CN215927264U - Drilling depth limiting device for coal mine anchor rod - Google Patents
Drilling depth limiting device for coal mine anchor rod Download PDFInfo
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- CN215927264U CN215927264U CN202122556440.3U CN202122556440U CN215927264U CN 215927264 U CN215927264 U CN 215927264U CN 202122556440 U CN202122556440 U CN 202122556440U CN 215927264 U CN215927264 U CN 215927264U
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- anchor rod
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- bottom plate
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Abstract
The utility model discloses a coal mine anchor rod drilling depth limiting device which comprises a bottom plate, wherein a supporting rod is fixedly connected to the upper surface of the bottom plate, a top plate is fixedly connected to the top end of the supporting rod, sliding holes are formed in the upper surfaces of the top plate and the bottom plate, an anchor rod main body is slidably connected to the inner wall of each sliding hole, an inserting groove is formed in the bottom end of the anchor rod main body, a drill bit is inserted into the inner wall of the inserting groove, a limiting ring is slidably connected to the outer surface of the anchor rod main body, a fixing plate is fixedly connected to the top end of the anchor rod main body, and a rotating groove is formed in the upper surface of the top plate. This colliery stock drilling depth stop device, through setting up bottom plate, roof and ball, be convenient for carry out spacing rotation to the stock main part, through setting up spacing ring and adjusting bolt, be convenient for carry out spacing regulation to the degree of depth of stock main part when drilling to make whole device have the convenient effect of adjusting the spacing anchor stock main part drilling depth that carries on, and guarantee that the phenomenon of skew can not appear in the in-process of stock main part in drilling.
Description
Technical Field
The utility model relates to the technical field of coal mine anchor rod drilling, in particular to a coal mine anchor rod drilling depth limiting device.
Background
The anchor rod is the most basic component of roadway support in the contemporary coal mine, it consolidates the surrounding rocks of the roadway together, make the surrounding rocks support oneself, the anchor rod is not merely used in the mine now, is used in the engineering technology, carry on the body reinforcement to the side slope, tunnel, dam body, the anchor rod is regarded as the tension member deep into the stratum, its one end is connected with engineering structure, another end is deep into the stratum, the whole anchor rod is divided into free section and anchoring section, the free section means transmits the pulling force of the head of the anchor rod to the area of the anchoring body, its function is to exert the prestress to the anchor rod.
Traditional stock can't carry on spacingly to the stock when drilling for the staff is difficult to control the degree of depth of stock drilling, and at the in-process of drilling, and the phenomenon of drilling skew appears in the stock easily, has certain influence to the stock, and has influenced work efficiency.
The utility model provides a coal mine anchor rod drilling depth limiting device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coal mine anchor rod drilling depth limiting device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: colliery stock drilling degree of depth stop device, comprising a base plate, the last fixed surface of bottom plate is connected with the bracing piece, the top fixedly connected with roof of bracing piece, the slip hole has all been seted up to the upper surface of roof and bottom plate, the inner wall sliding connection in slip hole has the stock main part, the inserting groove has been seted up to the bottom of stock main part, the inner wall of inserting groove is pegged graft and is had the drill bit, the surface sliding connection of stock main part has the spacing ring, the top fixedly connected with fixed plate of stock main part, the rotation groove has been seted up to the upper surface of roof, the inner wall rotation in rotation groove is connected with the swivel becket.
Preferably, the two sides of the bottom plate are fixedly connected with fixing lugs, mounting holes are formed in the upper surfaces of the fixing lugs, and mounting bolts are inserted into the inner walls of the mounting holes.
Preferably, the inner wall of the sliding hole is provided with a ball, and the outer surface of the ball is overlapped with the outer surface of the anchor rod main body.
Preferably, the outer surface of the anchor rod main body is provided with a mounting threaded hole, the inner wall of the mounting threaded hole is in threaded connection with a fixing bolt, and one end of the fixing bolt extending into the anchor rod main body is lapped on the outer surface of the drill bit.
Preferably, the outer surface of the limiting ring is provided with an adjusting threaded hole, the inner wall of the adjusting threaded hole is in threaded connection with an adjusting bolt, and one end of the adjusting bolt extending into the adjusting threaded hole is lapped on the outer surface of the anchor rod main body.
Preferably, the lower surface of the rotating ring is provided with a rolling ball, and the inner bottom wall of the rotating groove is provided with a rolling groove matched with the rolling ball.
Advantageous effects
The utility model provides a coal mine anchor rod drilling depth limiting device which has the following beneficial effects:
1. this colliery stock drilling depth stop device, through setting up bottom plate, roof and ball, be convenient for carry out spacing rotation to the stock main part, through setting up spacing ring and adjusting bolt, be convenient for carry out spacing regulation to the degree of depth of stock main part when drilling to make whole device have the convenient effect of adjusting the spacing anchor stock main part drilling depth that carries on, and guarantee that the phenomenon of skew can not appear in the in-process of stock main part in drilling.
2. This colliery stock drilling depth stop device through setting up inserting groove and fixing bolt, is convenient for change and fix the drill bit, through setting up fixed ear and construction bolt, is convenient for fix whole device when driling.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic perspective view of the bottom plate of the present invention.
In the figure: the anchor rod comprises a base plate 1, a support rod 2, a top plate 3, an anchor rod main body 4, a drill bit 5, a limiting ring 6, a fixing plate 7, a rotating ring 8, a fixing lug 9, a mounting bolt 10, a ball 11, a fixing bolt 12, an adjusting bolt 13 and a rolling ball 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: colliery stock drilling degree of depth stop device, including bottom plate 1, the equal fixedly connected with in both sides of bottom plate 1 fixes ear 9, and the mounting hole has all been seted up to the upper surface of fixed ear 9, and the inner wall of mounting hole is pegged graft and is had mounting bolt 10.
The upper surface fixedly connected with bracing piece 2 of bottom plate 1, the top fixedly connected with roof 3 of bracing piece 2, the sliding hole has all been seted up to the upper surface of roof 3 and bottom plate 1, and the inner wall sliding connection in sliding hole has stock main part 4, and the inner wall in sliding hole is provided with ball 11, and the surface overlap joint of ball 11 and stock main part 4.
The inserting groove has been seted up to the bottom of stock main part 4, the inner wall of inserting groove is pegged graft and is had drill bit 5, installation screw hole has been seted up to the surface of stock main part 4, the inner wall threaded connection of installation screw hole has fixing bolt 12, fixing bolt 12 extends to the inside one end overlap joint of stock main part 4 at the surface of drill bit 5, through setting up inserting groove and fixing bolt 12, be convenient for change and fix drill bit 5, through setting up fixed ear 9 and mounting bolt 10, be convenient for fix whole device when driling.
The surface sliding connection of stock main part 4 has spacing ring 6, and the surface of spacing ring 6 has seted up the regulation screw hole, and the inner wall threaded connection of regulation screw hole has adjusting bolt 13, and adjusting bolt 13 extends to the inside one end overlap joint of regulation screw hole at the surface of stock main part 4.
Top fixedly connected with fixed plate 7 of stock main part 4, the rotation groove has been seted up to the upper surface of roof 3, the inner wall rotation in rotation groove is connected with swivel becket 8, the lower surface of swivel becket 8 is provided with roll pearl 14, the inner diapire in rotation groove sets up the roll groove with 14 looks adaptations of roll pearl, through setting up bottom plate 1, roof 3 and ball 11, be convenient for carry out spacing rotation to stock main part 4, through setting up spacing ring 6 and adjusting bolt 13, be convenient for carry out spacing regulation to the degree of depth of stock main part 4 when drilling, thereby make whole device have the effect that conveniently adjusts 4 drilling depth spacing, and guarantee that the phenomenon of skew can not appear in the in-process of stock main part 4 at drilling.
The working principle is as follows: when this ore deposit stock drilling depth stop device is used to needs, utilize earlier 6 spacing rings and adjusting bolt 13 to carry out spacing regulation to the degree of depth of stock main part 4 when drilling, then utilize fixed ear 9 and construction bolt 10 to fix whole device when driling, when drilling, utilize the bottom plate 1, roof 3 carries out spacing rotation to stock main part 4 with ball 11, thereby make whole device have the convenient effect of adjusting the stock main part 4 drilling depth spacing, and guarantee that the phenomenon of skew can not appear at the in-process of drilling stock main part 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Colliery stock drilling depth stop device, including bottom plate (1), its characterized in that: the utility model discloses a drilling machine, including bottom plate (1), the last fixed surface of bottom plate (1) is connected with bracing piece (2), top fixedly connected with roof (3) of bracing piece (2), the slip hole has all been seted up to the upper surface of roof (3) and bottom plate (1), the inner wall sliding connection in slip hole has stock main part (4), the inserting groove has been seted up to the bottom of stock main part (4), the inner wall of inserting groove is pegged graft and is had drill bit (5), the surface sliding connection of stock main part (4) has spacing ring (6), the top fixedly connected with fixed plate (7) of stock main part (4), the rotation groove has been seted up to the upper surface of roof (3), the inner wall rotation in rotation groove is connected with swivel ring (8).
2. The coal mine anchor rod drilling depth limiting device of claim 1, wherein: the mounting structure is characterized in that fixing lugs (9) are fixedly connected to the two sides of the bottom plate (1), mounting holes are formed in the upper surfaces of the fixing lugs (9), and mounting bolts (10) are inserted into the inner walls of the mounting holes.
3. The coal mine anchor rod drilling depth limiting device of claim 1, wherein: the inner wall of the sliding hole is provided with a ball (11), and the outer surface of the ball (11) is in lap joint with the outer surface of the anchor rod main body (4).
4. The coal mine anchor rod drilling depth limiting device of claim 1, wherein: the surface of stock main part (4) is seted up the installation screw hole, and the inner wall threaded connection of installation screw hole has fixing bolt (12), and fixing bolt (12) extend to the inside one end overlap joint of stock main part (4) at the surface of drill bit (5).
5. The coal mine anchor rod drilling depth limiting device of claim 1, wherein: the outer surface of the limiting ring (6) is provided with an adjusting threaded hole, the inner wall of the adjusting threaded hole is in threaded connection with an adjusting bolt (13), and the adjusting bolt (13) extends to the inner end of the adjusting threaded hole and is lapped on the outer surface of the anchor rod main body (4).
6. The coal mine anchor rod drilling depth limiting device of claim 1, wherein: the lower surface of the rotating ring (8) is provided with a rolling ball (14), and the inner bottom wall of the rotating groove is provided with a rolling groove matched with the rolling ball (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122556440.3U CN215927264U (en) | 2021-10-23 | 2021-10-23 | Drilling depth limiting device for coal mine anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122556440.3U CN215927264U (en) | 2021-10-23 | 2021-10-23 | Drilling depth limiting device for coal mine anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215927264U true CN215927264U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122556440.3U Active CN215927264U (en) | 2021-10-23 | 2021-10-23 | Drilling depth limiting device for coal mine anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215927264U (en) |
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2021
- 2021-10-23 CN CN202122556440.3U patent/CN215927264U/en active Active
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