CN204851252U - Polycrystalline diamond pick body with protect footpath and supplementary cutting power ability - Google Patents
Polycrystalline diamond pick body with protect footpath and supplementary cutting power ability Download PDFInfo
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- CN204851252U CN204851252U CN201520558437.7U CN201520558437U CN204851252U CN 204851252 U CN204851252 U CN 204851252U CN 201520558437 U CN201520558437 U CN 201520558437U CN 204851252 U CN204851252 U CN 204851252U
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Abstract
The utility model discloses a polycrystalline diamond pick body with protect footpath and supplementary cutting power ability, personally experience sth. Part of the body and inlay the polycrystalline diamond pick of establishing at the top of the steel body including the steel, include further still that at least one polycrystalline diamond protects the footpath tooth, this polycrystalline diamond protects the footpath tooth and forms by protecting footpath tooth carbide base member and protecting footpath tooth polycrystalline diamond layer, protects footpath tooth polycrystalline diamond layer and covers on the upper surface of footpath in insurance validity tooth carbide base member, guarantor footpath tooth carbide base member inlays to be established on the circumference lateral wall of the steel body, protect the outside of footpath tooth polycrystalline diamond layer towards the steel body to the circumference lateral wall that outside protrusion was personally experienced sth. Part of the body in the steel. The utility model discloses a brazed many polycrystalline diamond in steel body head border and protected the footpath teeth, played the steel body head effect of protection pick, made steel body head be unlikely to too fast wearing and tearing and cause polycrystalline diamond pick head to drop too early, protected the footpath odontoid and can also have supplementary cutting action for the taper shape through changing polycrystalline diamond to prolong the life of pick greatly.
Description
Technical field
The utility model relates to technical field of superhard material, is specifically related to a kind of polycrystalline diamond cutting tooth body with gauge and assisted machining function.
Background technology
The driving exploitation of traditional coal and mineral and the driving etc. in tunnel are all adopt carbide alloy pick substantially.But in use there is the problems such as not wear-resisting and application life is short in carbide alloy pick.Particularly run into harder rock stratum, it is bad that carbide alloy pick uses a few minutes just to wear and tear, and thus use cost is very high, and efficiency is very low.There is a lot of company at present all at research and development polycrystalline diamond cutting tooth head, the application life of pick is extended greatly, but bring again new problem simultaneously, the steel body abrasion resistance of welding pick is exactly inadequate, in use the rate of wear of steel body head is faster than cutting pick head wearing and tearing, thus causes polycrystalline diamond cutting tooth head to come off too early when not damaging.In order to address this problem many producers take steel body head electroplating surface one deck diamond layer or install carbide alloy bar or glomerocryst additional; but due in pick use procedure; environment is more severe; often there will be the situation of the direct rock cutting of steel body head; in this case, steel body head plating on one deck diamond layer or install carbide alloy bar or glomerocryst additional, due to insufficient strength; damaged by rock impact very soon and lost efficacy, not having good gauge effect.
Utility model content
Technical problem to be solved in the utility model is the steel body head rapid wear of the polycrystalline diamond cutting tooth occurred at present, thus cause polycrystalline diamond cutting tooth head to come off too early when not damaging and the problem such as the life-span is short, a kind of polycrystalline diamond cutting tooth body with gauge and assisted machining function is provided.
For solving the problem, the utility model is achieved through the following technical solutions:
There is a polycrystalline diamond cutting tooth body for gauge and assisted machining function, comprise steel body and the polycrystalline diamond cutting tooth being embedded the top at steel body; Also comprise at least one polycrystalline diamond gauge teeth further; This polycrystalline diamond gauge teeth is made up of gauge teeth hard alloy substrate and gauge teeth polycrystalline diamond layer, and gauge teeth polycrystalline diamond layer covers on the upper surface of gauge teeth hard alloy substrate; Gauge teeth hard alloy substrate is embedded in the circumferential side wall of steel body; Gauge teeth polycrystalline diamond layer is towards the outside of steel body, and outwardly in the circumferential side wall of steel body.
In such scheme, the shape of the upper surface of gauge teeth hard alloy substrate is identical with the upper surface shape of polycrystalline diamond gauge teeth.
In such scheme, the end face of polycrystalline diamond gauge teeth and the upper surface of gauge teeth polycrystalline diamond layer are spheroidal or taper shape.
In such scheme, the polycrystalline diamond gauge teeth be embedded in the circumferential side wall of steel body is multiple, these polycrystalline diamond gauge teeths in the circumferential side wall of steel body, along the same level circumference of steel body to be uniformly distributed in circumference and/or along the same bus of steel body in being longitudinally uniformly distributed.
In such scheme, described polycrystalline diamond cutting tooth is made up of pick carbide matrix and pick polycrystalline diamond layer, and pick polycrystalline diamond layer covers on the upper surface of pick carbide matrix.
In such scheme, the pick polycrystalline diamond layer covered on the upper surface of pick carbide matrix comprises pick polycrystalline diamond parallel layers and/or pick polycrystalline diamond transverse layers.
Compared with prior art; the utility model coordinates polycrystalline diamond cutting tooth head to use; pick body is made up of steel body head and steel body; the border soldering of steel body head has many polycrystalline diamond gauge teeths; play the steel body head effect of protection pick; making steel body head be unlikely to too quick-wearing causes polycrystalline diamond cutting tooth head to come off too early, and be special polycrystalline diamond gauge teeth due to what adopt, its abrasion resistance and impact resistance are all eager to excel much compared with electroplated diamond layer and simple glomerocryst.In addition, polycrystalline diamond gauge teeth, except having protection steel body camera function, also can have assisted machining effect by changing polycrystalline diamond gauge teeth shape, greatly can extend the application life of pick like this.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the polycrystalline diamond cutting tooth of gauge function.
Fig. 2 is the structural representation that another kind has the polycrystalline diamond cutting tooth of gauge function.
Number in the figure: 1, steel body; 2, polycrystalline diamond gauge teeth; 2-1, gauge teeth hard alloy substrate; 2-2, gauge teeth polycrystalline diamond layer; 3, polycrystalline diamond cutting tooth; 3-1, pick carbide matrix; 3-2, pick polycrystalline diamond layer.
Detailed description of the invention
There is a polycrystalline diamond cutting tooth body for gauge and assisted machining function, by steel body 1, be embedded the polycrystalline diamond cutting tooth 3 at the top of steel body 1 and the polycrystalline diamond gauge teeth 2 be embedded in the circumferential side wall of steel body 1 forms.
In order to improve the abrasion resistance of steel body 1, the utility model is laid with polycrystalline diamond gauge teeth 2 in the circumferential side wall of steel body 1.Each polycrystalline diamond gauge teeth 2 is made up of gauge teeth hard alloy substrate 2-1 and gauge teeth polycrystalline diamond layer 2-2, and gauge teeth polycrystalline diamond layer 2-2 covers on the upper surface of gauge teeth hard alloy substrate 2-1.The sheet that gauge teeth polycrystalline diamond layer 2-2 is curved and integral thickness are suitable, and namely the shape of the upper surface of gauge teeth hard alloy substrate 2-1 is identical with the upper surface shape of polycrystalline diamond gauge teeth 2.In order to the axial side wall of available protecting steel body 1, the end face of described polycrystalline diamond gauge teeth 2 and the upper surface of gauge teeth polycrystalline diamond layer 2-2 are spheroidal or taper shape.When polycrystalline diamond gauge teeth 2 is the upper surface of spheroidal, as shown in Figure 1, it can be the regular spheroidal surface that one section of circular arc is formed, the irregular spheroidal surface that also can form for multi-section circular arc.Because polycrystalline diamond gauge teeth 2 has the good and high impact resistance of abrasion resistance, can available protecting steel body 1 by Fast Wearing, play the effect extending steel body 1 life-span.When the upper surface of polycrystalline diamond gauge teeth 2 is taper surface, as shown in Figure 2, its top has a hemispheric chamfering, and its belly can be then the straight cambered surface of rule or the cambered surface of evagination.When pick in use, the gauge teeth of its conical surface shape can participate in the cutting to rock directly, plays paving and helps the effect of main polycrystalline diamond cutting tooth 3 rock cuttings, have again the protective effect to steel body 1 simultaneously, greatly improve the application life of pick.
Gauge teeth hard alloy substrate 2-1 is all embedded in the circumferential side wall of steel body 1, and gauge teeth polycrystalline diamond layer 2-2 is then towards the outside of steel body 1, and outwardly in the circumferential side wall of steel body 1.When polycrystalline diamond gauge teeth 2 is multiple, the laying mode of these polycrystalline diamond gauge teeths 2 in the circumferential side wall of steel body 1 can be that circumference is uniformly distributed along the same level circumference of steel body 1, also can along the same bus of steel body 1 in being longitudinally uniformly distributed.Gauge function is provided when considering the major function of polycrystalline diamond gauge teeth 2, in the utility model preferred embodiment, described polycrystalline diamond gauge teeth 2 pays the utmost attention to circumferential laying mode, namely circumferentially lay multiple polycrystalline diamond gauge teeth 2 in the same level of steel body 1, and these polycrystalline diamond gauge teeths 2 to be centrosymmetric setting about the center of this horizontal circumference.Certainly, can circumferentially lay polycrystalline diamond gauge teeth 2 in multiple levels of the circumferential side wall of whole steel body 1, and each level is circumferentially equipped with multiple polycrystalline diamond gauge teeth 2.
Described polycrystalline diamond cutting tooth 3 is identical with the shape of existing pick or similar, and be made up of pick carbide matrix 3-1 and pick polycrystalline diamond layer 3-2, pick polycrystalline diamond layer 3-2 covers on the upper surface of pick carbide matrix 3-1.In order to improve the performance of polycrystalline diamond layer, described pick polycrystalline diamond layer 3-2 is formed by the pick polycrystalline diamond parallel layers be parallel on pick carbide matrix 3-1 upper surface direction and/or the pick polycrystalline diamond transverse layers in a lateral direction that is parallel to horizontal plane.Its combination can be several as follows:
First kind of way is independent parallel layered mode.That is: described pick polycrystalline diamond layer 3-2 is only being parallel on pick carbide matrix 3-1 upper surface direction, and the pick polycrystalline diamond parallel layers gradually changed by least 2 layers of hardness forms.And the hardness distribution mode of these pick polycrystalline diamond parallel layers can increase from inside to outside gradually, also can reduce gradually from inside to outside.
The second way is independent horizontal layered mode.That is: described pick polycrystalline diamond layer 3-2 is only being parallel to horizontal plane in a lateral direction, and the pick polycrystalline diamond transverse layers alternately changed by least 2 layers of hardness forms.From the top of pick, present one deck hard, one deck is soft, and one deck is hard, and one deck is soft.What one deck was soft is alternately distributed mode.
The third mode is combination layered mode.That is: described pick polycrystalline diamond layer 3-2 is not only being parallel on pick carbide matrix 3-1 upper surface direction, and the pick polycrystalline diamond parallel layers gradually changed by least 2 layers of hardness forms; And being parallel to horizontal plane in a lateral direction, the pick polycrystalline diamond transverse layers also alternately changed by least 2 layers of hardness forms.
Claims (6)
1. there is the polycrystalline diamond cutting tooth body of gauge and assisted machining function, comprise steel body (1) and be embedded the polycrystalline diamond cutting tooth (3) at the top of steel body (1); It is characterized in that: also comprise at least one polycrystalline diamond gauge teeth (2) further; This polycrystalline diamond gauge teeth (2) is made up of gauge teeth hard alloy substrate (2-1) and gauge teeth polycrystalline diamond layer (2-2), and gauge teeth polycrystalline diamond layer (2-2) covers on the upper surface of gauge teeth hard alloy substrate (2-1); Gauge teeth hard alloy substrate (2-1) is embedded in the circumferential side wall of steel body (1); Gauge teeth polycrystalline diamond layer (2-2) is towards the outside of steel body (1), and outwardly in the circumferential side wall of steel body (1).
2. the polycrystalline diamond cutting tooth body with gauge and assisted machining function according to claim 1, is characterized in that: the shape of the upper surface of gauge teeth hard alloy substrate (2-1) is identical with the upper surface shape of polycrystalline diamond gauge teeth (2).
3. the polycrystalline diamond cutting tooth body with gauge and assisted machining function according to claim 1 and 2, is characterized in that: the end face of polycrystalline diamond gauge teeth (2) and the upper surface of gauge teeth polycrystalline diamond layer (2-2) are spheroidal or taper shape.
4. the polycrystalline diamond cutting tooth body with gauge and assisted machining function according to claim 1, it is characterized in that: be embedded polycrystalline diamond gauge teeth (2) in the circumferential side wall of steel body (1) for multiple, these polycrystalline diamond gauge teeths (2) in the circumferential side wall of steel body (1), the same level circumference along steel body (1) be circumference be uniformly distributed and/or along the same bus of steel body (1) in being longitudinally uniformly distributed.
5. the polycrystalline diamond cutting tooth body with gauge and assisted machining function according to claim 1, it is characterized in that: described polycrystalline diamond cutting tooth (3) is made up of pick carbide matrix (3-1) and pick polycrystalline diamond layer (3-2), and pick polycrystalline diamond layer (3-2) covers on the upper surface of pick carbide matrix (3-1).
6. the polycrystalline diamond cutting tooth body with gauge and assisted machining function according to claim 5, is characterized in that: the pick polycrystalline diamond layer (3-2) covered on the upper surface of pick carbide matrix (3-1) comprises pick polycrystalline diamond parallel layers and/or pick polycrystalline diamond transverse layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558437.7U CN204851252U (en) | 2015-07-29 | 2015-07-29 | Polycrystalline diamond pick body with protect footpath and supplementary cutting power ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558437.7U CN204851252U (en) | 2015-07-29 | 2015-07-29 | Polycrystalline diamond pick body with protect footpath and supplementary cutting power ability |
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| CN204851252U true CN204851252U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520558437.7U Active CN204851252U (en) | 2015-07-29 | 2015-07-29 | Polycrystalline diamond pick body with protect footpath and supplementary cutting power ability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607983A (en) * | 2018-05-07 | 2018-10-02 | 成都惠灵丰金刚石钻头有限公司 | A kind of abrasion-resistant matrix, preparation method and gauge wear-resistant block |
| CN109322666A (en) * | 2018-12-11 | 2019-02-12 | 吉林大学 | A kind of sandwiched gradient distribution diadust strengthened pick |
| CN112901164A (en) * | 2021-02-01 | 2021-06-04 | 武汉玖石超硬材料有限公司 | High-impact-resistance high-wear-resistance polycrystalline diamond composite cutting tooth and manufacturing method thereof |
-
2015
- 2015-07-29 CN CN201520558437.7U patent/CN204851252U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607983A (en) * | 2018-05-07 | 2018-10-02 | 成都惠灵丰金刚石钻头有限公司 | A kind of abrasion-resistant matrix, preparation method and gauge wear-resistant block |
| CN109322666A (en) * | 2018-12-11 | 2019-02-12 | 吉林大学 | A kind of sandwiched gradient distribution diadust strengthened pick |
| CN112901164A (en) * | 2021-02-01 | 2021-06-04 | 武汉玖石超硬材料有限公司 | High-impact-resistance high-wear-resistance polycrystalline diamond composite cutting tooth and manufacturing method thereof |
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