CN205977215U - Coal mining pick - Google Patents
Coal mining pick Download PDFInfo
- Publication number
- CN205977215U CN205977215U CN201620690207.0U CN201620690207U CN205977215U CN 205977215 U CN205977215 U CN 205977215U CN 201620690207 U CN201620690207 U CN 201620690207U CN 205977215 U CN205977215 U CN 205977215U
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- CN
- China
- Prior art keywords
- tooth head
- pick
- connector
- circular cone
- head
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a coal mining pick, including tooth head and tooth handle, the two fixed connection or integrated into one piece, the tooth head includes alloy head and tooth head body, tooth head body includes first connector, circular cone stage body, second connector and cylinder, the cone angle of circular cone stage body is 6~10, the axial length of tooth head is 115~135mm, the minimum diameter of tooth head body is 24~30mm, the circular cone stage body be provided with 3~8 bellied strengthening ribs on the surface. The utility model discloses a pick can effectively improve the blocking rate and the bold rate of coal mining.
Description
Technical field
This utility model is related to a kind of pick, in particular for the pick of coal mining machinery (such as coal-winning machine).
Background technology
The in bulk rate of coal is important quality of production index during coal mining produces.Improve the non-defective unit that in bulk rate can improve coal
Rate, thus improve the economic well-being of workers and staff of coal enterprise.The in bulk rate mined during coal mining and coal winning technology parameter have direct relation,
The technological parameter wherein affecting maximum is cutting-in and digging resistance.Cutting-in is bigger, and in bulk rate is higher, becomes block size bigger；And adopt
Pick resistance is less, and the impact to digging coal seam is less, the easier in bulk of the coal that cut gets off.
Pick is the key job component on mechanical equipment.Taking coal mining as a example, pick is directly contacted with coal seam, is used for
Cut coal seam.The impact of the structure of the pick and quality in bulk rate to mining is very big.With the development of technology, mine
Efficiency has been greatly improved, simultaneously the also more and more higher of the requirement to pick product.At present, do not require nothing more than hob have very high resistance to
Mill performance and longer service life, also require pick to have the in bulk to improve coal mining efficiency and coal for the good digging performance
Rate.
U170 type pick the most frequently used at present, the axial length of its tooth head has two kinds of 90mm, 102mm, and tooth head body is
Minor diameter is 34mm, and cone angle is 15 °.The Chinese patent application of Application No. 201520100798.7 discloses a kind of wear-resisting section
Tooth, it includes alloy head and denticle, and on the head surface of denticle, heap is welded with one layer of wear-resistant coating, and this wear-resistant coating heap is welded in denticle
On the denticle surface of 25～30mm axial length of head.This pick has higher anti-wear performance, long service life, but mines
In bulk rate still awaits improving further.
Therefore, at present in the urgent need to a kind of pick that can significantly improve coal mining in bulk rate.
Utility model content
The purpose of this utility model is to provide a kind of pick, and the coal mining machinery (as coal-winning machine) using this pick can
Significantly improve the in bulk rate of ore deposit.
Pick of the present utility model includes tooth head and tooth handle, is fixedly connected or one between described tooth head and described tooth handle
Molding, described tooth head includes alloy head and tooth head body, and described alloy head is arranged on the front end of described tooth head body；Described tooth head
Body includes the first connector, circular cone stage body, the second connector and cylinder；Described first connector is arranged on described alloy head
And described circular cone stage body between；Described circular cone stage body is connected by the second connector with described cylinder, and the described frustum of a cone
The maximum gauge of body is less than described cylindrical diameter；Described cylinder be arranged on described second connector and described tooth handle it
Between；The cone angle of described circular cone stage body can be 6～10 °, and wherein, described cone angle is two buses of shaft section of circular cone stage body
Angle between extended line；The axial length of described tooth head is 115～135mm, the minimum diameter of described tooth head body is 24～
30mm；3～8 raised reinforcements are provided with the surface of described second connector, described reinforcement extends to described cylinder
The surface of body.
According to pick of the present utility model, it is fixedly connected between described tooth head and described tooth handle or is integrally formed, fixing
The mode connecting is not particularly limited, and can be to weld or threaded.Preferably, between described tooth head and described tooth handle
It is formed in one, so can improve the bulk strength of pick.
According to pick of the present utility model, described tooth head includes alloy head and tooth head body, and described alloy head is arranged on institute
State the front end of tooth head body.According to a kind of embodiment of the present utility model, described alloy head and described tooth head body are using weldering
The mode of connecing connects.Alloy head of the present utility model is not particularly limited, can using known in the art those.This practicality is new
The shape of the alloy head of type is also those conventional using this area, repeats no more here.
According to pick of the present utility model, described tooth head body include the first connector, circular cone stage body, the second connector and
Cylinder.First connector of the present utility model is arranged between described alloy head and described circular cone stage body, for by described conjunction
Golden head is fixed together with described circular cone stage body.Preferably, the structure that the first connector is formed in one with circular cone stage body.Make
For preferred, described first connector is truncated cone shape.Circular cone stage body of the present utility model passes through the second connector with cylinder
Connect, and the maximum gauge of described circular cone stage body is less than described cylindrical diameter.Preferably, circular cone stage body, the second company
Junctor and cylinder are integrally formed.In order to ensure that circular cone stage body and cylinder seamlessly transit, of the present utility model second even
The bus of junctor is round and smooth curve.Such setting can reduce digging resistance, improves the in bulk rate of coal.Of the present utility model
Cylinder is arranged between described second connector and described tooth handle, for described tooth head and tooth handle are fixedly connected on one
Rise.The structure preferably, described tooth head and tooth handle are formed in one.
According to pick of the present utility model, the cone angle of described circular cone stage body is 6～10 °.The cone angle of the present invention is the frustum of a cone
Angle between the extended line of two buses of the shaft section of body.According to this utility model preferred embodiment, the described frustum of a cone
The cone angle of body can be 6～9 °.According to this utility model specific embodiment, the cone angle of described circular cone stage body can for 6 °,
7 °, 8 °, 9 ° or 10 °, more preferably 7 °, 8 ° or 9 °, most preferably 8 °.
According to pick of the present utility model, the axial length of described tooth head is 115～135mm, more preferably 120～
130mm.According to the preferred embodiment of this utility model, the axial length of described tooth head is 115mm, 120mm, 125mm,
130mm or 135mm.
According to pick of the present utility model, the minimum diameter of described tooth head body is 24～30mm.Preferably, described tooth head
The minimum diameter of body can be 25～29mm.According to this utility model preferred embodiment, the minimum of described tooth head body
A diameter of 24mm, 26mm, 28mm or 30mm, more preferably 28mm.
According to pick of the present utility model, the surface of described second connector is provided with 3～8 raised reinforcements,
Described reinforcement extends to described cylindrical surface.Such setting can improve the structural strength of tooth head.Preferably, institute
The front end stating reinforcement is arranged on the surface of described second connector, and the rear end of described reinforcement is arranged on described cylinder
On.It is highly preferred that the front end of described reinforcement extends to the surface of described circular cone stage body.The reinforcement of the present invention can simultaneously with
The surface of described second connector and described periphery are fixed together.Fixing mode can be welding.According to this
A bright specific embodiment, reinforcement, the second connector and cylinder are integrally formed.Preferably, the present invention
Reinforcement is uniformly distributed along the surface of described second connector.The quantity of the reinforcement of the present invention can be odd number or even number, excellent
Elect even number as.The quantity of the reinforcement of the present invention is 4～8, preferably 4～7, more preferably 6.
According to pick of the present utility model it is preferable that the head surface of described tooth head body is coated with wear-resistant coating.Described
The axial length of wear-resistant coating is 18-25mm, preferably 20-22mm, more preferably 20mm.Preferably, described wear-resistant coating is
Ni-based coating, thickness is 1.0～2.0mm, can be obtained using plasma coated.Described wear-resistant coating can effectively improve tooth head
Anti-wear performance, extends the guard time to tooth head, improves the service life of pick；Meanwhile, it is capable of no-spark digging again, make
Coal work is safer, more efficient.
According to pick of the present utility model, tooth head axial length increases and radial dimension reduces, for being further ensured that pick
Overall structural strength is it is preferable that the yield strength of the material of described tooth head body and tooth handle is more than 1080MPa.For example, it is possible to
Select the high-strength alloy structural steel with above-mentioned performance, thus ensureing that pick integrally has enough structural strengths further,
Ensure work when indeformable, do not fracture.
Pick of the present utility model can be repeated no more here with being manufactured using conventional production and processing mode in field.
As a rule, the axial length of tooth head increases, and can increase digging cutting-in, but the structural strength of pick can reduce,
Suffered radial impact force when simultaneously working increases；And reduce the radial dimension of tooth head, digging resistance during coal mining can be reduced, but
Also the structural strength of pick working portion being reduced, thus reducing the impact resistance of pick, reducing its digging performance.Therefore,
Pick is typically only capable to the product using specific model, and can not arbitrarily increase the tooth head axial length of pick, or arbitrarily reduces tooth
Head is partially radially size.In this utility model, using the design of specific tooth head axial length, diameter and angle of taper,
Effectively increase digging cutting-in, decrease contact area when pick is mined, reduce digging resistance, that is, reduce cutting force,
Reduce the impulsive force to digging coal seam for the pick, thus effectively increasing in bulk rate and the boulder yield of mineral (such as coal).With
When, this utility model devises the reinforcement of projection on tooth head, thus effectively strengthening the structural strength of pick, strengthening and cutting
The overall impact resistance of tooth it is ensured that pick is indeformable in mining work, do not fracture, improve pick digging performance and
Service life；Simultaneously as the presence of this reinforcement, the cutting body the cutting down tangential force certain to reinforcement generation, increase
Add the external force of pick rotation, made pick be easier to rotate, decrease the generation of eccentric wear problem.
Brief description
Fig. 1 is the cutting tooth structure schematic diagram of embodiment 1.
Description of reference numerals is as follows：
1- tooth head；2- tooth handle；3- wear-resistant coating；4- reinforcement；5- alloy head；61- first connector；62- circular cone stage body；
63- cylinder；64- second connector.
Specific embodiment
With reference to specific embodiment, this utility model is further described, but protection domain of the present utility model is simultaneously
Not limited to this.
Embodiment 1
Fig. 1 is a kind of overall structure diagram of pick of the present utility model.As shown in figure 1, pick of the present utility model
Including tooth head 1 and tooth handle 2, tooth head 1 includes alloy head 5 and tooth head body, and alloy head 5 is arranged on the front end of tooth head body；Tooth head
Body includes the first connector 61, circular cone stage body 62, cylinder 63 and the second connector 64；First connector 61 is located at alloy head
Between 5 and circular cone stage body 62, it is truncated cone shape；Circular cone stage body 62 is connected by the second connector 64 with cylinder 63, and
And the maximum gauge (that is, the lower circular diameter of circular cone stage body) of circular cone stage body 62 is less than the diameter of cylinder 63；Cylinder 63 sets
Put between the second connector 64 and tooth handle 2；Cone angle (i.e. two buses of the shaft section of circular cone stage body of circular cone stage body 62
Angle between extended line) it is 8 °；The axial length L of tooth head is 135mm, and the minimum diameter of tooth head body is 28mm；Second even
The equally distributed 6 raised reinforcements 4 in surface along the second connector 64 are provided with the surface of junctor 64, reinforcement 4 prolongs
Extend the surface of cylinder 63.The head of tooth head body, i.e. the surface-coated of the front end of the first connector 61 and circular cone stage body 62
There is wear-resistant coating 3, axial length on tooth head body for the wear-resistant coating 3 is 20mm.Wear-resistant coating is Ni-based coating, and thickness is
1.5mm, is obtained using plasma coated.The material of the tooth head body of pick and tooth handle 2 is high-strength alloy structural steel.
Pick product priority using embodiment 1 is tested in collieries such as Wuhai energy company of Shenhua, Yi Tai companies, coal
The more conventional U170 type pick of charcoal in bulk rate improves more than 25%, effect is significant, and pick eccentric wear phenomenon substantially reduces simultaneously.
Embodiment 2
In addition to the cone angle of the circular cone stage body 62 by embodiment 1 changes into 10 ° by 8 °, miscellaneous part and parameter and enforcement
Example 1 is identical.
Pick product using embodiment 2 is tested in Wuhai energy company of Shenhua colliery, compares with embodiment 1, coal
Charcoal in bulk rate and eccentric wear do not have significant change.
Embodiment 3～6
In embodiment 3～6, except by the axial length L of the tooth head of embodiment 1 by 135mm change into respectively 115mm,
Outside 120mm, 125mm, 130mm, miscellaneous part and parameter are same as Example 1.
Pick product using embodiment 3,4,5,6 is tested in Wuhai energy company of Shenhua colliery, coal in bulk rate
More conventional U170 type pick improves more than 20%, and the increase with tooth head axial length, and coal in bulk rate substantially increases, with
When pick eccentric wear phenomenon substantially reduce.
Embodiment 7～8
In embodiment 7～8, except by the quantity of the reinforcement of embodiment 1 by 6 change into respectively 3 and 9 it
Outward, miscellaneous part and parameter are same as Example 1.
Pick product using embodiment 7,8 is first tested in collieries such as Yi Tai companies, and coal in bulk rate is more conventional
U170 type pick improves more than 25%, and pick eccentric wear phenomenon substantially reduces simultaneously.
This utility model is not limited to above-mentioned embodiment, in the case of without departing substantially from flesh and blood of the present utility model,
It may occur to persons skilled in the art that any deformation, improvement, replace each fall within scope of the present utility model.
Claims (10)
1. a kind of pick, including tooth head and tooth handle, is fixedly connected between described tooth head and described tooth handle or is integrally formed, and it is special
Levy and be：
Described tooth head includes alloy head and tooth head body, and described alloy head is arranged on the front end of described tooth head body；
Described tooth head body includes the first connector, circular cone stage body, the second connector and cylinder；Described first connector setting
Between described alloy head and described circular cone stage body；Described circular cone stage body is connected by the second connector with described cylinder, and
And the maximum gauge of described circular cone stage body is less than described cylindrical diameter；Described cylinder be arranged on described second connector with
Between described tooth handle；
The cone angle of described circular cone stage body is 6～10 °, and wherein, described cone angle is prolonging of two buses of shaft section of circular cone stage body
Angle between long line；
The axial length of described tooth head is 115～135mm, and the minimum diameter of described tooth head body is 24～30mm；
3～8 raised reinforcements are provided with the surface of described second connector, described reinforcement extends to described cylinder
Surface.
2. pick according to claim 1 is it is characterised in that the cone angle of described circular cone stage body is 6～9 °.
3. pick according to claim 1 is it is characterised in that the axial length of described tooth head is 120～130mm.
4. pick according to claim 1 it is characterised in that described tooth head axial length be 115mm, 120mm,
125mm, 130mm or 135mm.
5. pick according to claim 1 is it is characterised in that the minimum diameter of described tooth head body is 25～29mm.
6. pick according to claim 1 it is characterised in that described tooth head body minimum diameter be 24mm, 26mm,
28mm or 30mm.
7. pick according to claim 1 is it is characterised in that the front end of described reinforcement is arranged on described second connector
Surface on, the rear end of described reinforcement is arranged on described cylinder.
8. pick according to claim 1 is it is characterised in that described reinforcement is uniform along the surface of described second connector
Distribution.
9. pick according to claim 1 is it is characterised in that the quantity of described reinforcement is 4～7.
10. pick according to claim 1 is it is characterised in that the first described connector is truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620690207.0U CN205977215U (en) | 2016-07-01 | 2016-07-01 | Coal mining pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620690207.0U CN205977215U (en) | 2016-07-01 | 2016-07-01 | Coal mining pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977215U true CN205977215U (en) | 2017-02-22 |
Family
ID=58022691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620690207.0U Expired - Fee Related CN205977215U (en) | 2016-07-01 | 2016-07-01 | Coal mining pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977215U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931058A (en) * | 2019-04-22 | 2019-06-25 | 安徽澳德矿山机械设备科技股份有限公司 | A kind of pick and its processing method of coalcutter |
| CN111364988A (en) * | 2020-03-05 | 2020-07-03 | 山西能源学院 | Detachable cutting tool assembly |
| CN113202418A (en) * | 2021-04-20 | 2021-08-03 | 遵义中铂硬质合金有限责任公司 | Rotary drilling bit cutting pick embedded with hard alloy strips |
-
2016
- 2016-07-01 CN CN201620690207.0U patent/CN205977215U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931058A (en) * | 2019-04-22 | 2019-06-25 | 安徽澳德矿山机械设备科技股份有限公司 | A kind of pick and its processing method of coalcutter |
| CN109931058B (en) * | 2019-04-22 | 2020-04-03 | 安徽澳德矿山机械设备科技股份有限公司 | Cutting pick for coal mining machine and processing method thereof |
| CN111364988A (en) * | 2020-03-05 | 2020-07-03 | 山西能源学院 | Detachable cutting tool assembly |
| CN111364988B (en) * | 2020-03-05 | 2022-07-12 | 山西能源学院 | Detachable cutting tool assembly |
| CN113202418A (en) * | 2021-04-20 | 2021-08-03 | 遵义中铂硬质合金有限责任公司 | Rotary drilling bit cutting pick embedded with hard alloy strips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20180701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |