Drilling rig structure of coring drill

Abstract

The utility model relates to the technical field of drill stands of core drills, in particular to a drill stand structure of a core drill, which comprises a drill barrel driving component, a drill barrel, a guide ring, a guide rail, a drill stand, a thrust cylinder, a guide sleeve, a fixed chain wheel group, a chain wheel a, a chain wheel b, a chain wheel c, a chain wheel d, a first chain and a second chain. The whole drilling rig is smaller and more exquisite, the occupied space is effectively reduced, the weight of the drilling rig is reduced, meanwhile, the space utilization rate of the drilling rig is increased, the drilling rig can better meet the operation requirements under narrow or complex geological conditions, and the working stability is improved; the force applied by the oil cylinder to the drill barrel driving assembly is always in the horizontal direction, the stress of the oil cylinder is also always in the horizontal direction, the energy loss of oil cylinder propelling and the abrasion of the oil cylinder are reduced, and the stable operation of the device and the service life of the oil cylinder are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of a core drill frame, in particular to a core drill frame structure. Background Art

[0002] In the fields of geological exploration, mineral resource development and geotechnical engineering, core drills are key drilling tools, and their performance and stability directly affect the efficiency and success rate of drilling operations. The drill frame is one of the indispensable structures of the core drill, which can improve the stability of the drill barrel and achieve the purpose of extending and retracting the drill barrel. However, the existing core drill frame usually adopts a complex multi-cylinder to achieve the extension and retraction of the drill barrel. This design not only makes the drill frame structure bulky and heavy, increases the manufacturing cost and transportation difficulty of the equipment, but also occupies a large amount of working space, limiting its application in narrow or complex geological conditions. Most of the existing core drill equipment is vertically installed at the top or bottom of the cylinder output end. When the cylinder is working, it is easy to generate a tilting force. Since the cylinder may be subjected to non-horizontal forces during the driving process, the force state of the cylinder is complicated, which accelerates the wear of the cylinder and shortens the service life of the equipment. At the same time, the non-horizontal force will also make the extension and retraction movement of the drill barrel not smooth enough, affecting the accuracy and efficiency of the drilling operation, and there are certain shortcomings. Utility Model Content

[0003] The utility model aims to provide a drill frame structure for a core drill to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drill frame structure for a core drill, comprising a drill frame, a drill barrel drive assembly is arranged on the drill frame, a drill barrel is installed at the output end of the drill barrel drive assembly, a propulsion cylinder is installed in the drill frame, the head and tail ends of the propulsion cylinder are respectively fixedly connected to the head and tail end panels of the drill frame, two groups of fixed sprocket groups are respectively installed on the head and tail end panels of the drill frame, each group of fixed sprocket groups is composed of sprocket a and sprocket b, the sprocket a and sprocket b of each group of fixed sprocket groups are arranged vertically, and sprockets are installed on both sides of one end of the cylinder body of the propulsion cylinder c, sprockets d are installed on both sides of the other end of the cylinder body of the thrust cylinder, chain seats are symmetrically installed on both sides of the drill barrel driving assembly, chain fixing positions are set at the head and tail ends of the chain seat, one end of the chain seat is fixedly connected to one end of the first chain, and the other end of the chain seat is fixedly connected to one end of the second chain. The other end of the first chain bypasses the sprocket a and sprocket b at the head end of the drill rig, and then bypasses the panel fixed at the head end of the drill rig from the sprocket c. The other end of the second chain bypasses the sprocket a and sprocket b at the tail end of the drill rig, and then bypasses the panel fixed at the tail end of the drill rig from the sprocket d.

[0005] Preferably, two guide rails are fixedly connected between the head and tail end panels of the drill rig, and the two guide rails are symmetrically arranged about the drill barrel. A guide sleeve matched with the guide rails is fixedly connected to the drill barrel drive assembly, and the guide sleeve is slidably sleeved on the guide sleeve. Steel sleeves and dust rings are provided at both ends of the guide sleeve, which can effectively resist wear and dust.

[0006] Preferably, a guide ring is provided at the head end of the drill rig, the drill barrel slides inside the guide ring, and the guide ring and the drill barrel are coaxial.

[0007] Preferably, the drill rack is welded by square tubes and plates. After the first chain is engaged with sprocket a, an upper section of the first chain is parallel to the drill barrel, the drill barrel is horizontally arranged, and an upper section of the first chain and an upper section of the second chain are located in the same horizontal plane. After the first chain is engaged with sprocket b, a lower section of the first chain is parallel to the drill barrel, and a lower section of the first chain and a lower section of the second chain are located in the same horizontal plane.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model has an ingenious structure. The device only uses one propulsion oil cylinder, and the drill rig as a whole is more compact, which effectively reduces the space occupation and reduces the weight of the drill rig. At the same time, the space utilization rate of the drill rig is also improved, making it more adaptable to the operation requirements under narrow or complex geological conditions and improving the stability during operation. Through the design of multiple sets of sprockets, the force applied by the oil cylinder to the drill barrel drive assembly is always in the horizontal direction, and the force on the oil cylinder is also always in the horizontal direction, which reduces the energy loss of the oil cylinder propulsion and the wear of the oil cylinder, thereby ensuring the stable operation of the device and the service life of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is one of the schematic diagrams of the internal structure of the drilling rig of the utility model;

[0011] Figure 2 This is the second schematic diagram of the internal structure of the drilling rig of the utility model;

[0012] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 4 For the utility model Figure 1 main view.

[0014] In the figure: 1, drill barrel drive assembly; 2, drill barrel; 3, guide ring; 4, guide rail; 5, drill frame; 6, thrust cylinder; 7, guide sleeve; 8, fixed sprocket group; 801, 2044 sprocket a; 802, 2044 sprocket b; 9, 1634 sprocket c; 10, sprocket d; 11, first chain; 12, second chain. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figures 1 to 4The utility model provides a technical solution: a drill frame structure of a coring drill, including a drill frame 5, on which a drill barrel driving assembly 1 is arranged. The drill barrel driving assembly 1 is a prior art, and can adopt a tooth box driving assembly in an adjustable impact coring drill tool with a publication number of CN220929333U, or can adopt the same drill barrel driving mechanism in a gantry structure suitable for a gantry-type tunnel coring drilling machine with a publication number of CN216342156U. A drill barrel 2 is installed at the output end of the drill barrel driving assembly 1, and a propulsion cylinder 6 is installed in the drill frame 5. The head and tail ends of the propulsion cylinder 6 are respectively fixedly connected to the drill frame. 5, two sets of fixed sprocket groups 8 are respectively installed on the head and tail end panels of the drill frame 5, each set of fixed sprocket groups 8 is composed of sprocket a801 and sprocket b802, and the sprocket a801 and sprocket b802 of each set of fixed sprocket groups 8 are arranged vertically, sprocket c9 is installed on both sides of one end of the cylinder body of the propulsion cylinder 6, and sprocket d10 is installed on both sides of the cylinder body of the propulsion cylinder 6. Chain seats are symmetrically installed on both sides of the drill tube driving assembly 1, and chain fixing positions are set at the head and tail ends of the chain seat. One end of the chain seat is fixedly connected to one end of the first chain 1, and the other end of the chain seat is connected to one end of the second chain 12. The other end of the first chain 1 is connected fixedly, the other end of the first chain 1 passes around the sprocket a801 and the sprocket b802 at the head end of the drilling frame 5, and then passes around the panel fixed at the head end of the drilling frame 5 from the sprocket c9, the other end of the second chain 12 passes around the sprocket a801 and the sprocket b802 at the tail end of the drilling frame 5, and then passes around the panel fixed at the tail end of the drilling frame 5 from the sprocket d10, the sprocket a801 and the sprocket b802 are both 2044 type sprockets, the sprocket c9 and the sprocket d10 are 1634 type sprockets, when the propulsion cylinder 6 is working, when the cylinder body of the propulsion cylinder 6 moves toward the tail end of the drilling frame 5, at this time, the first chain 1 exerts force on the drill tube drive assembly 1 The pulling force applied to the head end of the drill rig 5 causes the drill barrel drive assembly 1 and the drill barrel 2 to move toward the head end of the drill rig 5, thereby causing the drill barrel 2 to extend from the drill rig 5, and the cylinder body of the propulsion oil cylinder 6 moves forward and backward. When the cylinder body of the propulsion oil cylinder 6 moves toward the head end of the drill rig 5, the second chain 12 applies a pulling force to the drill barrel drive assembly 1 toward the tail end of the drill rig 5, thereby causing the drill barrel drive assembly 1 and the drill barrel 2 to move toward the tail end of the drill rig 5, thereby causing the drill barrel 2 to be retracted from the front end of the drill rig 5. By using one propulsion oil cylinder, the drill rig as a whole is more compact, effectively reducing space occupancy, reducing the weight of the drill rig, and improving stability during operation. Through the design of multiple sets of sprockets, the force applied by the oil cylinder to the drill barrel drive assembly 1 is always in the horizontal direction, and the force applied to the oil cylinder is also always in the horizontal direction, thereby reducing the energy loss of the oil cylinder propulsion and the wear of the oil cylinder, thereby ensuring the stable operation of the device and the service life of the oil cylinder.

[0017] Furthermore, two guide rails 4 are fixedly connected between the head and tail end panels of the drill rig 5, and the two guide rails 4 are symmetrically arranged about the drill barrel 2. A guide sleeve 7 matched with the guide rail 4 is fixedly connected to the drill barrel drive assembly 1, and the guide sleeve 7 is slidably sleeved on the guide sleeve 7. Steel sleeves and dust rings are provided at both ends of the guide sleeve 7, which can effectively resist wear and dust.

[0018] Furthermore, a guide ring 3 is provided at the head end of the drill frame 5 , and the drill tube 2 is slidably located in the guide ring 3 , and the guide ring 3 and the drill tube 2 are coaxial.

[0019] Furthermore, the drill rack 5 is welded by square tubes and plates. After the first chain 1 is engaged with the sprocket a801, the upper section of the first chain 1 is parallel to the drill barrel 2, the drill barrel 2 is horizontally arranged, the upper section of the first chain 1 and the upper section of the second chain 12 are located in the same horizontal plane, and after the first chain 1 is engaged with the sprocket b802, the lower section of the first chain 1 is parallel to the drill barrel 2, and the lower section of the first chain 1 and the lower section of the second chain 12 are located in the same horizontal plane, ensuring that the force-bearing parts of the device are subjected to force in the horizontal direction, reducing the energy loss of the cylinder propulsion and the wear of the cylinder.

[0020] The above shows and describes the basic principle, main features and advantages of the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A drill frame structure for a coring drill, comprising a drill frame (5), a drill barrel drive assembly (1) being arranged on the drill frame (5), a drill barrel (2) being installed at an output end of the drill barrel drive assembly (1), and characterized in that: A propulsion cylinder (6) is installed in the drilling frame (5), and the front and rear ends of the propulsion cylinder (6) are respectively fixedly connected to the front and rear end panels of the drilling frame (5), and two sets of fixed sprocket groups (8) are respectively installed on the front and rear end panels of the drilling frame (5), each set of fixed sprocket groups (8) is composed of a sprocket a (801) and a sprocket b (802), and the sprocket a (801) and the sprocket b (802) of each set of fixed sprocket groups (8) are arranged vertically, and sprockets c (9) are installed on both sides of one end of the cylinder body of the propulsion cylinder (6), and sprockets d (10) are installed on both sides of the other end of the cylinder body of the propulsion cylinder (6). The drill tube drive assembly (1) Chain seats are symmetrically installed on both sides, and chain fixing positions are arranged at the head and tail ends of the chain seats. One end of the chain seat is fixedly connected to one end of the first chain (11), and the other end of the chain seat is fixedly connected to one end of the second chain (12). The other end of the first chain (11) passes around the sprocket a (801) and the sprocket b (802) at the head end of the drilling frame (5), and then passes around the panel fixed at the head end of the drilling frame (5) from the sprocket c (9). The other end of the second chain (12) passes around the sprocket a (801) and the sprocket b (802) at the tail end of the drilling frame (5), and then passes around the panel fixed at the tail end of the drilling frame (5) from the sprocket d (10).

2. The drill frame structure of the core drill according to claim 1, characterized in that: Two guide rails (4) are fixedly connected between the head and tail end panels of the drill frame (5), and the two guide rails (4) are symmetrically arranged with respect to the drill tube (2). A guide sleeve (7) matched with the guide rail (4) is fixedly connected to the drill tube drive assembly (1), and the guide sleeve (7) is slidably sleeved on the guide sleeve (7).

3. The drill frame structure of the core drill according to claim 2, characterized in that: Steel sleeves and dustproof rings are provided at both ends of the guide sleeve (7).

4. The drill frame structure of the core drill according to claim 1, characterized in that: A guide ring (3) is provided at the head end of the drill frame (5), the drill tube (2) is slidably located in the guide ring (3), and the guide ring (3) and the drill tube (2) are coaxial.

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