CN212455136U - Drill rod joint device - Google Patents
Drill rod joint device Download PDFInfo
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- CN212455136U CN212455136U CN202021216217.3U CN202021216217U CN212455136U CN 212455136 U CN212455136 U CN 212455136U CN 202021216217 U CN202021216217 U CN 202021216217U CN 212455136 U CN212455136 U CN 212455136U
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- drill rod
- lock pin
- hole
- guide hole
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Abstract
The utility model relates to a drill rod joint device, belonging to the technical field of drill rod replacement devices, comprising a connecting sleeve, wherein the connecting sleeve is provided with a drill rod mounting hole, a first guide hole communicated with the drill rod mounting hole is arranged above the drill rod mounting hole, one end of the first guide hole is open, and the other end is closed; the open end of the first guide hole is provided with a first limiting piece, the closed end is provided with a lock pin in sliding fit with the closed end, and when the lock pin is positioned at the closed end, the lower end of the lock pin is positioned in the drill rod mounting hole; the lower end of the lock pin is matched with a lock pin limiting groove at the head of the drill rod, a first guide surface is arranged on one side of the lock pin close to the drill rod installation end, and a second guide surface is arranged on one side of the lock pin close to the closed end; and when the lock pin limiting groove at the head of the drill rod is right aligned to the first guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism. The utility model discloses an automatic locking and separation of drill rod and adapter sleeve.
Description
Technical Field
The utility model belongs to the technical field of the device is changed to the drill rod, a drill rod piecing devices is related to.
Background
At present, the drill rod of the blast furnace ironmaking tapping machine is mainly connected by two modes of pin connection and threaded connection, and both the pin connection and the threaded connection need manual auxiliary assembly and disassembly, wherein the pin connection has the advantage of difficult occurrence of blocking to cause the drill rod to be unable to be pulled out, and the application is wider. But the pin connection has low working efficiency, and the plugging and unplugging of the lock pin are all completed manually. Because the intelligent demand of enterprises is continuously expanded, a plurality of steel enterprises propose that the drill rod is replaced by the automatic drill rod replacement to adapt to the development demand of enterprises, and the automatic drill rod replacement relates to the automatic joint problem of the drill rod, so that the problem of automatic joint can be solved only by developing a drill rod joint device.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present application is to provide a drill rod joint device to achieve automatic locking and separation of a drill rod and a connecting sleeve.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a drill rod joint device comprises a connecting sleeve, wherein a drill rod mounting hole is formed in the connecting sleeve, a first guide hole communicated with the drill rod mounting hole is formed above the drill rod mounting hole, one end of the first guide hole is open, and the other end of the first guide hole is closed; the open end of the first guide hole is provided with a first limiting piece, the closed end is provided with a lock pin in sliding fit with the closed end, and when the lock pin is positioned at the closed end, the lower end of the lock pin is positioned in the drill rod mounting hole; the lower end of the lock pin is matched with a lock pin limiting groove at the head of the drill rod, a first guide surface is arranged on one side of the lock pin close to the drill rod installation end, and a second guide surface is arranged on one side of the lock pin close to the closed end; and when the lock pin limiting groove at the head of the drill rod is right aligned to the first guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism.
Optionally, a second guide hole communicated with the first guide hole is formed above the lock pin; the reset mechanism comprises an inclined wedge block arranged at the lower end of the second guide hole, and the other end of the inclined wedge block is inserted into an inclined groove on the lock pin; the upper portion of the inclined wedge block is provided with an elastic piece, and the other end of the elastic piece is connected with a second limiting piece arranged on the upper portion of the second guide hole.
Optionally, a limiting hole is formed in the second limiting part, and the upper end of the elastic part is located in the limiting hole.
Optionally, the inclined wedge block is provided with a guide post extending towards the limiting hole, and the lower end of the elastic piece is sleeved on the guide post.
Optionally, the elastic member is a spring or an elastic sleeve.
Optionally, the first retaining member and/or the second retaining member may be detachably connected to the connection sleeve.
Optionally, the inlet end of the shank mounting hole is flared.
The beneficial effects of the utility model reside in that: the drill rod is clamped in the mounting hole through the lock pin, and the lock pin is propped against the drill rod to be fixed when the drill rod rotates clockwise; when the drill rod rotates anticlockwise, the positioning groove presses the lock pin chamfer, and the lock pin slides along the first guide hole to the first limiting direction; the automatic locking and separation between the drill rod and the connecting sleeve are realized, the existing manual assembling and disassembling of the drill rod can be replaced, the problem that the drill rod needs to be fixed in the prior art in a mode of manually inserting and pulling the lock pin is solved, the automatic replacement of the drill rod is realized, and the structure is ingenious and reliable.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a drill rod joint device of the present invention;
FIG. 2 is a cross-sectional view taken along line K-K of FIG. 1 in a shank locked condition;
fig. 3 is a cross-sectional view taken along line K-K of fig. 1 with the drill rod removed.
Reference numerals: the drill rod assembly comprises a connecting sleeve 1, a drill rod 2, a lock pin 3, a first guide surface 4, a lock pin limiting groove 5, a drill rod mounting hole 6, a bell mouth 7, a second guide surface 8, a chute 9, a wedge block 10, a guide column 11, an elastic part 12, a second flange 13, a second bolt 14, a second limiting part 15, a limiting hole 16, a first flange 17, a first bolt 18 and a first limiting part 19.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 3, a drill rod joint device includes a connecting sleeve 1, a drill rod mounting hole 6 is provided on the connecting sleeve 1, a first guiding hole communicated with the drill rod mounting hole 6 is provided above the drill rod mounting hole 6, and the first guiding hole is arranged along the transverse direction of the drill rod mounting hole 6; one end of the first guide hole is open, and the other end of the first guide hole is closed; a first limiting piece 19 is arranged at the open end of the first guide hole, a lock pin 3 in sliding fit with the closed end is arranged at the closed end, and when the lock pin 3 is positioned at the closed end, the lower end of the lock pin 3 is positioned in the drill rod mounting hole 6; the lower end of the lock pin 3 is matched with a lock pin limiting groove 5 at the head of the drill rod 2, a first guide surface 4 is arranged on one side of the lock pin 3 close to the drill rod loading end, and a second guide surface 8 is arranged on one side of the lock pin 3 close to the closed end; when the drill rod 2 rotates reversely and enters the drill rod mounting hole 6, the end part of the drill rod contacts with the first guide surface 4 to push the lock pin 3 to move towards the first limiting piece 19, so that the lock pin 3 is separated from the drill rod mounting hole 6, and the drill rod 2 enters the bottom of the drill rod mounting hole 6; the lock pin 3 is also provided with a reset mechanism which leads the lock pin to be far away from the first limit piece 19, when the lock pin limit groove 5 at the head part of the drill rod is over against the first guide hole, the lock pin 3 enters the lock pin limit groove 5 under the action of the reset mechanism, and the drill rod 2 is locked when rotating in the positive direction; when the drill rod 2 rotates reversely and exits the drill rod mounting hole 6, the lock pin limiting groove 5 contacts with the second guide surface 8 to push the lock pin 3 to move towards the first limiting piece 19, so that the lock pin 3 is separated from the drill rod mounting hole 6.
The utility model can realize the reset of the lock pin 3 by the inclined wedge structure, a second guide hole communicated with the first guide hole is arranged above the lock pin 3, the second guide hole is transversely arranged along the drill rod mounting hole 6, and the second guide hole is vertical to the first guide hole; the resetting mechanism comprises an inclined wedge block 10 arranged at the lower end of the second guide hole, and the other end of the inclined wedge block 10 is inserted into the chute 9 on the lock pin 3; the upper part of the inclined wedge block 10 is provided with an elastic piece 12, and the other end of the elastic piece 12 is connected with a second limiting piece 15 arranged at the upper part of the second guide hole; the first guide hole is a blind hole, the lock pin 3 is abutted against the inner plane of the closed end close to the upper part of the closed end of the first guide hole in a matching manner, the lock pin 3 can be limited to slide towards the direction, and the distance L between the inner end face of the first limiting part 19 located at the open end of the first guide hole and the lock pin 3 is larger than the sliding stroke of the lock pin 3 and smaller than the width of an upper opening of the chute 9 of the lock pin 3.
Preferably, the second limiting member 15 is provided with a limiting hole 16, and the upper end of the elastic member 12 is located in the limiting hole 16.
Preferably, the inclined wedges 10 have guide posts 11 extending toward the limiting holes 16, and the lower ends of the elastic members 12 are fitted over the guide posts 11.
Preferably, the elastic member 12 is a spring or an elastic sleeve
Preferably, the first limiting element 19 and/or the second limiting element 15 are detachably connected to the connecting sleeve 1.
In the drill rod mounting hole 6 of counterpointing in order to insert adapter sleeve 1 smoothly when in order to facilitate the installation of drill rod 2, the utility model discloses be horn mouth 7 with the shape design of the entrance point of drill rod mounting hole 6.
Examples
A drill rod joint device comprises a connecting sleeve 1, a drill rod mounting hole 6 is processed in the middle of the connecting sleeve 1, the inlet end of the drill rod mounting hole 6 is a bell mouth 7, so that a drill rod 2 can be smoothly aligned and inserted into the drill rod mounting hole 6 of the connecting sleeve 1 when being installed, a first guide hole is arranged above the drill rod mounting hole 6, the axial lead of the first guide hole is perpendicular to the different surface of the axial lead of the drill rod mounting hole 6, the cross section of the first guide hole is rectangular, one end of the first guide hole is open, the other end of the first guide hole is closed, a first flange 17 is arranged at the open end, the first flange 17 is welded on the side surface of the connecting sleeve 1, and a through hole is processed in the circumferential direction of the first flange; the first flange 17 is provided with a first limiting piece 19, a through hole is formed in the circumferential direction of the first limiting piece 19, and the through hole of the first flange 17 is matched with the through hole of the first limiting piece 19 and is fixedly connected through a first bolt 18; a second guide hole is processed at the upper part of the connecting sleeve 1, the second guide hole is communicated with the first guide hole, and an inclined wedge block 10 is arranged in the second guide hole; a lock pin 3 is arranged in the first guide hole in a sliding fit manner, and a chute 9 is processed at the upper part of the lock pin 3; the lower part of the wedge block 10 is matched with the chute 9 of the lock pin, and the lower part of the wedge block 10 and the chute 9 of the lock pin can interact through a matching inclined plane; the lock pin 3 is matched and propped against the inner plane of the closed end close to the upper part of the closed end of the first guide hole, the lock pin 3 can be limited to slide towards the direction, and the distance L between the inner end surface of the first limiting part 19 positioned at the open end of the first guide hole and the lock pin 3 is larger than the sliding stroke of the lock pin 3 and smaller than the width of an upper opening of the chute 9 of the lock pin, so that when the lock pin 3 moves along the first guide hole, the lower part of the wedge block 10 is always in contact with the chute 9 of the lock pin, and the lower part.
The upper portion of the connecting sleeve 1 is welded with a second flange 13, a through hole is machined in the circumferential direction of the second flange 13, a second limiting part 15 is installed on the second flange 13, a through hole is machined in the circumferential direction of the second limiting part 15, the through hole of the second flange 13 is matched with the through hole of the second limiting part 15 and is connected with the through hole through a second bolt 14, a limiting hole 16 is formed in the inner side of the second limiting part 15, and the other end of the elastic part 12 is installed in the limiting hole 16 of the second limiting part 15.
The drill rod 2 is installed in a drill rod installation hole 6 of the connecting sleeve 1, a lock pin limiting groove 5 is formed in the position, close to the head, of the drill rod 2, and the lock pin limiting groove 5 is matched with the lower surface of the lock pin 3 to lock the drill rod 2 in the drill rod installation hole 6 of the connecting sleeve 1.
In order to ensure that the drill rod 2 can smoothly contact and press the lock pin 3 to move when the drill rod is installed, the bottom edge of the outer end surface of the lock pin 3 close to the installation end of the drill rod 2 is chamfered to be used as a first guide surface 4.
In order to enable the drill rod 2 to smoothly contact and press the lock pin 3 to move when the drill rod is disassembled, the lower edge of the lock pin 3 close to the closed end of the first guide hole is chamfered to be used as a second guide surface 8.
The working principle of the drill rod joint device is as follows:
the drill rod 2 is a polished rod, and the drill rod 2 rotates in the positive direction in the working state, namely rotates clockwise; when the drill rod 2 enters or exits the drill rod mounting hole 6 of the connecting sleeve 1, the drill rod rotates reversely, namely anticlockwise.
The elastic piece 12 is in a compression state at any time, when the drill rod mounting hole 6 of the connecting sleeve 1 is empty, under the action of the elastic piece 12, the inclined wedge 10 acts on the inclined groove 9 of the lock pin, the lock pin 3 is propped against the closed end of the first guide hole, when the drill rod 2 needs to be mounted, the drill rod 2 is inserted into the drill rod mounting hole 6 under the guide action of the bell mouth 7 of the drill rod mounting hole 6, the head of the drill rod 2 is matched with the first guide surface 4 of the lock pin 3 and rotates anticlockwise, the lock pin 3 acts on the inclined wedge 10 through the inclined groove 9 under the extrusion of the drill rod head, so that the lock pin 3 overcomes the spring force, the lock pin 3 moves towards the opening end of the first guide hole until the drill rod 2 completely enters the bottom of the drill rod mounting hole 6, then the drill rod 2 rotates clockwise, the lock pin limiting groove 5 of the drill rod 2 is matched with the lower surface of the lock pin 3, at the moment, under, the inclined groove 9 acts on the lock pin 3, the lock pin 3 slides to the closed end of the first guide hole, and then when the drill rod 2 continues to rotate clockwise, the lock pin 3 cannot be extruded to slide towards the open end of the first guide hole, so that locking is realized.
When the drill rod 2 needs to be disassembled, the drill rod 2 is rotated anticlockwise, the lock pin limiting groove 5 of the drill rod 2 extrudes the second guide surface 8 of the lock pin 3 in the rotating process, the lock pin 3 acts on the inclined wedge block 10 through the inclined groove 9 under the action of extrusion force, the spring force is overcome, the lock pin moves towards the opening end of the first guide hole, and the drill rod 2 can be smoothly pulled out until the outer surface of the drill rod 2 is in contact with the second guide surface 8 of the lock pin 3.
When the internal parts such as the lock pin 3, the wedge 10, the spring and the like need to be maintained or replaced, the internal parts can be taken out after the first limiting piece 19 and the second limiting piece 15 are directly disassembled, and the installation steps are opposite to those of the internal parts.
Through the process, the drill rod 2 can be automatically mounted and dismounted, the existing manual assembling and disassembling of the drill rod 2 is replaced, and the automatic joint of the drill rod 2 is realized.
The utility model discloses a drill rod 2 passes through 3 cards of lockpin in drill rod mounting hole 6, and during 2 clockwise rotations of drill rod, lockpin 3 is withstood motionlessly, and during 2 anticlockwise rotations of drill rod, 3 chamfers of 5 roof pressure lockpins of lockpin spacing groove, lockpin 3 slides to first guiding hole open end direction. The device has an ingenious and reliable structure, can realize automatic locking and separation between the drill rod 2 and the connecting sleeve 1, and replaces the existing mode of fixing the drill rod 2 by manually plugging and unplugging the lock pin 3, thereby realizing automatic replacement of the drill rod 2.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (8)
1. A drill rod joint device is characterized in that: the drill rod connecting device comprises a connecting sleeve, wherein a drill rod mounting hole is formed in the connecting sleeve, a first guide hole communicated with the drill rod mounting hole is formed above the drill rod mounting hole, one end of the first guide hole is open, and the other end of the first guide hole is closed; the open end of the first guide hole is provided with a first limiting piece, the closed end is provided with a lock pin in sliding fit with the closed end, and when the lock pin is positioned at the closed end, the lower end of the lock pin is positioned in the drill rod mounting hole; the lower end of the lock pin is matched with a lock pin limiting groove at the head of the drill rod, a first guide surface is arranged on one side of the lock pin close to the drill rod installation end, and a second guide surface is arranged on one side of the lock pin close to the closed end; and when the lock pin limiting groove at the head of the drill rod is right aligned to the first guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism.
2. A shank joint arrangement according to claim 1, wherein: a second guide hole communicated with the first guide hole is formed above the lock pin; the reset mechanism comprises an inclined wedge block arranged at the lower end of the second guide hole, and the other end of the inclined wedge block is inserted into an inclined groove on the lock pin; the upper portion of the inclined wedge block is provided with an elastic piece, and the other end of the elastic piece is connected with a second limiting piece arranged on the upper portion of the second guide hole.
3. A shank joint arrangement according to claim 2, wherein: the second limiting part is provided with a limiting hole, and the upper end of the elastic part is located in the limiting hole.
4. A shank joint arrangement according to claim 2, wherein: the inclined wedge block is provided with a guide post extending towards the limiting hole, and the lower end of the elastic piece is sleeved on the guide post.
5. A shank joint arrangement according to claim 2, wherein: the elastic piece is a spring or an elastic sleeve.
6. A shank joint arrangement according to claim 2, wherein: the first limiting part and/or the second limiting part are detachably connected to the connecting sleeve.
7. A shank joint arrangement according to claim 1, wherein: the inlet end of the drill rod mounting hole is in a horn mouth shape.
8. A shank joint arrangement according to claim 1, wherein: the cross section of the first guide hole is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216217.3U CN212455136U (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216217.3U CN212455136U (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455136U true CN212455136U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021216217.3U Active CN212455136U (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212455136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649044A (en) * | 2020-06-28 | 2020-09-11 | 中冶赛迪技术研究中心有限公司 | Drill rod joint device |
| CN114225800A (en) * | 2021-12-10 | 2022-03-25 | 浙江金仪盛世生物工程有限公司 | Liquid preparation ultrafiltration device |
-
2020
- 2020-06-28 CN CN202021216217.3U patent/CN212455136U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649044A (en) * | 2020-06-28 | 2020-09-11 | 中冶赛迪技术研究中心有限公司 | Drill rod joint device |
| CN111649044B (en) * | 2020-06-28 | 2024-04-30 | 中冶赛迪技术研究中心有限公司 | Drill rod joint device |
| CN114225800A (en) * | 2021-12-10 | 2022-03-25 | 浙江金仪盛世生物工程有限公司 | Liquid preparation ultrafiltration device |
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