CN111677734B - Automatic joint of drill rod - Google Patents
Automatic joint of drill rod Download PDFInfo
- Publication number
- CN111677734B CN111677734B CN202010600995.0A CN202010600995A CN111677734B CN 111677734 B CN111677734 B CN 111677734B CN 202010600995 A CN202010600995 A CN 202010600995A CN 111677734 B CN111677734 B CN 111677734B
- Authority
- CN
- China
- Prior art keywords
- drill rod
- lock pin
- hole
- mounting 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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Links
- 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 4
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- F16B21/12—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 locking-pins or split-pins thrust into holes
- F16B21/125—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 locking-pins or split-pins thrust into holes radially resilient or with a snap-action member, e.g. elastic tooth, pawl with spring, resilient coil or wire
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an automatic joint of a drill rod, 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 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 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 included angle alpha between the center line of the guide hole and the center line of the connecting sleeve is not larger than the self-locking angle of the lock pin, the lower end of the lock pin is matched with the 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 limiting piece, and when the lock pin limiting groove of the drill rod head is opposite to the 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 an automatic joint of a drill rod.
Background
At present, the drill rod of the blast furnace ironmaking tapping machine is mainly connected by manual work, and the connecting mode is mainly two, namely pin connection and threaded connection, wherein the pin connection is widely applied, and has the advantage that the drill rod cannot be pulled out due to the fact that the drill rod is not easy to be blocked. However, the pin connection needs to be manually plugged and unplugged, the working efficiency is low, and many enterprises have put forward the requirement of automatic drill rod replacement of the tapping machine. Because the manual operation mode can not meet the requirement of automatically replacing the drill rod, the development of the drill rod automatic joint device is needed.
Disclosure of Invention
Therefore, the application aims to provide an automatic joint of a drill rod, so as to realize automatic locking and separation of the drill rod and a connecting sleeve.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The automatic joint of the drill rod 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 opened, 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 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 included angle alpha between the center line of the guide hole and the center line of the connecting sleeve is not larger than the self-locking angle of the lock pin, the lower end of the lock pin is matched with the 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 limiting piece, and when the lock pin limiting groove of the drill rod head is opposite to the guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism.
Optionally, the reset mechanism includes an elastic member disposed between the stopper 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 piece is provided with a guide post extending towards the limiting hole, and one end, away from the lock pin, of the elastic piece is sleeved on the guide post.
Optionally, the elastic member is a spring or an elastic sleeve.
Alternatively, α=0°.
Optionally, the inlet end of the drill rod mounting hole is in a horn mouth shape.
Optionally, the limiting piece is detachably connected to the connecting sleeve.
Optionally, a flange is arranged at the inlet end of the drill rod mounting hole, and the limiting piece is detachably connected to the flange.
The invention has the beneficial effects that: the drill rod is clamped in the drill rod 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 lock pin limiting groove pushes against the lock pin guide surface, and the lock pin slides along the guide hole towards the limiting piece; the automatic locking and the separation between the drill rod and the connecting sleeve are realized, the existing manual loading and unloading 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 an automatic shank adapter according to the present invention;
FIG. 2 is a cross-sectional view of K-K of FIG. 1;
fig. 3 is a cross-sectional view of K-K of fig. 1 (α=0°).
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 limit groove 5, a drill rod mounting hole 6, a bell mouth 7, a limit hole 8, an elastic piece 9, a guide post 10, a flange 11, a bolt 12, a limit piece 13, a guide hole 15 and a second guide surface 16.
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. 1-3, an automatic joint for a drill rod comprises a connecting sleeve 1, wherein a drill rod mounting hole 6 is formed in the connecting sleeve 1, a guide hole 15 communicated with the drill rod mounting hole 6 is formed above the drill rod mounting hole 6, one end of the guide hole 15 is open, and the other end of the guide hole 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 which is in sliding fit with the 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 included angle alpha between the center line of the guide hole 15 and the center line of the connecting sleeve 1 is not larger than the self-locking angle of the lock pin 3, the lower end of the lock pin 3 is matched with the lock pin limit 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, which is close to the loading end of the drill rod 2, and a second guide surface 16 is arranged on one side of the lock pin 3, which is close to the closed end; when the drill rod 2 reversely rotates to enter the drill rod mounting hole 6, the end of the drill rod 2 contacts with the first guide surface 4 and extrudes and pushes 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, 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 limiting piece 13, when the lock pin limiting groove 5 at the head part of the drill rod 2 is opposite to 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 positively; 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 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 invention 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 limiting piece 13 and the lock pin 3; the lock pin 3 is provided with a limiting hole 8, and one end of an 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, which is 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=0°.
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.
In order to facilitate later maintenance, the limiting piece 13 in the invention is detachably connected to the connecting sleeve 1; the flange 11 is arranged at the inlet end of the drill rod mounting hole 6, the limiting piece 13 is detachably connected to the flange 11, and in the later maintenance, the quick assembly and disassembly of parts in the limiting hole 8 can be realized.
Examples
The automatic joint of the drill rod comprises a connecting sleeve 1, wherein a drill rod mounting hole 6 is formed in the connecting sleeve 1, a horn mouth 7 is arranged at the inlet end of the drill rod mounting hole 6 of the connecting sleeve 1, and the horn mouth 7 has a guiding function, so that the drill rod 2 can be conveniently aligned smoothly during mounting and inserted into the drill rod mounting hole 6 of the connecting sleeve 1.
The drill rod mounting hole 6 top is provided with guiding hole 15, and guiding hole 15 one end opening, one end is sealed, and the contained angle between the central line of guiding hole 15 and the horizontal central line of drill rod mounting hole 6 is alpha, and alpha is more than or equal to 0 and less than or equal to the self-locking angle of guiding hole 15, and the purpose is that the contained angle alpha of the central line of guiding hole 15 and the horizontal central line of adapter sleeve 1 is not greater than the self-locking angle of lockpin 3, has effort to the lower surface of lockpin 3 when drill rod 2 clockwise rotation, but effort direction is in the self-locking scope all the time, can't extrude lockpin 3 to slide to the open end of guiding hole 15 according to the auto-locking principle to guarantee to lock drill rod 2. Fig. 3 shows a layout of the angle α=0 between the center line of the guide hole 15 and the horizontal center line of the drill rod mounting hole 6, which is also a preferred embodiment of the present invention.
The guide hole 15 is provided with the lock pin 3 in a sliding fit way, the lock pin 3 is close to the closed end of the guide hole 15, the upper part of the lock pin 3 is propped against the inner plane of the closed end in a fit way, the lock pin 3 is provided with the limit hole 8 close to the open end of the guide hole 15, the elastic piece 9 is a compression spring, and one end of the elastic piece 9 is arranged in the limit hole 8.
A flange 11 is arranged at the outer part of the connecting sleeve 1 and close to the opening end of the guide hole 15, the flange 11 is welded with the connecting sleeve 1, and through holes are formed in the circumferential direction of the flange 11; the flange 11 is provided with a limiting piece 13, through holes are formed in the circumferential direction of the limiting piece 13, and the through holes of the flange 11 are matched with the through holes of the limiting piece 13 and are fixedly connected through bolts 12; a guide post 10 is arranged in the middle of one side of the limiting piece 1 facing the lock pin, and the other end of the elastic piece 9 is sleeved on the guide post 10.
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.
The bottom edge chamfer of the closed end of the lock pin 3 close to the guide hole 15 is used as a second guide surface 16, and the bottom edge chamfer of the outer end surface of the lock pin 3 close to the loading end of the drill rod 2 is used as a first guide surface 4.
The working principle of the drill rod automatic joint 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 9 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 9, the lock pin 3 is propped against the closed end of the guide hole 15, 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, then the lock pin 3 rotates anticlockwise, under the extrusion of the head of the drill rod 2, the spring force is overcome, the lock pin 3 moves towards the opening 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, 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, the lock pin 3 slides to the closed end of the guide hole 15 under the action of the spring force, and the included angle alpha between the central line of the guide hole 15 and the horizontal central line of the connecting sleeve 1 is not larger than the self-locking angle, and thereafter, the acting force direction of the lock pin 3 continuously rotates clockwise is always in the self-locking range, and the lock pin 3 cannot slide towards the opening end of the guide hole 15, 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 presses the second guide surface 8 of the lock pin 3 in the rotating process, the lock pin 3 overcomes spring force under the action of extrusion force and moves towards the opening end of the guide hole 15 until the outer surface of the drill rod 2 is contacted with the second guide surface 16 of the lock pin 3, and then the drill rod 2 can be pulled out smoothly.
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 the lock pin, and when the drill rod 2 rotates anticlockwise, the lock pin limiting groove 5 props against the guide surface of the lock pin 3, and the lock pin 3 slides towards the opening end direction of the 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. The invention can be used for automatic joint of open drill rods in blast furnace ironmaking, metal smelting and other fields related to automatic joint of drill rods.
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. An automatic joint of drill rod, its 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 guide hole communicated with the drill rod mounting hole is formed above the drill rod mounting hole, one end of the guide hole is opened, 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 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 included angle alpha between the center line of the guide hole and the center line of the connecting sleeve is not larger than the self-locking angle of the lock pin, the lower end of the lock pin is matched with the 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 limiting piece, and when the lock pin limiting groove of the drill rod head is opposite to the guide hole, the lock pin enters the lock pin limiting groove under the action of the reset mechanism; the reset mechanism comprises an elastic piece arranged between the limiting piece and the lock pin; the inlet end of the drill rod mounting hole is in a horn mouth shape; the limiting piece is detachably connected to the connecting sleeve.
2. An automatic drill rod joint according to claim 1, wherein: the lock pin is provided with a limiting hole, and one end of the elastic piece is positioned in the limiting hole.
3. An automatic drill rod joint according to claim 2, wherein: 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.
4. An automatic drill rod joint according to claim 1, wherein: the elastic piece is a spring or an elastic sleeve.
5. An automatic drill rod joint according to claim 1, wherein: α=0°.
6. An automatic drill rod joint according to claim 1, wherein: the inlet end of the drill rod mounting hole is provided with a flange, and the limiting piece is detachably connected to the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010600995.0A CN111677734B (en) | 2020-06-28 | 2020-06-28 | Automatic joint of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010600995.0A CN111677734B (en) | 2020-06-28 | 2020-06-28 | Automatic joint of drill rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677734A CN111677734A (en) | 2020-09-18 |
| CN111677734B true CN111677734B (en) | 2024-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010600995.0A Active CN111677734B (en) | 2020-06-28 | 2020-06-28 | Automatic joint of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111677734B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0438611A1 (en) * | 1990-01-20 | 1991-07-31 | Dolmar GmbH | Rotation-preventing locking device for a rotating component, especially for a cutting tool |
| CN102828705A (en) * | 2012-08-31 | 2012-12-19 | 河北宏远液压机械有限公司 | Mechanism for automatically changing drill rod |
| CN102889060A (en) * | 2011-07-22 | 2013-01-23 | 深圳市普隆重工有限公司 | Drill clamp mechanism and jackdrill |
| WO2014034593A1 (en) * | 2012-08-31 | 2014-03-06 | 株式会社ジェイテクト | Lock pin, lock pin rotating tool, and connection releasing structure |
| CN207634475U (en) * | 2017-10-18 | 2018-07-20 | 深圳攻城狮智能有限公司 | Clamp device |
| EP3599385A1 (en) * | 2018-07-27 | 2020-01-29 | Kipp Verpachtungen e.K. | Ball locking bolt with head retention |
| CN212455134U (en) * | 2020-06-28 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Automatic joint for drill rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9086118B2 (en) * | 2011-08-29 | 2015-07-21 | Bright Technologies, Llc | Locking pin with spring retention mechanism |
-
2020
- 2020-06-28 CN CN202010600995.0A patent/CN111677734B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0438611A1 (en) * | 1990-01-20 | 1991-07-31 | Dolmar GmbH | Rotation-preventing locking device for a rotating component, especially for a cutting tool |
| CN102889060A (en) * | 2011-07-22 | 2013-01-23 | 深圳市普隆重工有限公司 | Drill clamp mechanism and jackdrill |
| CN102828705A (en) * | 2012-08-31 | 2012-12-19 | 河北宏远液压机械有限公司 | Mechanism for automatically changing drill rod |
| WO2014034593A1 (en) * | 2012-08-31 | 2014-03-06 | 株式会社ジェイテクト | Lock pin, lock pin rotating tool, and connection releasing structure |
| CN104169593A (en) * | 2012-08-31 | 2014-11-26 | 株式会社捷太格特 | Lock pin, lock pin rotating tool, and connection releasing structure |
| CN207634475U (en) * | 2017-10-18 | 2018-07-20 | 深圳攻城狮智能有限公司 | Clamp device |
| EP3599385A1 (en) * | 2018-07-27 | 2020-01-29 | Kipp Verpachtungen e.K. | Ball locking bolt with head retention |
| CN212455134U (en) * | 2020-06-28 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Automatic joint for drill rod |
Non-Patent Citations (1)
| Title |
|---|
| 大型高炉新型换钎机介绍;李伟;;冶金设备;20071015(第05期);全文 * |
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| CN111677734A (en) | 2020-09-18 |
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