CN204082144U - The wear-resistant cutting pick of a kind of development machine - Google Patents
The wear-resistant cutting pick of a kind of development machine Download PDFInfo
- Publication number
- CN204082144U CN204082144U CN201420525184.9U CN201420525184U CN204082144U CN 204082144 U CN204082144 U CN 204082144U CN 201420525184 U CN201420525184 U CN 201420525184U CN 204082144 U CN204082144 U CN 204082144U
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- head
- cutting pick
- hard alloy
- blind hole
- pick
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Abstract
The utility model relates to cutting head of roadheader component technology field, it discloses the wear-resistant cutting pick of a kind of development machine, comprise cutting pick handle, tooth shoulder, cutting pick head and hard alloy head, described cutting pick head and described tooth are takeed on, cutting pick handle is set to one, it is characterized in that, the center, front end of described cutting pick head is provided with the blind hole suitable with described hard alloy head, described hard alloy head is located in described blind hole, described hard alloy head is positioned at the outer one end of described blind hole and is provided with one deck diamond layer, and it is rectangular pyramid shape that described hard alloy head is positioned at the outer one end of described blind hole; If described cutting pick head top is arranged with individual reinforcement tooth.The utility model is provided with reinforcement tooth in cutting pick head upper end, and hard alloy head is connected more fastening with cutting pick head, bottom is provided with reinforcing rib, enhances the intensity of cutting pick, and improve the toughness of cutting pick, abrasion resistance is good.
Description
Technical field
The utility model relates to cutting head of roadheader component technology field, refers more particularly to the wear-resistant cutting pick of a kind of development machine.
Background technology
Development machine is for cutting the rock in mine or down-hole.Above driving machine travel unit, the front of panoramic table is hinged with cutting units, motor, reductor, telescopic arm and cutterhead that cutting units has order to be connected, and cutterhead is similar to semielliptical shape, and cut women's head-ornaments are half ellipsoidal surface shapes.The half ellipsoidal surface of cutterhead has by the uniform pick box of multiple tracks helix, pick box is embedded with pick.Pick box has cylindricality pick pedestal, and there is the joint face matched with the half ellipsoidal surface of cutterhead the lower end of pick pedestal, and pick pedestal has can the circular hole of embedding pick.During use, the motor via reducer of cutting part of heading machine and telescopic arm drive cutterhead are tight against and rotate on rock, and pick can get off Rock cutting.When cutterhead circumgyration incision rock, pick and pick pedestal all will be subject to more seriously wearing and tearing, and the pick of wearing and tearing can be taken off from pick box, pick box is installed new pick after pick wearing and tearing.
Chinese patent 201410236634.7 discloses a kind of coal-winning machine buffer-type welding pick-shaped cutter, and it comprises denticle, is characterized in that there is blind hole at center, denticle front end, has protective sleeve in blind hole.All there is annular groove the corresponding position of protective sleeve cylindrical and blind hole inner circle, useful circlip in annular groove.Be short in protective sleeve between outer end and have spring, cushion block and carbide bit successively, carbide bit outer end is approximate cone-shape and stretches out outside protective sleeve outer end.The spring that this pick-shaped cutter is arranged, the stress that when can avoid work, carbide bit is undue is concentrated, and avoids cutter head and bursts apart, be applicable on the coal-winning machine in colliery.But the spring of this invention in protective sleeve is easily out of shape in use; carbide bit easily inwardly shrinks, and cause pick normally to work, application life is short; and the pick requirement of strength of development machine is higher than coal-winning machine, therefore this invention not being suitable on development machine.
Chinese patent 201420205345.6 discloses the wear-resistant pick in a kind of colliery, and it is that alloy head, pick body, tooth shoulder and the tooth handle arranged by tooth head, tooth crown end is formed.Described alloy head is circular arc, one deck wearing layer is covered with outside described alloy head, described wearing layer material is diamond hard alloy, and described alloy head and described tooth head are structure as a whole, and described alloy head external surface is provided with screw thread projection, two connecting axles are provided with in described tooth head, described connecting axle is connected and fixed by bolt and described pick body, and described tooth is takeed on one end and connected described pick body, and the other end connects described tooth handle, described tooth handle is provided with one section of groove, is provided with collar outside described groove.This utility model connects fastening solid, can bear uniform impact force, good heat dissipation effect, and abrasion resistance is high and size that is cutting is even.But this use Novel toothed head and pick body adopt two connecting axles to be connected, at cutting part of heading machine high-speed motion, the low easy fracture of connecting axle intensity, causes pick short for application life, and this utility model is not also suitable for development machine.
Utility model content
The purpose of this utility model is to provide a kind of development machine wear-resistant cutting pick, and intensity is high, long service life, and abrasion resistance is good.
For achieving the above object, the utility model is by the following technical solutions:
The wear-resistant cutting pick of a kind of development machine, comprise cutting pick handle, tooth shoulder, cutting pick head and hard alloy head, described cutting pick head and described tooth are takeed on, cutting pick handle is set to one, the center, front end of described cutting pick head is provided with the blind hole suitable with described hard alloy head, described hard alloy head is located in described blind hole, described hard alloy head is positioned at the outer one end of described blind hole and is provided with one deck diamond layer, and it is rectangular pyramid shape that described hard alloy head is positioned at the outer one end of described blind hole; If described cutting pick head top peripheral is arranged with individual bar shaped strengthen tooth.
Preferably, described blind hole internal layer is provided with one deck hard alloy layer, and described hard alloy head and described cutting pick head adopt interference fit.In blind hole, be provided with one deck hard alloy layer, adopt interference fit method cutting pick head and carbide alloy head material to be linked together, coefficient of thermal expansion is identical, connects closely, hard alloy head difficult drop-off, long service life.
Preferably, the periphery of described cutting pick head bottom is evenly equipped with several reinforcing ribs, and described reinforcing rib and described cutting pick head are integrated design.Strengthen the intensity of cutting pick head.
Preferably, described reinforcement tooth and described cutting pick head are integrated design, and the number of described reinforcement tooth is 6-8.
Preferably, the number of described reinforcing rib is 6-8.
Preferred, be provided with one deck hard alloy layer outside described cutting pick head.Increase the intensity of pick, improve the abrasion resistance of pick, improve the application life of pick.
The beneficial effects of the utility model:
The utility model hard alloy head and cutting pick head adopt interference fit to be connected, and are provided with one deck hard alloy layer in blind hole, because hard alloy head is identical with hard alloy layer coefficient of thermal expansion, connect closely, hard alloy head difficult drop-off, abrasion resistance is good, long service life; The utility model is also provided with reinforcement tooth in cutting pick head upper end, and hard alloy head is connected more fastening with cutting pick head, bottom is provided with reinforcing rib, enhances the intensity of cutting pick, improves the toughness of cutting pick.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model cutting pick;
Fig. 2 is the axonometric drawing of the utility model cutting pick;
In figure, 1-cutting pick head, 2-tooth is takeed on, 3-cutting pick handle, 4-hard alloy head, 5-strengthen tooth, 6-reinforcing rib, 7-blind hole, 8-diamond layer, 9-hard alloy layer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further described in detail.
As shown in Figure 1 and Figure 2, the wear-resistant cutting pick of a kind of development machine, comprise cutting pick handle 3, tooth shoulder 2, cutting pick head 1 and hard alloy head 4, cutting pick head 1 and tooth take ons 2, cutting pick handle 3 is set to integrally, the center, front end of cutting pick head 1 is provided with the blind hole 7 suitable with hard alloy head 4, hard alloy head 4 is located in blind hole 7, and hard alloy head 4 is positioned at the outer one end of blind hole 7 and is provided with one deck diamond layer 8, and it is rectangular pyramid shape that hard alloy head 4 is positioned at the outer one end of blind hole 7; Cutting pick head 1 top is arranged with 6-8 bar shapeds and strengthens tooth 5, and the present embodiment development machine is strengthened tooth 5 with wear-resistant cutting pick and is set to 6, strengthens tooth 5 and is integrated design with cutting pick head 1.
In the present embodiment, blind hole 7 internal layer is provided with one deck hard alloy layer 9, and hard alloy head 4 and cutting pick head 1 adopt interference fit.In blind hole 7, be provided with one deck hard alloy layer 9, adopt interference fit method cutting pick head 1 and hard alloy head 4 material to be linked together, coefficient of thermal expansion is identical, connects closely, hard alloy head difficult drop-off, long service life.
In the present embodiment, the periphery of cutting pick head 1 bottom is evenly equipped with 6-8 reinforcing ribs 6, is preferably 6, and reinforcing rib 6 and cutting pick head 1 are integrated design.Strengthen the intensity of cutting pick head 1.
In the present embodiment, outside cutting pick head 1, be provided with one deck hard alloy layer 9.Increase the intensity of pick, improve the application life of pick.
It should be noted last that, above detailed description of the invention is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. the wear-resistant cutting pick of development machine, comprise cutting pick handle, tooth shoulder, cutting pick head and hard alloy head, described cutting pick head and described tooth are takeed on, cutting pick handle is set to one, it is characterized in that, the center, front end of described cutting pick head is provided with the blind hole suitable with described hard alloy head, described hard alloy head is located in described blind hole, and described hard alloy head is positioned at the outer one end of described blind hole and is provided with one deck diamond layer, and it is rectangular pyramid shape that described hard alloy head is positioned at the outer one end of described blind hole; If described cutting pick head top peripheral is arranged with individual bar shaped strengthen tooth.
2. the wear-resistant cutting pick of development machine according to claim 1, is characterized in that, described blind hole internal layer is provided with one deck hard alloy layer, and described hard alloy head and described cutting pick head adopt interference fit.
3. the wear-resistant cutting pick of development machine according to claim 1, is characterized in that, the periphery of described cutting pick head bottom is evenly equipped with several reinforcing ribs, and described reinforcing rib and described cutting pick head are integrated design.
4. the wear-resistant cutting pick of development machine according to claim 1, is characterized in that, described reinforcement tooth and described cutting pick head are integrated design, and the number of described reinforcement tooth is 6-8.
5. the wear-resistant cutting pick of development machine according to claim 3, is characterized in that, the number of described reinforcing rib is 6-8.
6. the wear-resistant cutting pick of development machine according to claim 1, is characterized in that, be provided with one deck hard alloy layer outside described cutting pick head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525184.9U CN204082144U (en) | 2014-09-13 | 2014-09-13 | The wear-resistant cutting pick of a kind of development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525184.9U CN204082144U (en) | 2014-09-13 | 2014-09-13 | The wear-resistant cutting pick of a kind of development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082144U true CN204082144U (en) | 2015-01-07 |
Family
ID=52174875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420525184.9U Expired - Fee Related CN204082144U (en) | 2014-09-13 | 2014-09-13 | The wear-resistant cutting pick of a kind of development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD920401S1 (en) | 2018-11-15 | 2021-05-25 | Caterpillar Inc. | Cutting tool |
| US11098584B2 (en) | 2018-11-15 | 2021-08-24 | Caterpillar Inc. | Carbide cutter bit with ribbed sides and conical tip |
-
2014
- 2014-09-13 CN CN201420525184.9U patent/CN204082144U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD920401S1 (en) | 2018-11-15 | 2021-05-25 | Caterpillar Inc. | Cutting tool |
| US11098584B2 (en) | 2018-11-15 | 2021-08-24 | Caterpillar Inc. | Carbide cutter bit with ribbed sides and conical tip |
| USD938999S1 (en) | 2018-11-15 | 2021-12-21 | Caterpillar Inc. | Cutting tool holder |
| USD963718S1 (en) | 2018-11-15 | 2022-09-13 | Caterpillar Inc. | Cutting tool |
| US11746507B2 (en) | 2018-11-15 | 2023-09-05 | Caterpillar Inc. | Carbide cutter bit with ribbed sides and conical tip |
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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: 20150107 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |