Tunnel excavator

Abstract

The utility model relates to a tunnel excavator which comprises an excavator platform, track walking mechanisms are arranged on the front side and the rear side of the excavator platform respectively, a first movable arm capable of swinging longitudinally is arranged on the excavator platform, and a swinging mechanism capable of swinging transversely is installed at the tail end of the first movable arm. And a second movable arm capable of longitudinally swinging is mounted at the tail end of the swinging mechanism. The tunnel excavator is less limited by tunnel space and can efficiently work in a tunnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel excavator. BACKGROUND

[0002] At present, the transfer, loading and unloading of stone in the tunnel are mainly undertaken by various loaders, but the efficiency is low, and the operation of the excavator is rapid and flexible. The small and medium tonnage excavator has small size of the machine body and the boom arm, and can realize basic operation actions such as excavation and rotation in the tunnel operation, but due to the tonnage and bucket capacity limitation, the operation efficiency is extremely low, and the operation condition of the stone and hard soil layer cannot be met, the structural member is prone to fracture failure, and the use cost is high. Therefore, the small and medium tonnage excavator is difficult to be applied to the tunnel operation condition. The medium and large tonnage excavator can meet the operation condition of the stone and hard soil layer in the tunnel operation, and the shovel capacity can also meet the efficiency requirement, but due to the limitation of the tunnel space, the size of the machine body and the working device affects the rotation operation action in the operation, and only the simple forward and backward reciprocating operation can be realized, so the operation efficiency is low. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a tunnel excavator.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a tunnel excavator, which comprises an excavator platform, track walking mechanisms are arranged on the front and rear sides of the excavator platform, a first movable arm capable of longitudinal swinging is arranged on the excavator platform, a swinging mechanism capable of transverse swinging is installed at the end of the first movable arm, and a second movable arm capable of longitudinal swinging is installed at the end of the swinging mechanism.

[0005] Preferably, the swinging mechanism comprises a first small arm and a second small arm, the first longitudinal shaft is arranged between the front end of the first small arm and the end of the first movable arm for longitudinal articulation, a transverse shaft is arranged between the end of the first small arm and the front end of the second small arm for transverse articulation, and the second longitudinal shaft is arranged between the end of the second small arm and the second movable arm for longitudinal articulation.

[0006] Preferably, a transverse hydraulic cylinder is installed on the first small arm, and the piston end of the transverse hydraulic cylinder is connected with the second small arm.

[0007] Preferably, track walking mechanisms are arranged on the two sides of the excavator platform.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a tunnel excavator, which is provided with a transversely swinging swinging mechanism between the first movable arm and the second movable arm, can control the transverse swinging of the second movable arm in the working process, makes the tunnel space limitation small, and can work in the tunnel with high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic view of the embodiment of the utility model.

[0010] Figure 2 It is a swing direction state reference view of the embodiment of the utility model.

[0011] Figure 3 It is a use state reference view of the embodiment of the utility model.

[0012] Mark in the drawing: 1, excavator platform, 2, track walking mechanism, 3, first swing arm, 4, second swing arm, 5, first small arm, 6, second small arm, 7, transverse hydraulic cylinder, 8, crawler walking mechanism. DETAILED DESCRIPTION

[0013] In order to let the above-mentioned features and advantages of the utility model more obvious and easy to understand, the following specific examples are raised, and the detailed description is as follows in cooperation with the drawings.

[0014] As Figure 1 As shown in Figure 3, a tunnel excavator, comprising excavator platform 1, the front and rear sides of the excavator platform 1 are provided with track walking mechanism 2, the excavator platform 1 is provided with first swing arm 3 that can swing longitudinally, the end of the first swing arm 3 is installed with swing mechanism that can swing transversely, the end of the swing mechanism is installed with second swing arm 4 that can swing longitudinally. The end of the second swing arm 4 is installed with a rotatably arranged excavator bucket, and the swing mechanism cooperates with the excavator bucket for use, which facilitates the transverse excavation work of the excavator in the narrow tunnel.

[0015] In the use process, the first swing arm 3 and the second swing arm 4 are controlled to swing through the respective longitudinal hydraulic cylinders.

[0016] In the embodiment, the swing mechanism comprises first small arm 5 and second small arm 6, the front end of the first small arm 5 and the end of the first swing arm 3 are longitudinally hinged through first longitudinal shaft, the end of the first small arm 5 and the front end of the second small arm 6 are hinged transversely through a transverse shaft, and the end of the second small arm 6 and the second swing arm 4 are longitudinally hinged through second longitudinal shaft.

[0017] In the embodiment, a transverse hydraulic cylinder 7 is installed on the first small arm 5, and the piston end of the transverse hydraulic cylinder 7 is connected with the second small arm 6.

[0018] In the embodiment, the two sides of the excavator platform 1 are provided with crawler walking mechanism 8.

[0019] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any modification, equivalent change or modification of the above embodiments made by any person skilled in the art without departing from the technical solution of the present application, and in accordance with the technical essence of the present application, shall fall within the scope of the present application.

Claims

1. A tunnel excavator, characterized by: The excavator platform is provided with track walking mechanisms on both sides thereof, a first movable arm longitudinally oscillating is arranged on the excavator platform, a swing mechanism laterally oscillating is arranged at the end of the first movable arm, and a second movable arm longitudinally oscillating is arranged at the end of the swing mechanism.

2. The tunneling machine of claim 1, wherein: The swing mechanism comprises a first small arm and a second small arm, the front end of the first small arm and the end of the first movable arm are longitudinally hinged through a first longitudinal shaft, the end of the first small arm and the front end of the second small arm are laterally hinged through a lateral shaft, and the end of the second small arm and the second movable arm are longitudinally hinged through a second longitudinal shaft.

3. The tunneling machine of claim 1, wherein: A lateral hydraulic cylinder is arranged on the first small arm, and the piston end of the lateral hydraulic cylinder is connected with the second small arm.

4. The tunneling machine of claim 1, wherein: Track walking mechanisms are arranged on both sides of the excavator platform.

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