CN215698261U - Drill bit quick connecting sleeve and drill bit quick connecting mechanism of pipeline tapping machine - Google Patents
Drill bit quick connecting sleeve and drill bit quick connecting mechanism of pipeline tapping machine Download PDFInfo
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- CN215698261U CN215698261U CN202121324723.9U CN202121324723U CN215698261U CN 215698261 U CN215698261 U CN 215698261U CN 202121324723 U CN202121324723 U CN 202121324723U CN 215698261 U CN215698261 U CN 215698261U
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Abstract
The utility model relates to a drill bit quick connecting sleeve of a pipeline tapping machine, which comprises a sleeve body with a centering hole extending axially; two ends of the sleeve body are respectively provided with a motor output shaft connecting end and a drill bit connecting component connecting end; the two ends of the sleeve body are respectively provided with a motor output shaft lock hole and a drill bit connecting component lock hole which are used for the penetration of the locking element and communicated with the centering hole. The quick drill bit connecting mechanism of the pipeline tapping machine comprises a motor output shaft, a drill bit connecting assembly and the quick drill bit connecting sleeve. It mainly solves the defect that threaded connection exists between current motor output shaft and the drill bit coupling assembling, and it had both been favorable to motor output shaft and the drill bit coupling assembling of quick connect pipe tapping machine, was favorable to the quick dismantlement between the two again, and its simple structure, life is longer, can ensure during the use that the drill bit has higher rotation accuracy.
Description
Technical Field
The utility model relates to a drill bit connecting structure of a pipeline tapping machine, in particular to a drill bit quick connecting sleeve and a drill bit quick connecting mechanism of a pipeline tapping machine.
Background
At present, the pipeline branch is installed and connected by drilling holes on the pipeline and then connecting branch pipelines by using a three-way or four-way pipe joint, so that a plurality of hole drilling machines are applied in pipeline processing equipment. At present, most of the motors of the pipeline tapping machines on the market are connected with the drill bit connecting assembly through drill chucks (other special connecting sleeves are also provided), but the motors are connected with the drill chucks (or the special connecting sleeves) mostly through threads, and the threads are reversely threaded and are screwed more and more tightly. This structure has several disadvantages:
1. drill chucks often cannot be removed or the threads damaged.
2. The radial run-out of the drill bit is large.
3. The cost of the drill bit attachment structure is high.
4. The service life is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick drill bit connecting sleeve and a quick drill bit connecting mechanism of a pipeline tapping machine, which mainly solve the defects of threaded connection between the existing motor output shaft and a drill bit connecting component.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a drill bit quick connecting sleeve of pipeline tapping machine which characterized in that: it comprises a sleeve body with a centering hole extending axially; two ends of the sleeve body are respectively provided with a motor output shaft connecting end and a drill bit connecting component connecting end; the two ends of the sleeve body are respectively provided with a motor output shaft lock hole and a drill bit connecting component lock hole which are used for the penetration of the locking element and communicated with the centering hole.
The drill bit quick connecting sleeve of the pipeline tapping machine is characterized in that: the motor output shaft connecting end and the drill bit connecting assembly connecting end are both of a scarf joint type structure corresponding to the motor output shaft and the drill bit connecting assembly.
The drill bit quick connecting sleeve of the pipeline tapping machine is characterized in that: the scarf joint structure is a flat square structure.
The drill bit quick connecting sleeve of the pipeline tapping machine is characterized in that: the centering hole extends axially and penetrates to two ends of the sleeve body.
The utility model provides a drill bit quick coupling mechanism of pipeline tapping machine which characterized in that: the drill bit quick connecting sleeve comprises a motor output shaft, a drill bit connecting assembly and the drill bit quick connecting sleeve; wherein:
the motor output shaft comprises a first embedded part which can be connected to the motor output shaft connecting end of the drill bit quick connecting sleeve in a non-rotating manner, a motor output shaft centering shaft and a first positioning groove which is arranged between the first embedded part and the motor output shaft centering shaft;
the drill bit connecting assembly comprises a second embedded part which can be connected to the connecting end of the drill bit connecting assembly of the drill bit quick connecting sleeve in a non-rotating manner, a drill bit connecting assembly centering shaft and a second positioning groove which is arranged between the second embedded part and the drill bit connecting assembly centering shaft;
and the number of the first and second groups,
the first locking element penetrates through a motor output shaft lock hole and the inner end of the first locking element is locked into the first positioning groove after a motor output shaft centering shaft of the motor output shaft is inserted into a centering hole of the drill bit quick connecting sleeve;
and the second locking element penetrates into the locking hole of the drill bit connecting assembly and the inner end of the second locking element is locked into the second positioning groove after the drill bit connecting assembly centering shaft of the drill bit connecting assembly is inserted into the centering hole of the drill bit quick connecting sleeve.
Pipeline tapping machine's drill bit quick connect mechanism, its characterized in that: the first and second locking elements are set screws.
Pipeline tapping machine's drill bit quick connect mechanism, its characterized in that: the first and second locking elements are fixed pins.
The utility model has the advantages that:
1. the drill bit quick connecting sleeve can be quickly connected and detached with the motor output shaft and the drill bit connecting assembly, and the drill bit quick connecting sleeve, the motor output shaft and the drill bit connecting assembly are not in threaded connection structures as in the prior art, but are in scarf joint type connection structures, so that the drill bit quick connecting sleeve can be quickly connected and locked in the radial direction. The scarf joint is more conducive to mating and transmitting torque than a threaded connection.
2. The motor output shaft and the drill bit connecting assembly are respectively provided with the positioning groove, and the locking element penetrates through the locking hole in the drill bit quick connecting sleeve and is locked in the positioning groove, so that the axial connection and locking between the motor output shaft and the drill bit connecting assembly and the drill bit quick connecting sleeve can be quickly realized.
3. The motor output shaft and the drill bit connecting assembly are provided with centering shafts, and the centering shafts can be matched with the centering holes in the drill bit quick connecting sleeve to play a centering role, so that the connecting accuracy and the concentricity are improved. If the centering hole extends axially and penetrates to the two ends of the sleeve body, the drill bit quick connecting sleeve is easier to process, and the concentricity of the two ends is high. The drill bit jumps less when using, can realize high accuracy processing.
4. By the structure, the motor output shaft, the drill bit connecting assembly and the drill bit quick connecting sleeve can keep certain hardness after heat treatment, so that the service life of a product is ensured.
As mentioned above, the structure of the utility model enables the connection and the disassembly of the motor output shaft and the drill bit connecting component to be very convenient and labor-saving.
Drawings
Fig. 1 is a schematic structural view of a drill bit quick-connect mechanism embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a drill bit quick connection sleeve in embodiment 1 of the present invention.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a schematic structural view of a motor having a motor output shaft in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of a drill bit connecting assembly in embodiment 1 of the present invention.
In the figure: 1-motor output shaft; 2-fast connecting sleeve of drill bit; 3-a drill bit connection assembly; 4-a locking element; 5-a first scarf joint; 6-a first positioning groove; 7-centering shaft of motor output shaft; 81-motor output shaft connecting end; 82-a bit connection assembly connection end; 9-centering the hole; 91-motor output shaft lock hole; 92-drill bit connecting component lock hole.
Detailed Description
Please refer to fig. 1-5, which are schematic structural views of an embodiment 1 of a quick drill connecting mechanism of a pipe tapping machine according to the present invention. As shown in the figure: the drilling machine comprises a motor output shaft 1, a drill bit connecting assembly 3 and a drill bit quick connecting sleeve 3.
Wherein:
the drill bit quick connecting sleeve 2 comprises a sleeve body with a centering hole 9 extending axially (in the embodiment 1, the centering hole 9 extends axially and penetrates through to two ends of the sleeve body); the two ends of the sleeve body are respectively provided with a motor output shaft connecting end 81 and a drill bit connecting component connecting end 82; the two ends of the sleeve body are respectively provided with a motor output shaft lock hole 91 and a drill bit connecting component lock hole 92 which are used for the locking element to penetrate and are communicated with the centering hole 9.
In this embodiment 1, the motor output shaft connecting end 81 and the drill bit connecting assembly connecting end 82 are both of an embedded structure corresponding to the motor output shaft 1 and the drill bit connecting assembly 3, specifically, see fig. 2 and 3, the embedded structure is a flat square structure, that is, the middle of the motor output shaft connecting end 81 and the drill bit connecting assembly connecting end 82 is a concave straight-line-shaped groove, two ends of the straight-line-shaped groove are corresponding boss structures, the inner end of the boss structure is a corresponding plane, and the outer end of the boss structure is an arc shape corresponding to the outer wall of the sleeve body; the bottom of the concave straight-line-shaped groove is internally provided with one end of a centering hole 9.
Referring to fig. 4, the motor output shaft 1 includes a first engaging portion 5 connected to a motor output shaft connecting end 81 of the drill bit quick-coupling sleeve, a motor output shaft centering shaft 7, and a first positioning groove 6 disposed between the first engaging portion 5 and the motor output shaft centering shaft 7. Corresponding to the flat square structure of the motor output shaft connecting end 81 in the embodiment 1, the first embedding part 5 is provided with a boss capable of being embedded into a straight-line-shaped groove, and after the motor output shaft centering shaft 7 of the motor output shaft 1 is inserted into the centering hole 9, the boss of the first embedding part 5 can be embedded into the straight-line-shaped groove of the motor output shaft connecting end 81, so that the motor output shaft 1 and one end of the drill bit quick connecting sleeve 2 are locked in the radial direction.
Referring to fig. 5, the drill bit connecting assembly 3 includes a second engaging portion 12 connected to the drill bit connecting assembly connecting end 82 of the drill bit quick connecting sleeve, a drill bit connecting assembly centering shaft 10, and a second positioning slot 11 disposed between the second engaging portion 12 and the drill bit connecting assembly centering shaft 10. Corresponding to the flat square structure of the bit connecting assembly connecting end 82 of the embodiment 1, the second embedding part 12 also has a boss capable of being embedded into a straight-line-shaped groove, and after the bit connecting assembly centering shaft 10 of the bit connecting assembly 3 is inserted into the centering hole 9, the boss of the second embedding part 12 can be embedded into the straight-line-shaped groove of the bit connecting assembly connecting end 82, so that the bit connecting assembly 3 and the other end of the bit quick connecting sleeve 2 are locked in the radial direction.
And the number of the first and second groups,
and the locking element 4 penetrates into the motor output shaft lock hole 91 and the inner end of the locking element is locked into the first positioning groove 6 after the motor output shaft centering shaft 7 of the motor output shaft 1 is inserted into the centering hole 9 of the drill bit quick connecting sleeve. In this way, the motor output shaft 1 and one end of the drill bit quick connecting sleeve 2 are locked in the axial direction.
And the locking element 4 penetrates into the drill bit connecting assembly locking hole 92 and locks the inner end of the locking element into the second positioning groove 11 after the drill bit connecting assembly centering shaft 10 of the drill bit connecting assembly 3 is inserted into the centering hole 9 of the drill bit quick connecting sleeve. In this way, the drill bit connecting component 3 and the other end of the drill bit quick connecting sleeve 2 are locked in the axial direction.
In embodiment 1, the locking member 4 may be a fixing screw or a fixing pin.
The utility model may also employ the following variations:
1. in the utility model, the two ends of the sleeve body can be respectively provided with the centering holes, and the centering holes are not necessarily communicated as long as the centering holes are concentric.
2. In the utility model, the connecting end of the motor output shaft and the connecting end of the drill bit connecting assembly can adopt a tooth or tooth socket structure, and the scarf joint parts of the correspondingly matched motor output shaft and the drill bit connecting assembly can correspondingly adopt a tooth socket and tooth structure, so that the quick connection and the radial locking between the motor output shaft and the drill bit connecting assembly are realized.
3. In the present invention, the locking member may have a structure of an elastic pin, and the elastic pin may secure a locking force of an inner end thereof.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the content of the claims of the present invention should be within the technical scope of the present invention.
Claims (7)
1. The utility model provides a drill bit quick connecting sleeve of pipeline tapping machine which characterized in that: it comprises a sleeve body with a centering hole (9) extending axially; two ends of the sleeve body are respectively provided with a motor output shaft connecting end (81) and a drill bit connecting component connecting end (82); two ends of the sleeve body are respectively provided with a motor output shaft lock hole (91) and a drill bit connecting component lock hole (92) which are used for the locking element to penetrate and are communicated with the centering hole (9).
2. The quick connection sleeve for drill of pipeline tapping machine as claimed in claim 1, wherein: the motor output shaft connecting end (81) and the drill bit connecting assembly connecting end (82) are both of a scarf joint type structure corresponding to the motor output shaft and the drill bit connecting assembly.
3. The quick connecting sleeve of drill bit of pipe tapping machine according to claim 2, characterized in that: the scarf joint structure is a flat square structure.
4. The quick connection sleeve for drill of pipeline tapping machine as claimed in claim 1, wherein: the centering hole (9) extends axially and penetrates to two ends of the sleeve body.
5. The utility model provides a drill bit quick coupling mechanism of pipeline tapping machine which characterized in that: the quick drill bit connecting sleeve comprises a motor output shaft (1), a drill bit connecting assembly (3) and the quick drill bit connecting sleeve as claimed in claim 1 or 2 or 3 or 4; wherein:
the motor output shaft (1) comprises a first embedded part (5) which can be connected to a motor output shaft connecting end (81) of the drill bit quick connecting sleeve in a non-rotating manner, a motor output shaft centering shaft (7) and a first positioning groove (6) which is arranged between the first embedded part (5) and the motor output shaft centering shaft (7);
the drill bit connecting assembly (3) comprises a second embedded part (12) which can be connected to a drill bit connecting assembly connecting end (82) of the drill bit quick connecting sleeve in a non-rotating manner, a drill bit connecting assembly centering shaft (10), and a second positioning groove (11) which is arranged between the second embedded part (12) and the drill bit connecting assembly centering shaft (10);
and the number of the first and second groups,
the first locking element penetrates through a motor output shaft lock hole (91) and the inner end of the first locking element is locked into the first positioning groove (6) after a motor output shaft centering shaft (7) of the motor output shaft (1) is inserted into a centering hole (9) of the drill bit quick connecting sleeve;
and the second locking element penetrates into the drill bit connecting assembly lock hole (92) and locks the inner end of the second locking element into the second positioning groove (11) after the drill bit connecting assembly centering shaft (10) of the drill bit connecting assembly (3) is inserted into the centering hole (9) of the drill bit quick connecting sleeve.
6. The quick connection mechanism for a drill of a pipe tapping machine as claimed in claim 5, wherein: the first and second locking elements are set screws.
7. The quick connection mechanism for a drill of a pipe tapping machine as claimed in claim 5, wherein: the first and second locking elements are fixed pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324723.9U CN215698261U (en) | 2021-06-15 | 2021-06-15 | Drill bit quick connecting sleeve and drill bit quick connecting mechanism of pipeline tapping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324723.9U CN215698261U (en) | 2021-06-15 | 2021-06-15 | Drill bit quick connecting sleeve and drill bit quick connecting mechanism of pipeline tapping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215698261U true CN215698261U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121324723.9U Active CN215698261U (en) | 2021-06-15 | 2021-06-15 | Drill bit quick connecting sleeve and drill bit quick connecting mechanism of pipeline tapping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215698261U (en) |
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2021
- 2021-06-15 CN CN202121324723.9U patent/CN215698261U/en active Active
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