A roadway ditch excavating device adapted to a downhole prying trolley

Abstract

This utility model discloses a tunnel ditch excavation device adapted to an underground skid trolley, comprising, from top to bottom, a pin, a transmission rod, a connecting plate, and bucket teeth; the pin is cylindrical with a threaded end for fastening with a nut; the transmission rod is vertically arranged and cylindrical, with a circular groove in the middle of one end and a circular pin hole on the side, and a rectangular groove in the middle of the other end; the connecting plate is square, with three semi-conical grooves at the lower end, each groove having a circular screw hole in the middle, the diameter of which is smaller than the thickness of the groove; the bucket teeth are wedge-shaped, with a semi-conical groove at the root, a circular opening in the middle of the groove, the diameter of which is smaller than the thickness of the groove, and an elongated cone at the top; a power cylinder is connected to the upper end of the transmission rod, and the threaded end of the pin passes through the circular pin hole on the side of the transmission rod and is fastened with a nut, the power cylinder being integrated with the transmission rod.

Description

Technical Field

[0001] This utility model belongs to the field of underground mining tunneling technology, specifically relating to a tunnel ditch excavation device adapted to an underground skid trolley. Background Technology

[0002] In underground mining operations such as coal and metal mines, the excavation of underground roadway drainage ditches is a crucial and challenging basic engineering project. These ditches are primarily used to drain water seepage and construction wastewater from the mine, ensuring a dry and safe underground working environment and playing a key role in maintaining normal mine production.

[0003] Current methods for excavating underground tunnel drainage ditches, such as manual excavation or using simple mechanical tools, make it difficult to precisely control the shape and size of the ditches. This results in poor ditch quality, affecting the ditches' water-carrying capacity and easily causing water accumulation and obstructed water flow. Furthermore, existing excavation equipment cannot fully adapt to complex terrain and geological conditions, requiring significant manual assistance for excavation. This not only increases the labor intensity of workers and the equipment failure rate but also prolongs the construction period. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a tunnel ditch excavation device adapted to an underground prying trolley, thus solving problems such as poor tunnel ditch excavation shaping and excessive manual labor.

[0005] A tunnel drainage ditch excavation device adapted to an underground skid trolley. The device is a solid, high-strength, wear-resistant steel product after installation. To adapt to the complex and varied geological conditions of underground tunnels and the fact that the rocks have a certain degree of hardness, the wear-resistant steel used in the device must have very high strength.

[0006] The device consists of, from top to bottom, a pin, a transmission rod, a connecting plate, and bucket teeth.

[0007] The pin is cylindrical with several threads of varying lengths at one end for fastening with a nut. The drive rod is cylindrical with a circular groove in the center of one end and a circular pin hole on the side, and a rectangular groove in the center of the other end. The connecting plate is square with three semi-conical grooves on the bottom, each with a circular threaded hole in the center, the diameter of which is smaller than the thickness of the groove. The bucket teeth are wedge-shaped with a semi-conical groove at the root, a circular opening in the center of the groove, the diameter of which is smaller than the thickness of the groove, and an elongated cone at the top.

[0008] During use, threaded end of the pin is passed through the circular pin hole on the side of the drive rod and secured with a nut, connecting the power cylinder and the drive rod as one unit. The other end of the drive rod is welded to the connecting plate to form a whole. The groove at the root of the bucket tooth is aligned with the groove on the connecting plate and then fixed with bolts to ensure effective transmission of digging force. During use, the bucket tooth can be tightened or replaced by tightening or loosening the bolts connecting the bucket tooth and the connecting plate.

[0009] The present invention has the following beneficial effects: the present invention enhances the adaptability of the tunnel ditch excavation device, improves the quality of ditch formation, reduces the amount of manual auxiliary work, and improves the quality and efficiency of ditch excavation; the present invention simplifies the tunnel ditch excavation process. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the installation of the excavation device of this utility model;

[0011] Figure 2 This is a front view of the excavation device of this utility model;

[0012] Figure 3 This is a side view of the excavation device of this utility model;

[0013] Reference numerals: 1. Pin shaft; 2. Connecting plate; 21. Groove; 22. Screw hole; 3. Transmission rod; 31. Groove; 32. Pin hole; 4. Bucket tooth; 5. Power cylinder. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0015] like Figures 1-3 As shown, a tunnel ditch excavation device adapted to an underground skid trolley includes a pin shaft, a transmission rod, a connecting plate, and bucket teeth.

[0016] The pin 1 is cylindrical, with several threads of varying lengths at one end for fastening with a nut.

[0017] The connecting plate 2 is square, with three semi-conical grooves 21 on the bottom. There is a circular screw hole in the middle of the groove 21, and the diameter of the screw hole is smaller than the thickness of the groove 21.

[0018] The transmission rod 3 is cylindrical, with a circular groove 31 in the middle of one end and a circular pin hole 32 on the side, and a rectangular groove in the middle of the other end.

[0019] The 4th tooth is wedge-shaped with a semi-conical groove at the root. There is a circular opening in the middle of the groove, the diameter of which is smaller than the thickness of the groove. The top is an elongated cone.

[0020] The method of using this utility model is as follows:

[0021] The threaded end of the pin 1 passes through the circular pin hole on the side of the transmission rod 3 and is fastened with a nut. The power cylinder 5 is connected to the transmission rod 3 as a whole. The other end of the transmission rod 3 is welded to the connecting plate 2 to form a whole. The groove at the root of the bucket tooth 4 is aligned with the protrusion of the connecting plate 2 and then fixed with bolts to ensure effective transmission of digging force. During use, the bucket tooth 4 can be tightened or replaced by tightening or loosening the bolts connecting the bucket tooth 4 and the connecting plate 2.

Claims

1. A tunnel drainage ditch excavation device adapted to an underground skid trolley, characterized in that, From top to bottom, it includes a pin (1), a transmission rod (3), a connecting plate (2), and bucket teeth (4); The pin (1) is cylindrical with a thread at one end for fastening with a nut; The transmission rod (3) is vertically arranged and cylindrical. One end has a circular groove (31) in the middle and a circular pin hole (32) on the side. The other end has a rectangular groove (31) in the middle. The connecting plate (2) is square, with three semi-conical protrusions (21) at the bottom. There is a circular screw hole (22) in the middle of the protrusion (21), and the diameter of the screw hole (22) is smaller than the thickness of the protrusion (21). The teeth (4) are wedge-shaped, with a semi-conical groove (31) at the root. There is a circular opening in the middle of the groove (31), the diameter of which is smaller than the thickness of the groove (31), and the top is an elongated cone. The upper end of the transmission rod (3) is connected to the power cylinder (5). The threaded end of the pin (1) passes through the circular pin hole (32) on the side of the transmission rod (3) and is fastened with a nut. The power cylinder (5) is connected to the transmission rod (3) as a whole. The lower end of the transmission rod (3) is welded to the connecting plate (2). The groove (31) at the root of the bucket tooth (4) is aligned with the protrusion (21) of the connecting plate (2) and then fixed with bolts to ensure effective transmission of digging force. During use, the bucket tooth (4) can be tightened or replaced by tightening and loosening the bolts connecting the bucket tooth (4) and the connecting plate (2).

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