Weak surrounding rock drilling device capable of preventing sand intake
By combining sealing and protective mechanisms, the problem of sand and gravel impurities entering the drilling rig in a weak surrounding rock environment was solved, achieving efficient and safe operation of the drilling rig and protection of the drill pipe.
Patent Information
- Application Number
- CN202520249060.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-17
AI Technical Summary
When drilling in a weak surrounding rock environment, impurities such as sand and gravel can easily enter the lifting structure of the drilling rig, causing the mechanism to jam, wear to increase, affecting operational efficiency and safety, and the drill pipe is easily damaged by sand and gravel debris, shortening its service life.
A sealing mechanism is used to dynamically seal the gaps in the sluice, combined with a protective mechanism to protect the drill rod. The sealing mechanism slides within the sluice to prevent impurities from entering, while the protective mechanism protects the drill rod from damage by sand and gravel through a protective net and frame.
It effectively prevents sand and gravel from entering the lifting trough, keeps the device clean and smooth, reduces drill pipe wear, extends drill pipe service life, and ensures efficient and safe drilling operations.
Smart Images
Figure CN223661754U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of drilling device, specifically relates to a weak surrounding rock drilling device of preventing sand and stone intake. BACKGROUND
[0002] Drilling operation in weak surrounding rock environment has been a technical challenge in engineering field. The geological conditions are complex and changeable, and sand and stone and other impurities are easily encountered in the drilling process. If these impurities are not properly handled, it will seriously threaten the normal operation of the drilling device. Especially in the lifting structure part of the drilling device, the invasion of sand and stone and other impurities often leads to mechanism jamming, accelerated wear and tear, and even causes failure, which seriously affects the operation efficiency and safety.
[0003] When the traditional drilling device faces this problem, it often lacks effective protection measures. The gap between the sliding groove and the connecting plate becomes the main invasion path of sand and stone and other impurities. Once these impurities enter the lifting groove, not only will it pollute the internal mechanical structure, but also will increase the frictional resistance, leading to poor operation of the lifting mechanism, and even damage. At the same time, the drill pipe is also easily damaged by the rebound of sand and stone debris in the process of penetrating the rock layer, which leads to serious wear and tear and shortens the service life of the drill pipe. Therefore, in view of the above technical problems, a weak surrounding rock drilling device for preventing sand and stone intake is proposed. SUMMARY
[0004] Therefore, in order to solve the above problems, the utility model provides a weak surrounding rock drilling device for preventing sand and stone intake. The sealing mechanism ensures the cleanliness and smoothness of the lifting structure, providing a stable environment for drilling operation. The protection mechanism protects the drill pipe from damage by sand and stone debris, prolonging the service life of the drill pipe. The two mechanisms work together to enable the drilling device to operate efficiently and safely in the weak surrounding rock environment.
[0005] The utility model discloses a kind of weak surrounding rock drilling devices for preventing sand and stone intake, including vertical rod, the inside of the vertical rod is equipped with lifting groove, the top of the vertical rod is fixedly connected with lifting motor, the downside of the lifting motor is fixedly connected with screw rod, the outside of the screw rod is threadedly connected with lifting block, and lifting block is slidably connected to the inside of lifting groove, the outside of the vertical rod is equipped with sliding slot, and sliding slot is connected with lifting groove, the outside of the lifting block is fixedly connected with connecting plate, and connecting plate is slidably connected to the inside of sliding slot, sealing mechanism is installed between sliding slot and connecting plate;The outside of the connecting plate is fixedly connected with fixed plate, the outside of the fixed plate is fixedly connected with protective shell, the inside of the protective shell is fixedly connected with drilling motor, the downside of the drilling motor is fixedly connected with drill rod, the bottom end of the drill rod is fixedly connected with drill bit, the downside of the protective shell is fixedly connected with protective cylinder, and drill rod is located inside protective cylinder, protective mechanism is installed between drill bit and protective cylinder.
[0006] Preferably, the screw rod is rotatably connected to the inside of the lifting groove.
[0007] Preferably, the sealing mechanism includes a mounting groove, a first sliding plate, a mounting seat, and a second sliding plate. The mounting groove is provided at the top of the sliding slot. The first sliding plate is fixedly connected to the upper side of the connecting plate and slidably connected to the inside of the mounting groove.
[0008] Preferably, the mounting seat is fixedly connected to the inside bottom of the sliding slot. The second sliding plate is fixedly connected to the top of the connecting plate, and the bottom end of the second sliding plate is slidably connected to the inside of the mounting seat.
[0009] Preferably, the fixed plate and the connecting plate are fixedly connected to the inclined reinforcing rod.
[0010] Preferably, the drill bit is made of alloy material.
[0011] Preferably, the protective mechanism includes a fixed ring, a connecting ring, a protective frame, and a protective net. The fixed ring is fixedly connected to the outside of the end of the protective cylinder. The connecting ring is sleeved on the outside of the drill rod, and the connecting ring is close to the drill bit. The protective frame is fixedly connected between the fixed ring and the connecting ring. The protective net is fixedly connected to all gaps between the protective frame, the fixed ring, and the connecting ring.
[0012] Preferably, the protective net is a meshed hollow structure made of metal material, and the protective net has elasticity.
[0013] The technical scheme of the utility model has at least the following beneficial effects:
[0014] The utility model provides a kind of weak surrounding rock drilling device for preventing sand and stone intake, when this device carries out drilling operation, connecting plate will drive first sliding plate to slide smoothly in sliding groove, while second sliding plate is followed in synchronous in mounting seat, both are closely matched, dynamic plugging sliding groove gap, effectively prevent impurities such as sand and stone into lifting groove, ensure that device lifting structure remains clean and smooth, and drill bit and drill pipe are blocked by protective frame between large stone, and protective net is blocked by its good elasticity and strength, flexible barrier and bounce off small stone, avoid drill pipe and sand and stone direct contact, while prevent sand and stone from penetrating into drill pipe and protective cylinder gap, significantly reduce drill pipe wear, realize the effective barrier of sand and stone and the overall protection of drill pipe. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure schematic diagram of the utility model;
[0016] Figure 2 It is the first local structure schematic diagram of the utility model;
[0017] Figure 3 It is Figure 2 the enlarged view of A;
[0018] Figure 4 It is the second local structure schematic diagram of the utility model;
[0019] Figure 5 It is Figure 4 the enlarged view of B;
[0020] Figure 6 It is Figure 1 the enlarged view of C;
[0021] Figure 7 It is the local structure right section view of the utility model;
[0022] Figure 8 It is Figure 1 the enlarged view of D;
[0023] Figure 9 It is Figure 7 the enlarged view of E;
[0024] Figure 10 It is Figure 2 the enlarged view of F.
[0025] Wherein: 1, vertical pole;2, lifting groove;3, lifting motor;4, screw;5, lifting block;6, sliding groove;7, connecting plate;8, mounting groove;9, first sliding plate;10, mounting seat;11, second sliding plate;12, fixed plate;13, protective shell;14, drilling motor;15, drill pipe;16, drill bit;17, protective cylinder;18, fixed ring;19, connecting ring;20, protective frame;21, protective net. Detailed Implementation
[0026] The following will be combined with the appendix Figures 1-10 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0027] This utility model provides a drilling device for preventing sand and gravel ingress into weak surrounding rock. Please refer to [link / reference needed]. Figures 1-10 The system includes a pole 1, with a lifting groove 2 on its inner side. A lifting motor 3 is fixedly connected to the top of the pole 1, and a lead screw 4 is fixedly connected to the lower side of the lifting motor 3. A lifting block 5 is threaded onto the outside of the lead screw 4 and is slidably connected to the inner side of the lifting groove 2. A sliding groove 6 is provided on the outside of the pole 1 and is connected to the lifting groove 2. A connecting plate 7 is fixedly connected to the outside of the lifting block 5 and is slidably connected to the inner side of the sliding groove 6. A sealing mechanism is installed between them; a fixing plate 12 is fixedly connected to the outside of the connecting plate 7, a protective shell 13 is fixedly connected to the outside of the fixing plate 12, a drilling motor 14 is fixedly connected to the inside of the protective shell 13, a drill rod 15 is fixedly connected to the lower side of the drilling motor 14, a drill bit 16 is fixedly connected to the bottom end of the drill rod 15, a protective cylinder 17 is fixedly connected to the lower side of the protective shell 13, and the drill rod 15 is located inside the protective cylinder 17. A protective mechanism is installed between the drill bit 16 and the protective cylinder 17.
[0028] The lead screw 4 is rotatably connected to the inner side of the lifting groove 2, providing a power source for the up-and-down movement of the lifting block 5. During the drilling process, the lifting motor 3 starts, driving the lead screw 4 to rotate in the lifting groove 2, thereby driving the lifting block 5 to move vertically along the lifting groove 2, realizing precise lifting control of the drill bit 16. With the stable up-and-down movement of the lifting block 5, the precise cooperation between the lead screw 4 and the lifting groove 2 ensures the smooth progress of the drilling operation.
[0029] The sealing mechanism includes an installation groove 8, a first sliding plate 9, a mounting base 10, and a second sliding plate 11. The installation groove 8 is located at the top of the slide 6. The first sliding plate 9 is fixedly connected to the upper side of the connecting plate 7 and is slidably connected to the inside of the installation groove 8, thereby realizing the dynamic sealing of the slide 6 by the connecting plate 7 during the lifting and lowering process.
[0030] Mounting base 10 is fixedly connected to the inner bottom of slide 6, and second slide plate 11 is fixedly connected to the top of connecting plate 7. The bottom end of second slide plate 11 is slidably connected to the inner side of mounting base 10, which further enhances the sealing effect and prevents impurities such as sand and gravel from entering lifting groove 2.
[0031] The fixed plate 12 is fixedly connected with the connecting plate 7 and the reinforcing rod placed obliquely, which enhances the stability of the connecting plate 7 and ensures that the plugging mechanism can continuously and effectively work.
[0032] The drill bit 16 is made of alloy material and has high hardness and wear resistance, which can effectively penetrate soft surrounding rock.
[0033] The protection mechanism includes a fixed ring 18, a connecting ring 19, a protection frame 20 and a protection net 21. The fixed ring 18 is fixedly connected to the outer end of the protection cylinder 17. The connecting ring 19 is sleeved on the outer side of the drill pipe 15 and is close to the drill bit 16, forming a comprehensive protection barrier for the drill pipe 15. The protection frame 20 is fixedly connected between the fixed ring 18 and the connecting ring 19, providing a stable support structure for the protection net 21. The protection net 21 is fixedly connected to all gaps between the protection frame 20, the fixed ring 18 and the connecting ring 19.
[0034] The protection net 21 is a meshed hollow structure made of metal material and has elasticity. The meshed hollow structure made of metal material and the elastic property of the protection net 21 can effectively block sand and stone debris and protect the drill pipe 15 from damage.
[0035] The working principle of the soft surrounding rock drilling device for preventing sand and stone intake based on the embodiment is that when the device is drilling in soft surrounding rock, sand and other impurities can easily enter the lifting groove 2 through the gap, threatening the normal operation of the device. In order to effectively block these impurities, the plugging mechanism is ingeniously installed between the sliding groove 6 and the connecting plate 7. During operation, the first sliding plate 9 slides in the sliding groove 6 with the connecting plate 7, while the second sliding plate 11 moves synchronously in the mounting seat 10. This design forms a dynamic plugging barrier, so that the connecting plate 7 can achieve plugging effect for the sliding groove 6 at all times during the drilling process of the drill bit 16, effectively preventing sand and other impurities from entering the lifting groove 2, thereby maintaining the cleanliness and smoothness of the lifting structure part of the device.
[0036] At the same time, the protection mechanism focuses on protecting the drill pipe 15 from sandstone debris, and the drill pipe 15 needs to penetrate the rock layer during the drilling process, and the rebound of the sandstone debris is easy to cause damage to the drill pipe 15, in order to protect the drill pipe 15, the protection mechanism is arranged between the protection cylinder 17 outside the drill pipe 15 and the drill bit 16, and the larger stones are blocked by the protection frame 20, and the protection net 21 adopts a metal mesh structure and has good elasticity and strength, therefore the smaller stones are flexibly blocked and bounced off by the protection net 21, so as to avoid the direct contact of the drill pipe 15 with the sandstone, and also avoid the sandstone from entering through the gap between the drill pipe 15 and the protection cylinder 17, greatly reducing the wear degree of the drill pipe 15, so that the sealing mechanism ensures the cleanliness and smoothness of the lifting structure, provides a stable environment for the drilling operation, cooperates with the protection mechanism to protect the drill pipe 15 from the damage of the sandstone debris, prolongs the service life of the drill pipe 15, and the two are matched with each other, so that the drilling device can be efficiently and safely operated in the soft surrounding rock environment.
[0037] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A drilling device for preventing sand and gravel ingress into weak surrounding rock, characterized in that: The system includes a pole (1), with a lifting groove (2) on its inner side. A lifting motor (3) is fixedly connected to the top of the pole (1), and a lead screw (4) is fixedly connected to the lower side of the lifting motor (3). A lifting block (5) is threaded onto the outer side of the lead screw (4), and the lifting block (5) is slidably connected to the inner side of the lifting groove (2). A sliding groove (6) is provided on the outer side of the pole (1), and the sliding groove (6) is connected to the lifting groove (2). A connecting plate (7) is fixedly connected to the outer side of the lifting block (5), and the connecting plate (7) is slidably connected to the inner side of the sliding groove (6). The sliding groove (6) is connected to the connecting plate (7). A sealing mechanism is installed between the plates (7); a fixing plate (12) is fixedly connected to the outside of the connecting plate (7), a protective shell (13) is fixedly connected to the outside of the fixing plate (12), a drilling motor (14) is fixedly connected to the inside of the protective shell (13), a drill rod (15) is fixedly connected to the lower side of the drilling motor (14), a drill bit (16) is fixedly connected to the bottom end of the drill rod (15), a protective cylinder (17) is fixedly connected to the lower side of the protective shell (13), and the drill rod (15) is located inside the protective cylinder (17). A protective mechanism is installed between the drill bit (16) and the protective cylinder (17).
2. The drilling device for preventing sand and gravel ingress in weak surrounding rock according to claim 1, characterized in that: The lead screw (4) is rotatably connected to the inside of the lifting groove (2).
3. A drilling device for preventing sand and gravel ingress in weak surrounding rock according to claim 1, characterized in that: The sealing mechanism includes an installation groove (8), a first sliding plate (9), a mounting base (10), and a second sliding plate (11). The installation groove (8) is opened at the top of the slide groove (6). The first sliding plate (9) is fixedly connected to the upper side of the connecting plate (7), and the first sliding plate (9) is slidably connected to the inside of the installation groove (8).
4. A drilling device for preventing sand and gravel ingress into weak surrounding rock according to claim 3, characterized in that: The mounting base (10) is fixedly connected to the bottom inner side of the slide groove (6), the second slide plate (11) is fixedly connected to the top of the connecting plate (7), and the bottom end of the second slide plate (11) is slidably connected to the inner side of the mounting base (10).
5. A drilling device for preventing sand and gravel ingress into weak surrounding rock according to claim 1, characterized in that: The fixing plate (12) and the connecting plate (7) are fixedly connected to the inclined reinforcing rod.
6. A drilling device for preventing sand and gravel ingress in weak surrounding rock according to claim 1, characterized in that: The drill bit (16) is made of alloy material.
7. A drilling device for preventing sand and gravel ingress into weak surrounding rock according to claim 1, characterized in that: The protective mechanism includes a fixing ring (18), a connecting ring (19), a protective frame (20), and a protective net (21). The fixing ring (18) is fixedly connected to the outside of the end of the protective cylinder (17). The connecting ring (19) is sleeved on the outside of the drill rod (15) and is close to the drill bit (16). The protective frame (20) is fixedly connected between the fixing ring (18) and the connecting ring (19). The protective net (21) is fixedly connected in all the gaps between the protective frame (20), the fixing ring (18), and the connecting ring (19).
8. A drilling device for preventing sand and gravel ingress into weak surrounding rock according to claim 7, characterized in that: The protective net (21) is a mesh-like hollow structure made of metal material, and the protective net (21) is elastic.