A discharge structure of a boom excavator

Abstract

The utility model belongs to the technical field of boom tunneling machine, concretely relates to a kind of discharging structure of boom tunneling machine, including shovel, is equipped with sweep material disc on the shovel, and sweep material disc rear is equipped with material conveying belt, and the end of shovel is equipped with sweep material device, and the sweep material device includes shaft, and the shaft is through rotating sleeve and is fixedly connected with rotating sleeve, and the shaft bottom end outer wall is connected with driven wheel.This discharging structure of boom tunneling machine, when tunneling machine operates, sweep material rod rotates under the transmission of shaft, can push the broken material scattered on the outer wall of shovel into shovel quickly, avoid broken material accumulation to affect tunneling.It is followed that sweep material disc relay transports the broken material in shovel to material conveying belt, realizes broken material efficient transfer.This double-effect cooperation significantly widens sweep material range, greatly improves the discharging efficiency of tunneling machine, effectively reduces the operation obstruction caused by broken material accumulation, effectively guarantees tunneling operation continuous, efficient.

Description

Technical Field

[0001] This utility model relates to the field of cantilever tunneling machine technology, specifically to a material discharge structure for a cantilever tunneling machine. Background Technology

[0002] A tunnel boring machine (TBM) is a modern tunneling and underground engineering excavation equipment that integrates functions such as cutting, loading, transportation, and movement. It is widely used in tunnel or roadway excavation operations in fields such as mining, railway / highway tunnels, urban subways, and water conservancy projects. Its core feature is that it achieves efficient rock breaking through a rotatable cantilever cutting head, while also possessing flexible movement and support capabilities.

[0003] Currently, most existing cantilever tunneling machines rely solely on a single sweeping disc structure for their material discharge devices, lacking the assistance of sweeping rods. This limits the sweeping range, making it difficult to quickly collect debris scattered on the outer wall of the bucket into the bucket during actual operation. Instead, the debris tends to accumulate around the tunneling machine, affecting normal equipment operation and requiring manual cleaning, thus increasing workload. If the debris accumulation problem is not resolved in time, it can lead to material discharge interruptions, reducing the continuity and overall efficiency of tunneling operations. Utility Model Content

[0004] The main objective of this invention is to provide a material discharge structure for a cantilever tunneling machine that can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model proposes a material discharge structure for a cantilever tunneling machine, including a bucket, a sweeping disc on the bucket, a conveyor belt behind the sweeping disc, and a sweeping device at the end of the bucket, the sweeping device comprising:

[0006] A rotating shaft passes through a rotating sleeve and is fixedly connected to the rotating sleeve; a driven wheel is connected to the outer wall of the bottom end of the rotating shaft.

[0007] A sweeping rod, which is hinged to a rotating sleeve.

[0008] Preferably, the driven wheel is driven by a drive belt, the drive belt is driven by a drive wheel, and the drive wheel is connected to the rotating shaft of the sweeping disc.

[0009] Preferably, the outer wall of the sweeping rod is connected to a protruding rod, which passes through the reinforcing rod and is rotatably connected to the reinforcing rod. The design of the reinforcing rod can improve the stability of the sweeping rod in sweeping.

[0010] Preferably, the end of the reinforcing rod away from the protruding rod is hinged to the outer wall of the rotating sleeve, and the outer wall of the reinforcing rod is provided with a limiting groove one and a limiting groove two.

[0011] Preferably, an elastic locking rod is provided below the reinforcing rod to limit its position.

[0012] Preferably, the included angle between the first limiting groove and the second limiting groove is 90 degrees, corresponding to the retracted and extended states of the sweeping rod, respectively.

[0013] Preferably, there are two sets of sweeping rods, which are respectively set at the front end of the bucket to increase the sweeping area of ​​the device.

[0014] This utility model provides a material discharge structure for a cantilever tunneling machine. It has the following beneficial effects:

[0015] (1) The material discharge structure of this cantilever tunneling machine allows the sweeping bar to rotate under the drive of the shaft during operation, quickly pushing the debris scattered on the outer wall of the bucket into the bucket to prevent debris accumulation from affecting tunneling. Subsequently, the sweeping disc takes over and transports the debris in the bucket to the conveyor belt, achieving efficient material transfer. This dual-effect combination significantly expands the sweeping range, greatly improves the material discharge efficiency of the tunneling machine, effectively reduces operational obstacles caused by debris accumulation, and strongly ensures continuous and efficient tunneling operations.

[0016] (2) The material discharge structure of this cantilever tunneling machine, through the cooperation of the limiting groove and the elastic clamp, allows the operator to quickly switch between the extended and retracted states simply by pulling the sweeping rod. After retraction, the space occupied by the sweeping rod is greatly reduced, which not only facilitates the transportation of the equipment between different work sites, but also facilitates the daily storage and maintenance of the equipment. At the same time, the operation process is simple and intuitive, requiring no complex technology, which greatly reduces the workload and technical difficulty of the operator and significantly improves the ease of use of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the material discharge structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the sweeping rod in its stored state according to this utility model;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the sweeping rod of this utility model;

[0022] Figure 5This is a schematic diagram of the three-dimensional cross-sectional structure of the reinforcing rod of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Bucket; 2. Sweeping disc; 3. Conveyor belt; 40. Rotating shaft; 41. Rotating sleeve; 42. Sweeping rod; 421. Protruding rod; 43. Drive wheel; 44. Drive belt; 45. Driven wheel; 46. Reinforcing rod; 461. Limiting groove one; 462. Limiting groove two; 47. Elastic locking rod.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model proposes a material discharge structure for a cantilever tunneling machine, including a bucket 1, a sweeping disc 2 on the bucket 1, a conveyor belt 3 behind the sweeping disc 2, and a sweeping device at the end of the bucket 1. When the tunneling machine is working, the sweeping disc 2 on the bucket 1 will rotate under the drive of the built-in motor. Through the rotation of the sweeping disc 2, the debris in the bucket 1 can be swept to the conveyor belt 3, and then the conveyor belt 3 will transport the debris to the outside of the tunnel. This is the prior art, so it will not be described in the following description.

[0028] In this embodiment of the utility model, in order to increase the sweeping range of the tunneling machine, the sweeping device specifically includes a rotating shaft 40, which passes through a rotating sleeve 41 and is fixedly connected to the rotating sleeve 41. A driven wheel 45 is connected to the outer wall of the bottom end of the rotating shaft 40. A transmission belt 44 is drivenly connected to the driven wheel 45. A transmission wheel 43 is drivenly connected to the transmission belt 44. The transmission wheel 43 is connected to the rotating shaft of the sweeping disc 2. The sweeping rod 42 is hinged to the rotating sleeve 41. There are two sets of sweeping rods 42, which are respectively set at the front end of the bucket 1 to increase the sweeping area of ​​the device.

[0029] Furthermore, a protruding rod 421 is connected to the outer wall of the sweeping rod 42. The protruding rod 421 passes through the reinforcing rod 46 and is rotatably connected to the reinforcing rod 46. The end of the reinforcing rod 46 away from the protruding rod 421 is hinged to the outer wall of the rotating sleeve 41. Through the design of the reinforcing rod 46, the stability of the sweeping rod 42 can be improved. The outer wall of the reinforcing rod 46 is provided with a limiting groove 1 461 and a limiting groove 2 462. An elastic locking rod 47 is provided below the reinforcing rod 46 to limit the reinforcing rod 46. The included angle between the limiting groove 1 461 and the limiting groove 2 462 is ninety degrees, which correspond to the retracted and extended states of the sweeping rod 42, respectively.

[0030] In this utility model, when the sweeping disc 2 is working, the drive belt 44, drive wheel 43 and driven wheel 45 drive the rotating shaft 40 to rotate synchronously with the rotating sleeve 41. At this time, the sweeping rod 42, which is hinged to the rotating sleeve 41, rotates synchronously. When the sweeping rod 42 rotates, it can push the broken material on the outer wall of the bucket 1 onto the bucket 1, and then the sweeping disc 2 will transport the broken material to the conveyor belt 3, thereby increasing the efficiency of the tunneling machine's material discharge.

[0031] When it is necessary to retract the sweeping rod 42, simply pull the sweeping rod 42 so that it rotates around the hinge point with the rotating sleeve 41. During this process, the second limiting groove 462 will squeeze the elastic locking rod 47, causing the elastic locking rod 47 to disengage from the second limiting groove 462. At the same time, the spring undergoes elastic deformation. When the sweeping rod 42 rotates ninety degrees, the end of the sweeping rod 42 will coincide with the first limiting groove 461. At this time, the sweeping rod 42 will be inserted into the first limiting groove 461 under the elastic force of the spring, thus completing the retraction of the sweeping rod 42.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A material discharging structure of a boom-type tunneling machine, comprising a bucket (1) provided with a material sweeping disc (2) at the front thereof, a material conveying belt (3) provided at the rear of the material sweeping disc (2), and a material sweeping device provided at the end of the bucket (1), characterized in that: The sweeping device includes: A rotating shaft (40) passes through a rotating sleeve (41) and is fixedly connected to the rotating sleeve (41). A driven wheel (45) is connected to the outer wall of the bottom end of the rotating shaft (40). The sweeping rod (42) is hinged to the rotating sleeve (41).

2. The material discharge structure of a cantilever tunneling machine according to claim 1, characterized in that: The driven wheel (45) is connected to a drive belt (44), and the drive belt (44) is connected to a drive wheel (43), and the drive wheel (43) is connected to the rotating shaft of the sweeping disc (2).

3. The material discharge structure of a cantilever tunneling machine according to claim 1, characterized in that: The outer wall of the sweeping rod (42) is connected to a protruding rod (421), which passes through the reinforcing rod (46) and is rotatably connected to the reinforcing rod (46).

4. The material discharge structure of a cantilever tunneling machine according to claim 3, characterized in that: The end of the reinforcing rod (46) away from the protruding rod (421) is hinged to the outer wall of the rotating sleeve (41), and the outer wall of the reinforcing rod (46) is provided with a limiting groove one (461) and a limiting groove two (462).

5. The material discharge structure of a cantilever tunneling machine according to claim 4, characterized in that: The reinforcing rod (46) is provided with an elastic locking rod (47) below it for limiting the reinforcing rod (46).

6. The material discharge structure of a cantilever tunneling machine according to claim 4, characterized in that: The included angle between the first limiting groove (461) and the second limiting groove (462) is 90 degrees, which correspond to the contracted and unfolded states of the sweeping rod (42) respectively.

7. The material discharge structure of a cantilever tunneling machine according to claim 1, characterized in that: The sweeping rod (42) is provided in two sets, and is respectively set at the front end of the bucket (1) to increase the sweeping area of ​​the device.

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