CN210460531U - Forward and reverse rotation large torque transmission device - Google Patents
Forward and reverse rotation large torque transmission device Download PDFInfo
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- CN210460531U CN210460531U CN201921153681.XU CN201921153681U CN210460531U CN 210460531 U CN210460531 U CN 210460531U CN 201921153681 U CN201921153681 U CN 201921153681U CN 210460531 U CN210460531 U CN 210460531U
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- reducing sleeve
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Abstract
The utility model relates to a big moment of torsion transmission device of positive and negative rotation belongs to colliery exploitation machinery technical field. The device consists of a drill rod tail, a reducing sleeve, a hexagonal connecting sleeve and an elastic check ring for a shaft, wherein a first outer hexagonal and a second outer hexagonal are arranged on the outer walls of the drill rod tail and the reducing sleeve, an inner hexagonal I is axially arranged in the hexagonal connecting sleeve, the first outer hexagonal and the second outer hexagonal are sleeved in the inner hexagonal I on the inner surface of the hexagonal connecting sleeve, one end of the drill rod tail is connected with a drilling machine, the other end of the drill rod tail is provided with a left-handed wavy thread female thread and is matched with a wavy thread male thread at one end of the reducing sleeve, and a cooling water channel is arranged in an inner cavity of the drill; the middle of the reducing sleeve is provided with an installation groove for the elastic check ring for the shaft, and the elastic check ring for the shaft is arranged in the installation groove. The utility model has the advantages of good sealing performance, strong impact resistance, capability of bearing large torque transmission and the like; the drilling tool is suitable for various underground working conditions and the use requirements of the drilling tool, and the drilling function of the mining machinery under the complex operation working condition is realized.
Description
Technical Field
The utility model belongs to the technical field of the mechanical technique is extended in the colliery for the supporting device that various rig and drilling rod are connected in the pit of colliery is used for rock gangway, coal gangway, half coal rock gangway stock anchor rope construction operation and various big gun holes, is prevented suddenly the hole, is visited positive reverse big moment of torsion transmission device of water hole construction operation.
Background
At present, in various drilling operations of mechanized drilling machines for coal mines, a taper thread or rectangular thread connection mode is generally adopted to transmit torque drilling and lock anchor rod and anchor cable operations, a drill rod is subjected to resultant forces of pressure, torsion, pulse impact force and the like in the working process, the stress condition is complex, the working condition is relatively severe, the common thread connection mode is poor in impact resistance, the large torque transmission capability is relatively weak, the drill rod is easy to break, the thread fails and other failure modes occur; and the drill rod connected in a common thread form is adopted, and in the drilling process, if accidents such as drill rod blocking, drill burying and the like occur, when the drill rod is withdrawn, the drill machine needs to be rotated reversely, and the tripping phenomenon can occur. In addition, a plurality of drilling machines adopt left-handed threads to be connected with a drill rod, but the underground anchor rod locking, anchor cable stirring and locking generally adopt a right-handed mode, so that the left-handed connection mode cannot meet the requirements of underground construction and operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is to the limitation that uses is connected to ordinary threaded connection's shortcoming and rig levogyration, and provides a big moment of torsion transmission device of positive and negative rotation.
The utility model discloses a solve above-mentioned problem and the technical scheme who takes does: a positive and negative rotation large torque transmission device, wherein: the device consists of a drill rod tail, a reducing sleeve, a hexagonal connecting sleeve and an elastic check ring for a shaft, wherein the outer walls of the drill rod tail and the reducing sleeve are respectively provided with a first outer hexagonal and a second outer hexagonal, the inner part of the hexagonal connecting sleeve is axially provided with a through inner hexagonal I, the first outer hexagonal and the second outer hexagonal arranged on the outer walls of the drill rod tail and the reducing sleeve are sleeved in the inner hexagonal I on the inner surface of the hexagonal connecting sleeve, one end of the drill rod tail is connected with a drilling machine, the other end of the drill rod tail is provided with a left-handed wavy thread female thread and is matched with a wavy thread male thread at one end of the reducing sleeve, and the inner cavity of the drill rod tail is provided with a cooling; the middle part of the reducing sleeve is provided with a mounting groove of the elastic check ring for the shaft, the elastic check ring for the shaft is arranged in the mounting groove, the hexagonal connecting sleeve is limited in the axial direction, and the hexagonal connecting sleeve is prevented from moving in the axial direction.
Furthermore, an inner hexagonal II is also arranged in the inner cavity at the other end of the reducing sleeve, so that the reducing sleeve is conveniently connected with a drill rod.
The utility model adopts the axial connection of the male and female wave-shaped threads, and the wave-shaped threads have the advantages of good sealing performance, strong impact resistance, capability of bearing large torque transmission and the like; the drill shank, the reducing sleeve and the hexagonal connecting sleeve are connected in an internal and external hexagonal matching mode, the matching mode limits the rotary motion of the reducing sleeve relative to the drill shank, and the tight connection and the non-unscrewing of the male and female wavy threads can be ensured; the torsion force applied when the drill rod rotates forwards or reversely is mainly born by the matching connection part of the inner hexagon and the outer hexagon, and the inner hexagonal structure and the outer hexagonal structure have the advantages of simple processing, large transmission torque, strong damage bearing capacity and the like; the reducing sleeve is provided with an elastic retainer ring installation groove for the shaft, so that the elastic retainer ring for the shaft is conveniently installed, and the hexagonal connection sleeve is axially positioned; the other end of the reducing sleeve is connected with the drill rod in a hexagonal joint mode, and the functions of forward high-torque drilling, backward non-tripping and withdrawing of the drill rod and the like can be achieved. From above, the device has all realized the location connection function in circumference and axial, ensures that the drilling rod drilling in-process, no matter rig corotation or reversal, the rig homoenergetic passes through the drilling rod to power and transmits for the drill bit, realizes the transmission of big moment of torsion, changes the use limitation of levogyration rig, adapts to multiple operating mode in the pit and drilling tool operation requirement, realizes the drilling of mining machinery under the complicated operation operating mode and creeps into the function.
The utility model has the advantages of that:
1. the device adopts the wave form threaded connection form axially, adopts the hexagonal connection form radially, through two-way connection, has effectively improved the shock resistance of the device, can transmit great moment of torsion, makes the device accord with stock anchor rope and strut the requirement, adapts to multiple complicated operating mode in the pit.
2. The hexagonal reducing sleeve and the drill rod are butted in a hexagonal joint mode, so that the thread tripping phenomenon can be effectively prevented when the drill rod is clamped to rotate reversely, and the forward and reverse rotation functions of the drill rod are realized.
3. The drill shank, the reducing sleeve and the hexagonal connecting sleeve are all made of high-strength materials and are formed by finish machining after heat treatment, the fatigue limit is high, the impact resistance is high, the toughness is good, and the requirements of underground use are met.
4. The assembly and disassembly are convenient, during assembly, the wave-shaped male thread of the reducing sleeve is screwed into the female thread of the drill shank, after the wave-shaped male thread is screwed in place, the drill shank is basically aligned with the outer hexagon of the reducing sleeve, then the hexagonal connecting sleeve is slid in place, the inner hexagon of the hexagonal connecting sleeve is tightly matched with the drill shank and the outer hexagon of the reducing sleeve, finally the elastic check ring for the shaft is arranged, the assembly process is completed, and the disassembly is performed reversely.
5. And the bore bit shank and the inner cavity of the reducing sleeve are provided with cooling water channels, so that the drill rod is convenient to cool and flush in the drilling process.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of the interior of the structure of the present invention;
FIG. 3 is a schematic view of the construction of a shank adapter;
FIG. 4 is a schematic structural diagram of a reducing sleeve;
fig. 5 is a structural schematic diagram of the hexagonal connecting sleeve.
Detailed Description
As shown in fig. 1 to 5, the positive and negative rotation large torque transmission device according to the present embodiment is a device in which: the device consists of a drill bit shank 13-1, a reducing sleeve 13-2, a hexagonal connecting sleeve 13-3 and an elastic retainer ring 13-4 for a shaft, wherein the outer walls of the drill bit shank 13-1 and the reducing sleeve 13-2 are respectively provided with a first outer hexagonal 13-6 and a second outer hexagonal 13-9, the inner part of the hexagonal connecting sleeve 13-3 is axially provided with a through inner hexagonal I13-12, the first outer hexagonal 13-6 and the second outer hexagonal 13-9 which are arranged on the outer walls of the drill bit shank 13-1 and the reducing sleeve 13-2 are sleeved in an inner hexagonal I13-12 on the inner surface of the hexagonal connecting sleeve 13-3, one end of the drill bit shank 13-1 is connected with a drilling machine, the other end of the drill bit shank is provided with a left-handed corrugated female thread 13-7 and matched with a corrugated male thread 13-8 at one end of the reducing sleeve 13-2, and an inner cavity of the drill bit shank 13-1 is provided with a cooling water channel 13-5; the middle part of the reducing sleeve 13-2 is provided with an installation groove 13-10 of a shaft elastic check ring 13-4, the shaft elastic check ring 13-4 is arranged in the installation groove 13-10, and the hexagonal connecting sleeve 13-3 is limited in the axial direction to prevent the hexagonal connecting sleeve 13-3 from moving in the axial direction. An inner hexagonal II 13-11 is also arranged in the inner cavity at the other end of the reducing sleeve 13-2, so that the reducing sleeve can be conveniently connected with a drill rod.
Claims (2)
1. A positive and negative rotation large torque transmission device is characterized in that: the device consists of a drill rod tail (13-1), a reducing sleeve (13-2), a hexagonal connecting sleeve (13-3) and an elastic retainer ring (13-4) for a shaft, wherein the outer walls of the drill rod tail (13-1) and the reducing sleeve (13-2) are respectively provided with a first outer hexagonal (13-6) and a second outer hexagonal (13-9), the inner part of the hexagonal connecting sleeve (13-3) is axially provided with a through inner hexagonal I (13-12), the first outer hexagonal (13-6) and the second outer hexagonal (13-9) which are arranged on the outer walls of the drill rod tail (13-1) and the reducing sleeve (13-2) are sleeved in the inner hexagonal I (13-12) on the inner surface of the hexagonal connecting sleeve (13-3), one end of the drill rod tail (13-1) is connected with a drilling machine, the other end of the drill rod tail (13-1) is provided with a left-handed corrugated female thread (13-7) and is matched with a corrugated male thread (13-8) at one end of the reducing sleeve (13, the inner cavity of the drill bit shank (13-1) is provided with a cooling water channel (13-5) for facilitating the passing of cooling water; an installation groove (13-10) of the elastic check ring for the shaft (13-4) is arranged in the middle of the reducing sleeve (13-2), the elastic check ring for the shaft (13-4) is arranged in the installation groove (13-10), and the hexagonal connection sleeve (13-3) is limited in the axial direction to prevent the hexagonal connection sleeve (13-3) from moving in the axial direction.
2. A positive and negative rotation large torque transmission device as claimed in claim 1, wherein: an inner hexagonal II (13-11) is also arranged in the inner cavity at the other end of the reducing sleeve (13-2) to facilitate connection with a drill rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921153681.XU CN210460531U (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921153681.XU CN210460531U (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210460531U true CN210460531U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921153681.XU Active CN210460531U (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
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| Country | Link |
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| CN (1) | CN210460531U (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 |
-
2019
- 2019-07-22 CN CN201921153681.XU patent/CN210460531U/en active Active
Cited By (2)
| 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 |
| 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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