Anchor injection device for hanging anchor rod of monorail hanging beam in underground coal mine

Abstract

The utility model discloses an anchor injection device for a hanging anchor rod of a monorail hanging beam in an underground coal mine, which relates to the technical field of coal mine equipment and comprises a fork head connected with a hanging ring and a fork handle connected with the fork head. The fork head comprises a fork head body, two fork columns extending upwards are oppositely arranged on the fork head body, and a fork groove is defined between the two fork columns; the fork grooves can be inserted into two sides of a transverse bolt at the bottom of the hanging ring; the fork handle is arranged on one side of the fork head body at the bottom of the fork groove; when the fork grooves are inserted into the two sides of the transverse bolt, the fork handle and the mounting hole are coaxially arranged; and the bottom of the fork handle is connected with a drill seat of the hydraulic anchor rod drill carriage. The drill seat of the hydraulic anchor rod drill carriage drives the fork handle to ascend and rotate, anchor injection of a hanging anchor rod provided with a hanging ring is achieved, and therefore a nut does not need to be disassembled again to install the hanging ring in the later period, the working process is simplified, meanwhile, the workload of aloft work is reduced, the probability of safety accidents is avoided, and the working efficiency is improved. And meanwhile, the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine equipment technology, and in particular to a single-rail suspension beam anchor bolt injection device for underground coal mines. Background Technology

[0002] Monorail transportation in coal mines is a common mode of transport. Its construction process typically includes the following steps: using a bolt injector (such as the bolt mixer disclosed in CN 214787472 U) in conjunction with a drilling rig to fix the suspended bolts in the drilled holes in the roof; after the bolts are installed, workers need to climb the scaffolding and manually remove the bolt nuts; then, the suspension rings are tightened onto the bolts using wrenches or long-handled tools; finally, the monorail track is hoisted onto the suspension rings.

[0003] The existing technology has the following drawbacks: 1. The process is cumbersome, requiring the removal of nuts before installing the lifting ring, resulting in numerous steps. 2. There are significant safety hazards, as underground work at height carries high risks and is prone to accidents. 3. The efficiency is low, with manual operations being time-consuming and impacting construction progress. Utility Model Content

[0004] The purpose of this utility model is to provide a single-rail hanging beam anchor injection device for coal mines, which can simultaneously fix the hanging ring during anchor installation, eliminating the need for manual climbing.

[0005] To achieve the above objectives, this utility model provides a coal mine monorail lifting beam anchor bolt injection device, including a fork head for connecting to a lifting ring and a fork handle connected to the fork head; the fork head includes a fork head body, on which two upwardly extending fork posts are arranged opposite each other, forming a fork groove between the two fork posts; the fork groove can be inserted into both sides of the bottom transverse bolt of the lifting ring; the fork handle is located on one side of the fork head body located at the bottom of the fork groove; when the fork groove is inserted into both sides of the transverse bolt, the fork handle is coaxially arranged with the mounting hole; the bottom of the fork handle is connected to the drill seat of the hydraulic anchor bolt drilling rig.

[0006] With the above structure, the fork head is connected to the transverse bolt, while the fork handle is connected to the drill base of the hydraulic anchor bolt drilling rig. The drill base of the hydraulic anchor bolt drilling rig drives the fork handle to rise and rotate, thereby driving the fork head to rise and rotate, and in turn driving the transverse bolt to rise and rotate. This achieves the anchoring of the suspended anchor bolt with the suspension ring already installed, eliminating the need to disassemble the nut and reinstall the suspension ring later. This simplifies the workflow, reduces the workload of high-altitude operations, avoids the probability of safety accidents, and improves work efficiency.

[0007] Preferably, the fork post has a guide ramp that slopes inward into the fork groove at the entrance position of the fork groove. This structure allows for easy insertion of the transverse bolt into the fork groove.

[0008] Preferably, the width of the fork slot is the same as the diameter of the transverse bolt. This design ensures that the fork slot can be inserted into both sides of the transverse bolt without creating excessive gaps, thus increasing the contact area between them.

[0009] Preferably, the width of the fork is the same as the width of the through hole at the bottom of the hanging ring; when the fork is inserted into the through hole, it is limited by the side walls on both sides of the through hole. Through this structural design, it is ensured that when the fork is inserted into the through hole, it is limited by the side walls on both sides of the through hole, so that the fork handle is coaxially set with the mounting hole.

[0010] Preferably, the position where the groove wall of the fork contacts the transverse bolt is a plane.

[0011] Preferably, the fork handle has a polygonal structure, and the drill bit is provided with a slot that matches it, with the fork handle being inserted into the slot for a limiting position.

[0012] Preferably, the fork groove has a U-shaped groove structure.

[0013] Preferably, the fork head and fork column are separate structures; the fork head and fork column are detachably connected.

[0014] Preferably, the bottom of the fork head body is provided with a threaded hole facing downward at the connection position with the fork post; the top of the fork post is provided with a threaded post that is inserted into the threaded hole and threadedly connected thereto.

[0015] Preferably, the bottom of the fork head body is provided with an upper slot with the opening facing downward at the connection position with the fork post; a lower slot is provided on the fork post corresponding to the upper slot; both the upper slot and the lower slot are polygonal structures, and the upper slot and the lower slot are connected by a polygonal connecting post.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] This utility model provides an anchoring device for monorail beams in coal mines, which solves the technical problem that the existing monorail beam anchoring work in coal mines is cumbersome, involves high-altitude operations, and increases the probability of safety accidents. This utility model can simultaneously fix the hanging ring during anchor installation, eliminating the need for manual climbing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the anchor bolt injection device and the hanging ring of a single-rail lifting beam in a coal mine.

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of a single-rail suspension beam anchor bolt injection device for underground coal mines;

[0020] Figure 3This is a schematic diagram of the structure of a single-rail suspension beam anchor bolt injection device for underground coal mines in Embodiment 2;

[0021] Figure 4 This is a structural schematic diagram of a detachable connection method between the fork head and the fork column in Embodiment 3;

[0022] Figure 5 This is a structural schematic diagram of another detachable connection method between the fork head and the fork column in Embodiment 3.

[0023] In the diagram, 1 is the hanging ring, 11 is the mounting hole, 12 is the transverse bolt, 21 is the fork head, 22 is the fork handle, 211 is the fork post, and 212 is the guide ramp. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] The orientations mentioned in this specification are based on the orientation of the coal mine monorail hoisting anchor bolt injection device when it is working normally. They do not limit the orientation during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.

[0026] like Figure 1 and Figure 2 As shown, a single-rail suspension beam anchor bolt injection device for coal mines is used to inject and anchor a suspension anchor bolt with a suspension ring 1 installed into a drilled hole at the top of the coal mine. The suspension ring 1 includes a suspension body with an open bottom forming a through hole. A mounting hole 11 is provided on the top of the suspension body opposite the through hole. The mounting hole 11 is a threaded hole adapted to the bottom threaded section of the suspension anchor bolt; the mounting hole 11 is a blind hole. The bottom threaded section of the suspension anchor bolt passes into the mounting hole 11, and the two are screwed together for fixation. Connecting holes are respectively provided on both sides of the through hole on the suspension body; transverse bolts 12 are installed in the connecting holes, and the transverse bolts 12 close the through hole.

[0027] Example 1:

[0028] This embodiment discloses a single-rail suspension beam anchor bolt injection device for coal mines, including a fork head 21 for connecting to a suspension ring 1 and a fork handle 22 connected to the fork head 21. The fork head 21 supports the suspension ring 1 and includes a fork head body with two upwardly extending fork posts 211 arranged opposite each other on the fork head body, forming a fork groove between the two fork posts 211; the fork groove can be inserted into both sides of the transverse bolt 12 at the bottom of the suspension ring 1. In actual production, a fork post 211 is welded to each of the top sides of the fork handle 22, with the top of the fork post 211 protruding from the top of the fork handle 22, thereby forming a fork groove structure with higher sides and a lower middle. To save materials, in this embodiment, the fork handle 22 and the fork post 211 are made by cutting scrap drill rods.

[0029] The width of the fork slot is the same as the diameter of the transverse bolt 12, thus ensuring that the fork slot can be inserted into both sides of the transverse bolt 12 without creating excessive gaps, thereby increasing the contact area between the two. In order to facilitate the insertion of the transverse bolt 12 into the fork slot, a guide ramp 212 inclined inward into the fork slot is provided on the fork post 211 at the entrance position of the fork slot.

[0030] To increase the contact area between the fork groove and the transverse bolt 12, the contact point between the groove wall and the transverse bolt 12 is a plane. In this embodiment, the fork post 211 has a hexagonal structure, with one plane forming the groove wall of the fork groove.

[0031] The fork handle 22 is located on one side of the fork head body at the bottom of the fork groove. When the fork groove can be inserted into both sides of the transverse bolt, the fork handle 22 is coaxial with the mounting hole 11. To ensure that the two are always coaxial and reduce the difficulty of adjustment, the width of the fork post 211 is the same as the width of the through hole. When the fork groove is inserted into both sides of the transverse bolt 12 at the bottom of the hanging ring 1, the fork post 211 is limited by the side walls on both sides of the through hole on the hanging body, thereby ensuring that the fork handle 22 is coaxial with the mounting hole 11. The bottom of the fork handle 22 is mounted on the drill base of the hydraulic anchor drilling rig.

[0032] The specific installation method can be mechanical clamping. For example, a chuck is provided on the drill base, and the fork handle 22 is inserted into the chuck. The chuck clamps the fork handle 22, thus fixing the device to the drill base. To simplify the device, this embodiment can also use a plug-in limiting function for installation. For example, patent CN 214787472 U discloses that a third groove is opened in the center of the drill base, and the anchor rod stirring device is fixedly connected to the third groove through a transmission rod, so that the drill base drives the anchor rod stirring device to rotate. This is also achieved through a plug-in limiting function. In this embodiment, to simplify the device, the fork handle 22 can be directly inserted into the groove. The fork handle 22 is a polygonal structure. In this embodiment, it is set as a hexagonal structure. The size of the hexagonal structure can refer to the size of the nut at the bottom of the original hanging anchor rod. Similarly, the shape and size of the groove are adapted to the hexagonal structure, so as to ensure that the fork handle 22 can be inserted into the groove of the drill base. At the same time, the hexagonal limiting function allows the fork handle 22 to rotate with the drill base.

[0033] This utility model discloses a method for using a monorail hoisting anchor bolt injection device for underground coal mines.

[0034] After drilling is completed, the drill rod is removed from the drill seat of the hydraulic anchor drilling rig, and then the assembled hanging anchor (with the tray, nut, and hanging ring 1) is assembled onto the hanging anchor. Then, the anchoring agent is manually put into the borehole, and the upper end of the hanging anchor is inserted into the borehole and pushed upwards until it can be installed with the drill seat.

[0035] Install the device onto the drill base, then insert the fork 21 into the transverse bolt 12. The rise of the drill base of the hydraulic anchor drilling rig pushes the suspended anchor rod deep into the borehole. The fork 21 clamps onto the transverse bolt 12. The rotation of the drill base of the hydraulic anchor drilling rig causes the transverse bolt 12 to rotate, which in turn causes the suspended anchor rod to rotate until the anchoring agent coats the anchor rod and fills the borehole gap. After completion, the drill base of the hydraulic anchor drilling rig lowers, and the fork 21 can be removed from the transverse bolt 12.

[0036] Example 2:

[0037] In order to optimize the structure and enhance its strength, this embodiment is a further improvement on the first embodiment.

[0038] like Figure 3 As shown, the fork groove has a U-shaped groove structure. That is, in this embodiment, the fork head 21 is formed by bending a hexagonal steel column, and the groove wall and bottom of the U-shaped groove are both planar structures. Therefore, when the transverse bolt 12 is supported in the fork groove, it can contact the plane, increasing the force-bearing area. The fork handle 22 is fixed to the bottom of the fork head 21 and is located at the center of the fork groove.

[0039] Example 3:

[0040] This embodiment is a further improvement upon embodiment two. For example... Figure 4 and Figure 5 As shown in the figure, in this embodiment, the fork head 21 and the fork post 211 are separate structures; the fork head 21 and the fork post 211 are detachably connected.

[0041] One detachable connection method between the fork head 21 and the fork post 211 is as follows: the bottom of the fork head 21 is provided with a threaded hole with the opening facing downward at the connection position with the fork post 211; the top of the fork post 211 is provided with a threaded post that is inserted into the threaded hole and threadedly engaged with it.

[0042] Another detachable connection method between the fork head 21 and the fork column 211 is as follows: an upper slot with a downward opening is provided at the bottom of the fork head body where it connects to the fork column 211; a lower slot is provided on the fork column 211 corresponding to the upper slot; both the upper and lower slots are polygonal structures, and the upper and lower slots are connected by a polygonal connecting post. This connection structure is consistent with the transmission rod method disclosed in patent CN214787472 U, both of which are connected by a plug-in method.

[0043] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A single-rail hoisting beam anchor bolt injection device for underground coal mines, characterized in that: Includes a fork head for connecting to a lifting ring and a fork handle connected to the fork head; The fork head includes a fork head body, on which two upwardly extending fork posts are arranged opposite each other, forming a fork groove between the two fork posts; the fork groove can be inserted into both sides of the transverse bolt at the bottom of the hanging ring; The fork handle is located on one side of the fork head body at the bottom of the fork groove; when the fork groove is inserted into both sides of the transverse bolt, the fork handle is coaxially arranged with the mounting hole; the bottom of the fork handle is connected to the drill base of the hydraulic anchor drilling rig.

2. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 1, characterized in that: The fork post is provided with a guide slope that is inclined toward the inside of the fork groove at the entrance position of the fork groove.

3. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 1, characterized in that: The width of the fork groove is the same as the diameter of the transverse bolt.

4. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 3, characterized in that: The width of the fork is the same as the width of the through hole at the bottom of the hanging ring; when the fork is inserted into the through hole, it is limited by the side walls on both sides of the through hole.

5. The anchor bolt injection device for a single-rail hoisting beam in a coal mine according to claim 3, characterized in that: The position where the groove wall of the fork contacts the transverse bolt is a plane.

6. The anchor bolt injection device for a single-rail hoisting beam in a coal mine according to claim 1, characterized in that: The fork handle has a polygonal structure, and the drill bit is provided with a slot that matches it. The fork handle is inserted into the slot.

7. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 1, characterized in that: The fork groove has a U-shaped groove structure.

8. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 1, characterized in that: The fork head and the fork post are separate structures; the fork head and the fork post are detachably connected.

9. The anchor bolt injection device for a single-rail hoisting beam in a coal mine according to claim 7, characterized in that: The bottom of the fork head body is provided with a threaded hole facing downward at the connection position with the fork post; the top of the fork post is provided with a threaded post that is inserted into the threaded hole and threadedly connected thereto.

10. The single-rail hoisting anchor bolt injection device for underground coal mines according to claim 7, characterized in that: The bottom of the fork head body is provided with an upper slot with an opening facing downward at the connection position with the fork post; a lower slot is provided on the fork post corresponding to the upper slot; both the upper slot and the lower slot are polygonal structures, and the upper slot and the lower slot are connected by a polygonal connecting post.

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