CN209477373U - A kind of certainly cooling drill bit of pivoting support processing - Google Patents
A kind of certainly cooling drill bit of pivoting support processing Download PDFInfo
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- CN209477373U CN209477373U CN201821501641.5U CN201821501641U CN209477373U CN 209477373 U CN209477373 U CN 209477373U CN 201821501641 U CN201821501641 U CN 201821501641U CN 209477373 U CN209477373 U CN 209477373U
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- water pipe
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Abstract
The utility model discloses a kind of processing of pivoting support with from cooling drill bit, belongs to machining cutter field.The utility model includes the drill shank and bit head of integral type, and spiral shape chip space is offered in bit head peripheral surface, is provided with water pipe in the peripheral surface being located in spiral shape chip space in bit head.The utility model is by water pipe directly to the working region spraying cooling water of chisel edge, to carry out directly cooling, extension drilling life of bit to the working region of chisel edge, while the processing is simple for the utility model drill bit, manufacturing cost is low.
Description
Technical field
The utility model relates to be machined to use cutter field, more specifically to a kind of processing of pivoting support with certainly
Cooling drill bit.
Background technique
Currently, the rapid development of bearing industry and its continuous expansion of application field, make bearing type, kind also increasingly
More, pivoting support is a kind of large size bearing for being able to bear combined load, and pivoting support is in real industry using very extensive, quilt
People are known as " joint of machine ", be need to make opposite rotary motion between two articles, and need to bear simultaneously axial force, radial force,
Important transmission parts necessary to the machinery of tilting moment are machined with multiple holes on annular surface, usually mostly use drill bit
The hole of its annular surface is processed.
Drill bit be it is a kind of on solid material drilling go out through-hole or blind hole, and reaming can be carried out to existing hole
Cutter is most widely used aperture knife tool.Drill bit is mainly made of drillstock and drill bit two parts, and bit exterior offers
Spiral chip space, chisel edge portion are configured with multiple blade parts.Drill bit is when processing Workpiece boring, the operating speed of drill bit
Degree is very high, therefore drill bit part easily generates high temperature, influences the performance of drill bit, greatly reduces the service life of drill bit.
It is directed to and how the problem of effectively cooling is to improve drilling life of bit is carried out to the drill bit part of drill bit, it is existing
Have related patents scheme in technology to disclose, such as Chinese Patent Application No.: 2010205323016, the applying date: 09 month 2010
15 days, invention and created name are as follows: high-low-pressure dual-purpose spray water drill bit, this application discloses a kind of high-low-pressure dual-purpose spray water drill bit,
It includes the drill shank and bit head of integral type, runs through the cooling hole having for being passed through high pressure water inside drill shank and bit head,
Two spiral shape chip spaces are offered in the peripheral surface of bit head, front-end configuration there are multiple blades, is located at two in bit head
Respectively offer spiral shape sink in peripheral surface between chip space, sink, which is formed, links up bit head front end and external logical
Road sprays low pressure water to bit head, and low pressure water can flow into bit head front end along spiral shape sink and carry out water-cooled cooling.This application
Case realizes the fast cooling to drill bit part to a certain extent, but it still has the following disadvantages: (1) its drill shank
With bit head inside through the cooling hole having for being passed through high pressure water, the difficulty of processing of the cooling hole is higher, so that the system of drill bit
Make higher cost；(2) the spiral shape sink being arranged thereon is easily plugged in drilling processing, influences to be discharged, while passing through spiral shell
The cooling water dissipation for revolving shape sink arrival drill bit part is more, when not being passed through high pressure water in cooling hole, only sprays to bit head low
It when pressing water, is insufficient to assure that cooling water reaches the effective discharge of drill bit part, be easy to cause drill bit part cooling insufficient and shadow
Ring drilling life of bit.
In conclusion how effectively the drill bit part of drill bit to be cooled down on the basis of reducing drill bit manufacturing cost,
Be in the prior art urgent need to resolve the technical issues of.
Utility model content
1. utility model technical problems to be solved
The purpose of the utility model is to overcome in the prior art can not be on the basis of reducing drill bit manufacturing cost effectively
Cooling deficiency is carried out to the drill bit part of drill bit, provides a kind of certainly cooling drill bit of pivoting support processing, it is straight by water pipe
The working region spraying cooling water to chisel edge is connect, to carry out directly cooling, extension brill to the working region of chisel edge
Head service life, the processing is simple for drill bit, and manufacturing cost is low.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model are as follows:
With from cooling drill bit, drill shank and bit head including integral type are described for the pivoting support processing of the utility model
Spiral shape chip space is offered in bit head peripheral surface, is arranged in the peripheral surface being located in spiral shape chip space in bit head
There is water pipe.
Further, several spiral shape water are offered in the peripheral surface being located in spiral shape chip space in bit head
Tube seat, every spiral shape water pipe ditch have been embedded in water pipe.
Further, a spiral shape water is offered in the peripheral surface of spiral shape chip removal trench bottom in bit head
Tube seat.
Further, it is located in bit head in the peripheral surface in the middle part of two inner sidewalls of spiral shape chip space and opens up respectively
There is a spiral shape water pipe ditch.
Further, the opening at the top of the spiral shape water pipe ditch is sealed by sealing strip.
Further, the front-end configuration of the bit head has several blades；When bit head is placed vertically, the spiral shell
It revolves shape water pipe ditch and embeds the upper end that the location of front end of water inlet pipe is higher than all blades.
Further, the direction of sectional area to the bit head front end of spiral shape water pipe ditch is cumulative at the water pipe front end.
3. beneficial effect
Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:
(1) in the utility model, several spiral shells are offered in the peripheral surface in spiral shape chip space in bit head
Shape water pipe ditch is revolved, every spiral shape water pipe ditch has been embedded in water pipe, when bit bore, can directly pass through water pipe to chisel edge
Working region spraying cooling water extend drilling life of bit, phase to carry out to the working region of chisel edge directly cooling
Than in the prior art drill shank and bit head processing through cooling hole carry out water-spraying control mode, the utility model from
The processing is simple for cooling drill bit, and manufacturing cost is low, and a plurality of spiral shape water pipe ditch can be processed, every spiral shape water pipe ditch be embedded in
A few water pipe, substantially increases the supply of cooling water, improves cooling efficiency, reaches on the basis of low manufacturing cost to drill bit
Drill bit part carries out effectively cooling function；Wherein, water pipe is embedded in spiral shape water pipe ditch, during avoiding bit bore
Damage of the scrap to water pipe, and water in-pipe flow is not contacted with the scrap in outside, the accumulation of scrap will not in spiral shape chip space
Influence outlet effect.
(2) in the utility model, three spirals are offered in the peripheral surface in spiral shape chip space in bit head
Shape water pipe ditch, this three spiral shape water pipe ditchs are located in two inner sidewalls of spiral shape chip removal trench bottom and spiral shape chip space
In portion, on the one hand quantity that three spiral shape water pipe ditchs increase corresponding water pipe is set, improves cooling water flow, is conducive to
The cooling at drill bit position, on the other hand three spiral shape water pipe ditchs are not located at the top of spiral shape chip space, when avoiding drilling
The outer side contacts of aperture and bit head and the damage to spiral shape water pipe ditch.
(3) in the utility model, the opening at the top of spiral shape water pipe ditch is sealed by sealing strip, has both made water pipe will not be by
The scrap of generation cuts damage, and avoids water pipe from being thrown out of in high speed rotation and come.
(4) in the utility model, when bit bore, bit head front end is in the condition of high temperature, is arranged in the utility model and works as
When bit head is placed vertically, spiral shape water pipe ditch embeds the upper end that the location of front end of water inlet pipe is higher than all blades, i.e.,
Bit head work normally when, water pipe spray cooling water end do not reach blade upper end region below, thus avoid blade and
Localized high temperature regions around blade damage the calcination of water pipe, improve the service life of water pipe.
(5) in the utility model, the direction of the sectional area of spiral shape water pipe ditch to bit head front end is cumulative at water pipe front end,
So that cooling water sprays after water pipe end outflow along the spiral shape water pipe ditch end of aperture flaring, so that cooling water is more
Being sprayed on blade to be cooled for dispersion, is conducive to the cooling of drill bit.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the pivoting support processing from cooling drill bit of embodiment；
Fig. 2 be Fig. 1 in along A-A to cross-sectional view.
Label declaration in schematic diagram: 1, drill shank；2, bit head；3, spiral shape chip space；4, blade；5, spiral shape water
Tube seat；6, sealing strip；7, water pipe.
Specific embodiment
For the content for further appreciating that the utility model, the utility model work is retouched in detail now in conjunction with drawings and examples
It states.
Embodiment 1
With reference to Fig. 1 and Fig. 2, the pivoting support processing of the present embodiment is with certainly cooling drill bit, 1 He of drill shank including integral type
Bit head 2 offers spiral shape chip space 3, the week being located in spiral shape chip space 3 in bit head 2 in 2 peripheral surface of bit head
Several spiral shape water pipe ditchs 5 are offered on surface, every spiral shape water pipe ditch 5 has been embedded in water pipe 7.
In the present embodiment, several spiral shapes are offered in the peripheral surface in spiral shape chip space 3 in bit head 2
Water pipe ditch 5, every spiral shape water pipe ditch 5 has been embedded in water pipe 7, when bit bore, can directly pass through water pipe 7 to chisel edge
Working region (i.e. 4 position of blade) spraying cooling water prolong to be carried out to the working region of chisel edge directly cooling
Long drill bit service life, compared with the prior art in drill shank and bit head processing through cooling hole carry out water-spraying control side
Formula, the processing is simple for the certainly cooling drill bit of the present embodiment, and manufacturing cost is low, and a plurality of spiral shape water pipe ditch 5, every spiral can be processed
Shape water pipe ditch 5 is embedded at least one water pipe 7, substantially increases the supply of cooling water, improves cooling efficiency, reaches low system
It causes to carry out drill bit drill bit part effectively cooling function on the basis of this.Wherein, water pipe 7 is embedded in spiral shape water pipe ditch 5,
Damage of the scrap to water pipe 7 during bit bore is avoided, and water flow is not contacted with the scrap in outside in water pipe 7, spiral shape
The accumulation of scrap will not influence outlet effect in chip space 3.
Embodiment 2
With reference to Fig. 1 and Fig. 2, the pivoting support processing of the present embodiment with from cooling drill bit, structure substantially with embodiment 1,
It is further: a spiral shape water pipe ditch 5 is offered in the peripheral surface of 3 bottom of spiral shape chip space in bit head 2,
It is located in the peripheral surface in the middle part of 3 two inner sidewalls of spiral shape chip space in bit head 2 and offers a spiral shape water pipe respectively
Slot 5.
In the present embodiment, three spiral shape water are offered in the peripheral surface in spiral shape chip space 3 in bit head 2
Tube seat 5, this three spiral shape water pipe ditchs 5 are located in 3 two inner sidewalls in 3 bottom of spiral shape chip space and spiral shape chip space
In portion, the quantity that three 5 one side of spiral shape water pipe ditch increase corresponding water pipe 7 is set, improves cooling water flow, favorably
Cooling in drill bit position, on the other hand three spiral shape water pipe ditchs 5 are not located at the top of spiral shape chip space 3, avoid boring
Aperture and the outer side contacts of bit head 2 when hole and the damage to spiral shape water pipe ditch 5.(when drilling, bit head 2 is to protrude into aperture
Interior, while having on the outside of bit head 2 with aperture internal surface and centainly rubbing, in the present embodiment, three spiral shape water pipes are set
Slot 5 and the outer lateral extent of bit head 2 farther out, play protection to the water pipe 7 in spiral shape water pipe ditch 5 and spiral shape water pipe ditch 5 and make
With.)
Embodiment 3
Pivoting support processing certainly cooling drill bit, the substantially same embodiment of structure with reference to Fig. 1 and Fig. 2, in the present embodiment
2, further: the opening at 5 top of spiral shape water pipe ditch is sealed by the sealing strip 6 of rubber material.
In the present embodiment, the opening at 5 top of spiral shape water pipe ditch is sealed by sealing strip 6, produce water pipe 7 will not
Raw scrap cuts damage, and avoids water pipe 7 from being thrown out of in high speed rotation and come.
Embodiment 4
Pivoting support processing certainly cooling drill bit, the substantially same embodiment of structure with reference to Fig. 1 and Fig. 2, in the present embodiment
3, further: the front-end configuration of bit head 2 has several blades 4, and when bit head 2 is placed vertically, (bit head 2 is vertical
State when being drilled downwards), spiral shape water pipe ditch 5 embeds the location of front end of water inlet pipe 7 higher than all blades 4
Upper end.
When bit bore, 2 front end of bit head is in the condition of high temperature, is arranged in the present embodiment when bit head 2 is placed vertically,
Spiral shape water pipe ditch 5 embeds the upper end that the location of front end of water inlet pipe 7 is higher than all blades 4, i.e. bit head 2 works normally
When, the end that water pipe 7 sprays cooling water does not reach 4 upper end of blade region below, to avoid around blade 4 and blade 4
Localized high temperature regions damage the calcination of water pipe 7, improve the service life of water pipe 7.
Embodiment 5
With reference to the pivoting support processing in Fig. 1 and Fig. 2 the present embodiment with from cooling drill bit, structure substantially with embodiment 4,
Further: the direction of the sectional area of spiral shape water pipe ditch 5 to 2 front end of bit head is cumulative at 7 front end of water pipe.
In the present embodiment, the direction of the sectional area of spiral shape water pipe ditch 5 to 2 front end of bit head is cumulative at 7 front end of water pipe, makes
It obtains cooling water to spray after the outflow of 7 end of water pipe along 5 end of spiral shape water pipe ditch of aperture flaring, so that cooling water is more
Being sprayed on blade 4 to be cooled for dispersion, is conducive to the cooling of drill bit.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (1)
1. a kind of pivoting support processing is with certainly cooling drill bit, drill shank (1) and bit head (2) including integral type, the drill bit
Spiral shape chip space (3) are offered in portion (2) peripheral surface, it is characterised in that:
A spiral shape water pipe ditch (5) is offered in the peripheral surface of spiral shape chip space (3) bottom in bit head (2)；
It is located in the peripheral surface in the middle part of (3) two inner sidewalls of spiral shape chip space in bit head (2) and offers a spiral shell respectively
It revolves shape water pipe ditch (5)；Every spiral shape water pipe ditch (5) has been embedded in water pipe (7)；
Opening at the top of the spiral shape water pipe ditch (5) is sealed by sealing strip (6)；
The front-end configuration of the bit head (2) has several blades (4)；When bit head (2) is placed vertically, the spiral shape water
Tube seat (5) embeds the upper end that the location of the front end of water inlet pipe (7) is higher than all blades (4)；
The direction of sectional area to bit head (2) front end of spiral shape water pipe ditch (5) is cumulative at water pipe (7) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501641.5U CN209477373U (en) | 2018-09-12 | 2018-09-12 | A kind of certainly cooling drill bit of pivoting support processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501641.5U CN209477373U (en) | 2018-09-12 | 2018-09-12 | A kind of certainly cooling drill bit of pivoting support processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209477373U true CN209477373U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501641.5U Active CN209477373U (en) | 2018-09-12 | 2018-09-12 | A kind of certainly cooling drill bit of pivoting support processing |
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| Country | Link |
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| CN (1) | CN209477373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483030A (en) * | 2020-10-23 | 2021-03-12 | 重庆宏工工程机械股份有限公司 | Core drill cylinder convenient to cool and machining method thereof |
-
2018
- 2018-09-12 CN CN201821501641.5U patent/CN209477373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483030A (en) * | 2020-10-23 | 2021-03-12 | 重庆宏工工程机械股份有限公司 | Core drill cylinder convenient to cool and machining method thereof |
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