A drill rod device based on a telescopic composite grooving cutter head

Abstract

The present invention discloses a drill rod device based on a telescopic composite grooving cutter head, which belongs to the field of drilling and blasting excavation, and includes a drill rod assembly connected to a drilling rig, wherein the drill rod assembly includes a drill rod 1 and a drill rod 2, wherein one end of the drill rod 1 is connected to the drilling rig, and the other end of the drill rod 1 is connected to one end of the drill rod 2 through a telescopic mechanism, and the other end of the drill rod 2 is connected to a drill head assembly; the telescopic mechanism includes a rotating rod, wherein the two ends of the rotating rod are respectively connected to the drill rod 1 and the drill rod 2, the rotating rod is connected to a connecting sleeve 1 through a sliding assembly 1, and the rotating rod is connected to a connecting sleeve 2 through a sliding assembly 2, and a telescopic grooving cutter assembly is arranged in the cutter head sleeve. The present invention drives the side wheels to rotate through the center wheel, and the side wheels drive the connecting rods at eccentric positions to rotate, so that the grooving cutter head rotates to extend or retract, and can unimpededly recover the drilling tools inside the rock mass, improve the time-consuming and low-efficiency problems of the recovery equipment process, and provide convenience for blasting and excavation work.

Description

Technical Field

[0001] The invention relates to the technical field of drilling and blasting excavation, in particular to a drill rod device based on a telescopic composite grooving cutter head. Background Art

[0002] my country is in a stage of rapid development of infrastructure construction, and the transportation industry is developing vigorously. There are many rock slopes on highways, and the demand for excavation of slope rock mass is very large every year. In the process of highway slope excavation, blasting is the most frequently used and most effective means of rock breaking. Traditional blasting technology can obtain a regular excavation contour surface by optimizing blasting parameters, but how to accurately control the surrounding shaping, reduce the vibration, flying rocks, and dust disasters caused by blasting, and reduce the damage to the rock mass caused by blasting, and protect the stability of the slope, has always been the focus of many blasting experts and on-site engineers.

[0003] The drilling and blasting method is the most traditional construction method. It has an absolute advantage in my country's tunnel excavation market with its economic, practical, simple and flexible advantages. However, in many years of engineering applications, the drilling and blasting method has also exposed many shortcomings. The drilling and blasting method has poor controllability and is prone to over-excavation and under-excavation. In particular, in actual engineering, it is easy to encounter problems such as the cutter head and blade jamming, large pull rod load and large equipment loss.

[0004] After drilling and grooving, when the drill bit and grooving cutter head are recovered from the surrounding rock, the grooving cutter head is easily obstructed when moving back from the outside, thereby increasing the time consumption of the recovery equipment and reducing efficiency. Therefore, it is urgent to improve it. Summary of the invention

[0005] In order to solve the problems in the above-mentioned background technology, the present invention provides a drill rod device based on a telescopic composite grooving cutter head, in which the center wheel drives the side wheels to rotate, and the side wheels drive the connecting rod in the eccentric position to rotate, so that the grooving cutter head can be rotated to extend or retract, and the drilling tool inside the rock mass can be retrieved unimpeded, thereby improving the time-consuming and inefficient recovery process of the equipment and providing convenience for blasting and excavation work.

[0006] To achieve the above-mentioned purpose, the present invention provides a drill rod device based on a telescopic composite grooving cutter head, including a drill rod assembly connected to a drilling rig, the drill rod assembly including drill rod one and drill rod two, one end of drill rod one is connected to the drilling rig, the other end of drill rod one is connected to one end of drill rod two through a telescopic mechanism, and the other end of drill rod two is connected to the drill bit assembly; the telescopic mechanism includes a rotating rod, the two ends of the rotating rod are respectively connected to drill rod one and drill rod two, the rotating rod is arranged inside a connecting sleeve one, a cutter head sleeve, and a connecting sleeve two, the connecting sleeve one and the connecting sleeve two are respectively arranged on both sides of the cutter head sleeve, the rotating rod is connected to the connecting sleeve one through a sliding assembly one, the rotating rod is connected to the connecting sleeve two through a sliding assembly two, and a telescopic grooving cutter assembly is arranged in the cutter head sleeve.

[0007] Preferably, the drill bit assembly includes a connecting block, one end of which is connected to the drill rod 2 through a thread, and the other end of the connecting block is connected to the drill bit, the top of the drill bit is configured to be hemispherical, and the top of the drill bit is provided with a plurality of protrusions.

[0008] Preferably, the grooving cutter assembly includes a composite grooving cutter head, which is arranged on a cutter head seat, and the cutter head seat is connected to the telescopic assembly through a connecting rod.

[0009] Preferably, the telescopic assembly includes a center wheel located in the middle of the blade cover, the center wheel is mounted on a rotating rod, the center wheel is connected to the side wheels, a rotating shaft is provided at the center of the side wheels, and a connecting rod is connected to an eccentric position of the side of the side wheel.

[0010] Preferably, one end of the rotating shaft is fixedly connected to the isolation plate, and the other end of the rotating shaft is rotatably connected to the side wheel, and a limiting block is provided on both sides of the side wheel.

[0011] Preferably, an isolation plate is arranged in the cutter head sleeve, a center hole for the rotating rod to pass through is arranged in the center of the isolation plate, a rotating groove for the connecting rod to rotate is arranged on the isolation plate, one end of the connecting rod passing through the rotating groove is connected to the cutter head seat, and the connecting rod is slidably connected to the rotating groove.

[0012] Preferably, the sliding component 1 includes a sliding block, which is arranged on the rotating rod, and a sliding groove adapted to the sliding block is arranged in the connecting sleeve 1, and the sliding block is arranged in the sliding groove and slidably connected with the sliding groove; a limit block 2 is arranged in the sliding groove to limit the sliding of the sliding block.

[0013] Preferably, sliding component two includes a slider group, which is arranged on the rotating rod, and the slider group includes slider one and slider two, the bottom end of slider one is connected to the rotating rod, and slider two is arranged on the top side of slider one, a sliding groove matched with slider one is arranged in connecting sleeve two, slider one is arranged in the sliding groove and is slidably connected to the sliding groove, a sliding groove matched with slider two is arranged in the sliding groove, slider two is arranged in the sliding groove and is slidably connected to the sliding groove, and the shape of the slider group is T-shaped; a limit block three for limiting the sliding of the slider group is arranged in the sliding groove.

[0014] Preferably, both the connecting sleeve 1 and the connecting sleeve 2 are locked and connected to the cutter head sleeve via threads.

[0015] Preferably, the cutter head sleeve is provided with an opening for the composite grooving cutter head to rotate and extend out.

[0016] Therefore, the present invention adopts the above-mentioned drill rod device based on the telescopic composite grooving cutter head, which has the following beneficial effects:

[0017] The present invention drives the side wheels to rotate by the center wheel, and the side wheels drive the connecting rods at eccentric positions to rotate, so that the grooving cutter head can be rotated to extend or retract, and the drilling tool inside the rock mass can be unimpededly recovered, thereby improving the time-consuming and low-efficiency problems of the recovery equipment process, and providing convenience for blasting and excavation work.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the internal structure of a drill rod device according to an embodiment of the present invention;

[0020] Figure 2 A three-dimensional diagram of a drill rod device according to an embodiment of the present invention;

[0021] Figure 3 A side view of a connecting sleeve according to an embodiment of the present invention;

[0022] Figure 4 It is a side view of the connecting sleeve of the embodiment of the present invention;

[0023] Figure 5 A side view of an isolation plate according to an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the structure of a drill bit assembly according to an embodiment of the present invention.

[0025] Reference numerals

[0026] 1. Drill rod one; 2. Drill rod two; 3. Connecting block; 4. Drill bit; 5. Protrusion; 6. Composite grooving cutter head; 7. Cutting head seat; 8. Connecting rod; 9. Cutting head cover; 10. Rotating rod; 11. Center wheel; 12. Side wheel; 13. Rotating shaft; 14. Limit block one; 15. Isolation plate; 16. Rotating groove; 17. Connecting sleeve one; 18. Sliding block; 19. Limit block two; 20. Connecting sleeve two; 21. Sliding block one; 22. Sliding block two; 23. Limit block three. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0028] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0029] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 , Figure 2 As shown, a drill rod device based on a telescopic composite grooving cutter head described in the present invention includes a drill rod assembly connected to a drilling rig, the drill rod assembly includes a drill rod 1 and a drill rod 2, one end of the drill rod 1 is connected to the drilling rig, the other end of the drill rod 1 is connected to one end of the drill rod 2 through a telescopic mechanism, and the other end of the drill rod 2 is connected to the drill bit assembly.

[0033] like Figure 6 As shown, the drill bit assembly includes a connecting block 3, one end of which is connected to the drill rod 2 through a thread, and the other end of the connecting block 3 is connected to a drill bit 4, the top of the drill bit 4 is set to be hemispherical, and the top of the drill bit 4 is provided with a plurality of protrusions 5. The drill bit assembly and the drill rod 2 connected by threads are convenient for disassembly of the drill bit assembly, convenient for unloading, and convenient for replacing a damaged drill bit 4.

[0034] like Figure 1As shown, the telescopic mechanism includes a rotating rod 10, and the two ends of the rotating rod 10 are respectively connected to the drill rod 1 and the drill rod 2. The rotating rod 10 is arranged inside the connecting sleeve 17, the cutter head sleeve 9, and the connecting sleeve 20. The connecting sleeve 17 and the connecting sleeve 20 are respectively arranged on both sides of the cutter head sleeve 9. The rotating rod 10 is connected to the connecting sleeve 17 through the sliding component 1, and the rotating rod 10 is connected to the connecting sleeve 20 through the sliding component 2. A telescopic grooving knife assembly is arranged in the cutter head sleeve 9. The connecting sleeve 17 and the connecting sleeve 20 are both locked and connected to the cutter head sleeve 9 through threads. The rotating rod 10 is divided into two sections, and the two sections of the rotating rod 10 are connected by threads. The threaded connection of the two sections of the rotating rod 10 is arranged inside the cutter head sleeve 9. Through this structure, the connecting sleeve 17 and the connecting sleeve 20 can be disassembled from the cutter head sleeve 9, which is convenient for recycling the components and transporting them.

[0035] The grooving cutter assembly includes a composite grooving cutter head 6, and the composite grooving cutter head 6 is arranged on a cutter head seat 7, and the cutter head seat 7 is connected to the telescopic assembly through a connecting rod 8. The telescopic assembly includes a center wheel 11 located in the middle of the cutter head cover 9, and the center wheel 11 is sleeved on the rotating rod 10. The center wheel 11 is connected to the side wheel 12, and a rotating shaft 13 is arranged at the center of the side wheel 12, and the connecting rod 8 is connected to the eccentric position of the side wheel 12. One end of the rotating shaft 13 is fixedly connected to the isolation plate 15, and the other end of the rotating shaft 13 is rotatably connected to the side wheel 12, and limit blocks 14 are arranged on both sides of the side wheel 12. The isolation plate 15 is arranged in the cutter head cover 9, and the circular edge of the isolation plate 15 is fixedly connected to the cutter head cover 9. As shown Figure 5 As shown, a center hole for the rotating rod 10 to pass through is provided at the center of the isolation plate 15, and a rotating groove 16 for the connecting rod 8 to rotate is provided on the isolation plate 15. One end of the connecting rod 8 passing through the rotating groove 16 is connected to the cutter head seat 7, and the connecting rod 8 is slidably connected to the rotating groove 16. An opening is provided on the cutter head cover 9 for the composite grooving cutter head 6 to rotate and extend. Both the center wheel 11 and the side wheels 12 are gears, and the center wheel 11 and the side wheels 12 are meshed and connected.

[0036] When the drill rod 2 rotates, it drives the rotating rod 10 and the drill rod 1 to rotate, the rotating rod 10 drives the center wheel 11 to rotate, the center wheel 11 drives the upper and lower side wheels 12 to rotate, the side wheels 12 rotate on the fixed side wheels 12, and the limit blocks 14 can limit the deviation of the side wheels 12 (two limit blocks 14 are set on the rotating shaft 13, and the side of the side of the limit blocks 14 is slidably connected); because the connecting rod 8 is connected to the eccentric position of the side wheel 12, the rotation of the side wheel 12 drives the connecting rod 8 to rotate, and then drives the cutter head seat 7 to rotate, and the cutter head seat 7 drives the composite grooving cutter head 6 to rotate and extend or retract from the opening of the cutter head cover 9. After the composite grooving cutter head 6 is extended, the cutter head seat 7 just blocks the opening to form a closed state. After the composite grooving cutter head 6 is extended, grooving and drilling work can be performed. After the composite grooving cutter head 6 is retracted, the drilling tool inside the rock mass can be unimpededly recovered, thereby improving the time-consuming and inefficient recovery process and providing convenience for blasting and excavation work.

[0037] like Figure 3 As shown, the sliding assembly 1 includes a sliding block 18, which is arranged on the rotating rod 10. A sliding groove adapted to the sliding block 18 is arranged in the connecting sleeve 17, and the sliding block 18 is arranged in the sliding groove and slidably connected to the sliding groove. A limit block 2 19 is arranged in the sliding groove to limit the sliding of the sliding block 18. Figure 4 As shown, the sliding assembly 2 includes a slider group, and the slider group is arranged on the rotating rod 10. The slider group includes a slider 1 21 and a slider 2 22. The bottom end of the slider 1 21 is connected to the rotating rod 10, and the slider 2 22 is arranged on the top side of the slider 1 21. A sliding groove matching the slider 1 21 is arranged in the connecting sleeve 20, and the slider 1 21 is arranged in the sliding groove and slidably connected to the sliding groove. A sliding groove matching the slider 2 22 is arranged in the sliding groove and slidably connected to the sliding groove. The shape of the slider group is T-shaped. A limit block 3 23 for limiting the sliding of the slider group is arranged in the sliding groove. Limit block two 19 and limit block three 23 can respectively limit the rotation of the sliding block 18 and the slider group, and then limit the rotation of the rotating rod 10, so that after the rotating rod 10 drives the composite grooving cutter head 6 to extend or retract through the center wheel 11, side wheel 12 and other structures, the composite grooving cutter head 6 no longer rotates and moves, thereby facilitating drilling or recovery work.

[0038] When the rotating rod 10 rotates, the sliding block 18 and the slider group are driven to slide in the sliding groove, respectively. This structure can limit the displacement of the rotating rod 10 along the rod direction, and prevent the rotating rod 10 from driving the center wheel 11 to deviate. The slider group is set to be T-shaped, and by adding a slider 22 to slide in the sliding groove, the stability of the slider group rotation can be improved, and then the stability of the rotating rod 10 on the connecting sleeve 20 can be improved, so that the rotation extension or retraction process of the composite grooving cutter head 6 is more stable.

[0039] The present invention uses a gear transmission structure that drives the side wheels 12 to rotate through the center wheel 11, and cooperates with the grooving cutter structure connected to the side wheels 12 at an eccentric position through a connecting rod 8, so as to convert the rotation into the flipping, extension or retraction of the composite grooving cutter head 6, thereby realizing the extension and retraction of the composite grooving cutter head 6, making the drill rod recovery more convenient and rapid, and providing convenience for blasting and excavation work.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A drill rod device based on a telescopic composite grooving cutter head, characterized in that: The drill rod assembly includes a drill rod assembly connected to the drilling rig, the drill rod assembly includes a drill rod 1 and a drill rod 2, one end of the drill rod 1 is connected to the drilling rig, the other end of the drill rod 1 is connected to one end of the drill rod 2 through a telescopic mechanism, and the other end of the drill rod 2 is connected to the drill bit assembly; the telescopic mechanism includes a rotating rod, the two ends of the rotating rod are respectively connected to the drill rod 1 and the drill rod 2, the rotating rod is arranged inside the connecting sleeve 1, the cutter head sleeve, and the connecting sleeve 2, the connecting sleeve 1 and the connecting sleeve 2 are respectively arranged on both sides of the cutter head sleeve, the rotating rod is connected to the connecting sleeve 1 through a sliding assembly 1, the rotating rod is connected to the connecting sleeve 2 through a sliding assembly 2, and a telescopic grooving knife assembly is arranged in the cutter head sleeve; The grooving cutter assembly comprises a composite grooving cutter head, which is arranged on a cutter head seat, and the cutter head seat is connected to the telescopic assembly through a connecting rod; The telescopic assembly includes a center wheel located in the middle of the blade head cover, the center wheel is sleeved on the rotating rod, the center wheel is connected to the side wheel, a rotating shaft is arranged at the center of the side wheel, and the connecting rod is connected to the eccentric position of the side of the side wheel; One end of the rotating shaft is fixedly connected to the isolation plate, and the other end of the rotating shaft is rotatably connected to the side wheel, and a limiting block is arranged on both sides of the side wheel; The isolation plate is arranged in the cutter head cover, and a center hole for the rotating rod to pass through is arranged in the center of the isolation plate. A rotating groove for the connecting rod to rotate is arranged on the isolation plate. One end of the connecting rod passing through the rotating groove is connected to the cutter head seat, and the connecting rod is slidably connected to the rotating groove.

2. A drill rod device based on a telescopic composite grooving cutter head according to claim 1, characterized in that: The drill bit assembly comprises a connecting block, one end of which is connected to the drill rod 2 through a thread, and the other end of the connecting block is connected to the drill bit, and a plurality of protrusions are arranged on the top of the drill bit.

3. A drill rod device based on a telescopic composite grooving cutter head according to claim 1, characterized in that: The sliding assembly 1 includes a sliding block, which is arranged on the rotating rod. A sliding groove adapted to the sliding block is arranged in the connecting sleeve 1, and the sliding block is arranged in the sliding groove and slidably connected with the sliding groove; a limit block 2 for limiting the sliding of the sliding block is arranged in the sliding groove.

4. A drill rod device based on a telescopic composite grooving cutter head according to claim 1, characterized in that: The sliding assembly 2 includes a slider group, which is arranged on the rotating rod. The slider group includes a slider 1 and a slider 2. The bottom end of the slider 1 is connected to the rotating rod, and the slider 2 is arranged on the top side of the slider 1. A sliding groove matching the slider 1 is arranged in the connecting sleeve 2. The slider 1 is arranged in the sliding groove and is slidably connected to the sliding groove. A sliding groove matching the slider 2 is arranged in the sliding groove. The slider 2 is arranged in the sliding groove and is slidably connected to the sliding groove. A limit block 3 for limiting the sliding of the slider group is arranged in the sliding groove.

5. The drill rod device based on the telescopic composite grooving cutter head according to claim 1, characterized in that: The connecting sleeve 1 and the connecting sleeve 2 are both locked and connected with the cutter head sleeve through threads.

6. A drill rod device based on a telescopic composite grooving cutter head according to claim 1, characterized in that: The cutter head sleeve is provided with an opening for the composite grooving cutter head to rotate and extend out.

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