Mine anchor cable anchor releasing device

Abstract

The utility model discloses a mine anchor cable anchor release device relates to anchor cable anchor release device technical field, the utility model discloses a cylinder body, the outer surface fixed support of cylinder body, and the top of support penetrates handle, and handle outer ring is provided with antiskid line, handle top penetrates first bolt, and first bolt is connected and fixed and takes piece hook. The utility model discloses through the setting of support, handle and antiskid line, and support provides the storage basis for handle, and the thread connection of handle and support can take piece hook and pry board compact assembly in cylinder body, solved the problem that traditional L shape metal rod slender easily loses, difficult to store, and compared with the storage in other positions, and the storage on the cylinder body is more convenient for work, and antiskid line increases the friction of palm and handle, both convenient for quickly complete the dismounting of handle and support, can also reduce the risk of hand slip and fall in the lock piece operation, and the operation safety and convenience are improved, realize the integrated storage and stable operation of piece tool.

Description

Technical Field

[0001] This utility model relates to the technical field of anchor cable unwinding devices, specifically a mining anchor cable unwinding device. Background Technology

[0002] Mining anchor cables are mainly made of high-strength steel strands. Typically, one end is fixed to the stable rock mass deep in the mine through an anchoring device, and the other end is locked to the roadway surface or support structure through an anchor. The prestress generated by tensioning is used to reinforce the surrounding rock and prevent roadway deformation or collapse. It is a key component of mine roadway support.

[0003] Anchor cable release devices are mostly hydraulically driven. Their working principle involves a hydraulic system driving a central cylinder to extend, pressing against the anchor cable and tightening it. This allows for the removal of the anchor locking plate, enabling anchor cable recovery or adjustment. They are essential tools for the maintenance and replacement of mining anchor cables.

[0004] In the existing technology, after the anchor cable retraction device extends from the middle cylinder to tension the anchor cable, the operator needs to use an L-shaped metal rod to pass through the notch of the retraction device to hook down and remove the locking plate on the anchor. However, the L-shaped metal rod is long and thin, which is not only inconvenient to store and organize, but also easy to lose due to collisions and friction when carried in the complex environment of the mine, which affects the efficiency of the retraction operation and increases the cost of tool management. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a mining anchor cable retraction device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mining anchor cable retraction device, comprising a cylinder body, a bracket fixed to the outer surface of the cylinder body, and a handle penetrating through the top of the bracket, the outer ring of the handle being provided with anti-slip texture; a first bolt penetrating through the top of the handle, and a piece-removing hook connected and fixed to the first bolt; a second bolt penetrating through the bottom of the handle, and a pry plate connected to the bottom of the second bolt.

[0007] By adopting the above technical solution, the piece-retrieving hook and pry plate are integrated into the handle and connected to the cylinder body through the bracket to form an integrated tool structure. This not only solves the problems of traditional L-shaped metal rods being difficult to store and easy to lose, but also improves the grip stability through anti-slip texture, realizing the integration and convenient operation of the piece-retrieving tool during the anchor cable removal process.

[0008] Furthermore, the handle is threadedly connected to the bracket, and the diameter of one end of the handle is larger than the diameter of the other end of the handle.

[0009] By adopting the above technical solution, the threaded connection between the handle and the bracket can be quickly assembled and disassembled, making it convenient for tool storage and retrieval; the diameter of one end of the handle is larger than that of the other end, which makes it easy to fully screw the handle into the limit position, thereby avoiding over-screwing the handle.

[0010] Furthermore, the longitudinal section of the retrieval hook is "L"-shaped, and the cross-section of the retrieval hook is circular.

[0011] By adopting the above technical solution, the L-shaped longitudinal section allows the piece-retrieving hook to hook onto the anchor locking plate, adapting to the installation angle of the locking plate; the circular cross section reduces the frictional resistance when the piece-retrieving hook passes through the notch of the anchor retraction top pressure device, facilitating flexible operation and improving piece-retrieving efficiency.

[0012] Furthermore, the first bolt is threaded to one end of the handle, and the pick-up hook is fixedly connected to the first bolt by welding.

[0013] By adopting the above technical solution, the threaded connection between the first bolt and the handle enables the disassembly of the pick-up hook, making it easy to replace the pick-up hook separately if it is damaged; the welding and fixing of the pick-up hook and the first bolt ensures the connection strength between the two, preventing the pick-up hook from falling off due to force when picking up the lock piece, thus taking into account both maintenance convenience and structural reliability.

[0014] Furthermore, the bottom of the pry bar has a sharp corner, and the pry bar is shaped like a "<".

[0015] By adopting the above technical solution, the sharp corner at the bottom of the pry plate can be easily inserted into the gap between the stuck lock plate and the anchor. The "<" shaped structure uses the lever principle to amplify the prying force, which can efficiently loosen the stuck lock plate and solve the problem of stuck lock plate that is difficult to handle with traditional tools.

[0016] Furthermore, the second bolt is threaded to the other end of the handle, and the pry plate is fixedly connected to the second bolt by welding.

[0017] By adopting the above technical solution, the threaded connection between the second bolt and the handle allows the pry bar to be disassembled and replaced separately, reducing maintenance costs; the welding and fixing of the pry bar and the second bolt ensures the structural strength when prying, preventing the pry bar from deforming or falling off under force, and ensuring effective handling of jammed locking plates.

[0018] Furthermore, a pipe is connected to one side of the cylinder body, and two quick connectors are connected to the bottom side of the cylinder body.

[0019] By adopting the above technical solution, the quick coupling facilitates the rapid connection between the cylinder and the external hydraulic system, simplifying the equipment installation process; the pipeline provides a channel for the flow of hydraulic oil, and the two quick couplings can control the inlet and outlet of hydraulic oil respectively, realizing precise control of the extension and retraction of the cylinder and adapting to the hydraulic requirements under different working conditions.

[0020] Furthermore, a middle cylinder extends through the top of the cylinder body, and an anchor-removing pressure device is connected to the top of the middle cylinder. The outer surface of the anchor-removing pressure device is provided with a notch.

[0021] By adopting the above technical solution, the middle cylinder extends under hydraulic drive, driving the anchor release and pressing device to press the anchor cable and anchorage, so that the anchor cable is tensioned to loosen the locking plate; the notch on the surface of the anchor release and pressing device provides an operating channel for the plate removal hook and pry plate, ensuring that the tools can directly contact the locking plate, creating the necessary conditions for the plate removal operation.

[0022] Furthermore, the anti-slip texture is in the form of straight stripes, diamond grid patterns, or dotted patterns.

[0023] By adopting the above technical solutions, straight stripe patterns are easy to process and clean, making them suitable for dry and dust-free environments; diamond grid patterns provide all-around anti-slip protection, adapting to multi-directional operation needs; and dotted patterns offer outstanding anti-slip effects. The three patterns can be flexibly selected according to the actual mine environment, improving operational safety.

[0024] Furthermore, the pick-up hook and pry plate are made of 40Cr alloy structural steel, and both the pick-up hook and pry plate have undergone quenching and tempering treatment.

[0025] By adopting the above technical solution, 40Cr alloy structural steel, after quenching and tempering (i.e., quenching followed by high-temperature tempering), possesses both high strength and good toughness. It can withstand the impact force of the hook during hooking and the prying plate during prying, avoiding breakage due to excessive hardness or deformation due to insufficient strength. At the same time, it enhances the wear resistance of components, extends the service life of the hook and prying plate, and adapts to the complex and heavy-duty environment of mines.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the design of a bracket, handle, and anti-slip texture, provides a storage base for the handle. The threaded connection between the handle and the bracket allows the pick-up hook and pry plate to be compactly assembled into the cylinder body, solving the problems of traditional L-shaped metal rods being thin, long, easy to lose, and difficult to store. Moreover, storing them on the cylinder body is more convenient for work than storing them in other locations. The anti-slip texture increases the friction between the palm and the handle, which not only facilitates the quick assembly and disassembly of the handle and bracket, but also reduces the risk of slipping and dropping during the pick-up operation, improving operational safety and convenience. It achieves integrated storage and stable operation of the pick-up tool.

[0028] 2. This utility model, through the setting of a piece-retrieving hook and a pry plate, features an L-shaped piece-retrieving hook that can pass through the notch of the anchor-removing top pressure device to retrieve the anchor locking piece. The pry plate works on a similar principle to a crowbar, using leverage to pry away from the energy needle and move the stuck locking piece. The combination of the two covers conventional piece-retrieving and stuck handling scenarios, making it more suitable for complex mining environments than traditional single tools, effectively improving the efficiency of anchor removal operations, and meeting the needs of more working conditions during anchor removal.

[0029] 3. This utility model, through the setting of the first bolt and the second bolt, with the first bolt welded to the take-up hook and the second bolt welded to the pry plate, and both the first bolt and the second bolt being threaded to the handle, allows for the direct removal of the first bolt or the second bolt to replace the corresponding parts when the take-up hook deforms or breaks due to the force of the take-up hook or the pry plate wears or breaks due to prying, without the need to replace the entire handle, thus greatly reducing maintenance costs and extending the overall service life of the tool; it also enables convenient replacement of vulnerable parts. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the handle structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the skid structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the handle of this utility model;

[0034] Figure 5 This is a schematic diagram of the exploded handle structure of this utility model.

[0035] In the diagram: 1. Cylinder body; 2. Quick connector; 3. Pipe; 4. Middle cylinder; 5. Anchor retraction and pressure device; 6. Notch; 7. Bracket; 8. Handle; 9. Anti-slip texture; 10. First bolt; 11. Plate removal hook; 12. Second bolt; 13. Pry bar. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A type of mining anchor cable retraction device, such as Figures 1-5As shown, the device includes a cylinder body 1, a bracket 7 fixed to the outer surface of the cylinder body 1, a handle 8 penetrating the top of the bracket 7, and the handle 8 being threadedly connected to the bracket 7. The diameter of one end of the handle 8 is larger than the diameter of the other end of the handle 8. The outer ring of the handle 8 is provided with anti-slip texture 9. The operator can grip the handle 8 with anti-slip texture 9 and use the threaded connection between the handle 8 and the bracket 7 to rotate the handle 8 to remove it from the bracket 7. The anti-slip texture 9 increases the friction between the palm and the handle 8, ensuring stable and non-slip rotation during the installation process. A first bolt 10 penetrates the top of the handle 8 and is threadedly connected to one end of the handle 8. The first bolt 10 is connected and fixed to a piece-removing hook 11, which is fixedly connected to the first bolt 10 by welding. The piece-removing hook 11 has an "L"-shaped longitudinal section and a circular cross-section. A second bolt 12 passes through the bottom of the handle 8, and the second bolt 12 is threaded to the other end of the handle 8. A pry plate 13 is connected to the bottom of the second bolt 12. The pry plate 13 is fixedly connected to the second bolt 12 by welding. The bottom of the pry plate 13 is provided with a sharp corner and the pry plate 13 is in the shape of a "<". The piece-removing hook 11 is connected to the top of the handle 8 by the first bolt 10. Its longitudinal section is L-shaped and can pass through the notch 6 on the outer surface of the anchor release top pressure device 5. The operator operates the handle 8 to drive the piece-removing hook 11, hook the locking piece on the anchor and remove it. If the locking piece is stuck and difficult to hook, the pry plate 13 connected to the bottom of the handle 8 by the second bolt 12 can be used. The pry plate 13 is similar to a crowbar and has a sharp corner at the bottom. It is inserted into the gap between the locking piece and the anchor by lever principle to pry the stuck locking piece and loosen it, so as to facilitate the subsequent operation of the piece-removing hook 11.

[0040] See Figure 1 and Figure 2 In the above embodiment, a pipe 3 is connected to one side of the cylinder body 1, and two quick connectors 2 are connected to the bottom side of the cylinder body 1. A middle cylinder 4 runs through the top of the cylinder body 1, and an anchor release pressure device 5 is connected to the top of the middle cylinder 4. The outer surface of the anchor release pressure device 5 is provided with a notch 6. The operator connects to the pipe 3 of the external hydraulic system through the quick connector 2 on one side of the cylinder body 1 to provide hydraulic power to the equipment. After the operator starts the hydraulic system, the hydraulic oil is delivered to the cylinder body 1 through the pipe 3, which drives the middle cylinder 4 to extend. The anchor release pressure device 5 at the top of the middle cylinder 4 then presses against the anchor cable and anchorage. The anchor cup, tool anchor and other components in the middle cylinder 4 gradually tighten the anchor cable, creating conditions for the subsequent removal of the anchorage locking plate.

[0041] Example 2:

[0042] Based on the above embodiment one, in order to further improve the stability and adaptability of the handle grip, the following settings are now implemented.

[0043] See Figures 1-5In the above embodiments, the anti-slip texture 9 is in the form of straight stripes, diamond grid patterns, or dot patterns. The straight stripes are distributed along the axial direction of the handle 8. Their advantages are simple processing, low production cost, suitability for mass production, and small gaps between the stripes, making it less likely to accumulate mine dust and easy to clean daily. The diamond grid pattern forms all-around friction through an interlaced grid structure. Its advantages are that it provides a stable anti-slip effect whether gripped axially or rotated circumferentially, and has high structural strength and resistance to long-term friction and wear. Its disadvantage is that dust can easily get stuck in the grid gaps, requiring regular cleaning to maintain the anti-slip performance. The dot pattern is composed of evenly distributed hemispherical protrusions or depressions. Its advantage is the best anti-slip effect. Its disadvantage is that it is easy to wear after long-term stress and has a relatively short service life.

[0044] Example 3:

[0045] Based on the above embodiment 1, in order to enhance the structural strength and fracture resistance of the pick-up hook 11 and the pry plate 13, the following settings are now adopted.

[0046] See Figures 1-5 In the above embodiments, the pick-up hook 11 and the pry plate 13 are made of 40Cr alloy structural steel. Both the pick-up hook 11 and the pry plate 13 are subjected to quenching and tempering treatment. 40Cr alloy structural steel itself contains chromium, which has good hardenability and comprehensive mechanical properties. After quenching and tempering at high temperature, its structure is transformed into tempered sorbite, which can make the pick-up hook and the pry plate obtain better structural strength, reduce bending deformation and fracture, and increase wear resistance.

[0047] The implementation principle of this utility model is as follows: First, the operator connects to the external hydraulic system pipeline 3 through the quick connector 2 on one side of the cylinder 1 to provide hydraulic power to the equipment; after the operator starts the hydraulic system, hydraulic oil is transported to the cylinder 1 through the pipeline 3, driving the middle cylinder 4 to extend. The anchor release pressure device 5 at the top of the middle cylinder 4 then presses against the anchor cable and anchorage. The anchor cup, tool anchor and other components inside the middle cylinder 4 gradually tighten the anchor cable, creating conditions for the subsequent removal of the anchorage locking plate; the anchor cup, tool anchor and other components are existing technology and are not shown in the figure.

[0048] At this point, the worker can grasp the handle 8 with anti-slip texture 9 and, utilizing the threaded connection between the handle 8 and the bracket 7, rotate the handle 8 to remove it from the bracket 7. The anti-slip texture 9 increases the friction between the palm and the handle 8, ensuring a stable and slip-free rotation installation process. There are three types of anti-slip texture 9: straight stripes, diamond grid patterns, or dot patterns. Straight stripes are simple to process and have the lowest cost, but their anti-slip effect is weak. Diamond grid patterns have high friction, but their cost is higher than straight stripes, and the numerous gaps make them prone to clogging by mine dust, affecting their anti-slip effect and requiring regular cleaning. Dot patterns have excellent anti-slip effect, but they are prone to wear. Handles 8 with different anti-slip textures 9 can be selected according to different needs or habits.

[0049] The piece-removing hook 11 is connected to the top of the handle 8 by the first bolt 10. Its longitudinal section is L-shaped and can pass through the notch 6 on the outer surface of the anchor release top pressure device 5. The operator operates the handle 8 to drive the piece-removing hook 11, hook the locking piece on the anchor and remove it. If the locking piece is stuck and difficult to hook, the pry plate 13 connected to the bottom of the handle 8 by the second bolt 12 can be used. The pry plate 13 is similar to a pry bar and has a sharp corner at the bottom. It is inserted into the gap between the locking piece and the anchor by lever principle to pry the stuck locking piece and loosen it, so that the subsequent piece-removing hook 11 can be operated.

[0050] During operation, the anti-slip texture 9 continues to function, reducing the risk of tools falling due to slippage when the operator holds the handle 8. When the pick-up hook 11 becomes deformed or broken due to long-term picking, or the pry plate 13 is worn or damaged due to prying, the first bolt 10 or the second bolt 12 can be loosened to replace the corresponding pick-up hook 11 or pry plate 13 separately, without having to replace the entire handle 8, thus reducing maintenance costs.

[0051] After the anchor removal operation is completed, the hydraulic system is reversed to retract the middle cylinder 4. The worker can then hold the handle 8 with anti-slip texture 9 and use the threaded connection between the handle 8 and the bracket 7 to rotate the handle 8 and install it on the bracket 7 on the outside of the cylinder body 1. This allows the tool hook 11 and pry plate 13 to be stored on the cylinder body 1, reducing the loss of tools in the mining environment and improving tool management efficiency.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A mining anchor cable retraction device, comprising a cylinder (1), characterized in that: A bracket (7) is fixed on the outer surface of the cylinder (1), and a handle (8) is passed through the top of the bracket (7). The handle (8) has anti-slip texture (9) on its outer ring. A first bolt (10) is passed through the top of the handle (8), and a piece-removing hook (11) is connected and fixed to the first bolt (10). A second bolt (12) is passed through the bottom of the handle (8), and a pry plate (13) is connected to the bottom of the second bolt (12).

2. The mining anchor cable retraction device according to claim 1, characterized in that: The handle (8) is threadedly connected to the bracket (7), and the diameter of one end of the handle (8) is greater than the diameter of the other end of the handle (8).

3. The mining anchor cable retraction device according to claim 1, characterized in that: The longitudinal section of the pick-up hook (11) is "L" shaped, and the cross section of the pick-up hook (11) is circular.

4. The mining anchor cable retraction device according to claim 3, characterized in that: The first bolt (10) is threaded to one end of the handle (8), and the take-up hook (11) is fixedly connected to the first bolt (10) by welding.

5. The mining anchor cable retraction device according to claim 1, characterized in that: The bottom of the pry bar (13) is provided with a sharp corner, and the pry bar (13) is in the shape of "<".

6. The mining anchor cable retraction device according to claim 5, characterized in that: The second bolt (12) is threaded to the other end of the handle (8), and the pry plate (13) is fixedly connected to the second bolt (12) by welding.

7. The mining anchor cable retraction device according to claim 1, characterized in that: A pipe (3) is connected to one side of the cylinder (1), and two quick connectors (2) are connected to the bottom side of the cylinder (1).

8. The mining anchor cable retraction device according to claim 7, characterized in that: The top of the cylinder body (1) has a middle cylinder (4) through it, and the top of the middle cylinder (4) is connected to an anchor release pressure device (5), and the outer surface of the anchor release pressure device (5) has a notch (6).

9. The mining anchor cable retraction device according to claim 1, characterized in that: The anti-slip texture (9) is in the form of straight stripes, diamond grid patterns or dot patterns.

10. The mining anchor cable retraction device according to claim 1, characterized in that: The pick-up hook (11) and pry bar (13) are made of 40Cr alloy structural steel, and both the pick-up hook (11) and pry bar (13) have undergone quenching and tempering treatment.

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