Energy-saving anchor rod limiting device for mine operation

Abstract

The energy-saving type anchor rod limiting device comprises a hollow limiting body, a rubber sleeve and a supporting plate, a plurality of through grooves are formed in the middle of the limiting body, the lower ends of the through grooves are inclined planes, and the inclined planes extend towards the lower portion of the outer side of the limiting body. A dustproof mechanism used for blocking drilling dust is arranged on the inner side of the limiting body. Compared with the prior art, the limiting device has the advantages that the overall length of the limiting body can be adjusted by adjusting the supporting plate at the upper end, the drilling depth can be controlled when the limiting body is arranged at the position of a bayonet device of the roof bolter in a sleeving mode, and therefore the roof bolter can conduct standard-depth drilling, energy saving of drilling construction of the roof bolter is achieved, and the drilling efficiency of the roof bolter is improved. And meanwhile, dust falling from a drill hole of the roof bolter is cleaned in time through the dustproof mechanism, the lower end of the limiting main body can be stably arranged on a bayonet device of the roof bolter in a sleeving mode, and stability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy-saving mining equipment, in particular to an energy-saving anchor rod limiting device used for mining operations. Background Art

[0002] In the process of mining, supporting the tunnels by anchor rods and anchor cables is a necessary technical means for mining and construction. Anchor rods are the most basic component of tunnel support in contemporary coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock supports itself. Commonly used anchor bolters cannot control the drilling depth well during the drilling process (such as: the drill rod length is 3M, the anchor rod length is 2.6M, and the exposed length of the anchor rod is 20CM). In order to ensure that the drilling depth can fully install the anchor rod, the drilling depth will inevitably be deepened. The drilling operation of the additional drilling depth beyond the standard drilling depth is a waste of the drilling construction operation of the anchor bolter, which is not conducive to energy saving of mining equipment. Utility Model Content

[0003] The purpose of the utility model is to provide an energy-saving anchor limit device for mining operations to solve the deficiencies of the prior art mentioned in the above-mentioned background technology. The device can adjust the overall length of the limit body by adjusting the support plate at the upper end. When the limit body is sleeved on the position of the anchor machine's bayonet, the drilling depth can be controlled, so that the anchor machine can drill holes at a standard depth, thereby achieving energy saving in the drilling construction of the anchor machine. At the same time, the dust prevention mechanism can promptly clean the dust dropped from the drilling of the anchor machine, so that the lower end of the limit body can be firmly sleeved on the position of the anchor machine's bayonet to enhance stability.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: including a hollow limiting body, a rubber sleeve and a support plate, a plurality of through grooves are arranged in the middle of the limiting body, and the lower end of the through groove is an inclined surface, and the inclined surface extends downwardly to the outer side of the limiting body, and a dustproof mechanism for blocking drilling dust is arranged inside the limiting body;

[0005] The dustproof mechanism includes a clamping ring, a rubber sleeve and a supporting assembly that are engaged with the inner wall of the limiting body and can slide up and down. The inner side of the clamping ring is provided with a rubber sleeve that fits the inner wall of the clamping ring. The middle part of the rubber sleeve is provided with a through hole I for the drill rod of the anchor bolt machine to pass through, and the diameter of the through hole I is the same as the diameter of the drill rod. A pair of fixed buckles I that are engaged with the edge of the rubber sleeve are provided on the inner wall of the clamping ring. A plurality of fixed buckles II that extend into the through groove are provided on the outer side of the clamping ring, and the outer end of the fixed buckle II is engaged with the outer edge of the through groove;

[0006] A pair of symmetrically arranged support components are arranged on the lower side of the clamping ring, and the support components and the fixing buckle I are arranged in an alternating manner.

[0007] Preferably, the support assembly includes a base and a support portion fixed on the inner wall of the limiting body, and the base is located at the top end of the inclined surface that penetrates the lower end of the groove.

[0008] Preferably, a support portion is provided on the upper side of the base, the outer wall of the support portion and the inner wall of the retaining ring are located on the same arc-shaped surface, and the support portion is provided with a plurality of support tips extending toward the inner side of the limiting body, the thickness of the support tips gradually decreases toward the inner side of the limiting body, and the top surface of the support tips is attached to the bottom surface of the rubber sleeve.

[0009] Preferably, support plates are provided at the upper and lower ends of the limiting body, and the support plate is penetrated by a through port II connected to the limiting body. The support plate at the upper end is assembled and disassembled with the limiting body through a threaded structure.

[0010] Preferably, an even number of fixing buckles II extending into the through groove are evenly distributed on the circumference of the outer side of the clamping ring.

[0011] Preferably, an odd number of fixing buckles II extending into the through groove are evenly distributed on the circumference of the outer side of the clamping ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The support plate at the upper end is assembled and disassembled with the limit body through the threaded structure, so that the overall length of the limit body can be flexibly adjusted, the drilling depth of the anchor bolt machine can be adjusted, the exposed length of the anchor bolt installation can be adjusted, and the drilling energy-saving effect of the anchor bolt machine can be achieved.

[0014] 2. With the base located at the top of the inclined surface at the lower end of the through-groove, when the anchor bolt machine drives the support tip to resonate during the drilling process, the vibration intensity received by the limit body located at the inclined surface at the lower end of the through-groove is high, which makes it easier for dust at the lower end of the through-groove to fall along the inclined surface to the outside of the limit body.

[0015] 3. The thickness of the support tip is gradually reduced in the direction of extension to the inner side of the limiting body, so that when the anchor bolt machine drives the support tip to resonate during the drilling process, the vibration amplitude generated by the thinner end of the support tip is larger.

[0016] 4. The top surface of the support tip is attached to the bottom surface of the rubber sleeve, so that the support tip can simultaneously enhance the vibration of the rubber sleeve during the vibration process, making it easier for dust on the rubber sleeve to pass through the through groove and be discharged to the outside of the limiting body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2It is a schematic diagram of the cross-sectional structure of the limiting main body of the utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the dustproof mechanism of the utility model.

[0020] Figure 4 It is a schematic diagram of the explosion structure of the dust-proof mechanism of the utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the support assembly of the utility model.

[0022] In the figure: 1. limiting body, 11. through groove, 12. support plate, 2. dustproof mechanism, 21. clamping ring, 211. fixing buckle I, 212. fixing buckle II, 22. rubber sleeve, 23. support assembly, 231. base, 232. support part, 2321. support tip. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See attached Figure 1 To Attachment Figure 5 The energy-saving anchor rod limiting device for mining operation comprises a hollow limiting body 1, a rubber sleeve 22 and a support plate 12. A plurality of through grooves 11 are arranged in the middle of the limiting body 1, and the lower end of the through groove 11 is inclined, and the inclined surface extends downwardly to the outer side of the limiting body 1. A dust-proof mechanism 2 for blocking drilling dust is arranged inside the limiting body 1;

[0025] The dustproof mechanism 2 includes a clamping ring 21, a rubber sleeve 22 and a support assembly 23 which are engaged with the inner wall of the limiting body 1 and can slide up and down. The inner side of the clamping ring 21 is provided with a rubber sleeve 22 which is attached to the inner wall of the clamping ring 21. A through hole I is provided in the middle of the rubber sleeve 22 for the drill rod of the anchor bolt machine to pass through, and the diameter of the through hole I is the same as the diameter of the drill rod. A pair of fixing buckles I 211 which are engaged with the edge of the rubber sleeve 22 are provided on the inner wall of the clamping ring 21. A plurality of fixing buckles II 212 which extend into the through groove 11 are provided on the outer side of the clamping ring 21, and the outer end of the fixing buckle II 212 is engaged with the outer edge of the through groove 11.

[0026] A pair of symmetrically arranged support components 23 are arranged on the lower side of the clamping ring 21, and the support components 23 and the fixing buckles Ⅰ 211 are arranged in an alternating manner.

[0027] The support assembly 23 includes a base 231 and a support portion 232 fixed on the inner wall of the limiting body 1. The base 231 is located at the top of the inclined surface at the lower end of the through-groove 11, so that when the anchor bolt machine drives the support tip 2321 to resonate during the drilling process, the vibration intensity received by the limiting body 1 at the inclined surface at the lower end of the through-groove 11 is high, which facilitates the dust at the lower end of the through-groove 11 to fall along the inclined surface to the outside of the limiting body 1.

[0028] A support portion 232 is provided on the upper side of the base 231, and the outer wall of the support portion 232 and the inner wall of the retaining ring 21 are located on the same arc surface. A plurality of support tips 2321 extending toward the inner side of the limiting body 1 are provided on the support portion 232, and the thickness of the support tip 2321 gradually decreases toward the inner side of the limiting body 1, so that when the anchor bolt machine drives the support tip 2321 to resonate during the drilling process, the vibration amplitude generated by the thinner end of the support tip 2321 is larger, and the top surface of the support tip 2321 is attached to the bottom surface of the rubber sleeve 22, so that the support tip 2321 can simultaneously strengthen the vibration of the rubber sleeve 22 during the vibration process, so that the dust on the rubber sleeve 22 can be discharged to the outside of the limiting body 1 through the through groove 11.

[0029] Support plates 12 are provided at the upper and lower ends of the limiting body 1. The support plate 12 is penetrated by a through port II which is connected with the limiting body 1. The support plate 12 at the upper end is assembled and disassembled with the limiting body 1 through a threaded structure, which is convenient for flexibly adjusting the overall length of the limiting body 1, adjusting the drilling depth of the anchor bolt machine, facilitating adjustment of the exposed length of the anchor bolt installation, and realizing the energy-saving effect of drilling of the anchor bolt machine.

[0030] Preferably, an even number of fixing buckles II 212 extending into the through groove 11 are evenly distributed on the outer side of the clamp ring 21. Specifically, the number of the fixing buckles II 212 may be 4, 6 or 8.

[0031] Preferably, an odd number of fixing buckles II 212 are evenly distributed on the outer side of the clamp ring 21 and extend into the through groove 11. Specifically, the number of the fixing buckles II 212 can be 3, 5 or 7.

[0032] The use of this utility model:

[0033] When using the utility model, firstly, the limit body 1 is sleeved on the position of the bolter bayonet, and then the drill rod is inserted into the limit body 1 from the upper end of the limit body 1 and installed on the bolter, and the upper end support plate 12 is rotated to adjust the overall length of the limit body 1. During the drilling process of the bolter, the dust falling from the lower side is blocked by the rubber sleeve 22. At the same time, when the vibration of the bolter drives the support tip 2321 to resonate, the support tip 2321 strengthens the vibration of the rubber sleeve 22, so that the dust on the rubber sleeve 22 is The soil is discharged out of the limiting body 1 along the through groove 11. At the same time, the support tip 2321 strengthens the vibration intensity at the lower end of the through groove 11 on the limiting body 1, accelerates the dust on the lower end inclined surface of the through groove 11 to fall to the outside of the limiting body 1, and prevents dust from entering the lower side of the rubber sleeve 22. The lower end of the limiting body 1 and the anchor machine bayonet sleeve position are protected, so that the limiting body 1 is firmly sleeved, and the drilling operation is carried out until the upper support plate 12 is against the tunnel wall, and the anchor machine completes the drilling of the standard depth.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions are deemed to be within the scope of protection of the present invention.

Claims

1. An energy-saving anchor bolt limiting device for use in mining operations, comprising a hollow limiting body (1), a rubber sleeve (22) and a support plate (12), characterized in that: A plurality of through grooves (11) are arranged in the middle of the limiting body (1), and the lower ends of the through grooves (11) are inclined, and the inclined surface extends downwardly to the outside of the limiting body (1), and a dustproof mechanism (2) for blocking drilling dust is arranged on the inside of the limiting body (1); The dustproof mechanism (2) comprises a clamping ring (21) which is engaged with the inner wall of the limiting body (1) and can slide up and down, a rubber sleeve (22) and a supporting assembly (23); the inner side of the clamping ring (21) is provided with a rubber sleeve (22) which is in contact with the inner wall of the clamping ring (21); the middle part of the rubber sleeve (22) is provided with a through hole I for the drill rod of the anchor bolt machine to pass through, and the diameter of the through hole I is the same as the diameter of the drill rod; the inner wall of the clamping ring (21) is provided with a pair of fixing buckles I (211) which are engaged with and fixed to the edge of the rubber sleeve (22); the outer side of the clamping ring (21) is provided with a plurality of fixing buckles II (212) which extend into the through groove (11), and the outer end of the fixing buckle II (212) is engaged with the outer edge of the through groove (11); A pair of symmetrically arranged support components (23) are arranged on the lower side of the clamping ring (21), and the support components (23) and the fixing buckle I (211) are arranged in a staggered manner.

2. The energy-saving anchor rod limiting device for mining operations according to claim 1 is characterized in that: The support assembly (23) comprises a base (231) and a support portion (232) fixed on the inner wall of the limiting body (1); the base (231) is located at the top of the inclined surface at the lower end of the through slot (11).

3. The energy-saving anchor rod limiting device for mining operations according to claim 2 is characterized in that: A support portion (232) is provided on the upper side of the base (231); the outer wall of the support portion (232) and the inner wall of the clamping ring (21) are located on the same arc-shaped surface; the support portion (232) is provided with a plurality of support tips (2321) extending inwardly of the limiting body (1); the thickness of the support tips (2321) gradually decreases in the direction of extension inwardly of the limiting body (1); and the top surface of the support tips (2321) is in contact with the bottom surface of the rubber sleeve (22).

4. The energy-saving anchor rod limiting device for mining operations according to claim 1 is characterized in that: The upper and lower ends of the limiting body (1) are provided with support plates (12), and the support plate (12) is penetrated by a through opening II which is in communication with the limiting body (1). The support plate (12) at the upper end is assembled and disassembled with the limiting body (1) through a threaded structure.

5. The energy-saving anchor rod limiting device for mining operation according to claim 1 is characterized in that: An even number of fixing buckles II (212) are evenly distributed around the circumference of the outer side of the clamping ring (21) and extend into the through groove (11).

6. The energy-saving anchor rod limiting device for mining operation according to claim 1 is characterized in that: An odd number of fixing buckles II (212) are evenly distributed around the circumference of the outer side of the clamping ring (21) and extend into the through groove (11).

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