Large arm structure for heavy industry mechanical equipment

Abstract

The utility model belongs to the technical field of heavy industry machinery, and particularly relates to a big arm structure for heavy industry mechanical equipment, which comprises a big arm, a rotating shaft II is arranged on the left side of the big arm, the big arm is rotatably connected to the outer side wall of the rotating shaft II, a small arm is rotatably connected to the outer side wall of the rotating shaft II, and a rotating shaft I is arranged on the left side of the small arm. And the small arm is rotationally connected to the outer side wall of the first rotating shaft, an excavating bucket is rotationally connected to the outer side wall of the first rotating shaft, a plurality of excavating convex teeth are arranged at the bottom of the excavating bucket, a fixing plate is fixedly connected to the outer side wall of the large arm, and an air cylinder is fixedly connected to the top of the fixing plate. The transmission supporting rod is vertically and upwards moved through the air cylinder, the lock chain is wound around the second winding barrel to tighten the lock chain when the lock chain is stretched, upward force is applied to the small arm through transmission of the lock chain to the lock catch, smaller force can be used when the large arm lifts the small arm under the normal condition, and therefore impact on the large arm is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy machinery, in particular to a large arm structure for heavy machinery equipment. Background Art

[0002] In the field of heavy machinery, boom structures are usually used for heavy work such as handling, excavating, loading, and lifting.

[0003] An excavator is a common piece of heavy machinery. Its boom structure is used to support the bucket and dipper arm to achieve excavation and earthmoving operations. When working, the boom is generally used to steer and exert force to control the forearm, and then perform excavation work through the bucket. If hard objects are dug up during excavation, the boom may be damaged to a certain extent due to the unidirectional downward force exerted by the forearm.

[0004] In order to solve the above problems, we proposed a boom structure for heavy industrial machinery equipment. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the background technology and to propose a boom structure for heavy industrial machinery equipment.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a large arm structure for heavy industrial machinery equipment, including a large arm, a second rotating shaft is provided on the left side of the large arm, and the large arm is rotatably connected to the outer side wall of the second rotating shaft, the outer side wall of the second rotating shaft is rotatably connected to a small arm, a first rotating shaft is provided on the left side of the small arm, and the rotation of the small arm is connected to the outer side wall of the first rotating shaft, the outer side wall of the first rotating shaft is rotatably connected to an excavating bucket, the bottom of the excavating bucket is provided with a plurality of excavating convex teeth, the outer side wall of the large arm is fixedly connected to a fixing plate, the top of the fixing plate The top of the large arm is fixedly connected to the fixing rod, and the top of the fixing rod is provided with a notch 2, and the inner side wall of the notch 2 is rotatably connected to the winding drum 1. The top of the small arm is fixedly connected to the lock buckle, and the outer side wall of the lock buckle is fixedly linked to the chain, and the chain is respectively wound around the outer side walls of the winding drum 2 and the winding drum 1, and is fixedly connected to the outer side wall of the winding drum 1.

[0007] In the above-mentioned boom structure for heavy industrial machinery, the excavator bucket is provided with a plurality of filter ports, the bottom of the boom is provided with a groove, and the left and right side walls of the groove are both provided with connection holes.

[0008] In the above-mentioned boom structure for heavy industrial machinery, a through hole is provided on the outer side of the forearm, and the through hole extends to the left and right sides along the forearm and penetrates the left and right side walls of the forearm.

[0009] In the above-mentioned boom structure for heavy industrial machinery, the plurality of excavating teeth are evenly arranged at the bottom of the excavating bucket with equal spacing, and the locking buckle and the fixing rod are located in the same horizontal plane.

[0010] In the above-mentioned boom structure for heavy industrial machinery, a plurality of filter ports are evenly arranged on the outside of the excavator bucket.

[0011] In the above-mentioned boom structure for heavy industrial machinery, the left extension hole of the through hole extends to the right side of the first rotating shaft, and the right extension hole of the through hole extends to the left side of the second rotating shaft.

[0012] Compared with the existing technology, the advantages of this boom structure for heavy industrial machinery equipment are:

[0013] The utility model uses a cylinder to move the transmission support rod vertically upward. When the chain is stretched, the chain is wrapped around the winding cylinder to tighten the chain. The chain transmits the power to the lock buckle to apply an upward force to the forearm, so that when the upper arm lifts the forearm, a smaller force than in normal circumstances is used to lift it, thereby reducing the impact on the upper arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a large arm structure for heavy industrial machinery equipment proposed in the utility model;

[0015] Figure 2 This is a front cross-sectional view of a large arm structure for heavy industrial machinery equipment proposed in the utility model;

[0016] Figure 3 This is a top view of a large arm structure for heavy industrial machinery equipment proposed by the utility model.

[0017] In the figure: 1 upper arm, 2 lower arm, 3 excavating bucket, 4 filter port, 5 rotating shaft 1, 6 excavating cam, 7 chain, 8 rotating shaft 2, 9 fixing plate, 10 cylinder, 11 transmission support rod, 12 winding cylinder 1, 13 winding cylinder 2, 14 connecting hole, 15 fixing rod, 16 through hole, 17 locking buckle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-Figure 3A boom structure for heavy industrial machinery includes a boom 1, a rotating shaft 2 8 is provided on the left side of the boom 1, and the boom 1 is rotatably connected to the outer wall of the rotating shaft 2 8, the outer wall of the rotating shaft 2 8 is rotatably connected to a small arm 2, a rotating shaft 1 5 is provided on the left side of the small arm 2, and the rotation of the small arm 2 is connected to the outer wall of the rotating shaft 1 5, the outer wall of the rotating shaft 1 5 is rotatably connected to an excavating bucket 3, the bottom of the excavating bucket 3 is provided with a plurality of excavating convex teeth 6, the outer wall of the boom 1 is fixedly connected to a fixing plate 9, and the top of the fixing plate 9 is fixedly connected to a cylinder 1 0, the driving end of the cylinder 10 is fixedly connected to a transmission support rod 11, the top of the transmission support rod 11 is provided with a notch 1, the inner side wall of the notch 1 is rotatably connected to a winding cylinder 12, the top of the big arm is fixedly connected to a fixing rod 15, the top of the fixing rod 15 is provided with a notch 2, the inner side wall of the notch 2 is rotatably connected to a winding cylinder 12, the top of the small arm 2 is fixedly connected to a lock buckle 17, the outer side wall of the lock buckle 17 is fixedly linked to a chain 7, the chain 7 is respectively wound around the outer side walls of the winding cylinder 2 13 and the winding cylinder 1, and is connected to the winding cylinder The outer wall of the excavator 12 is fixedly connected, the excavator bucket 3 is provided with multiple filter ports 4, the bottom of the arm 1 is provided with a groove, the left and right side walls of the groove are provided with connection holes 14, multiple excavation convex teeth 6 are evenly arranged at the bottom of the excavator bucket 3, and the spacing is equal, the lock 17 and the fixing rod 15 are located at the same horizontal plane, multiple filter ports 4 are evenly arranged on the outside of the excavator bucket 3, the driving end of the excavator is connected to the arm 1 through the connection hole, when the excavator bucket 3 excavates the moist soil, the water inside the soil can fall off through the filter port 4, this In this way, when digging the soil, the excavated soil will not become more moist. The excavating convex teeth 6 can dig with better force, speed up the digging speed, and make the transmission support rod 11 move vertically upward through the cylinder 10. When the chain 7 is stretched, the chain 7 is wrapped around the winding cylinder 2 13 to tighten the chain 1. The chain 7 is transmitted to the lock buckle 17 to apply an upward force to the forearm 2, so that when the upper arm 1 lifts the lower arm 2, it will use less force than when lifting it normally. If a hard object is dug, the impact on the upper arm 1 will be reduced.

[0020] A through-hole 16 is provided on the outside of the forearm 2, and the through-hole 16 extends to the left and right sides along the forearm 2 and penetrates the left and right side walls of the forearm 2. The left extension hole of the through-hole 16 extends to the right side of the rotating shaft 5, and the right extension hole of the through-hole 16 extends to the left side of the rotating shaft 2 8. When the upper arm 1 and the forearm 2 have been used for a period of time and the joint connection needs to be lubricated, the personnel pours lubricating oil into the through-hole 16 and then starts the upper arm 1 to move, thereby speeding up the movement time of the lubricating oil. When the lubricating oil contacts the rotating shaft 1 5 and the rotating shaft 2 8, a lubricating effect is produced, thereby increasing the service life of the device.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boom structure for heavy machinery equipment, comprising a boom (1), characterized in that: The left side of the upper arm (1) is provided with a second rotating shaft (8), and the upper arm (1) is rotatably connected to the outer side wall of the second rotating shaft (8), the outer side wall of the second rotating shaft (8) is rotatably connected to the lower arm (2), the left side of the lower arm (2) is provided with a first rotating shaft (5), and the lower arm (2) is rotatably connected to the outer side wall of the first rotating shaft (5), the outer side wall of the first rotating shaft (5) is rotatably connected to an excavating bucket (3), the bottom of the excavating bucket (3) is provided with a plurality of excavating convex teeth (6), the outer side wall of the upper arm (1) is fixedly connected to a fixing plate (9), the top of the fixing plate (9) is fixedly connected to a cylinder (10), the driving end of the cylinder (10) is fixedly connected to the upper side wall of the upper arm (1). The upper arm (2) is fixedly connected with a transmission support rod (11), the top of the transmission support rod (11) is provided with a notch 1, the inner side wall of the notch 1 is rotatably connected with a winding drum 1 (12), the top of the upper arm is fixedly connected with a fixing rod (15), the top of the fixing rod (15) is provided with a notch 2, the inner side wall of the notch 2 is rotatably connected with a winding drum 1 (12), the top of the lower arm (2) is fixedly connected with a lock buckle (17), the outer side wall of the lock buckle (17) is fixedly linked with a chain (7), the chain (7) is respectively wound around the outer side walls of the winding drum 2 (13) and the winding drum 1, and is fixedly connected to the outer side wall of the winding drum 1 (12).

2. A large arm structure for heavy machinery equipment according to claim 1, characterized in that: The excavating bucket (3) is provided with a plurality of filter ports (4), the bottom of the large arm (1) is provided with a groove, and the left and right side walls of the groove are both provided with connection holes (14).

3. The boom structure for heavy machinery equipment according to claim 1, characterized in that: A through hole (16) is provided on the outer side of the forearm (2), and the through hole (16) extends along the forearm (2) to the left and right sides and penetrates the left and right side walls of the forearm (2).

4. The boom structure for heavy industrial machinery equipment according to claim 1, characterized in that: The plurality of excavating teeth (6) are evenly arranged at the bottom of the excavating bucket (3) with equal spacing, and the locking buckle (17) and the fixing rod (15) are located at the same horizontal plane.

5. The boom structure for heavy machinery equipment according to claim 2, characterized in that: The plurality of filter ports (4) are evenly arranged on the outside of the excavating bucket (3).

6. The boom structure for heavy machinery equipment according to claim 3, characterized in that: The left extension hole of the through hole (16) extends to the right side of the first rotating shaft (5), and the right extension hole of the through hole (16) extends to the left side of the second rotating shaft (8).

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