CN212455134U - Automatic joint for drill rod - Google Patents
Automatic joint for drill rod Download PDFInfo
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- CN212455134U CN212455134U CN202021216040.7U CN202021216040U CN212455134U CN 212455134 U CN212455134 U CN 212455134U CN 202021216040 U CN202021216040 U CN 202021216040U CN 212455134 U CN212455134 U CN 212455134U
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- drill rod
- lock pin
- hole
- mounting hole
- limiting
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Abstract
The utility model relates to a drill rod automatic joint, 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 guide hole communicated with the drill rod mounting hole is arranged above the drill rod mounting hole, one end of the guide hole is open, and the other end is closed; the open end of the guide hole is provided with a 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; an included angle alpha between the central line of the guide hole and the central line of the connecting sleeve is not larger than a self-locking angle of the lock pin, 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 loading 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 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 automatic joint is related to.
Background
At present, the drill rod of a blast furnace ironmaking tapping machine is mainly connected manually, the connection modes are mainly two, one is pin connection, the other is thread connection, the pin connection is widely applied, and the drill rod cannot be pulled out due to the fact that the drill rod cannot be easily stuck. However, the pin connection needs manual insertion and extraction, the working efficiency is not high, and many enterprises have put forward the requirement of automatically replacing the drill rod of the tapping machine. Since the manual operation mode can not meet the requirement of automatically replacing the drill rod, the development of the automatic drill rod joint device is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide an automatic drill rod joint for realizing 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:
an automatic drill rod joint comprises a connecting sleeve, wherein a drill rod mounting hole is formed in the connecting sleeve, a guide hole communicated with the drill rod mounting hole is formed above the drill rod mounting hole, one end of the guide hole is open, and the other end of the guide hole is closed; the open end of the guide hole is provided with a 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; an included angle alpha between the central line of the guide hole and the central line of the connecting sleeve is not larger than a self-locking angle of the lock pin, 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 loading 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 guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism.
Optionally, the reset mechanism comprises an elastic member disposed between the stop member and the lock pin.
Optionally, a limiting hole is formed in the lock pin, and one end of the elastic piece is located in the limiting hole.
Optionally, the limiting member has a guide post extending toward the limiting hole, and an end of the elastic member away from the lock pin is sleeved on the guide post.
Optionally, the elastic member is a spring or an elastic sleeve.
Optionally, α is 0 °.
Optionally, the inlet end of the shank mounting hole is flared.
Optionally, the limiting member is detachably connected to the connecting sleeve.
Optionally, the inlet end of the drill rod mounting hole is provided with a flange, and the limiting member is detachably connected to the flange.
The beneficial effects of the utility model reside in that: the drill rod is clamped in the drill rod 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 lock pin limiting groove presses the lock pin guide surface, and the lock pin slides towards the limiting piece along the guide hole; 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 an automatic joint for a drill rod according to the present invention;
FIG. 2 is a cross-sectional view taken along line K-K of FIG. 1;
fig. 3 is a cross-sectional view K-K (α ═ 0 °) of fig. 1.
Reference numerals: the drill rod locking device 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 limiting hole 8, an elastic piece 9, a guide column 10, a flange 11, a bolt 12, a limiting piece 13, a guide hole 15 and a second guide surface 16.
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, an automatic drill rod joint includes a connecting sleeve 1, a drill rod mounting hole 6 is provided on the connecting sleeve 1, a guide hole 15 communicated with the drill rod mounting hole 6 is provided above the drill rod mounting hole 6, one end of the guide hole 15 is open, and the other end is closed; the open end of the guide hole 15 is provided with a limiting piece 13, the closed end is provided with a lock pin 3 in sliding fit with 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; an included angle alpha between the central line of the guide hole 15 and the central line of the connecting sleeve 1 is not larger than a self-locking angle of the lock pin 3, the lower end of the lock pin 3 is matched with the lock pin limiting groove 5 at the head of the drill rod 2, one side of the lock pin 3 close to the loading end of the drill rod 2 is provided with a first guide surface 4, and one side of the lock pin 3 close to the closed end is provided with a second guide surface 16; when the drill rod 2 rotates reversely and enters the drill rod mounting hole 6, the end part of the drill rod contacts the first guide surface 4 and extrudes and pushes the lock pin 3 to move towards the direction of the limiting piece 13, 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 enables the lock pin to be far away from the limiting piece 13, when the lock pin limiting groove 5 at the head of the drill rod 2 is over against the guide hole 15, the lock pin 3 enters the lock pin limiting 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 reversely rotates and exits the drill rod mounting hole 6, the lock pin limiting groove 5 contacts with the second guide surface 16 to push the lock pin 3 to move towards the limiting piece 13, 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 through the elastic piece 9, and the reset mechanism comprises the elastic piece 9 arranged between the limit piece 13 and the lock pin 3; a limiting hole 8 is formed in the lock pin 3, and one end of the elastic piece 9 is positioned in the limiting hole 8; the limiting piece 13 is provided with a guide post 10 extending towards the limiting hole 8, and one end of the elastic piece 9 far away from the lock pin 3 is sleeved on the guide post 10; the elastic member 9 may be a spring or an elastic sleeve.
Preferably, α is 0 °.
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.
In order to facilitate later maintenance, the limiting part 13 in the utility model can be detachably connected to the connecting sleeve 1; through being equipped with flange 11 at the entrance point of drill rod mounting hole 6, can dismantle the locating part 13 and connect on flange 11, in later maintenance, can realize the quick assembly disassembly of spare part in spacing hole 8.
Examples
The utility model provides a drill rod automatic joint, includes adapter sleeve 1, is equipped with drill rod mounting hole 6 on adapter sleeve 1, and the entrance point of drill rod mounting hole 6 of adapter sleeve 1 is bellmouth 7, and bellmouth 7 has the guide effect, and the smooth counterpoint of being convenient for when drill rod 2 installs and insert in the drill rod mounting hole 6 of adapter sleeve 1.
A guide hole 15 is formed above the drill rod mounting hole 6, one end of the guide hole 15 is open, the other end of the guide hole 15 is closed, an included angle between the center line of the guide hole 15 and the horizontal center line of the drill rod mounting hole 6 is alpha, alpha is larger than or equal to 0 degree and smaller than or equal to the self-locking angle of the guide hole 15, the purpose is that the included angle alpha between the center line of the guide hole 15 and the horizontal center line of the connecting sleeve 1 is not larger than the self-locking angle of the lock pin 3, the drill rod 2 has acting force on the lower surface of the lock pin 3 when rotating clockwise, but the acting force direction is always within the self-locking range, and the lock pin 3 cannot be extruded to slide towards the open end of the. Fig. 3 shows an arrangement diagram in which the included angle α between the center line of the guide hole 15 and the horizontal center line of the drill rod mounting hole 6 is 0, which is also a preferred embodiment of the present invention.
Lockpin 3 is installed to sliding fit in guide hole 15, and lockpin 3 is close to the blind end of guide hole 15, and the upper portion cooperation top is on the blind end internal planes, and lockpin 3 is close to the open end of guide hole 15 and is provided with spacing hole 8, and elastic component 9 is compression spring, and elastic component 9 one end is installed in spacing hole 8.
A flange 11 is arranged at the opening end of the outer part of the connecting sleeve 1 close to the guide hole 15, the flange 11 is connected with the connecting sleeve 1 in a welding way, and through holes are processed in the circumferential direction of the flange 11; the flange 11 is provided with a limiting piece 13, a through hole is machined in the circumferential direction of the limiting piece 13, and the through hole of the flange 11 is matched with the through hole of the limiting piece 13 and is fixedly connected through a bolt 12; the middle of one side of the limiting piece 1 facing the lock pin is provided with a guide post 10, and the other end of the elastic piece 9 is sleeved on the guide post 10.
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.
The bottom edge of the closed end of the lock pin 3 close to the guide hole 15 is chamfered to be used as a second guide surface 16, and 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.
The working principle of the automatic drill rod joint 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 part 9 is in a compression state at any time, when the drill rod mounting hole 6 of the connecting sleeve 1 is empty, the lock pin 3 is pressed against the closed end of the guide hole 15 under the action of the elastic part 9, 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 overcomes the spring force under the extrusion of the head of the drill rod 2 and moves towards the open end of the guide hole 15 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, the lock pin 3 slides to the closed end of the guide hole 15 under the action of the spring force, and because the included angle alpha between the central line of the guide, thereafter, when the drill rod 2 continues to rotate clockwise, the direction of acting force on the lock pin 3 is always in the self-locking range, and the lock pin 3 cannot be extruded to slide towards the opening end of the guide hole 15 any more, 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 overcomes the spring force under the action of extrusion force and moves towards the opening end of the guide hole 15, 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 16 of the lock pin 3.
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, 5 roof pressure lockpins 3's of lockpin spacing groove leading face, lockpin 3 slides to the open end direction of guiding hole. 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. The utility model can be used for blast furnace iron making, automatic joint of open drill rods for metal smelting and the like and other fields relating to automatic joint of drill rods.
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 (9)
1. An automatic drill rod joint 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 guide hole communicated with the drill rod mounting hole is formed above the drill rod mounting hole, one end of the guide hole is open, and the other end of the guide hole is closed; the open end of the guide hole is provided with a 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; an included angle alpha between the central line of the guide hole and the central line of the connecting sleeve is not larger than a self-locking angle of the lock pin, 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 loading 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 guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism.
2. An automatic shank adapter according to claim 1, characterized in that: the reset mechanism comprises an elastic piece arranged between the limiting piece and the lock pin.
3. An automatic shank adapter according to claim 2, characterized in that: the lock pin is provided with a limiting hole, and one end of the elastic piece is positioned in the limiting hole.
4. An automatic shank adapter according to claim 3, characterized in that: the limiting piece is provided with a guide post extending towards the limiting hole, and one end, far away from the lock pin, of the elastic piece is sleeved on the guide post.
5. An automatic shank adapter according to claim 2, characterized in that: the elastic piece is a spring or an elastic sleeve.
6. An automatic shank adapter according to claim 1, characterized in that: α is 0 °.
7. An automatic shank adapter according to claim 1, characterized in that: the inlet end of the drill rod mounting hole is in a horn mouth shape.
8. An automatic shank adapter according to claim 1, characterized in that: the locating part can be detachably connected to the connecting sleeve.
9. An automatic shank adapter according to claim 1, characterized in that: the inlet end of the drill rod mounting hole is provided with a flange, and the limiting part is detachably connected to the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216040.7U CN212455134U (en) | 2020-06-28 | 2020-06-28 | Automatic joint for drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216040.7U CN212455134U (en) | 2020-06-28 | 2020-06-28 | Automatic joint for drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455134U true CN212455134U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021216040.7U Active CN212455134U (en) | 2020-06-28 | 2020-06-28 | Automatic joint for drill rod |
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| CN (1) | CN212455134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677734A (en) * | 2020-06-28 | 2020-09-18 | 中冶赛迪技术研究中心有限公司 | Automatic joint for drill rod |
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2020
- 2020-06-28 CN CN202021216040.7U patent/CN212455134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677734A (en) * | 2020-06-28 | 2020-09-18 | 中冶赛迪技术研究中心有限公司 | Automatic joint for drill rod |
| CN111677734B (en) * | 2020-06-28 | 2024-04-30 | 中冶赛迪技术研究中心有限公司 | Automatic joint of drill rod |
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