CN111649044B - Drill rod joint device - Google Patents
Drill rod joint device Download PDFInfo
- Publication number
- CN111649044B CN111649044B CN202010599590.XA CN202010599590A CN111649044B CN 111649044 B CN111649044 B CN 111649044B CN 202010599590 A CN202010599590 A CN 202010599590A CN 111649044 B CN111649044 B CN 111649044B
- Authority
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- China
- Prior art keywords
- drill rod
- lock pin
- guide hole
- hole
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
- F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a drill rod joint device, which belongs to the technical field of drill rod replacing devices and 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 first limiting piece, 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 limit groove of the drill rod head, a first guide surface is arranged on one side of the lock pin, which is close to the drill rod loading end, and a second guide surface is arranged on one side of the lock pin, which is close to the closed end; the lock pin is also provided with a reset mechanism which enables the lock pin to be far away from the first limiting piece, and when the lock pin limiting groove of the drill rod head is opposite to the first guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism. The invention realizes the automatic locking and separation of the drill rod and the connecting sleeve.
Description
Technical Field
The invention belongs to the technical field of drill rod replacing devices, and relates to a drill rod joint device.
Background
At present, the drill rod connection of the blast furnace ironmaking tapping machine mainly comprises two modes of pin connection and thread connection, and the two modes are manually assisted in loading and unloading, wherein the pin connection has the advantage of difficult occurrence of clamping and incapability of extracting the drill rod, and the application is wider. But the pin connection work efficiency is not high, and the pin insertion and extraction is completed manually. Because of the continuous expansion of the intelligent demands of enterprises, many steel enterprises propose to replace manual drill rod replacement by automatic drill rod replacement so as to adapt to the development demands of the enterprises, and the automatic drill rod replacement involves the automatic joint problem of the drill rod, so that a drill rod joint device must be developed to solve the automatic joint problem.
Disclosure of Invention
Therefore, the present application is directed to a drill rod joint device for automatically locking and separating a drill rod and a connecting sleeve.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the 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 opened, 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 first limiting piece, 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 limit groove of the drill rod head, a first guide surface is arranged on one side of the lock pin, which is close to the drill rod loading end, and a second guide surface is arranged on one side of the lock pin, which is close to the closed end; the lock pin is also provided with a reset mechanism which enables the lock pin to be far away from the first limiting piece, and when the lock pin limiting groove of the drill rod head is opposite 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 arranged 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 the chute on the lock pin; the upper part 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 at the upper part of the second guide hole. .
Optionally, a limiting hole is formed in the second limiting piece, and the upper end of the elastic piece 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 limiting piece and/or the second limiting piece are detachably connected to the connecting sleeve.
Optionally, the inlet end of the drill rod mounting hole is in a horn mouth shape.
The invention has the beneficial effects that: the drill rod is clamped in the mounting hole through the lock pin, and when the drill rod rotates clockwise, the lock pin is propped against the drill rod; when the drill rod rotates anticlockwise, the positioning groove pushes the lock pin chamfer, and the lock pin slides along the first guide hole to the first limiting direction; the automatic locking and the separation between the drill rod and the joint sleeve are realized, the existing manual assembly and disassembly drill rod can be replaced, the problem that the drill rod is required to be fixed in the prior art by 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 objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a drill rod adapter assembly of the present invention;
FIG. 2 is a cross-sectional view K-K of FIG. 1 in a shank locked state;
fig. 3 is a sectional view of fig. 1 taken along line K-K in a disassembled state of the drill rod.
Reference numerals: the drill rod 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 piece 12, a second flange 13, a second bolt 14, a second limiting piece 15, a limiting hole 16, a first flange 17, a first bolt 18 and a first limiting piece 19.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated 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 numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, a drill rod joint device comprises a connecting sleeve 1, wherein a drill rod mounting hole 6 is formed in the connecting sleeve 1, a first guide hole communicated with the drill rod mounting hole 6 is formed above the drill rod mounting hole 6, and the first guide 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 is closed; the open end of the first guide hole is provided with a first limiting piece 19, the closed end is provided with a lock pin 3 which is in sliding fit with the first limiting piece, 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 limit groove 5 at the head of the drill rod 2, a first guide surface 4 is arranged at one side of the lock pin 3 close to the drill rod loading end, and a second guide surface 8 is arranged at one side of the lock pin 3 close to the closed end; when the drill rod 2 reversely rotates to enter the drill rod mounting hole 6, the end part of the drill rod 2 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 enables the lock pin 3 to be far away from the first limiting piece 19, when the lock pin limiting groove 5 of the drill rod head is opposite to the first guide hole, 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 forwards; when the drill rod 2 reversely rotates to exit 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 invention can realize the resetting of the lock pin 3 through 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 arranged along the transverse direction of the drill rod mounting hole 6, and the second guide hole is vertical to the first guide hole; the reset 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 a 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 upper part of the locking pin 3 close to the closed end of the first guide hole is matched and propped against the inner plane of the closed end, the locking pin 3 can be limited to slide in the direction, and the distance L between the inner end surface of the first limiting piece 19 positioned at the opening end of the first guide hole and the locking pin 3 is larger than the sliding stroke of the locking pin 3 and smaller than the upper opening width of the chute 9 of the locking 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 wedge block 10 is provided with a guide post 11 extending towards the limit hole 16, and the lower end of the elastic piece 12 is sleeved on the guide post 11.
Preferably, the elastic member 12 is a spring or an elastic sleeve
Preferably, the first stop 19 and/or the second stop 15 are detachably connected to the connecting sleeve 1.
In order to facilitate the smooth alignment of the drill rod 2 during the installation for inserting the drill rod installation hole 6 of the connecting sleeve 1, the shape of the inlet end of the drill rod installation hole 6 is designed to be a horn mouth 7.
Examples
The drill rod joint device comprises a connecting sleeve 1, wherein a drill rod mounting hole 6 is formed in the middle of the connecting sleeve 1, a horn mouth 7 is formed at the inlet end of the drill rod mounting hole 6, so that a drill rod 2 is aligned smoothly and inserted into the drill rod mounting hole 6 of the connecting sleeve 1 during mounting, a first guide hole is formed above the drill rod mounting hole 6, the axial lead of the first guide hole is perpendicular to the axial lead different surface 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, one 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 formed in the circumferential direction of the first flange 17; 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; the upper part of the connecting sleeve 1 is provided with a second guide hole which is communicated with the first guide hole, and an inclined wedge 10 is arranged in the second guide hole; the first guide hole is slidably provided with a lock pin 3 in a matched manner, and the upper part of the lock pin 3 is provided with a chute 9; the lower part of the inclined wedge 10 is matched with the inclined groove 9 of the lock pin, and the lower part of the inclined wedge 10 can interact with the inclined groove 9 of the lock pin through a matched inclined plane; the upper part of the locking pin 3 close to the closed end of the first guide hole is matched and propped against the inner plane of the closed end, so that the locking pin 3 can be limited to slide in the direction, the distance L between the inner end surface of the first limiting piece 19 positioned at the open end of the first guide hole and the locking pin 3 is larger than the sliding stroke of the locking pin 3 and smaller than the upper opening width of the chute 9 of the locking pin, and therefore, when the locking pin 3 moves along the first guide hole, the lower part of the inclined wedge 10 is always contacted with the chute 9 of the locking pin, and the lower part of the inclined wedge is not separated from the chute 9 of the locking pin.
The upper portion welding of adapter sleeve 1 has second flange 13, and the circumference of second flange 13 is processed and is had the through-hole, installs second locating part 15 on the second flange 13, and the circumference of second locating part 15 is processed and is had the through-hole, and the through-hole of second flange 13 cooperates and is connected through second bolt 14 with the through-hole of second locating part 15, and the inboard of second locating part 15 is provided with spacing hole 16, and the spacing hole 16 of second locating part 15 is installed to the elastic component 12 other end.
A drill rod 2 is arranged in a drill rod mounting 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 mounting hole 6 of the connecting sleeve 1.
In order to enable the drill rod 2 to smoothly contact and press the lock pin 3 to move when the drill rod is installed, the bottom edge chamfer of the outer end face of the lock pin 3 close to the loading end of the drill rod 2 is 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 lock pin 3 is close to the bottom edge chamfer of the closed end of the first guide hole to serve 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 normal direction, namely rotates clockwise in the working state; when the drill rod 2 enters or exits the drill rod mounting hole 6 of the connecting sleeve 1, the drill rod is rotated reversely, namely, rotated anticlockwise.
The elastic piece 12 is in a compressed 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 guiding action of the horn 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, then the lock pin 3 rotates anticlockwise, under the extrusion of the drill rod head, the inclined wedge 9 acts on the inclined wedge 10, so that the spring force is overcome, 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, so that 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 action of the spring force, the inclined wedge 9 acts on the drill rod 3, the lock pin 3 slides to the closed end of the first guide hole, and afterwards, when the drill rod 2 continues to rotate clockwise, the lock pin 3 can not slide towards the opening end, thereby realizing locking.
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 presses the second guide surface 8 of the lock pin 3 in the rotating process, the lock pin 3 acts on the inclined wedge 10 through the chute 9 under the action of the extrusion force, the spring force is overcome, the drill rod moves towards the opening end of the first guide hole until the outer surface of the drill rod 2 contacts with the second guide surface 8 of the lock pin 3, and then the drill rod 2 can be pulled out smoothly.
When the maintenance or replacement of the lock pin 3, the wedge 10, the spring and other internal parts is required, the internal parts can be taken out after the first limiting part 19 and the second limiting part 15 are directly disassembled, and the installation steps are opposite to the above.
Through the process, the automatic installation and the disassembly of the drill rod 2 can be realized, the existing manual assembly and disassembly of the drill rod 2 is replaced, and the automatic joint of the drill rod 2 is realized.
According to the invention, the drill rod 2 is clamped in the drill rod mounting hole 6 through the lock pin 3, when the drill rod 2 rotates clockwise, the lock pin 3 is propped against and is not moved, and when the drill rod 2 rotates anticlockwise, the lock pin limiting groove 5 props against the lock pin 3 to chamfer, and the lock pin 3 slides towards the opening end direction of the first guide hole. The device has 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 inserting and pulling the lock pin 3, thereby realizing automatic replacement of the drill rod 2.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, 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 and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (6)
1. A drill rod joint device, characterized in that: the drill rod mounting 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 opened, 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 first limiting piece, 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 limit groove of the drill rod head, a first guide surface is arranged on one side of the lock pin, which is close to the drill rod loading end, and a second guide surface is arranged on one side of the lock pin, which is close to the closed end; the lock pin is also provided with a reset mechanism which enables the lock pin to be far away from the first limiting piece, and when the lock pin limiting groove of the drill rod head is opposite to the first guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism; 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 the chute on the lock pin; the upper part 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 at the upper part of the second guide hole; the inlet end of the drill rod mounting hole is in a horn mouth shape.
2. A drill rod joint arrangement according to claim 1, wherein: the second limiting piece is provided with a limiting hole, and the upper end of the elastic piece is positioned in the limiting hole.
3. A drill rod joint arrangement according to claim 1, wherein: the inclined wedge block is provided with a guide column extending towards the limiting hole, and the lower end of the elastic piece is sleeved on the guide column.
4. A drill rod joint arrangement according to claim 1, wherein: the elastic piece is a spring or an elastic sleeve.
5. A drill rod joint arrangement according to claim 1, wherein: the first limiting piece and/or the second limiting piece are/is detachably connected to the connecting sleeve.
6. A drill rod 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 |
|---|---|---|---|
| CN202010599590.XA CN111649044B (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599590.XA CN111649044B (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111649044A CN111649044A (en) | 2020-09-11 |
| CN111649044B true CN111649044B (en) | 2024-04-30 |
Family
ID=72345037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010599590.XA Active CN111649044B (en) | 2020-06-28 | 2020-06-28 | Drill rod joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111649044B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3926089A (en) * | 1972-10-31 | 1975-12-16 | Franz Rubig & Sohne Kg | Safety pin |
| US4097054A (en) * | 1975-10-07 | 1978-06-27 | The Jacobs Manufacturing Company, Limited | Drill chucks |
| US6250856B1 (en) * | 1997-02-28 | 2001-06-26 | Kabushiki Kaisha Miyanaga | Quick attachment structure for drill shank |
| CN102345447A (en) * | 2011-06-24 | 2012-02-08 | 中煤科工集团西安研究院 | Casting spliced diamond composite sheet anchor rod drill bit and connecting sleeve thereof |
| CN102704869A (en) * | 2012-06-05 | 2012-10-03 | 重庆迪马工业有限责任公司 | Rod connecting and disconnecting device applicable to drill rod |
| CN203808859U (en) * | 2014-04-23 | 2014-09-03 | 山东五岳钻具股份有限公司 | Improved cone connecting type drill rod |
| CN212455136U (en) * | 2020-06-28 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Drill rod joint device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202015005177U1 (en) * | 2015-07-24 | 2015-09-08 | Alstom Technology Ltd. | locking pin |
-
2020
- 2020-06-28 CN CN202010599590.XA patent/CN111649044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3926089A (en) * | 1972-10-31 | 1975-12-16 | Franz Rubig & Sohne Kg | Safety pin |
| US4097054A (en) * | 1975-10-07 | 1978-06-27 | The Jacobs Manufacturing Company, Limited | Drill chucks |
| US6250856B1 (en) * | 1997-02-28 | 2001-06-26 | Kabushiki Kaisha Miyanaga | Quick attachment structure for drill shank |
| CN102345447A (en) * | 2011-06-24 | 2012-02-08 | 中煤科工集团西安研究院 | Casting spliced diamond composite sheet anchor rod drill bit and connecting sleeve thereof |
| CN102704869A (en) * | 2012-06-05 | 2012-10-03 | 重庆迪马工业有限责任公司 | Rod connecting and disconnecting device applicable to drill rod |
| CN203808859U (en) * | 2014-04-23 | 2014-09-03 | 山东五岳钻具股份有限公司 | Improved cone connecting type drill rod |
| CN212455136U (en) * | 2020-06-28 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Drill rod joint device |
Non-Patent Citations (1)
| Title |
|---|
| 大型高炉新型换钎机介绍;李伟;;冶金设备;20071015(05);全文 * |
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| Publication number | Publication date |
|---|---|
| CN111649044A (en) | 2020-09-11 |
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