Roof supporting structure
By designing an anchor structure with a rotating shaft, gear, reinforcement mechanism and limiting mechanism, the problem of anchor rod squirting during the support process is solved, and a more stable roof support effect is achieved.
Patent Information
- Application Number
- CN202421227883.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the support process, existing anchor structures are susceptible to geological causes or tectonic movements, causing traversal, affecting the stability of the roof.
A top plate support structure including anchor rod, rotary shaft, gear, reinforcement mechanism, limiting mechanism, guide rod and barb are designed. By rotating the rotary shaft and gear, the anchoring effect is increased, and the guide rod and barb are used to lift the bite of reinforcement rod. and the reinforcement rod is fixed through the limiting mechanism to ensure the stable insertion and fixation of the anchor rod in the coal seam.
It effectively enhances the stability and reinforcement effect of the anchor rod, improves the support quality of the roof, and reduces the risk of the anchor rod during the support process.
Smart Images
Figure CN222254028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roof support, in particular to a roof support structure. Background Art
[0002] In order to reduce the probability of rock fall accidents and improve the stability of the tunnel structure in coal mining, support structures are usually used to support the tunnel roof to ensure the safety of production operations.
[0003] At present, when supporting the tunnel roof, workers usually set up multiple anchor rods on the roof for support. However, since the existing anchor rod structure is relatively simple, when it is supporting, it is often affected by geological causes or tectonic movements, resulting in unstable rock formations, which causes the anchor rods to move and affect the stability of the roof support. For this reason, we propose a roof support structure to solve the above problem. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a roof support structure.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A roof support structure comprises an anchor rod, the bottom end of which is connected to an anchor head, a cavity is provided inside the anchor rod, and a rotating shaft is vertically inserted inside the cavity, a reinforcement mechanism is provided on the outside of the rotating shaft, and the reinforcement mechanism comprises a gear, the gear is sleeved on the outside of the rotating shaft, tooth plates are symmetrically meshed on the sides of the gear, and reinforcement rods are distributed on the side of the tooth plates away from each other, a through groove is provided on the inner wall of the anchor rod at a position corresponding to the reinforcement rod, a rotating bar is connected to the top end of the rotating shaft, and a limiting mechanism is provided inside the rotating bar.
[0007] Preferably, the limiting mechanism comprises a limiting rod, the limiting rod is inserted into the interior of the rotating bar, and a limiting groove matched with the limiting rod is formed at the top end of the anchor rod.
[0008] Preferably, the limiting rod is configured as a U-shaped structure, and the inner side of the limiting rod is connected to the rotating bar via a spring.
[0009] Preferably, a rotating ring is sleeved on the outer side of the rotating shaft, and an annular groove matched with the rotating ring is opened on the inner wall of the anchor rod.
[0010] Preferably, guide rods are respectively inserted into the interior of the tooth plates, and both ends of the guide rods are fixedly connected to the inner wall of the cavity.
[0011] Preferably, the outer side of the reinforcement rod is symmetrically connected with barbs, and the barbs are arranged in an inclined structure.
[0012] Preferably, a thread groove is provided on the inner side of the reinforcing rod, and a threaded rod is inserted into the thread groove, and the end of the threaded rod is fixedly connected to the toothed plate.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The device is provided with a rotating shaft and a gear. When in use, the staff can rotate the rotating shaft to insert each group of reinforcement rods into the coal seam, which will increase the contact area with the coal seam to enhance the overall anchoring effect of the anchor rod, thereby effectively ensuring the stability of the anchor rod during the support process.
[0015] 2. The device is provided with a guide rod and barbs. When in use, the guide rod inserted inside the tooth plate can guide the tooth plate to ensure that the tooth plate slides stably inside the cavity. Combined with the barbs distributed on the outside of the reinforcement rod, the bite force of the reinforcement rod on the coal seam can be further enhanced, thereby further improving the reinforcement effect of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional structural schematic diagram of a roof support structure proposed by the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the three-dimensional cross section of the structure;
[0018] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;
[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional diagram of the limit rod and spring structure;
[0020] Figure 5 for Figure 1 Schematic diagram of the three-dimensional cross-section of the threaded rod and reinforcement rod structure.
[0021] In the figure: 1. anchor rod; 2. anchor head; 3. cavity; 4. rotating shaft; 5. gear; 6. tooth plate; 7. reinforcement rod; 8. rotating bar; 9. limit rod; 10. spring; 11. rotating ring; 12. guide rod; 13. threaded rod; 14. barb. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Reference Figure 1-5, a roof support structure, including an anchor rod 1, the bottom end of the anchor rod 1 is connected to an anchor head 2, the insertion step of the anchor rod 1 is a prior art, and no further description is given here. A cavity 3 is opened inside the anchor rod 1, and a rotating shaft 4 is vertically inserted inside the cavity 3. A reinforcing mechanism is provided on the outside of the rotating shaft 4, and the reinforcing mechanism includes a gear 5, the gear 5 is sleeved on the outside of the rotating shaft 4, the side of the gear 5 is symmetrically meshed with tooth plates 6, and reinforcing rods 7 are distributed on the side away from the tooth plates 6, and the end of the reinforcing rod 7 is set to a conical structure, so that it can be easily pushed into the coal seam, and a through groove is opened at the position of the inner wall of the anchor rod 1 corresponding to the reinforcing rod 7, and the extension requirement of the reinforcing rod 7 can be met by opening the through groove, the top of the rotating shaft 4 is connected to a rotating bar 8, and a limiting mechanism is provided inside the rotating bar 8.
[0024] Further, see Figure 4 It can be known that the limiting mechanism includes a limiting rod 9, which is inserted into the inside of the rotating bar 8. A limiting groove compatible with the limiting rod 9 is opened at the top of the anchor rod 1. When in use, when the anchor rod 1 is not in use, each group of reinforcement rods 7 can be embedded in the inside of the anchor rod 1. At this time, the position of the rotating bar 8 can be fixed by opening the limiting rod 9 and the limiting groove. When the anchor rod 1 is inserted into the coal seam, the staff can pull the limiting rod 9 to release the limit on the rotating bar 8, so that the rotating bar 8 can be rotated one hundred and eighty degrees to drive the rotating shaft 4 and the gear 5 to rotate at the same time, so that each group of reinforcement rods 7 can be extended to the outside of the anchor rod 1, and then the extended reinforcement rods 7 can be fixed by the limiting rod 9 and the limiting groove.
[0025] Further, see Figure 4 It can be known that the limit rod 9 is configured as a U-shaped structure, and the inner side of the limit rod 9 is connected to the rotating bar 8 through a spring 10. The limit rod 9 configured with a U-shaped structure can be convenient for the staff to pull, and combined with the connection with the spring 10, the limit rod 9 can effectively ensure the limiting effect of the rotating bar 8.
[0026] Further, see Figure 4 It can be seen that a rotating ring 11 is provided on the outer side of the rotating shaft 4, and an annular groove matched with the rotating ring 11 is opened on the inner wall of the anchor rod 1. Through the mutual cooperation of the rotating ring 11 and the annular groove, the rotating shaft 4 can be guided, thereby effectively ensuring the stability of the rotating shaft 4 during rotation.
[0027] Further, see Figure 3 and Figure 5 It can be known that guide rods 12 are inserted inside the tooth plate 6, and both ends of the guide rods 12 are fixedly connected to the inner wall of the cavity 3. When in use, the guide rods 12 inserted inside the tooth plate 6 can effectively ensure the stability of the tooth plate 6 during movement.
[0028] Further, see Figure 3 It can be seen that the outer side of the reinforcement rod 7 is symmetrically connected with barbs 14, and the barbs 14 are arranged as an inclined structure. The barbs 14 arranged by the inclined structure can effectively ensure the gripping force of the reinforcement rod 7 when inserted, thereby further realizing the reinforcement of the anchor rod 1.
[0029] Further, see Figure 5 It can be known that a threaded groove is provided on the inner side of the reinforcement rod 7, and a threaded rod 13 is inserted into the inside of the threaded groove. The end of the threaded rod 13 is fixedly connected to the tooth plate 6. Since the anchor rod 1 can be reused, when part of the reinforcement rod 7 is damaged, the staff can rotate the reinforcement rod 7. Through the mutual cooperation between the threaded groove and the threaded rod 13, the staff can easily remove the damaged reinforcement rod 7.
[0030] Working principle: When the utility model is in use, the staff can insert the anchor rod 1 into the coal seam to realize the support operation of the roof. After the anchor rod 1 is inserted to the specified depth, the staff can first pull the limit rod 9 to make its inner side withdraw from the inner wall of the anchor rod 1 to release the restriction on the rotating bar 8, and then the staff can rotate the rotating bar 8 one hundred and eighty degrees, so that it drives the rotation of the rotating shaft 4. During the rotation of the rotating shaft 4, the two sets of tooth plates 6 symmetrically distributed on its sides will move in opposite directions, so that the reinforcement rod 7 can pass through the through groove inside the anchor rod 1 and enter the coal seam. At this time, the staff can stop pulling the limit rod 9, so that its inner side is engaged with the top of the anchor rod 1 again, so as to realize the reinforcement operation of the anchor rod 1, so as to prevent the anchor rod 1 from being easily displaced during the insertion process, thereby effectively ensuring the support effect of the roof. The above is the entire working principle of the utility model.
[0031] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.
[0032] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
[0033] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.
Claims
1. A roof support structure, comprising an anchor rod (1), characterized in that: The bottom end of the anchor rod (1) is connected to an anchor head (2), a cavity (3) is provided inside the anchor rod (1), and a rotating shaft (4) is vertically inserted inside the cavity (3), a reinforcing mechanism is provided on the outside of the rotating shaft (4), and the reinforcing mechanism comprises a gear (5), the gear (5) is sleeved on the outside of the rotating shaft (4), the side of the gear (5) is symmetrically meshed with tooth plates (6), and a reinforcing rod (7) is distributed on the side of the tooth plates (6) away from each other, a through groove is provided on the inner wall of the anchor rod (1) at a position corresponding to the reinforcing rod (7), the top end of the rotating shaft (4) is connected to a rotating bar (8), and a limiting mechanism is provided inside the rotating bar (8).
2. A roof support structure according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (9), the limiting rod (9) is inserted into the interior of the rotating bar (8), and the top end of the anchor rod (1) is provided with a limiting groove matched with the limiting rod (9).
3. A roof support structure according to claim 2, characterized in that: The limiting rod (9) is configured as a U-shaped structure, and the inner side of the limiting rod (9) is connected to the rotating bar (8) via a spring (10).
4. A roof support structure according to claim 1, characterized in that: A rotating ring (11) is sleeved on the outer side of the rotating shaft (4), and an annular groove matching the rotating ring (11) is formed on the inner wall of the anchor rod (1).
5. A roof support structure according to claim 1, characterized in that: Guide rods (12) are respectively inserted into the interior of the toothed plates (6), and both ends of the guide rods (12) are fixedly connected to the inner wall of the cavity (3).
6. A roof support structure according to claim 1, characterized in that: The outer side of the reinforcement rod (7) is symmetrically connected with barbs (14), and the barbs (14) are arranged in an inclined structure.
7. A roof support structure according to claim 1, characterized in that: A thread groove is provided on the inner side of the reinforcing rod (7), and a threaded rod (13) is inserted into the thread groove. The end of the threaded rod (13) is fixedly connected to the toothed plate (6).