CN102287187A - Mineral cutting pick of cutting machine - Google Patents
Mineral cutting pick of cutting machine Download PDFInfo
- Publication number
- CN102287187A CN102287187A CN2010102082614A CN201010208261A CN102287187A CN 102287187 A CN102287187 A CN 102287187A CN 2010102082614 A CN2010102082614 A CN 2010102082614A CN 201010208261 A CN201010208261 A CN 201010208261A CN 102287187 A CN102287187 A CN 102287187A
- Authority
- CN
- China
- Prior art keywords
- pick
- blind hole
- head
- cutting
- abaculus
- 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.)
- Pending
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 15
- 239000011707 mineral Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 238000005476 soldering Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract 2
- 239000011324 bead Substances 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 11
- 239000003245 coal Substances 0.000 description 4
- 208000025599 Heat Stress disease Diseases 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention discloses a shearing type mineral cutting pick (1) of a cutting machine made of forged steel. The cutting pick comprises a rectangular handle (2), an assembling circular bead (3) and an integral head (4). The shearing type mineral cutting pick of the cutting machine is characterized in that a plurality of blinding holes (9) are drilled into the front end surface (5) of the head (4), a tungsten carbide embedded block is arranged and fixed in each blind hole, and the front end of each embedded block extends to go beyond the end surface of the head.
Description
Technical field
The present invention be more particularly directed to especially a kind of but not exclusively be used for the mineral cutting machine pick of mineral mining.
Background technology
Traditional shearing-type mineral cutting machine pick is compared with the pick type generally to be forged to make by steel and is formed, and comprises the handle of square-section, and pick is latched in the rectangle receiving opening of cutting pick box (also being known as tool seat or tool stand) releasedly thus; Pick has the assembly stand shoulder, and the head of pick stretches out from cutting pick box like this.And traditionally, head has recess so that roughly L shaped pedestal to be provided at its front end, and the hard material that is generally tungsten carbide is soldered in this pedestal, and the width of crown approaches the width of pick head at least, so that can cut out the gap that is used for head.In the cutting machine of the mine coal of longwell or potash etc. be called cutting-cylinder around use about 50-80 this pick, and these picks have used many decades.
During use, the crown of cutting machine pick can owing to carelessness or careless and with the push rod collision of top-supported, and/or because cutting-cylinder departs from the slit of coal etc. because of carelessness enters firmly and be damaged in the mineral.In this type of incident, the damage of hard-metal insert often takes place or come off, this causes the steel of pick head to wear and tear too early.Except occurring the mechanical failure, the required energy of mineral cutting causes not only temperature rising but also temperature rising in adjacent steel in the carbide alloy crown, particularly when relating to hard cutting, cause in the tungsten carbide crown, taking place heat fatigue and finally cracked.
Under mining condition, the carbide alloy crown lost efficacy in whole or in part or damaged the art technology people is not conspicuous.
Summary of the invention
Goal of the invention
Basic purpose of the present invention provides a kind of improved mineral cutting machine pick.
Summary of the invention
According to the present invention, a kind of shearing-type mineral cutting machine pick of being made by forged steel is provided, described pick comprises rectangular shank, assembling shoulder and whole head, it is characterized in that:
(i) a plurality of blind holes pierce in the front end face of head and
(ii) the tungsten carbide abaculus is placed and is fixed in each blind hole, and wherein the front end of each abaculus extends beyond the end face of head.
Advantage of the present invention
The carbide alloy crown bigger with monolithic is set on the machine pedestal compared, a plurality of less carbide alloy abaculus are set on the front end of shearing-type pick or end face at first to have and compares less, tungsten carbide district independently with related mineral (for example coal), compare with carbide alloy crown traditional, that monolithic is bigger thus and produce less heat, simultaneously the steel around the head is owing to fretting wear produces heat, and this can be to self not producing such as the adverse effect that has been found that generation heat fatigue on the big carbide alloy crown of the pick of prior art yet.
Another advantage is, if owing to impacting and/or heat fatigue comes off the whole crown of crown of traditional monodentate point pick or part crown to lose efficacy, can avoid consequent effective cutting forfeiture and to changing the needs of pick according to pick of the present invention, reason is: very possible is, not every abaculus lost efficacy simultaneously or damaged, thereby make remaining abaculus can keep cutting usefulness, avoid changing the emergency (comprise and avoid reducing productivity) of pick.Preferred or optional feature
Two blind holes are arranged in the front end face of head.
Three blind holes are provided with at interval with 120 °.
Four blind holes are provided with at interval with 90 °.
Blind hole is parallel.
Blind hole is uneven.
Blind hole has same diameter.
Blind hole not all has same diameter.
Blind hole all has equal length.
Blind hole not all has equal length.
The carbide alloy abaculus is fixed by soldering.
The carbide alloy abaculus is fixed to sucking fit.
The carbide alloy of different stage is used for the abaculus of different blind holes.
Description of drawings
An example according to mineral cutting machine pick of the present invention shown in the drawings, in the accompanying drawing:
Fig. 1 is the phantom drawing of pick;
Fig. 2 is the front elevation drawing of pick shown in Figure 1;
Fig. 3 is the sectional view along line P-P shown in Figure 2; With
Fig. 4 is a lateral view shown in Figure 3.
The specific embodiment
In the drawings, shearing-type mineral cutting machine pick 1 is made by forged steel, and comprises rectangular shank 2, assembling shoulder 3 and the whole enlarged head of making 4, and this head 4 has front end face 5.The root 6 of pick 1 has the perforate 7 of a part that is used to admit the spray nozzle (not shown), handle 2 has two apertures 8 simultaneously, described aperture 8 crosses one another and is the perforate of " 8 " shape with formation, is used for admitting the blocking device of being made by synthetic plastic with ribbing that is widely used in coal mining industry.
As can be seen from Figure 3, four blind holes 9 have pierced in the front end face 5.Simultaneously, four holes 9 are parallel with respect to the plane 10 of Fig. 2 all, can be as seen from Figure 3, in cross section, in every pair of hole 9 at head 4 every side places with about 15 ° angular dispersed.
Tungsten carbide abaculus 11 is mounted in each hole, and the diameter and the length of the diameter of this tungsten carbide abaculus and length and each blind hole 9 adapt, and wherein each abaculus 11 is fixed in known manner by soldering.
Claims (13)
1. shearing-type mineral cutting machine pick of being made by forged steel, described pick comprise rectangular shank, assembling shoulder and whole head, it is characterized in that:
(i) a plurality of blind holes pierce in the front end face of head; With
(ii) the tungsten carbide abaculus is placed and is fixed in each blind hole.
2. pick as claimed in claim 1, wherein two blind holes are set in the front end face of head.
3. pick as claimed in claim 1, wherein three blind holes are provided with at interval with 120 °.
4. pick as claimed in claim 1, wherein four blind holes are provided with at interval with 90 °.
5. each described pick in the claim as described above, wherein said blind hole is parallel.
6. as each described pick among the claim 1-4, wherein said blind hole is uneven.
7. each described pick in the claim as described above, wherein said blind hole has same diameter.
8. as each described pick among the claim 1-6, wherein said blind hole not all has same diameter.
9. each described pick in the claim as described above, wherein said blind hole all has equal length.
10. as each described pick among the claim 1-8, wherein said blind hole not all has equal length.
11. each described pick in the claim as described above, wherein the carbide alloy abaculus is fixed by soldering.
12. as each described pick among the claim 1-10, wherein the carbide alloy abaculus is fixed to sucking fit.
13. each described pick in the claim as described above, wherein the carbide alloy of different stage is used for the abaculus of different blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102082614A CN102287187A (en) | 2010-06-18 | 2010-06-18 | Mineral cutting pick of cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102082614A CN102287187A (en) | 2010-06-18 | 2010-06-18 | Mineral cutting pick of cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287187A true CN102287187A (en) | 2011-12-21 |
Family
ID=45333910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102082614A Pending CN102287187A (en) | 2010-06-18 | 2010-06-18 | Mineral cutting pick of cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712336A (en) * | 2015-03-26 | 2015-06-17 | 河南四方达超硬材料股份有限公司 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261619A (en) * | 1979-02-03 | 1981-04-14 | Hall & Pickles Limited | Cutter picks |
| FR2605676B1 (en) * | 1986-10-24 | 1993-06-18 | Combustibles Nucleaires Ste In | ULTRADORING ABRASIVE TOOL FOR EXCAVATING HEAD AND METHOD FOR MANUFACTURING SUCH A TOOL |
| CN101418686A (en) * | 2008-12-09 | 2009-04-29 | 杨晓军 | A kind of coal mining and engineering pick |
-
2010
- 2010-06-18 CN CN2010102082614A patent/CN102287187A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261619A (en) * | 1979-02-03 | 1981-04-14 | Hall & Pickles Limited | Cutter picks |
| FR2605676B1 (en) * | 1986-10-24 | 1993-06-18 | Combustibles Nucleaires Ste In | ULTRADORING ABRASIVE TOOL FOR EXCAVATING HEAD AND METHOD FOR MANUFACTURING SUCH A TOOL |
| CN101418686A (en) * | 2008-12-09 | 2009-04-29 | 杨晓军 | A kind of coal mining and engineering pick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712336A (en) * | 2015-03-26 | 2015-06-17 | 河南四方达超硬材料股份有限公司 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Rosser Le M Applicant after: Ai Skou Haidara (UK) Ltd Address before: Rosser Le M Applicant before: Hedra Mining Tools International Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEDRA MINING TOOLS INTERNATIONAL LTD. TO: HESCO HYDRA (UK) CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |