CN202560225U - Cutting tooth holder with clamping groove - Google Patents
Cutting tooth holder with clamping groove Download PDFInfo
- Publication number
- CN202560225U CN202560225U CN2012202138328U CN201220213832U CN202560225U CN 202560225 U CN202560225 U CN 202560225U CN 2012202138328 U CN2012202138328 U CN 2012202138328U CN 201220213832 U CN201220213832 U CN 201220213832U CN 202560225 U CN202560225 U CN 202560225U
- Authority
- CN
- China
- Prior art keywords
- tooth holder
- cutting
- pick
- clamping groove
- cutting teeth
- 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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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model relates to a cutting tooth holder with a clamping groove, and provides an improved tooth holder type. The cutting tooth holder is provided with a cutting teeth installation hole. The cutting tooth holder is characterized in that at least one clamping groove which is a concave groove is evenly arranged on the periphery of the installation hole of the tooth holder, a latch is required to be maken on a handle portion of cutting teeth corresponding to the clamping groove, and the latch arranged inside the clamping groove can fix the cutting teeth and prevent rotation of the cutting teeth. The clamping groove is added to a position of the installation hole of the cutting tooth holder which has two using states, on one hand, the cutting tooth holder can be used by being matched with traditional cutting teeth, and the cutting teeth can rotate freely. On the other hand, the cutting tooth holder can be used by being matched with special cutting teeth, a latch protuberance is designed on the special cutting teeth, the clamping groove on the position of the installation hole of the cutting tooth holder plays a key role of increasing shear strength of the handle portion of the cutting teeth and avoiding the phenomenon that the cutting teeth are snipped.
Description
Technical field
The utility model relates to a kind of and pick to matching used toothholder, is a kind of pick toothholder that is applied to rotary drilling rig or coal-winning machine or development machine specifically.
Background technology
At present; Be widely used in rotary drilling rig drill bit or coal mining machine roller or cutting head of roadheader; The shank of pick 1 is cylindrical, and sleeve jump ring 2 is housed, and pick 1 is pressed into the mode that tightens naturally behind the toothholder 3 through shank sleeve jump ring 2 and is connected with toothholder; Pick 1 can rotate in toothholder, and is as shown in Figure 3.The problem of following several respects in use appears existing in this drilling tool easily in structure: the one, in the rig or the coal machine course of work; Earth rock sand in the working lining can be clamp-oned in the space between pick and the toothholder; Make pick stuck in toothholder; The eccentric wear phenomenon appears in the pick head to be ground off fast, makes too early from pick, the coming off and lost efficacy of alloy; Another kind is that pick runs into hard rock and fierce impact can occur in working angles, and the pick shank is cut off in toothholder, loses cutting capacity and loses efficacy.
The utility model content
The technical assignment of the utility model is that the deficiency that is directed against above-mentioned prior art provides with a kind of pick toothholder, through improving the form of structure of toothholder, reaches and improves the pick purpose in application life.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of pick toothholder with draw-in groove, have the pick installing hole in the said toothholder, and it is characterized in that; Installing hole periphery at said toothholder evenly is provided with at least one draw-in groove; Said draw-in groove is a groove, and the shank of corresponding pick need be made a latch with it, and the latch card is provided with in the draw-in groove; Can prevent the rotation of pick at fixing pick.
The cross sectional shape of said draw-in groove is V-arrangement or U-shaped.
The utlity model has following outstanding effect: increase draw-in groove at pick toothholder installing hole place; This toothholder has two kinds of user modes: the one, be used with original traditional common pick; Pick is free to rotate, and the 2nd, be used latch projection of design on special-purpose pick with special-purpose pick; The draw-in groove at toothholder installing hole place plays the shear strength of the effect increase pick shank of key, and the phenomenon of avoiding pick to be cut off takes place.
Description of drawings
Fig. 1 is A-A sectional view of Fig. 2;
Fig. 2 is the front view of the utility model;
Fig. 3 is the fit system of common pick and toothholder;
Among the figure: 1 pick, 2 sleeve jump rings, 3 toothholders,
3 toothholders, 31 pick installing holes, 32 draw-in grooves.
The specific embodiment
Like Fig. 1, shown in Figure 2, a kind of pick toothholder with draw-in groove has pick installing hole 31 on this toothholder 3, has fixedly pick sleeve jump ring installation portion in axial sliding in the installing hole 31, and these are existing technology, no longer tired stating.Innovative point is, is evenly to be provided with a pair of draw-in groove 32 at the installing hole periphery of this toothholder 3, and as shown in Figure 1, this draw-in groove 32 is a groove, and the cross sectional shape of draw-in groove is V-arrangement or U-shaped, also can be other shape.The shank of corresponding with it pick need be made a latch, and the latch card is provided with in the draw-in groove, can prevent the rotation of pick at fixing pick.If in producing overload situations takes place, the latch on the pick can at first rupture, the safety of protection pick, and can work on.
The utility model is particularly useful for pick application with teeth.
When pick was traditional pick, because the pick position does not have latch, pick can freely rotate, and uses so the utility model can be used as a common pick box.Be that the utility model still is applicable to original technical pick assembling.
Except that the described technical characterictic of manual, be the known technology of those skilled in the art.
Claims (2)
1. the pick toothholder with draw-in groove has the pick installing hole in the said toothholder, it is characterized in that, evenly is provided with at least one draw-in groove at the installing hole periphery of said toothholder, and said draw-in groove is a groove.
2. a kind of pick toothholder with draw-in groove according to claim 1 is characterized in that the cross sectional shape of said draw-in groove is V-arrangement or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202138328U CN202560225U (en) | 2012-05-11 | 2012-05-11 | Cutting tooth holder with clamping groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202138328U CN202560225U (en) | 2012-05-11 | 2012-05-11 | Cutting tooth holder with clamping groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560225U true CN202560225U (en) | 2012-11-28 |
Family
ID=47209890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202138328U Expired - Fee Related CN202560225U (en) | 2012-05-11 | 2012-05-11 | Cutting tooth holder with clamping groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560225U (en) |
-
2012
- 2012-05-11 CN CN2012202138328U patent/CN202560225U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180511 |