CN109339716A - Thread off prevention connecting device and anticreep for drilling rod assemble body - Google Patents
Thread off prevention connecting device and anticreep for drilling rod assemble body Download PDFInfo
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- CN109339716A CN109339716A CN201811425959.4A CN201811425959A CN109339716A CN 109339716 A CN109339716 A CN 109339716A CN 201811425959 A CN201811425959 A CN 201811425959A CN 109339716 A CN109339716 A CN 109339716A
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- connector sleeve
- drilling rod
- bit shank
- thread
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- 238000005553 drilling Methods 0.000 title claims abstract description 88
- 230000002265 prevention Effects 0.000 title claims abstract description 47
- 239000011435 rock Substances 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Anticreep the present invention is provided to the thread off prevention connecting device of drilling rod and for drilling rod assembles body.Above-mentioned thread off prevention connecting device includes: a connector sleeve, coaxial with the bit shank that is connected to rock drilling pusher side, and one end is set in the bit shank periphery, and the other end is installed for the drilling rod；And anticreep component, be installed on the connection jacket wall of the connector sleeve, on the bit shank outer peripheral surface groove or stage portion abut against, stop the connector sleeve moving axially towards the direction disengaged with the bit shank along the bit shank.The anticreep component includes bolt or expansion pin.Body is assembled by above-mentioned thread off prevention connecting device and using the anticreep of the thread off prevention connecting device, it can be ensured that drilling rod is smoothly removed and can prevent connector sleeve from disengaging from the bit shank of rock drilling pusher side, and has the advantages that structure is simple, inexpensive.
Description
Technical field
The present invention relates to Tunnel Engineering machinery field, more specifically in rock drill for drilling rod to be connected to
The thread off prevention connecting device and anticreep of bit shank assemble body.
Background technique
In constructing tunnel, rock bolting jumbo is common engineering machinery.Rock bolting jumbo generally includes chassis, dynamical system
System, control system, station, working arm, drilling equipment, rockbolt installation device, grouting device etc..Wherein, drilling equipment includes
Rock drill, drilling rod, drill bit, connector sleeve, drill pipe clamp, forward beam etc.；Rockbolt installation device includes anchor pole library, anchor pole clamping
Device, anchor pole library driving mechanism, rockbolt installation set etc..
It is usually to pass through as the connection structure that drilling rod or drill steel are installed on to rock drilling pusher side in previous rock drill
One connector sleeve links together the bit shank of rock drilling pusher side and drilling rod or another drill steel (referring to patent document 1, Fig. 2).It utilizes
When such equipment carries out drilling construction, due to being to be continued for bore operation, so not needing continually dismounting drilling rod, lead to
Drilling rod disassembly and replacement are often just carried out when drilling rod cannot reuse.
However, it is different from above-mentioned single drilling construction, in anchor bolt construction, needs to be repeated and be beaten first with drilling rod
Hole then removes drilling rod and changes the outfit work cycle as anchor pole.After the completion of punching when dismounting drilling rod, with drilling rod and the company of loosening
Threaded connection between female connector, the threaded connection between connector sleeve and bit shank are also possible to be loosened together, therefore connection is cased with
It may be removed together with drilling rod.In this case, there are the unfavorable conditions that drilling rod fails smoothly to separate with connector sleeve；And
And if prolonged and repeated assembly and disassembly between connector sleeve and bit shank, it is likely that damage bit shank and rock drill, rock drill maintenance is complicated, consumes
When, it is at high cost.
Therefore, it is intended that designing a kind of connection structure suitable for anchor bolt construction, it can guarantee what drilling rod was smoothly removed
Simultaneously, it is ensured that connector sleeve is securely attached at bit shank, prevents connector sleeve from being disassembled together, to reach protection bit shank, prolong
Long life and then the purpose for improving operating efficiency.
Existing technical literature
Patent document 1:CN2296927Y
Summary of the invention
The present invention is exactly to be proposed in view of above-mentioned problems of the prior art, and it is an object of the present invention to provide one kind can be true
Drilling rod is protected smoothly to be removed and use that connector sleeve is disengaged from the bit shank of rock drilling pusher side, that structure is simple and inexpensive can be prevented
Body is assembled in the thread off prevention connecting device of drilling rod and the anticreep based on thread off prevention connecting device composition.
To achieve the goals above, the present invention uses following technological means.
(1) a kind of thread off prevention connecting device for drilling rod, comprising:
One connector sleeve, it is coaxial with the bit shank that is connected to rock drilling pusher side, and one end is set in the bit shank periphery, the other end supplies
The drilling rod installation；With
Anticreep component is installed on the connection jacket wall of the connector sleeve, with the groove or platform on the bit shank outer peripheral surface
Rank portion abuts against, and stops the connector sleeve moving axially towards the direction disengaged with the bit shank along the bit shank.
By the way that anticreep component is arranged, connector sleeve can be stopped mobile towards the direction disengaged with bit shank, so as to prevent
Connector sleeve is disengaged from bit shank.Moreover, because the escapement is using the groove or stage portion being usually arranged on bit shank come real
Now anti-disengagement function, it is convenient and practical there is no need to be transformed to existing bit shank, and will not additionally increase job step and cost
Burden.
(2) thread off prevention connecting device of drilling rod is used for according to (1), wherein the anticreep component to include bolt, in institute
At least one through-hole radially extended being provided on connection jacket wall along the connector sleeve is stated, is inserted respectively in each through-hole
Enter to have a bolt, the one end of the bolt on the bit shank outer peripheral surface groove or stage portion abut against.
By bolt to realize anti-disengagement function in the way of simple and cheap, structure is simple and convenient to operate.
(3) thread off prevention connecting device of drilling rod is used for according to (2), wherein the anticreep component to further include preventing institute
State the anti-release member that radially towards direction far from axle center moves of the bolt along the connector sleeve.
By the way that anti-release member is further arranged, the reliability of thread off prevention connecting device can be further increased, it can reliably really
Connector sleeve is protected not fall off.
(4) thread off prevention connecting device of drilling rod is used for according to (3), wherein the anti-release member to be by each bolt
The steel wire to link together set on the bolt fastening nut set on the bolt stop washer or set
In the bolt nut and with the nut cooperation locking split pin.
It is a variety of it is easy by way of constitute anti-release member, can further ensure that thread off prevention connecting device structure is simple, cost
It is cheap, easy to operate.
(5) thread off prevention connecting device of drilling rod is used for according to (2), wherein the through-hole to be 2, this 2 described logical
Hole is to be circumferentially set to the connection jacket wall at a distance of the position of 180 degree；Or the through-hole is 3, this 3 are described logical
Hole is set to the connection jacket wall with circumferentially 120 degree of position apart.
By the way that the bolt of anticreep to be arranged in equidistant position in connector sleeve diameter relative position or circumference
It sets, it can be ensured that the dynamic balance abutted with bit shank, so as to prevent bit shank and connector sleeve from issuing collision because of discontinuity
A problem that sound or abrasion.
(6) thread off prevention connecting device of drilling rod is used for according to (1), wherein the anticreep component includes expansion pin,
The connection jacket wall is equipped with to be prolonged along the axis vertical take-off with the connector sleeve and the radially different direction with the connector sleeve
At least one slot stretched, respectively inserted with an expansion pin, a part of the periphery of the expansion pin and institute in each slot
The groove or stage portion stated on bit shank outer peripheral surface abut against.
Anti- disengagement function is realized in the way of cheap and simple by expansion pin, structure is simple and convenient to operate.
(7) thread off prevention connecting device of drilling rod is used for according to (6), wherein the slot to be 2, the anticreep component
Including 2 expansion pins.
Bit shank is choked jointly by two expansion pins, so that it can be reliably prevented that the axial phase between connector sleeve and bit shank
To movement；And the dynamic balance that can ensure to abut with bit shank, so as to prevent bit shank and connector sleeve due to discontinuity
A problem that issuing impact sound or abrasion.
(8) thread off prevention connecting device of drilling rod is used for according to (1), wherein the connector sleeve generally hollow cylinder
Shape, including being set in the first connecting portion of the bit shank periphery and connecting for the second connecting portion of drilling rod installation, described first
Socket part is integrally formed with the second connecting portion；It is cyclic annular that one is equipped between the first connecting portion and the second connecting portion
Flange, the collar flange perpendicular to the connector sleeve internal perisporium and be integrally formed with the internal perisporium；In the connection
When set links together with the bit shank and the drilling rod, the bit shank is connected to the one side of the collar flange, the drilling rod
Tail end be connected to the another side of the collar flange.
It is connected to the structure of collar flange by forming bit shank and drilling rod, impact is applied with high-frequency in rock drill and is carried out
When rock drilling operation, the drilling rod that impact is directly delivered to collar flange and offseted with collar flange by bit shank, to substantially reduce pricker
Impact force suffered by tail and the screw thread of connector sleeve junction, therefore it is able to extend the service life of connector sleeve.
(9) thread off prevention connecting device of drilling rod is used for according to (8), wherein in the collar flange and the inner circumferential
Near the interconnecting piece of wall, along the circumferencial direction of the connector sleeve, an annular groove is respectively formed in the two sides of the collar flange.
By being formed about annular recess in collar flange two sides, collar flange can be reduced with connector sleeve and connect root
Stress is concentrated, and collar flange can be prevented to be broken from connector sleeve, therefore be able to extend the service life of connector sleeve.
(10) a kind of anticreep for drilling rod assembles body, comprising: bit shank is equipped with recessed on the outer peripheral surface of the bit shank
Slot or stage portion；With above-mentioned thread off prevention connecting device, the thread off prevention connecting device is installed on the bit shank.
Connected by using the thread off prevention connecting device that can prevent connector sleeve from disengaging from bit shank the bit shank portion of drill steel with
Drilling rod can form reliable anticreep in simple structure and assemble body.
Invention effect
By means of the invention it is possible to which drilling rod is reliably mounted on bit shank by connector sleeve, and it can prevent from frequently dismantling and bore
The case where connector sleeve is by company with disassembling when bar is effectively reduced the abrasion and damage to bit shank, extends bit shank and connector sleeve
Service life, improve construction efficiency, alleviate worker and frequently dismantle the labor intensity for tightening connector sleeve, shorten construction week
Phase reduces construction cost.Due to reducing manual operation, the mechanization journey in the construction such as tunnel is further improved
Degree.
Detailed description of the invention
Fig. 1 is the rock drill using the thread off prevention connecting device of first embodiment of the invention.
Fig. 2 is the partial sectional view of the thread off prevention connecting device of first embodiment of the invention.
Fig. 3 is the schematic diagram of the connector sleeve in the thread off prevention connecting device of first embodiment of the invention.
Fig. 4 is the rock drill using the thread off prevention connecting device of second embodiment of the invention.
Fig. 5 is the partial sectional view of the thread off prevention connecting device of second embodiment of the invention.
Fig. 6 is the partial sectional view of the connector sleeve in the thread off prevention connecting device of second embodiment of the invention.
Fig. 7 is the partial schematic diagram of the connector sleeve in the thread off prevention connecting device of second embodiment of the invention, is A- in Fig. 6
A cross-sectional view.
Fig. 8 is the partial schematic diagram of the connector sleeve in the thread off prevention connecting device of second embodiment of the invention, is B in Fig. 6
The enlarged diagram in portion.
Fig. 9 is the partial schematic diagram of the connector sleeve in the thread off prevention connecting device of second embodiment of the invention, is C in Fig. 6
The enlarged diagram in portion.
Figure 10 is the another embodiment of the slot in the thread off prevention connecting device of second embodiment of the invention.
Description of symbols
100 rock drills
1 bit shank
11 grooves
2 connector sleeves
21 annular flanges
22 welded nuts
3 expansion pins
4 bolts
Specific embodiment
Referring to Fig. 1 to Fig. 8, specific embodiments of the present invention will be described in detail.In attached drawing, for identical
Component or part mark identical appended drawing reference, and omit to its repeated explanation.
First embodiment
In the following, first embodiment of the invention is described in detail referring to figs. 1 to Fig. 3.
In constructing tunnel, needs to carry out anchor bolt construction to implement roadway support, briefly, first pass through rock drill in rock
It is punched on cliff, then removes drilling rod and change anchor pole, carry out anchor bolt construction.
When rock drill 100 carries out boring work, it is past that the executing agencies such as piston carry out high frequency under the action of power source
Multiple movement, continuous Ground shock waves bit shank 1, under the influence of the impact force, the drilling rod (not shown) being connected with bit shank 1 is advanced by leaps and bounds rock.
With the return motion of above-mentioned piston, drilling rod is extracted from rock.By the way that such movement is repeated, rock can be broken
It is broken and drill on rock wall.
Bit shank 1 is installed on rock drilling pusher side as the component for absorbing impact and applying torque.Bit shank common at present, exists mostly
Periphery has the shaft shoulder, or the shaft part different including diameter, that is to say, that has groove or stage portion on bit shank periphery.
The present invention exactly devises thread off prevention connecting device using the structure.
As depicted in figs. 1 and 2, above-mentioned drilling rod is (not shown) is installed on bit shank 1 by a connector sleeve 2, and same with bit shank 1
Axis.For example, connector sleeve 2 is loaded on the outside of bit shank by its inner screw sheath, drilling rod is fastened on the connector sleeve by its external screw thread
(not shown).Connector sleeve 2 is removed from bit shank 1 together with drilling rod in order to prevent, is installed on the jacket wall of the connector sleeve 2 anti-
De- component, the anticreep component are abutted against with the groove 11 on bit shank outer peripheral surface or the stage portion (not shown) being made of the shaft shoulder,
Stop connector sleeve along the mobile axially towards the direction (being right side in Fig. 2) disengaged with bit shank of bit shank.
As an embodiment of the invention, which can be realized by bolt.As shown in Figures 2 and 3,
It is provided at least one through-hole radially extended along connector sleeve 2 on the jacket wall of connector sleeve 2, is inserted into respectively in each through-hole
Have a bolt 4, the one end of the bolt 4 on the outer peripheral surface of bit shank 1 groove 11 or stage portion abut against.
Herein, can be 1 on the jacket wall of connector sleeve 2, be also possible to 2 perhaps 3 or more.It is 2 in through-hole
In the case where a, 2 through-holes are preferably placed along position of the circumferencial direction at a distance of 180 degree.The situation for being 3 in through-hole
Under, 3 through-holes are preferably placed along circumferencial direction 120 degree of position apart.Multiple through-holes are equably arranged
In a circumferential direction, the bolt being inserted into through-hole can be made to form balance to the abutting force of bit shank, avoided due to force unbalance
Bit shank is caused to generate extra stress, generate noise or abrasion.
It is equal for example, by using three bolts 4 when thread off prevention connecting device in this way links together drilling rod and bit shank
Cloth is fixed on connector sleeve circumference, and bolt is held out against in the groove on bit shank.When dismounting drilling rod and connector sleeve, rotary drill rod makes
Its threaded connection between connector sleeve is unclamped.Threaded connection between connector sleeve and bit shank at this time is possible to be loosened together,
Connector sleeve generates the tendency of axial movement, but due to having bolt top in a groove, can limit connector sleeve to a certain extent
Axial movement.
Specifically, for example when groove is configured to more shallow closer to drilling rod side depth and groove surfaces are round and smooth continuous
When curved surface, connector sleeve can be moved axially together with bolt in a certain range.With connector sleeve to the shifting far from bit shank direction
Dynamic, bolt radially bears the pressure from groove surfaces along connector sleeve and has to bolt and loosen the tendency that direction rotates.At this
In the case of kind, bolt can be limited by loosening component to prevent bolt and connect the relative rotation between jacket wall, into
And stop the relative rotation between connector sleeve and bit shank, it as a result plays and connector sleeve is prevented to continue to move to the direction disengaged from bit shank
Effect.
As component is loosened, linked together herein using by 3 bolts by steel wire, thus to bolt entirety into
Row is locking.Certainly, loosening component can also be using other mode, such as fastening nut (weldering is welded on the jacket wall of connector sleeve
Connected nut 22), prevent bolt from rotating to connector sleeve radial outside by the locking function of the fastening nut；Or use stop
The nut that washer or setting are connect with bolt thread and the locking split pin etc. with nut cooperation.As long as loosening component
It can prevent bolt from rotating to connector sleeve radial outside, can be any structure.
In the following, the internal structure about connector sleeve 2 is illustrated.
As shown in Fig. 2, the generally hollow cylindrical of connector sleeve 2, first connecting portion and confession including being set in 1 periphery of bit shank
The second connecting portion of drilling rod installation, first connecting portion are integrally formed with second connecting portion.The first connecting portion, second connecting portion
Inner wall be equipped with internal screw thread, for the external screw thread on the external screw thread or drilling rod on bit shank to cooperation realize screw threads for fastening connect.
A collar flange 21 is equipped between first connecting portion and second connecting portion, the collar flange 21 is perpendicular to connector sleeve
It 2 internal perisporium and is integrally formed with internal perisporium.The inside of connector sleeve 2 is separated into the first above-mentioned connection by the collar flange 21
Portion and second connecting portion.
When connector sleeve and bit shank 1 and drilling rod link together, bit shank 1 is connected to the one side of collar flange 21 (in Fig. 2
In, it is the left side of collar flange 21), the another side that drilling rod tail end is connected to collar flange 21 (is collar flange in Fig. 2
21 right side).
It is connected to the structure of collar flange 21 by forming bit shank and drilling rod, is applied in rock drill 100 with high-frequency and is rushed
When hitting progress rock drilling operation, the drilling rod that impact is directly delivered to collar flange 21 and offseted with collar flange by bit shank 1, thus greatly
Width reduces impact force suffered by the screw thread of the junction of bit shank and connector sleeve 2, therefore is able to extend the service life of connector sleeve 2.
As shown in Fig. 2, near the interconnecting piece of collar flange 21 and internal perisporium, along the circumferencial direction of connector sleeve 2, in ring
The two sides of shape flange 21 respectively form an annular groove.By being formed about annular recess in collar flange two sides, ring can be reduced
The stress that shape flange connect root with connector sleeve is concentrated, and collar flange can be prevented to be broken from connector sleeve, therefore be able to extend
The service life of connector sleeve.
Second embodiment
In the following, being illustrated referring to Fig. 4 to Fig. 8 to second embodiment of the present invention.For with first embodiment phase
Same part, marks identical appended drawing reference, omits repeated explanation herein.
Anticreep component can also be realized by expansion pin.As shown in Figure 4 and Figure 5, edge is equipped on the jacket wall of connector sleeve 2
At least one slot for extending of radially different direction with the axis vertical take-off of connector sleeve 2 and with connector sleeve 2, inserted in each slot respectively
Enter to have an expansion pin 3, a part of the periphery of expansion pin 3 and the groove 11 on 1 outer peripheral surface of bit shank or the platform being made of the shaft shoulder
Rank portion abuts against, and stops connector sleeve along the mobile axially towards the direction (being right side in Fig. 5) disengaged with bit shank of bit shank.
More specifically, slot is opened up on the jacket wall of connector sleeve 2, and makes the sky between the slot and the outer peripheral surface of bit shank 1
Between at least radial dimension be less than expansion pin diameter so that filling in the expansion pin in the space with compressed state and pricker
The outer peripheral surface of tail 1 is tangent.
As shown in fig. 7, above-mentioned slot is formed vertical with the axis of connector sleeve 2 and diametrical direction in present embodiment
Direction extend.
As shown in Figure 10, above-mentioned slot can be formed as straight line through slot, and the cross section of slot is (perpendicular to slot extending direction
Section) shape can be arc-shaped, the side of being also possible to bottom shape.The quantity of slot can for 2 or more, corresponding number
Expansion pin be inserted into each slot.
By using expansion pin as anticreep component, can also effectively prevent joining connector sleeve 2 in dismounting drilling rod
The dynamic unfavorable condition disassembled.For example, connector sleeve 2 and 1 junction of bit shank are stuck in bit shank 2 using 1 or more expansion pin 3
Groove 11 at, when dismounting drilling rod, connector sleeve 2 may loosen therewith with 1 junction of bit shank, and connector sleeve 2 is in the same of rotation
Shi Jinhang axial direction local motion, but expansion pin 3 is stuck in groove, withstands on bit shank 1 and continues axial shifting to limit connector sleeve 2
Dynamic, it is achieved that locking functions, connector sleeve 2 is also loosened therewith and is disassembled when drilling rod being avoided frequently to dismantle, and improves construction effect
Rate and reliability.
In this second embodiment, in the same manner as the first embodiment party, bit shank 1 is completely screwed into bit shank free end after connector sleeve 2
(being right end in Fig. 5) withstands at collar flange 21, while drilling rod screws in 2 rearward end of connector sleeve and also withstands at collar flange 21.
Not particularly shown collar flange 21 in Fig. 6.
Thread off prevention connecting device in above-mentioned first embodiment or second embodiment is fitted together with bit shank, is constituted and is used
Body is assembled in the anticreep of drilling rod.The anticreep, which assembles body, can be used for rock drill, certainly, other be needed to prevent two
The case where bar component that section is threadedly coupled loosens, the present invention is equally applicable.
In addition, structure of the invention is not limited to above-mentioned embodiment, for example, being to pass through in the above-described embodiment
Bolt or expansion pin come on bit shank groove or stage portion abut, but be not restricted to that bolt or expansion pin, such as can be with
It is abutted by adding annular component between connector sleeve 2 and bit shank 1 to realize.As long as anticreep component can be with the groove on bit shank
Or stage portion abuts against and prevents connector sleeve from thoroughly disengaging from bit shank, can be any structure.
Above by embodiment, the present invention is described, but those skilled in the art should know do not taking off
In the case where from present subject matter, various modifications may be made, and the scheme of these changes should be read to include in this hair
Within the scope of bright claims.
Claims (10)
1. a kind of thread off prevention connecting device for drilling rod characterized by comprising
One connector sleeve, it is coaxial with the bit shank that is connected to rock drilling pusher side, and one end is set in the bit shank periphery, described in the other end supplies
Drilling rod installation；With
Anticreep component is installed on the connection jacket wall of the connector sleeve, with the groove or stage portion on the bit shank outer peripheral surface
It abuts against, stops the connector sleeve moving axially towards the direction disengaged with the bit shank along the bit shank.
2. the thread off prevention connecting device according to claim 1 for drilling rod, which is characterized in that
The anticreep component includes bolt,
At least one through-hole radially extended along the connector sleeve is provided on the connection jacket wall, in each through-hole
It is middle respectively inserted with a bolt, the one end of the bolt on the bit shank outer peripheral surface groove or stage portion offset
It connects.
3. the thread off prevention connecting device according to claim 2 for drilling rod, which is characterized in that
The anticreep component further includes preventing the bolt anti-along moving radially towards the direction far from axle center for the connector sleeve
Loose part.
4. the thread off prevention connecting device according to claim 3 for drilling rod, which is characterized in that
The anti-release member be by each steel wire being bolted together set on the fastening nut of the bolt or
Stop washer set on the bolt or the nut set on the bolt and the locking split pin cooperated with the nut.
5. the thread off prevention connecting device according to claim 2 for drilling rod, which is characterized in that
The through-hole is 2, and 2 through-holes are to be circumferentially set to the connection jacket wall at a distance of the position of 180 degree；
Or
The through-hole is 3, which is set to the connection with circumferentially 120 degree of position apart
Jacket wall.
6. the thread off prevention connecting device according to claim 1 for drilling rod, which is characterized in that
The anticreep component includes expansion pin,
It is equipped on the connection jacket wall along the axis vertical take-off with the connector sleeve and radially different with the connector sleeve
At least one slot that direction extends, respectively inserted with an expansion pin in each slot, one of the periphery of the expansion pin
Point on the bit shank outer peripheral surface groove or stage portion abut against.
7. the thread off prevention connecting device according to claim 6 for drilling rod, which is characterized in that
The slot is 2, and the anticreep component includes 2 expansion pins.
8. the thread off prevention connecting device according to claim 1 for drilling rod, which is characterized in that
The connector sleeve generally hollow cylindrical, including being set in the first connecting portion of the bit shank periphery and supplying the drilling rod
The second connecting portion of installation, the first connecting portion are integrally formed with the second connecting portion；
A collar flange is equipped between the first connecting portion and the second connecting portion, the collar flange is perpendicular to described
It the internal perisporium of connector sleeve and is integrally formed with the internal perisporium；
When the connector sleeve and the bit shank and the drilling rod link together, the bit shank is connected to the collar flange
On one side, the tail end of the drilling rod is connected to the another side of the collar flange.
9. the thread off prevention connecting device according to claim 8 for drilling rod, which is characterized in that
Near the interconnecting piece of the collar flange and the internal perisporium, along the circumferencial direction of the connector sleeve, in the ring
The two sides of shape flange respectively form an annular groove.
10. a kind of anticreep for drilling rod assembles body, comprising:
Bit shank is equipped with groove or stage portion on the outer peripheral surface of the bit shank；With
Thread off prevention connecting device described in any one of claims 1 to 9,
The thread off prevention connecting device is installed on the bit shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425959.4A CN109339716A (en) | 2018-11-27 | 2018-11-27 | Thread off prevention connecting device and anticreep for drilling rod assemble body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425959.4A CN109339716A (en) | 2018-11-27 | 2018-11-27 | Thread off prevention connecting device and anticreep for drilling rod assemble body |
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| Publication Number | Publication Date |
|---|---|
| CN109339716A true CN109339716A (en) | 2019-02-15 |
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ID=65318153
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811425959.4A Pending CN109339716A (en) | 2018-11-27 | 2018-11-27 | Thread off prevention connecting device and anticreep for drilling rod assemble body |
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| CN (1) | CN109339716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259391A (en) * | 2019-07-22 | 2019-09-20 | 山西天巨重工机械有限公司 | A kind of positive and negative rotation large torque transfer device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110259391A (en) * | 2019-07-22 | 2019-09-20 | 山西天巨重工机械有限公司 | A kind of positive and negative rotation large torque transfer device |
| CN110259391B (en) * | 2019-07-22 | 2024-01-30 | 山西天巨重工机械有限公司 | Forward and reverse rotation large torque transmission device |
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