CN2916131Y - Cutting pick assembly for use in digging mechanism - Google Patents
Cutting pick assembly for use in digging mechanism Download PDFInfo
- Publication number
- CN2916131Y CN2916131Y CN 200620021027 CN200620021027U CN2916131Y CN 2916131 Y CN2916131 Y CN 2916131Y CN 200620021027 CN200620021027 CN 200620021027 CN 200620021027 U CN200620021027 U CN 200620021027U CN 2916131 Y CN2916131 Y CN 2916131Y
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- CN
- China
- Prior art keywords
- pick
- steady pin
- toothholder
- mechinery
- excavating
- 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 relates to a pick component for coal cutter, a development machine and a slicer, which provides a pick of machine connecting structure with no necessary of welding and conglutinating the alloy tool bit and can protect the pick body, a pick stand that preventing the pick from damaging and a fixed pin. The utility model comprises a carbide bit 4, spring steel wire 5, a pick body 1, a pick stand2, and a fixed pin 3; wherein, the carbide bit 4 is fixed inside the pick body 1 by a spring ring made from the spring steel wire with interference fit firmly and reliable; the fixed pin 3 is designed as combination metal, located by a eccentric column or a steel ball and locked with a pick stand groove by internal expansion force. The utility model has the advantages of firmly and reliable performance without becoming flexible and moving along the axis direction, convenient assembly and disassembly and long serving life.
Description
Technical field
The utility model relates to a kind of coal-winning machine, development machine, coal plough cutting bit assembly.
Background technology
Cutting bit assembly has been widely used on the mining machinery of Coal Production, is the critical component in the mining machinery operating mechanism, and it directly acts on the mineral that are broken.Its quality and performance directly have influence on the ability and the operating efficiency of coal production.
Basic demand to cutting bit assembly is: be set in carbide bit on the cutter hub when the coal seam of various coal petrographys of cut and dirt band, can not come off and broken.The mining machinery stressed generation of pick in the course of the work can not cause pick to lose in sharply changing.But at present the cutting bit assembly that uses is all not ideal enough, and the principal mode of its inefficacy has alloy cutter head to come off to lose, fragmentation when the crown tipping is serious, and cutter hub is crooked and fracture, and the pick body is loosening phenomenon such as loses.Factors such as the planform size of its main cause and carbide bit, steady pin and toothholder and processing technology are relevant.
Summary of the invention
The purpose of this utility model provides a kind of need not alloy cutter head welding, bonding, and can protect coal-winning machine, development machine, the coal plough pick of the mechanical connecting structure of pick body.And the pick box and the steady pin assembly that are difficult for making the pick loss.
Above-mentioned purpose is achieved through the following technical solutions.
This cutting bit assembly comprises: assemblies such as pick, toothholder and steady pin.
Pick in the above-mentioned cutting bit assembly is that the moulding carbide bit closely is set in the pick body, and fixes by spring steel wire, and moulding carbide bit and pick body opening are interference fit.
The pick body of above-mentioned cutting bit assembly is with steady pin and steel ball location.Or on toothholder, have two ends, D hole and increased T type annular ditch, with the eccentric cylinder location, lock with inner expanding force and toothholder groove.
This utility model has following beneficial effect:
1. from design point of view, be purpose with the functional reliability that improves pick.Moulding carbide bit in the pick that the utility model provides has unique advantage, has protected the wearing and tearing of pick body.And the head of pick body gives the bearing value of carbide bit maximum when stressed, plays mutual protective effect.The turn made from spring steel wire is fixed on alloy cutter head in the pick body, and interference fit is solid and reliable, has replaced welding procedure, and cost is low.
2. the various different cutting angles of alloy cutter head and eccentric throw have increased intensity, wear-resisting, have reduced the cutting resistance again.Increased the stability of mining machinery, improved the application life of mining machinery, and reduced energy consumption.Coal cutting is block, reduces the coal dust infringement healthy to the staff, reduces the danger of coal-dust explosion.Increased the output of cleaned coal simultaneously.
3. come off in the tapping process for fear of pick, it is box-like that steady pin is designed to metal group, with eccentric cylinder or steel ball location, locks with inner expanding force and toothholder groove.Do not become flexible, do not move axially, solid and reliable, the convenience of removing stage makeup and costume, the life-span is long.
Description of drawings
Accompanying drawing 1 is a mounting structure schematic diagram of the present utility model.
Accompanying drawing 2 is that A type steady pin sectional view is installed in the accompanying drawing 1.
Accompanying drawing 3 is that B, C type steady pin D hole sectional view are installed in the accompanying drawing 1.
Accompanying drawing 4 is Type B steady pin front views.
Accompanying drawing 5 is C type steady pin front views.
1 is the pick body among the figure, and 2 is toothholder, and 3 is steady pin, and 4 is carbide bit, and 5 is spring steel wire, and 6 are internal expanding awl screw, and 7 is spring, and 8 is plug, and 9 is steel ball, and 10 is alignment pin.
The specific embodiment
In a most preferred embodiment of the present utility model, cutting bit assembly (A type), it is by carbide bit 4, spring steel wire 5, pick body 1, toothholder 2, steady pin 3 (A type), internal expanding awl screw 6, spring 7, compositions such as plug 8 and steel ball 9.Special off-centre is that the turn that the carbide bit 4 usefulness spring steel wires of x are made is fixed in the pick body 1, and interference fit is solid and reliable, and eccentric throw has increased intensity simultaneously, and is wear-resisting, reduced the cutting resistance again, plays mutual protective effect.There is through hole at the handle of a knife place of pick body 1, is used for linking to each other with steady pin 3 (A type).And put into steel ball 9 and spring 7 usefulness plugs 8 are fixed from handle of a knife below boring.Pick body 1 is put into the toothholder slotted hole from toothholder 2 tops, pack into from the side with steady pin 3 (A type), at this moment steel ball can guarantee that steady pin do not scurry out.The rotation steady pin because steady pin has off-centre, therefore with pick body and toothholder asphyxia by external pressure on the chest and abdomen, makes it not loosening.
In another most preferred embodiment of the present utility model, cutting bit assembly (Type B), it is to have breach at the handle of a knife place of pick body 1, is used for linking to each other with steady pin 3 (Type B) as shown in Figure 4, has increased T type ring-shaped groove and long keyway as accompanying drawing 3 two ends, D hole in toothholder.Pack into from the side with steady pin 3 (Type B), do not rotate, on steady pin, be equipped with the effect that alignment pin 10 plays key in order to guarantee steady pin.The cylinder that with the tapering off-centre on the steady pin 3 is e cannot not lock looseningly with internal expanding awl screw 6 pick body 1 dieback with steady pin 3 and toothholder groove, do not move axially.
In a most preferred embodiment more of the present utility model, cutting bit assembly (C type), it is to have breach at the handle of a knife place of pick body 1, is used for linking to each other with steady pin 3 (C type) as shown in Figure 5, has increased T type ring-shaped groove as accompanying drawing 3 two ends, D hole in toothholder.Pack into from the side with steady pin 3 (C type), rotation steady pin 3 (C type), and with the off-centre at middle part be the cylinder of e with pick body 1 dieback, with internal expanding awl screw 6 steady pin 3 (C type) and toothholder groove cannot not locked looseningly, do not move axially.The T type circular groove at two ends, toothholder D hole can guarantee that steady pin can use respectively on both direction.
Claims (8)
1, a kind of pick cutting assembly for excavating mechinery, its composition comprises: assemblies such as pick, toothholder and steady pin is characterized in that described pick is is interference fit by special carbide bit and pick body opening; Have circular hole on the described section seat or increased T type circular groove at two ends, D hole; Described steady pin group has eccentric e, and fixes by steel ball or internal expanding awl screw and toothholder.
2, a kind of pick cutting assembly for excavating mechinery according to claim 1 is characterized in that: said pick is that the turn that special eccentric carbide bit is made with spring steel wire is fixed on alloy cutter head on the pick body with interference fit.
3, a kind of pick cutting assembly for excavating mechinery according to claim 2, it is characterized in that: said special eccentric carbide bit be by two coaxial clyinders and disalignment x apart from after form the multiple edge body that another one has the cutting angle, width and pick body are wide, form primary cutting angles; Top and cylinder form back cone angle.
4, a kind of pick cutting assembly for excavating mechinery according to claim 1 is characterized in that: said steady pin group A type has steady pin part and steel ball stop portion.
5, a kind of pick cutting assembly for excavating mechinery according to claim 4, it is characterized in that: said steady pin is partly for the cylinder cam pin, its cylinder cam pin last fluted, and there is interior hexagonal in the left side, there are screw thread and taper hole in the right side, with internal expanding awl screw steady pin and toothholder is locked.
6, a kind of pick cutting assembly for excavating mechinery according to claim 4 is characterized in that: said steel ball stop portion is put into steel ball and spring to fix with plug in pick body lower boreholes, to prevent that fixed pin shaft is to moving.
7, a kind of pick cutting assembly for excavating mechinery according to claim 1, it is characterized in that: said steady pin group Type B is for having breach at the handle of a knife place of pick body, have on toothholder that two ends have increased T type ring-shaped groove and long keyway in the D hole, pack into from the side with steady pin, on steady pin, be equipped with the effect that little alignment pin plays key., steady pin and toothholder groove are locked pick body dieback with the tapering eccentric cylinder on the steady pin with internal expanding awl screw.
8, a kind of pick cutting assembly for excavating mechinery according to claim 1, it is characterized in that: said steady pin group C type is for having breach at the handle of a knife place of pick body, have in toothholder that two ends have increased T type ring-shaped groove in the D hole, pack into from the side with steady pin, the rotation steady pin, and with the eccentric cylinder at middle part with pick body dieback, with internal expanding awl screw steady pin and toothholder groove are locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021027 CN2916131Y (en) | 2006-06-15 | 2006-06-15 | Cutting pick assembly for use in digging mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021027 CN2916131Y (en) | 2006-06-15 | 2006-06-15 | Cutting pick assembly for use in digging mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916131Y true CN2916131Y (en) | 2007-06-27 |
Family
ID=38187040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021027 Expired - Fee Related CN2916131Y (en) | 2006-06-15 | 2006-06-15 | Cutting pick assembly for use in digging mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916131Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615247A (en) * | 2010-12-06 | 2014-03-05 | 李仕清 | Mining machine capable of compound rotary cutting |
| CN105370276A (en) * | 2010-03-18 | 2016-03-02 | 山东天工岩土工程设备有限公司 | Cutting pick, wear and mounting system for mining machine |
-
2006
- 2006-06-15 CN CN 200620021027 patent/CN2916131Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370276A (en) * | 2010-03-18 | 2016-03-02 | 山东天工岩土工程设备有限公司 | Cutting pick, wear and mounting system for mining machine |
| CN103615247A (en) * | 2010-12-06 | 2014-03-05 | 李仕清 | Mining machine capable of compound rotary cutting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |