CN106436804A - Toothholder assembly and cutting tooth assembly - Google Patents
Toothholder assembly and cutting tooth assembly Download PDFInfo
- Publication number
- CN106436804A CN106436804A CN201610908748.0A CN201610908748A CN106436804A CN 106436804 A CN106436804 A CN 106436804A CN 201610908748 A CN201610908748 A CN 201610908748A CN 106436804 A CN106436804 A CN 106436804A
- Authority
- CN
- China
- Prior art keywords
- toothholder
- face
- tooth
- tooth set
- assembly
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2883—Wear elements for buckets or implements in general
Abstract
The invention provides a toothholder assembly and a cutting tooth assembly. The toothholder assembly comprises a toothholder and a tooth sleeve, wherein the toothholder is a sleeve body with an opening in one end; the side, opposite to the opening, of the toothholder is the bottom of the toothholder; the tooth sleeve is arranged on the inner side of the toothholder in a sleeved mode from the opening of the toothholder; the inner side face of the toothholder comprises a taper hole face and a cylindrical hole face which are sequentially arranged from the opening of the toothholer to the bottom of the toothholer, the taper hole face and the cylindrical hole face are coaxial, and the end with the larger size of the taper hole face is close to the opening side of the toothholder; the toothholder further comprises an outer end face at the opening, and the outer end face is connected with the end with the larger size of the taper hole face; the outer side face of the tooth sleeve comprises an outer taper face, a cylindrical face and a flange end face which are sequentially matched with the taper hole face, the cylindrical hole face and the outer end face of the toothholder correspondingly; and the flange end face is an outer surface, used for being matched with the outer end face of the toothholder, of a flange body of the tooth sleeve. The cutting tooth assembly uses the toothholder assembly. According to the toothholder assembly, the good matching effect of the toothholder and the tooth sleeve can be achieved, and the service life of the toothholder and the tooth sleeve is prolonged.
Description
Technical field
The present invention relates to mining machinery part field, espespecially a kind of toothholder assembly and cut tooth assembly.
Background technology
Mining, tunnel piercing, basic broken rock construction etc. all be unable to do without excavating equipment, and excavating equipment relies on its work clothes
Put and carry out broken rock operation, its equipment is generally welded with multiple toothholders, is provided with cut tooth in corresponding toothholder.Cut tooth is direct
Participate in broken rock, working condition very severe, bear HI high impact, heavily stressed.In order to ensure the uniform wear of cut tooth it is desirable to cut
Tooth is arranged on free to rotate after toothholder, and this requires there is larger gap between cut tooth and toothholder.In rock break-off process, toothholder
Equally subject impact and the abrasion of cut tooth, the abrasion of toothholder can lead to the change of cut tooth operating angle, and then leads to work
That makees device milling efficiency is greatly reduced scrapping of even equipment.
In order to avoid the life-span crossing quick-wearing, improving equipment of toothholder, prior art is to toothholder material and heat treatment
Propose requirements at the higher level, although this can delay the abrasion of toothholder, be as the carrying out worn and torn, the efficiency of equipment can be gradually
Decline, corresponding construction period and cost can increase.
In order to change this present situation, some prior arts increase a tooth set using between toothholder and cut tooth, work as tooth
Directly replace after set abrasion, so can extend the life-span of equipment.But coordinate between toothholder and tooth set in prior art
Not good, and because the larger stress problem existing makes the abrasion to toothholder and tooth set still more serious.
Content of the invention
It is an object of the invention to provide a kind of toothholder assembly, it is capable of toothholder and tooth inner room preferably fiting effect, prolongs
Long toothholder, the service life of tooth set.
It is a further object of the present invention to provide a kind of cut tooth assembly, it applies aforesaid toothholder assembly.
The technical scheme that the present invention provides is as follows：
A kind of toothholder assembly, including toothholder and tooth set：
Described toothholder is the body of one end open, and the side relative with described opening is the bottom of described toothholder；Described
Tooth set is sheathed on the inner side of described toothholder at the opening of described toothholder；
The medial surface of described toothholder includes taper hole face and the cylinder hole face setting gradually to bottom from the opening of toothholder, and institute
State taper hole face and cylinder hole face is coaxial, one end of described taper hole face large-size is arranged near the opening side of toothholder；
Described toothholder also includes the outer face at opening, and one end of the large-size in described outer face and described taper hole face
Connect；
The lateral surface of described tooth set includes matching respectively successively with the taper hole face of described toothholder, cylinder hole face, outer face
Male cone (strobilus masculinus), the face of cylinder and flange end face；Wherein, described flange end face is described tooth set for the outer face with described toothholder
The outer surface of the body flange matching.
It is further preferred that the taper hole face of described toothholder is 0-30 ° with the taper of the male cone (strobilus masculinus) of described tooth set.
It is further preferred that the male cone (strobilus masculinus) of the taper hole face of described toothholder and described tooth set is tight fit；
It is further preferred that the face of cylinder of the cylinder hole face of described toothholder and described tooth set is tight fit.
It is further preferred that the outer face of described toothholder is the plane perpendicular with the axle in the taper hole face of described toothholder,
And it is provided with adjusting pad between the flange end face of the outer face of described toothholder and described tooth set.
It is further preferred that described adjusting pad is the adjusting pad of antirust material.
It is further preferred that being provided with sealing ring at least one group in three groups of mating surfaces.
It is further preferred that the bottom side close to described toothholder is the bottom that described tooth covers, the bottom of described tooth set
It is provided with and covers the first screwed hole of medial compartment for connecting toothholder medial compartment and tooth, and this first screwed hole passes through first and seals
Plug carries out detachable closure.
It is further preferred that described toothholder is provided with for connecting in toothholder with the intersection location of cylinder hole face in its taper hole face
Side cavity and the second outside screwed hole, and this second screwed hole carries out detachable closure by the second seal plug.
It is further preferred that constituting an airtight chamber between described toothholder and described tooth set.
Present invention also offers a kind of cut tooth assembly, it includes：
Toothholder assembly as the aforementioned；
Cut tooth；
Described cut tooth covers inner side located at the tooth of described toothholder assembly.
The toothholder assembly being provided by the present invention and cut tooth assembly, can bring following at least one beneficial effect：
1st, the present invention is capable of toothholder and tooth inner room preferably coordinates.In prior art the medial surface of toothholder and tooth set
Lateral surface mostly is face of cylinder cooperation in cooperation, and the tooth set that toothholder is subject to and the stress that instrument tooth (such as cut tooth) transmits are basic
On all concentrate on the outer face position (with the outer face position of the application) of tooth set, thus the stress mistake that toothholder outer face is subject to
Greatly, toothholder is easy to wear or deforms.And the present invention passes through the male cone (strobilus masculinus) cooperation of toothholder taper hole face and tooth set, toothholder outer end can be shared
The stress that face is born.The structure of toothholder so not only can be protected, effectively prevent toothholder abrasion or deform；On the other hand, this
Planting cone match can also be that tooth set provides preferably support, effectively prevent tooth from covering deformation.Thus, the toothholder assembly of the present invention exists
In cooperation, effect more preferably, effectively extends toothholder and the service life of tooth set.
2nd, multiple mating surfaces of the present invention are tight fit, the gapless laminating on surface of as matching, so can be effective
Ensure the no relative motion that matches between surface, fiting effect is more preferably.The taper hole face of toothholder for example of the present invention and the outer cone of tooth set
Be tight fit between face, the face of cylinder of the cylinder hole face of toothholder and tooth set is tight fit, this makes it possible to effectively to reduce toothholder and
The relative motion of tooth inner room, improves the fiting effect of the two.
3rd, due to the presence of mismachining tolerance, preferential, the present invention ensures that toothholder taper hole face covers, with tooth, the feelings that male cone (strobilus masculinus) matches
Under condition, gap certainly will be had between the flange end face of the outer face of toothholder and tooth set, make the outer end of toothholder by increasing adjusting pad
Gap between the flange end face of face and tooth set is as little as possible, thus ensureing can comprehensively contact between tooth set and toothholder, prevents
Only local pressure is excessive and deform in the course of the work for tooth set.Preferably, adjusting pad is to be difficult material of getting rusty, preferably copper or stainless
Steel, can effectively prevent rust between toothholder and tooth set flange dead.
4th, the face of cylinder of the male cone (strobilus masculinus) of the taper hole face of the toothholder of the present invention and tooth set, the cylinder hole face of toothholder and tooth set, tooth
Between the flange end face of the outer face of seat and tooth set, it is provided with sealing ring between at least one group mating surface, can effectively prevent
The faying face rust of toothholder and tooth set is dead.
5th, tooth set bottom of the present invention is provided with the first screwed hole, and it can play excessive gas between exclusion tooth set and toothholder
Effect.During tooth is enclosed within press-in toothholder cavity, unnecessary gas can be easy to the pressure of tooth set by the first screwed hole exclusion
Enter.After tooth set press-in, the first screwed hole is blocked using seal plug, with prevent in work progress muddy water enter tooth set and toothholder it
Between gap and lead to rust dead.When needing to change tooth set, only need to open plug, connect hydraulic test, can be readily by tooth
Set ejection.It is further preferred that the second screwed hole is additionally provided with toothholder, the first screwed hole can be assisted to play the work of exclusion gas
With, and provide bigger thrust for the ejection of tooth set further.
6th, the present invention constitutes airtight chamber in toothholder and tooth inner room, instrument tooth (the such as cut after tooth set is installed
Tooth) extruding when, the counteracting force that airtight chamber is squeezed and produces can uniformly act on whole toothholder and tooth puts, can
Further to prevent the deformation of toothholder and tooth set.Specifically, in the prior art, toothholder and tooth inner room do not form closed chamber
Room, the counteracting force between the two is present between face and face, be scleroma configuration counteracting force, thus easily damage toothholder and
The self structure of tooth set.And the counteracting force of toothholder and tooth inner room can be entered row buffering by airtight chamber by the present invention, and by
The resiliency material such as many filling gas or liquid oil in airtight chamber, also can be by toothholder by the mobility of such buffer substance
Be distributed to whole airtight chamber with the counteracting force of tooth set, so counteracting force is distributed to toothholder, in the overall structure of tooth set,
Toothholder, tooth set are preferably protected.
Brief description
Below by the way of clearly understandable, preferred implementation is described with reference to the drawings, to a kind of toothholder assembly and cut
The above-mentioned characteristic of tooth assembly, technical characteristic, advantage and its implementation are further described.
Fig. 1 is a kind of structural representation of embodiment of toothholder assembly of the present invention；
Fig. 2 is the structural representation of toothholder in Fig. 1；
Fig. 3 is the structural representation of tooth set in Fig. 1；
Fig. 4 is a kind of structural representation of embodiment of cut tooth assembly of the present invention.
Drawing reference numeral explanation：
1- toothholder, 101- taper hole face, 102- cylinder hole face, 103- outer face, 104- chamfering, 105- second screwed hole,
106- toothholder cavity, 2- tooth set, 21- cone, 22- cylinder, 23- body flange, 24- first screwed hole, 25- seal groove, 26-
Tooth set cavity, 201- male cone (strobilus masculinus), the 202- face of cylinder, 203- flange end face, 3- second seal plug, 4- first sealing ring, 5- the
One seal plug, 6- second sealing ring, 7- adjusting pad, 8- cut tooth, 9- airtight chamber.
Specific embodiment
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, brief description will be compareed below
The specific embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, and obtain other embodiments.
For making simplified form, each in figure only schematically show part related to the present invention, and they do not represent
It is as the practical structures of product.In addition, so that simplified form readily appreciates, there is identical structure or function in some in figures
Part, only symbolically depicts one of, or has only marked one of.Herein, " one " not only represents
" only this " is it is also possible to represent the situation of " more than one ".
In the embodiment one of toothholder assembly of the present invention, with reference to Fig. 1, Fig. 2, Fig. 3, toothholder assembly includes toothholder 1 and tooth set
2, wherein, toothholder 1 is the body of in figure upper end open, and tooth set 2 is pressed into toothholder cavity 106, thus covering at this opening of toothholder 1
Inner side located at toothholder 1.The medial surface of toothholder 1 includes coaxial taper hole face 101 and cylinder hole face 102, and taper hole face 101 and circle
Post holes face 102 sets to bottom (the toothholder side relative with toothholder opening, the toothholder lower end of in figure) successively from the opening of toothholder 1
Put, as illustrated, taper hole face 101 is at the opening of toothholder.Wherein, one end of the large-size in taper hole face 101 is near toothholder
Opening side setting so that taper hole in the face of tooth set male cone (strobilus masculinus) play a supporting role.Tooth set 2 includes cone 21, cylinder
Body 22 and body flange 23, tooth covers 2 lateral surface and the medial surface of toothholder 1 matches, as shown in figure 3, the lateral surface of tooth set is included outward
The conical surface 201, the face of cylinder 202, wherein, match in the taper hole face of male cone (strobilus masculinus) and toothholder, and the cylinder hole face of the face of cylinder and toothholder matches
Close.Toothholder 1, except medial surface structure, also includes the outer face 103 at opening.For the outer face cooperation of same toothholder 1, tooth set 2
Also setting is overlapped in the body flange 23 at toothholder outer face, the flange end face 203 of body flange 23 and the outer face of toothholder 1 further
103 contact and coordinate.
In aforesaid embodiment one, the taper hole face of toothholder is identical with the taper of the male cone (strobilus masculinus) that tooth covers, and is 0-30 °, excellent
Selection of land is 0.5-30 °.
It is preferable that the male cone (strobilus masculinus) of the taper hole face of toothholder and tooth set is tight fit in aforesaid embodiment one, the circle of toothholder
The face of cylinder of post holes face and tooth set is tight fit.
It is preferable that the outer face of toothholder is puts down perpendicular with the axle in the taper hole face of toothholder in aforesaid embodiment one
It is provided with adjusting pad between face, and the flange end face of the outer face of toothholder and tooth set.Due to the presence of mismachining tolerance, protect preferential
Card taper hole face cooperation in the case of, gap certainly will be had between toothholder outer face, by increase adjusting pad make toothholder outer face and
The gap that tooth covers between flange end face is as little as possible, thus ensureing can comprehensively contact between tooth set and toothholder, prevents toothholder
Local pressure is excessive and deform in the course of the work with tooth set.Further, adjusting pad is antirust material, preferably copper or stainless
Steel, can effectively prevent the rust between toothholder and tooth set body flange dead.
The conical surface of the present invention, the face of cylinder, in three groups of mating surfaces of flange surface, at least one group mating surface contains a sealing
Circle.In aforesaid embodiment one, reference picture 1-3, include two sealing rings, respectively toothholder cylinder hole face and tooth set cylinder
Match first sealing ring 4 at place in face, and toothholder taper hole face and tooth cover male cone (strobilus masculinus) and match second sealing ring 6 at place.Specifically
Ground, at the seal groove 25 on tooth set 2, the second sealing ring 6 is located at toothholder located at toothholder 1 taper hole face 101 to the first sealing ring 4
At the chamfering 104 of opening.In other embodiments it is also possible to arrange sealing ring only at one group of mating surface, such as only setting is schemed
In the first sealing ring or the second sealing ring.More excellent, more sealing rings can also be set in other embodiment, for example often
It is respectively provided with sealing ring at group mating surface.The setting of sealing ring can effectively prevent from occurring the dead situation of rust, side between tooth set and toothholder
Just tooth set is changed.
Preferably, reference picture 1-3, in one embodiment of the invention, tooth puts and is additionally provided with for connecting toothholder cavity
106 and tooth cover cavity 26 the first screwed hole 24, containing the first sealing ring 4 tooth set 2 press-in toothholder cavity 106 process
In, between toothholder bottom and tooth set bottom, unnecessary gas can be excluded by the first screwed hole 24, is easy to the press-in of tooth set 2.Tooth
After set 2 press-in, the first screwed hole 24 is blocked using the first seal plug 5, to prevent muddy water in work progress from entering tooth set 2 and tooth
Gap between seat 1 and lead to rust dead.When needing to change tooth set 2, only need to open the first seal plug 5, connect hydraulic test,
Just can be by tooth set 2 ejection.
It is further preferred that on the basis of the embodiment of aforementioned setting the first screwed hole, reference picture 1-3, the present invention's
Another embodiment be also provided with toothholder 1 for connecting toothholder cavity 106 and the second extraneous screwed hole 105 it is preferable that
This second screwed hole 105 is at the taper hole face 101 of toothholder and the intersection location of cylinder hole face 102.When containing the first sealing ring 4
Cover 2 with the tooth of the second sealing ring 6 during press-in toothholder cavity 106, between the first sealing ring 4 and the second sealing ring 6
Unnecessary gas in toothholder cavity can be excluded by the second screwed hole 105, is easy to the press-in of tooth set 2.After tooth set 2 press-in, adopt
Block this screwed hole with the second seal plug 3, preventing muddy water in work progress from entering the gap between tooth set 2 and toothholder 1
Lead to rust dead.When needing to change tooth set 2, and relying on the first screwed hole 24 cannot eject tooth set, press device can be connected again
It is connected on the second screwed hole 105, bigger thrust so can be provided to eject tooth set 2.
It is further preferred that constituting an airtight chamber, from the conical surface, the face of cylinder bottom of until between the toothholder of the present invention and tooth set
The position in portion all constitutes airtight chamber.Preferably, with reference to Fig. 1, close by the first sealing ring 4 and second between toothholder 1 and tooth set 2
Seal 6 is sealed, and airtight chamber 9 concentrates on toothholder 1 bottom and tooth covers the position between 2 bottoms.After tooth set is installed
The extruding of instrument tooth (such as cut tooth) when, the counteracting force that airtight chamber is squeezed and produces can uniformly act on whole
Individual toothholder and tooth put, and can further prevent toothholder and the deformation of tooth set.
Present invention also offers a kind of cut tooth assembly, it applies the toothholder assembly of previous embodiment offer.In cut
In one embodiment one of tooth assembly, with reference to Fig. 4, cut tooth assembly includes toothholder 1, tooth set 2 and cut tooth 8, wherein, tooth set 2
In the cavity of toothholder 1, cut tooth 8 is in the cavity of tooth set 2.Wherein, toothholder 1 and tooth set 2 pass through the face of cylinder, conical surface phase
Coordinate, and the flange end face of the outer face by toothholder and tooth set matches.In the preferential base ensureing the face of cylinder, cone match
On plinth, in order to ensure the better fit of toothholder outer face and tooth set flange end face, one adjusting pad 7 is set in this position.Further
Ground, the cooperation position covering the face of cylinder in toothholder and tooth is provided with the first sealing ring 4, and is provided with the second sealing in the position of cone match
Circle 6, effectively prevent toothholder and tooth set rust dead.Further, tooth set bottom is additionally provided with for connecting toothholder cavity and tooth set
First screwed hole of cavity, and detachable closure is carried out by the first seal plug 5.Toothholder intersects in the conical surface and the face of cylinder
Position be additionally provided with for connecting toothholder cavity and the second outside screwed hole, and carried out detachably by the second seal plug 3
The closure of formula.
It should be noted that above-described embodiment all can independent assortment as needed.The above is only the preferred of the present invention
Embodiment it is noted that for those skilled in the art, in the premise without departing from the principle of the invention
Under, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of toothholder assembly, cover including toothholder and tooth it is characterised in that：
Described toothholder is the body of one end open, and the side relative with described opening is the bottom of described toothholder；Described tooth set
It is sheathed on the inner side of described toothholder at the opening of described toothholder；
The medial surface of described toothholder includes taper hole face and the cylinder hole face setting gradually to bottom from the opening of toothholder, and described cone
Hole face and cylinder hole face are coaxial, and one end of described taper hole face large-size is arranged near the opening side of toothholder；
Described toothholder also includes the outer face at opening, and one end phase of described outer face and the large-size in described taper hole face
Connect；
The lateral surface of described tooth set includes outer with what matched successively respectively in the taper hole face of described toothholder, cylinder hole face, outer face
The conical surface, the face of cylinder and flange end face；Wherein, described flange end face is matching for the outer face with described toothholder of described tooth set
The outer surface of the body flange closing.
2. toothholder assembly according to claim 1 it is characterised in that：
The taper hole face of described toothholder is 0-30 ° with the taper of the male cone (strobilus masculinus) of described tooth set.
3. toothholder assembly according to claim 1 it is characterised in that：
The male cone (strobilus masculinus) of the taper hole face of described toothholder and described tooth set is tight fit；
And/or,
The face of cylinder of the cylinder hole face of described toothholder and described tooth set is tight fit.
4. toothholder assembly according to claim 3 it is characterised in that：
The outer face of described toothholder is the plane perpendicular with the axle in the taper hole face of described toothholder,
And it is provided with adjusting pad between the flange end face of the outer face of described toothholder and described tooth set.
5. toothholder assembly according to claim 4 it is characterised in that：
Described adjusting pad is the adjusting pad of antirust material.
6. toothholder assembly according to claim 1 it is characterised in that：
It is provided with sealing ring at least one group in three groups of mating surfaces.
7. toothholder assembly according to claim 1 it is characterised in that：
Bottom side close to described toothholder is the bottom that described tooth covers, and the bottom of described tooth set is provided with for connecting in toothholder
Side cavity and tooth cover the first screwed hole of medial compartment, and this first screwed hole carried out by the first seal plug detachable
Closure.
8. toothholder assembly according to claim 7 it is characterised in that：
Described toothholder is provided with the intersection location of cylinder hole face in its taper hole face for connecting toothholder medial compartment and outside the
Two screwed holes, and this second screwed hole carries out detachable closure by the second seal plug.
9. according to the arbitrary described toothholder assembly of claim 1-8 it is characterised in that：
An airtight chamber is constituted between described toothholder and described tooth set.
10. a kind of cut tooth assembly is it is characterised in that include：
Described toothholder assembly as arbitrary in claim 1-9；
Cut tooth；
Described cut tooth covers inner side located at the tooth of described toothholder assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908748.0A CN106436804A (en) | 2016-10-18 | 2016-10-18 | Toothholder assembly and cutting tooth assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908748.0A CN106436804A (en) | 2016-10-18 | 2016-10-18 | Toothholder assembly and cutting tooth assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106436804A true CN106436804A (en) | 2017-02-22 |
Family
ID=58175426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610908748.0A Pending CN106436804A (en) | 2016-10-18 | 2016-10-18 | Toothholder assembly and cutting tooth assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106436804A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561698A (en) * | 1984-06-21 | 1985-12-31 | Beebe Donald E | Wear protector for tooth brackets on roadway surface cutting machines |
| US5088797A (en) * | 1990-09-07 | 1992-02-18 | Joy Technologies Inc. | Method and apparatus for holding a cutting bit |
| US5725283A (en) * | 1996-04-16 | 1998-03-10 | Joy Mm Delaware, Inc. | Apparatus for holding a cutting bit |
| US5738415A (en) * | 1994-01-05 | 1998-04-14 | Minnovation Limited | Pick holder and fixing sleeve for an extraction machine |
| CN2294333Y (en) * | 1997-04-24 | 1998-10-14 | 太原矿山机器厂 | Cutting edge for coal prodn. machine |
| US20100253130A1 (en) * | 2009-04-02 | 2010-10-07 | The Sollami Company | Slotted Shank Bit Holder |
| CN102828750A (en) * | 2012-09-11 | 2012-12-19 | 三一重型装备有限公司 | Cutting pick device and mining machine |
| CN202900278U (en) * | 2012-11-15 | 2013-04-24 | 上海创力集团股份有限公司 | Pickaxe-shaped cutting tooth holder system |
| WO2016164919A1 (en) * | 2015-04-10 | 2016-10-13 | Joy Mm Delaware, Inc. | Cutting bit and extraction tool for same |
| CN206128165U (en) * | 2016-10-18 | 2017-04-26 | 周德吉 | Toothholder subassembly and cut tooth subassembly |
-
2016
- 2016-10-18 CN CN201610908748.0A patent/CN106436804A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561698A (en) * | 1984-06-21 | 1985-12-31 | Beebe Donald E | Wear protector for tooth brackets on roadway surface cutting machines |
| US5088797A (en) * | 1990-09-07 | 1992-02-18 | Joy Technologies Inc. | Method and apparatus for holding a cutting bit |
| US5738415A (en) * | 1994-01-05 | 1998-04-14 | Minnovation Limited | Pick holder and fixing sleeve for an extraction machine |
| US5725283A (en) * | 1996-04-16 | 1998-03-10 | Joy Mm Delaware, Inc. | Apparatus for holding a cutting bit |
| CN2294333Y (en) * | 1997-04-24 | 1998-10-14 | 太原矿山机器厂 | Cutting edge for coal prodn. machine |
| US20100253130A1 (en) * | 2009-04-02 | 2010-10-07 | The Sollami Company | Slotted Shank Bit Holder |
| CN102828750A (en) * | 2012-09-11 | 2012-12-19 | 三一重型装备有限公司 | Cutting pick device and mining machine |
| CN202900278U (en) * | 2012-11-15 | 2013-04-24 | 上海创力集团股份有限公司 | Pickaxe-shaped cutting tooth holder system |
| WO2016164919A1 (en) * | 2015-04-10 | 2016-10-13 | Joy Mm Delaware, Inc. | Cutting bit and extraction tool for same |
| CN206128165U (en) * | 2016-10-18 | 2017-04-26 | 周德吉 | Toothholder subassembly and cut tooth subassembly |
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