure is used, the limiting pressure of the adjusting rod 5 is reduced, the adjusting rod 5 is not easy to be abnormally damaged due to the excessive strength of the force received, the service life of the adjusting rod 5 is prolonged, and the use effect and practicality of the boom side swing structure are improved.

[0030] Referring to Figure 1 and Figure 2 and Figure 3 As shown in the figure, the embodiment discloses that the inner walls of the plurality of insertion holes 64 are respectively fixedly connected with reinforcing rings 65, the reinforcing rings 65 are sponge rings, the electric telescopic rod 62 is more stably matched when being inserted into the insertion hole 64 through the arrangement of the reinforcing rings 65, and the gap is not easy to be generated, so that the position stability of the rotating block 3 is better ensured. The output end arc surface of the electric telescopic rod 62 is sleeved with a protection ring 68, the protection ring 68 is a rubber ring, and the electric telescopic rod 62 is not easy to have dust and impurities entering the inside of the electric telescopic rod 62 when being used through the arrangement of the protection ring 68, so that the normal use of the electric telescopic rod 62 is ensured.

[0031] Referring to Figure 1 and Figure 2 and Figure 3As shown, the embodiment discloses that one side surface of the fixed block 1 is fixedly connected with a reinforcing rod 66, one side of the output end of the electric telescopic rod 62 is provided with a reinforcing groove 67, the reinforcing rod 66 is inserted with the inner wall of the reinforcing groove 67, the insertion of the reinforcing rod 66 and the reinforcing groove 67 makes the electric telescopic rod 62 inserted into the insertion hole 64, so that it is more stable and not easy to swing, thereby better stabilizing the position of the rotating block 3, the surface of the mounting plate 61 is provided with a stable hole 610, the inner wall of the stable hole 610 is slidably connected with a stable plate 69, the stable plate 69 is fixedly connected with the output end arc surface of the electric telescopic rod 62, the insertion of the stable hole 610 and the stable plate 69 makes the output end of the electric telescopic rod 62 not abnormally shake during use, thereby ensuring that it can be accurately inserted into the insertion hole 64.

[0032] Referring to Figure 1 and Figure 4 As shown, the embodiment discloses that the fixing device 7 comprises a mounting frame 71 fixedly installed on the excavator, the mounting plate 61 is inserted with the inner wall of the mounting frame 71, the surface of the mounting frame 71 is inserted with a bolt 72, the surface of the mounting plate 61 is threadedly connected with the bolt 72, the arc surface of the bolt 72 is threadedly connected with a nut 73, when the fixing device 7 is used to connect and assemble the stabilizing device 6, first, the mounting plate 61 is inserted into the mounting frame 71, then the bolt 72 is inserted into the mounting frame 71, and the surface of the mounting plate 61 is threadedly connected with the bolt 72, and then the nut 73 is threadedly connected with the bolt 72, at this time, the stabilizing device 6 can be more convenient and fast during installation and use, thereby better using the stabilizing device 6, and facilitating the maintenance of the components of the stabilizing device 6.

[0033] Referring to Figure 1 and Figure 4 As shown, the embodiment discloses that the arc surface of the bolt 72 is sleeved with a gasket 74, the gasket 74 abuts with the surface of the mounting frame 71, the setting of the gasket 74 makes the bolt 72 more stably fit when installed on the mounting frame 71, and a gap is not easy to be generated, thereby ensuring the stability of the bolt 72 and not easy to rotate and loosen, the surface of the mounting frame 71 is provided with a clamping groove 75 on both sides, the inner wall of the clamping groove 75 is clamped with a clamping block 76, the clamping block 76 is fixedly connected with the surface of the mounting plate 61, the clamping of the clamping block 76 and the clamping groove 75 makes the mounting plate 61 and the mounting frame 71 more stable and firm during insertion, thereby making the assembly of the electric telescopic rod 62 more stable, and improving the practicability of the fixing device 7.

[0034] Working principle: when the excavator side swing structure in driving the arm rotation, the adjusting rod 5 will run, and then drive the rotating block 3 on the swing block 4 rotation, the rotating shaft in the fixed block 1 rotation, when the rotation stops, start the mounting plate 61 on the electric telescopic rod 62, make the electric telescopic rod 62 run extension, at the same time its output end on the stable plate 69 will slide in the mounting plate 61 on the stable hole 610, until the electric telescopic rod 62 output end inserted into the adjusting disc surface on the side of the rotating shaft hole 64, at this time the fixed block 1 on the reinforcing rod 66 will be inserted into the reinforcing groove 67 of the electric telescopic rod 62 output end, at this time the arm swing structure in use, can better guarantee the position stability of the arm, make the limiting pressure of the adjusting rod 5 reduced, not easy to cause abnormal damage of the adjusting rod 5 due to the strength of the force is too large, prolong the service life of the adjusting rod 5, improve the use effect and practicality of the arm swing structure.

[0035] When using the fixing device 7 to connect and assemble the stabilizing device 6, first insert the mounting plate 61 into the mounting frame 71, then insert the bolt 72 sleeved with the washer 74 into the mounting frame 71, and make the bolt 72 and the surface of the mounting plate 61 threadedly connected, then threadedly connect the nut 73 on the bolt 72, at this time the stabilizing device 6 can be more convenient and fast in installation and use, so as to better use the stabilizing device 6, and facilitate the maintenance and repair of the parts of the stabilizing device 6.

Claims

1. A side-shifting boom structure of a shovel, comprising a fixed block (1), a stabilizing device (6) and a fixing device (7), characterized in that: The surface of the fixed block (1) is rotatably connected with a connecting shaft (2), the circular surface of the connecting shaft (2) is fixedly connected with a rotating block (3), one side surface of the rotating block (3) is fixedly connected with a swing block (4), one side surface of the swing block (4) is rotatably connected with an adjusting rod (5), the stabilizing device (6) is installed on one side of the fixed block (1) by means of the fixing device (7), the stabilizing device (6) comprises an installation plate (61), the installation plate (61) is installed on one side of the excavator close to the fixed block (1) by means of the fixing device (7), the surface of the installation plate (61) is fixedly connected with an electric telescopic rod (62), the circular surface of the rotating shaft is fixedly connected with a stabilizing disc (63), the surface of the stabilizing disc (63) is provided with a plurality of uniformly distributed jack holes (64), and the output end of the electric telescopic rod (62) is inserted into the inner wall of the jack hole (64).

2. The excavator swing boom structure of claim 1, wherein: The inner walls of the plurality of jack holes (64) are fixedly connected with reinforcing rings (65), and the reinforcing rings (65) are sponge rings.

3. The excavator swing boom structure of claim 1, wherein: The output end of the electric telescopic rod (62) is provided with a protective ring (68), and the protective ring (68) is a rubber ring.

4. The excavator swing boom structure of claim 1, wherein: One side surface of the fixed block (1) is fixedly connected with a reinforcing rod (66), and the output end of the electric telescopic rod (62) is provided with a reinforcing groove (67), and the reinforcing rod (66) is inserted into the inner wall of the reinforcing groove (67).

5. The excavator swing boom structure of claim 1, wherein: The surface of the installation plate (61) is provided with a stabilizing hole (610), and the inner wall of the stabilizing hole (610) is slidably connected with a stabilizing plate (69), and the stabilizing plate (69) is fixedly connected with the output end of the electric telescopic rod (62).

6. The excavator swing boom structure of claim 1, wherein: The fixing device (7) comprises an installation frame (71) fixedly installed on the excavator, the installation plate (61) is inserted into the inner wall of the installation frame (71), the surface of the installation frame (71) is inserted with a bolt (72), the surface of the installation plate (61) is threadedly connected with the bolt (72), and the circular surface of the bolt (72) is threadedly connected with a nut (73).

7. The excavator swing boom structure of claim 6, wherein: The circular surface of the bolt (72) is provided with a gasket (74), and the gasket (74) abuts against the surface of the installation frame (71).

8. The excavator swing boom structure of claim 6, wherein: The surfaces of the installation frame (71) are provided with clamping grooves (75) on both sides, the inner walls of the clamping grooves (75) are clamped with clamping blocks (76), and the clamping blocks (76) are fixedly connected with the surface of the installation plate (61).

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