CN218914507U - Drill bit supporting device - Google Patents
Drill bit supporting device Download PDFInfo
- Publication number
- CN218914507U CN218914507U CN202222668534.4U CN202222668534U CN218914507U CN 218914507 U CN218914507 U CN 218914507U CN 202222668534 U CN202222668534 U CN 202222668534U CN 218914507 U CN218914507 U CN 218914507U
- Authority
- CN
- China
- Prior art keywords
- drill
- sleeve
- drill bit
- annular oil
- fixing sleeve
- 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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- 239000000945 filler Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 48
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a drill bit supporting device which comprises a fixed plate, wherein the fixed plate is provided with a mounting hole, the mounting hole of the fixed plate is used for mounting a drill bit supporting component, the drill bit supporting component comprises a rotatable drill sleeve and a bearing, the drill sleeve is provided with a central hole for a drill bit to pass through and support the drill bit, the drill sleeve is rotatably mounted through the bearing, and an oil filling hole is arranged on the drill sleeve. The horizontal drill sleeve can support high-speed rotary cutting operation of the horizontal drill sleeve, meanwhile, excessive friction between the drill bit and the drill sleeve is avoided, the drill bit is effectively protected from being excessively worn, and the service life of the drill bit is prolonged.
Description
Technical Field
The utility model relates to a processing auxiliary tool, in particular to a drill bit supporting device.
Background
For drilling with a horizontal drill rod, the drill rod is supported by a drill sleeve, the shaft of the drill rod passes through the drill sleeve and is supported by the drill sleeve, the drill bit is driven by a driving device to rotate at a high speed for drilling, and meanwhile lubricating oil is sprayed at the front part of the drill bit. The original drill bushing is only one tungsten steel drill bushing, can not rotate along with the drill bit, has huge loss on the drill bit, and can only spray lubricating oil on a cut part by a spray head, so that the lubrication is insufficient.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the drill bit supporting device which can effectively support the horizontal drill bit, ensure the supporting work of the horizontal drill bit and avoid the abrasion of the drill bit. For this purpose, the utility model adopts the following technical scheme:
the utility model provides a drill bit strutting arrangement, includes the fixed plate, the fixed plate sets up the mounting hole, its characterized in that, the fixed plate mounting hole is used for installing the drill bit supporting component, the drill bit supporting component includes rotatable drill bushing and bearing, the drill bushing sets up the centre bore and supplies the drill bit to pass and support the drill bit, the drill bushing is rotatably installed through the bearing, and set up the tank filler neck on the drill bushing.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:
the drill bit support assembly further comprises a drill bushing fixing sleeve, the rear portion of the drill bushing is connected with the drill bushing fixing sleeve through the bearing, the front portion of the drill bushing is in clearance fit with the drill bushing fixing sleeve to enable relative rotation, and the oil filling hole is formed in the front portion of the drill bushing.
The fixed plate and the drill bushing are provided with oil filling holes which are communicated, the oil filling holes of the drill bushing penetrate through the wall of the drill bushing, the outer surface of the drill bushing is provided with an annular oil groove corresponding to the oil filling holes of the drill bushing, an oil filling hole inlet of the drill bushing is positioned at the bottom of the annular oil groove of the drill bushing, and the oil filling holes of the drill bushing are correspondingly communicated with the annular oil groove of the drill bushing.
The outer surface of the drill bushing fixing sleeve is provided with an annular oil groove corresponding to the position of the oil filling hole of the drill bushing fixing sleeve, and the oil filling hole inlet of the drill bushing fixing sleeve is positioned at the bottom of the annular oil groove on the outer surface of the drill bushing fixing sleeve.
The inner surface of the drill sleeve fixing sleeve is provided with a corresponding annular oil groove corresponding to the annular oil groove on the drill sleeve, an oil filler hole outlet of the drill sleeve fixing sleeve is positioned at the bottom of the annular oil groove on the inner surface of the drill sleeve fixing sleeve, and the annular oil groove on the drill sleeve and the annular oil groove on the inner surface of the drill sleeve fixing sleeve are overlapped in the axial direction to form an annular oil cavity.
The drill sleeve fixing sleeve and the drill sleeve are steel parts with different hardness, and the hardness of the drill sleeve is higher than that of the drill sleeve fixing sleeve; the drill bushing fixing sleeve is in interference fit connection with the wall of the mounting hole of the fixing plate, the inner ring of the bearing is in interference fit connection with the drill bushing, and the outer ring of the bearing is in interference fit connection with the drill bushing fixing sleeve.
The inner hole of the drill bushing fixing sleeve is a step hole, the inner diameter of a hole section matched with the bearing is larger than that of a hole section matched with the drill bushing, the inner diameter of the bearing inner ring is consistent with that of the hole section matched with the drill bushing of the drill bushing fixing sleeve, the outer wall of the drill bushing is arranged to be a cylindrical main body, and an annular oil groove is formed in the front of the circumferential main body and corresponds to the oil filling hole.
By adopting the technical scheme of the utility model, the horizontal drill sleeve can support high-speed rotary cutting operation, and meanwhile, excessive friction between the drill bit and the drill sleeve is avoided, so that the drill bit is effectively protected from being excessively worn, and the service life of the drill bit is prolonged.
Drawings
Fig. 1 is a schematic view illustrating a usage state according to an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of the structure shown in fig. 1.
Fig. 3 is a cross-sectional view of the drill sleeve securing sleeve.
Fig. 4 is a schematic view of a drill sleeve retaining sleeve.
Fig. 5 is a schematic view of a drill sleeve.
Detailed Description
Reference is made to the accompanying drawings. The utility model provides a drill bit supporting device, which comprises a fixed plate 1, wherein the fixed plate 1 is provided with a mounting hole 10, the mounting hole 10 of the fixed plate is used for mounting a drill bit supporting assembly, the drill bit supporting assembly comprises a rotatable drill bushing 2 and a bearing 3, the drill bushing 2 is provided with a central hole 20 for a drill bit 100 to penetrate through and support the drill bit 100, and the reference numeral 200 is a workpiece to be drilled. Reference numeral 101 is a jig for the drill bit 100.
The drill bushing 2 is rotatably mounted by means of a bearing 3, and a filler neck 21 is provided on the drill bushing 2. A plurality of said oil filling holes 21 may be provided in the drill bushing 2 along its circumference, said oil filling holes 21 penetrating the bushing wall.
The drill bit support assembly further comprises a drill bushing fixing sleeve 4, the front part of the drill bushing 2 is connected with the drill bushing fixing sleeve 4 through the bearing 3, the rear part of the drill bushing 2 and the drill bushing fixing sleeve 4 are in clearance fit and can rotate relatively, and the oil filling hole is formed in the front part of the drill bushing.
The fixed plate 1 and the drill bushing fixed sleeve 4 are provided with oil filling holes 11 and 41 which are communicated, the outer surface of the drill bushing 2 is provided with an annular oil groove 22 corresponding to the oil filling hole 21 on the drill bushing 2, an inlet of the oil filling hole 21 is positioned at the bottom of the annular oil groove 22, and the oil filling hole 41 on the drill bushing fixed sleeve 4 is correspondingly communicated with the annular oil groove 22.
The outer surface of the drill bushing fixing sleeve 4 is provided with an annular oil groove 42 corresponding to the position of the oil filling hole 41 of the drill bushing fixing sleeve, and the inlet of the oil filling hole 41 is positioned at the bottom of the annular oil groove 42.
The inner surface of the drill bushing fixing sleeve 4 is provided with a corresponding annular oil groove 43 corresponding to the annular oil groove 22 on the drill bushing, the outlet of the oil filling hole 41 is positioned at the bottom of the annular oil groove 43, and the annular oil groove 22 and the annular oil groove 43 are overlapped in the axial direction to form an annular oil cavity.
Lubricating oil passes through the oil filling channel formed by the oil filling hole and reaches the middle part of the drill rod of the drill bit, and is transmitted to the cutting part through the spiral cutting edge of the drill bit, so that the lubricating effect is better. The oil holes on the fixing plate 1, the drill bushing fixing bushing 4 and the drill bushing 2 are arranged in a plurality according to the oil quantity requirement during cutting.
In the utility model, the drill bushing fixing sleeve 4 and the drill bushing 2 are preferably steel parts with different hardness, the hardness of the drill bushing 2 is higher than that of the drill bushing fixing sleeve 4, and the wall of the mounting hole 10 of the drill bushing fixing sleeve 4 and the wall of the mounting hole 10 of the fixing plate 1 are in interference fit connection, so that the drill bushing fixing sleeve is more convenient to mount and has long service life. The inner ring of the bearing 3 is in interference fit connection with the drill bushing 1, and the outer ring of the bearing 3 is in interference fit connection with the drill bushing fixing sleeve 4.
The inner hole 40 of the drill bushing fixing sleeve 4 is a step hole, the inner diameter of a hole section 401 matched with the bearing is larger than the inner diameter of a hole section 402 matched with the drill bushing, the inner diameter of the inner ring of the bearing 3 is consistent with the inner diameter of the hole section 402 matched with the drill bushing 2 of the drill bushing fixing sleeve 4, the outer wall of the drill bushing 2 is provided with a cylindrical main body, and the annular oil groove 22 is arranged at the front part of the cylindrical main body. Thus, the processing, manufacturing and assembling of the components are more convenient.
The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a drill bit strutting arrangement, includes the fixed plate, the fixed plate sets up the mounting hole, its characterized in that, the fixed plate mounting hole is used for installing the drill bit supporting component, the drill bit supporting component includes rotatable drill bushing and bearing, the drill bushing sets up the centre bore and supplies the drill bit to pass and support the drill bit, the drill bushing is rotatably installed through the bearing, and set up the tank filler neck on the drill bushing.
2. The bit support apparatus of claim 1 wherein said bit support assembly further comprises a drill sleeve retaining sleeve, a rear portion of said drill sleeve and said drill sleeve retaining sleeve being connected by said bearing, a front portion of said drill sleeve and said drill sleeve retaining sleeve being clearance fit for relative rotation, said oil filler hole being disposed in said front portion of said drill sleeve.
3. The drill bit supporting device according to claim 2, wherein the fixed plate and the drill sleeve fixing sleeve are provided with oil filling holes which are communicated, the oil filling holes of the drill sleeve penetrate through the drill sleeve wall, the outer surface of the drill sleeve is provided with annular oil grooves corresponding to the oil filling holes of the drill sleeve, the oil filling hole inlets of the drill sleeve are positioned at the bottom of the annular oil grooves of the drill sleeve, and the oil filling holes of the drill sleeve fixing sleeve are correspondingly communicated with the annular oil grooves of the drill sleeve.
4. A drill bit support device according to claim 3, wherein the outer surface of the drill sleeve fixing sleeve is provided with an annular oil groove corresponding to the position of the oil filling hole of the drill sleeve fixing sleeve, and the oil filling hole inlet of the drill sleeve fixing sleeve is positioned at the bottom of the annular oil groove on the outer surface of the drill sleeve fixing sleeve.
5. The drill bit supporting device as recited in claim 4, wherein the inner surface of the drill sleeve fixing sleeve is provided with a corresponding annular oil groove corresponding to the annular oil groove on the drill sleeve, the oil filling hole outlet of the drill sleeve fixing sleeve is positioned at the bottom of the annular oil groove on the inner surface of the drill sleeve fixing sleeve, and the annular oil groove on the drill sleeve and the annular oil groove on the inner surface of the drill sleeve fixing sleeve are overlapped in the axial direction to form an annular oil cavity.
6. A drill bit support device as claimed in claim 2, wherein the drill bit holder and the drill bit holder are steel parts of different hardness, the hardness of the drill bit holder being higher than that of the drill bit holder; the drill bushing fixing sleeve is in interference fit connection with the wall of the mounting hole of the fixing plate, the inner ring of the bearing is in interference fit connection with the drill bushing, and the outer ring of the bearing is in interference fit connection with the drill bushing fixing sleeve.
7. A drill bit support device according to claim 2 or 6, wherein the inner bore of the drill sleeve fixing sleeve is a stepped bore, the bore section of the bore section which cooperates with the bearing is larger than the bore section which cooperates with the drill sleeve, the bore diameter of the inner ring of the bearing is identical to the bore section of the bore sleeve fixing sleeve which cooperates with the drill sleeve, the outer wall of the drill sleeve is provided as a cylindrical body, and an annular oil groove is provided at the front part of the circumferential body corresponding to the oil filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222668534.4U CN218914507U (en) | 2022-10-09 | 2022-10-09 | Drill bit supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222668534.4U CN218914507U (en) | 2022-10-09 | 2022-10-09 | Drill bit supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218914507U true CN218914507U (en) | 2023-04-25 |
Family
ID=86043329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222668534.4U Active CN218914507U (en) | 2022-10-09 | 2022-10-09 | Drill bit supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218914507U (en) |
-
2022
- 2022-10-09 CN CN202222668534.4U patent/CN218914507U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Sanou Intelligent Technology Co.,Ltd. Assignor: ZHEJIANG SANOU MACHINERY Co.,Ltd. Contract record no.: X2023330000846 Denomination of utility model: A drill bit support device Granted publication date: 20230425 License type: Common License Record date: 20231115 |