CN105221149A - A kind of novel dimorphism chamber combination tool rest - Google Patents
A kind of novel dimorphism chamber combination tool rest Download PDFInfo
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- CN105221149A CN105221149A CN201410270805.8A CN201410270805A CN105221149A CN 105221149 A CN105221149 A CN 105221149A CN 201410270805 A CN201410270805 A CN 201410270805A CN 105221149 A CN105221149 A CN 105221149A
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- tool rest
- chamber combination
- combination tool
- dimorphism
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Abstract
A kind of novel dimorphism chamber combination tool rest, primarily of toothholder, Connection Block, base, dust protection rubber pad, welding baffle plate, bolt composition.The connected mode of toothholder and Connection Block is the inserted assembling of guide rail, and the connected mode of Connection Block and base is the inserted assembling of guide rail.Wherein pick installing hole is set at the head of toothholder, installing hole is set to circular and rectangle two kinds of forms, be provided with in the beveled cone part of toothholder and open wide open type opening, for the liftout attachment of pick provides space, the replacing of pick ejects by making device, the replacing of tool rest is only changed Connection Block in the ordinary course of things, substitute mode is remove the bolt between Connection Block and base, carry out Connection Block replacing, in particular cases just change base, scientific structure design is reasonable, simple to operate, practical.
Description
Technical field
Patent of the present invention relates to a kind of mining pick tool rest, is a kind of novel dimorphism chamber combination tool rest specifically.
Background technology
Mining pick tool rest is as mining component of machine, especially as the load bearing component of cutting mining pick, effect in winning equipment is most important, tool rest general mostly at present is two parts and combines, pick is placed in the pick installing hole of tool rest, in use two parts combining structure tool rest is changed frequent, the all parts of each replacing all need to ressemble, and it is large to change required expense, consuming time many, pick can not be changed flexibly, increase mining cost to a certain extent, for above-mentioned situation, a kind of novel dimorphism chamber combination tool rest of Patent design of the present invention, in use generally only need change middle Connection Block part, change flexible, effectively can improve mining pick tool rest functional performance, reduce mining cost.
Summary of the invention
The object of patent of the present invention is convenient for making pick tool rest in mining process change, and reduces mining cost, provides a kind of novel dimorphism chamber combination tool rest.
Patent of the present invention is achieved in that a kind of novel dimorphism chamber combination tool rest, primarily of toothholder (1), Connection Block (2), base (3), dust protection rubber pad (4), welding baffle plate (5), bolt (6) forms, toothholder (1) is installed on Connection Block (2) by guide rail is inserted, form assembly A, assembly A is installed on base (3) by Connection Block 2 so that guide rail is inserted, form dimorphism cavity combining body B, after dimorphism cavity combining body B has assembled, lower arcuate surface being welded to adopts on the milling and planing drum of mine equipment, it is characterized in that the connection of toothholder (1) and Connection Block (2) needs by common hexagon socket head cap screw (6-1) bolt further, Connection Block (2) and the connection of base (3) need by common hexagon socket head cap screw (6-2) bolt further, welding baffle plate (5) is welded on rearmounted (10-5) of Connection Block (2), welding baffle plate (5) forms semiclosed open space with the open type opening (8-6) of toothholder, in pick Renewal process, liftout attachment is placed in semiclosed open space, to weld baffle plate (5) as supporting surface, pick is ejected toothholder, complete the dismounting of pick, fill dust protection rubber pad (4) at the bolt positioning hole (5-1) and bolt positioning hole (15-1) counter sink position of placing common hexagon socket head cap screw (6-1) and common hexagon socket head cap screw (6-2) simultaneously, prevent from causing dismounting difficulty because of cinder in mining process and pouring into of dust.
The replacing of tool rest is achieved in that generally, and the replacing of work a period of time replacing toothholder (1), toothholder (1) removes common hexagon socket head cap screw (6-1) to be ejected from Connection Block by toothholder (1) with liftout attachment; The replacing of Connection Block (2) is after toothholder (1) is changed repeatedly, use reaches certain limit and starts to change Connection Block (2), remove common hexagon socket head cap screw (6-2) during the replacing of Connection Block (2), with liftout attachment, Connection Block (2) is ejected from base (3); Base (3) is also finally the minimum parts of replacement frequency, and the replacing of base (3) needs to change from welding junction cutting.
The novel said structure of the present invention is scientific and reasonable, avoids the integrally-built replacing of tool rest, changes simple and fast, reduces mining cost, improves tool rest economic and practical.
accompanying drawing illustrates:
Fig. 1: Novel main view of the present invention 1 be toothholder, 2 is Connection Block, 3 be base, 4 be dust protection rubber pad, 5 for welding baffle plate, 6 is for bolt.
Fig. 2: toothholder 1 is main to be looked, 7 is that toothholder head, 8 is beveled cone one, 7-1 is the conical surface, 7-2 is cylinder, α
1for angle.
Fig. 3: toothholder 1 left view, 8-1 is table top, 8-2 is auxiliary fitting surface, 8-3 is tapering conjunction surface, 8-4 is rearmounted of bottom surface, 8-5.
Fig. 4: toothholder 1 axonometric drawing, 8-6 are open type opening, 9 is bolt fastening hole.
Fig. 5: 5 is welding baffle plate, and 5-1 is bolt positioning hole.
Fig. 6: the front view of Connection Block 2,10 be beveled cone die cavity one, 11 be beveled cone two, 11-5 is rearmounted.Fig. 7: the left view of Connection Block 2, α
2for angle, 10-5 is rearmounted.
Fig. 8: the left view of Connection Block 2, β
1for angle.
Fig. 9: Connection Block 2 is about the sectional drawing in left view A direction, and 10-1 table top, 10-2 are auxiliary fitting surface, 10-3 is tapering conjunction surface, 10-4 is bottom surface, 11-1 is table top, 11-2 assists that fitting surface, 11-3 are tapering conjunction surface, 11-4 is bottom surface, 11-6 is bolt fastening hole.
Figure 10: the axonometric drawing of base 3,13 be beveled cone die cavity two, 14 is lower arcuate surface.
Figure 11: the front view of base 3,13-1 table top, 13-2 assist fitting surface, 13-3 tapering conjunction surface, 13-4 bottom surface.
Figure 12: the left view β of base 3
2for angle, 13-5 is rearmounted.
Figure 13: the front view of rearmounted Bolt to position plate 15,15 is rearmounted Bolt to position plate, and 15-1 is bolt positioning hole.
Figure 14 is the front view of assembly A.
Figure 15 is the front view Novel main view of the present invention of dimorphism cavity combining body B, 1 be toothholder, 2 be Connection Block, 3 for base, 4-1 and 4-2 be that dust protection rubber pad, 5 is welding baffle plate, 6-1 is common hexagon socket head cap screw, 6-2 is common hexagon socket head cap screw.
Figure 16 is that this invention Novel welding is to the front view on milling and planing drum.
detailed description of the invention:
First by reference to the accompanying drawings novel to the present invention Each part is stated in detail, as shown in Figure 1, the present invention is novel is a kind of novel dimorphism chamber combination tool rest, primarily of toothholder (1), Connection Block (2), base (3), dust protection rubber pad (4), welding baffle plate (5), bolt (6) composition.Toothholder (1) is press forging or the one of steel-casting.
Toothholder head (7) is primarily of toothholder head (7) as shown in Figure 2, beveled cone one (8) forms, wherein said toothholder head (7) arranges circular pick installing hole, any one in rectangle cutter tooth installing hole, to facilitate, common pick and cutter tooth are installed, toothholder head (7) comprises again the conical surface (7-1) and cylinder (7-2) two kinds of structures, the wherein said conical surface (7-1) and cylinder (7-2) junction are fillet, any one in chamfering, and at the surface overlaying wearing layer of the conical surface (7-1) and cylinder (7-2), brazing hard alloy or cladding wearing layer, increase the abrasion resistance of toothholder (1), improve the application life of toothholder (1), beveled cone one (8) comprises table top (8-1), auxiliary fitting surface (8-2), tapering conjunction surface (8-3) and bottom surface (8-4), rearmounted (8-5) as shown in Figure 3.Wherein table top (8-1) and tapering conjunction surface (8-3) form stable triangle stress surface one, increase toothholder (1) stability in mining process, and prevent toothholder (1) from loosening, table top (8-1) and bottom surface (8-4) form angle α
1, be conducive to dismantling in assembling process; As shown in Figure 4 two bolt fastening hole (9) are set on rearmounted (8-5) of toothholder (1), beveled cone central axis side arranges open type opening (8-6), open type opening can be arranged to rectangle and circle shape, and the setting of open type opening (8-6) is mainly the pick setting liftout attachment when dismantling pick provides space; Weld baffle plate (5) as shown in Figure 5 and be set to cuboid thin plate.Three ribs arrange fillet wherein, and arrange two bolt positioning holes (5-1) side by side in welding baffle plate (5), bolt positioning hole (5-1) is made up of counter sink and through hole.
Be the front view of middle Connection Block as shown in Figure 6, (10) be beveled cone die cavity one, the inner surface of die cavity is the shape processing by beveled cone one (8) in accompanying drawing (2), (11) be beveled cone two, (11-5) be rearmounted of beveled cone two (11), (11-6) is two bolt fastening hole be arranged side by side; α as shown in Figure 7
2for the angle that table top (11-1) and bottom surface (11-4) are formed, (10-5) is rearmounted; β as shown in Figure 8
1for the angle that the central transverse axis of beveled cone die cavity one (10) becomes with the central transverse axis of beveled cone two (11), (10-5) is rearmounted of beveled cone die cavity one (10).Angle β
1arrange Main Function be after assembling is completed assembly B be certain elevation angle; As shown in accompanying drawing 9, beveled cone die cavity one (10) comprises table top (10-1), auxiliary fitting surface (10-2), tapering conjunction surface (10-3), bottom surface (10-4), wherein table top (10-1) and tapering conjunction surface (10-3) form stable gusseted face one, for the installation of the beveled cone of toothholder (1) provides corresponding stable support, increase the stability connected; Beveled cone two (11) mainly comprises table top (11-1), auxiliary fitting surface (11-2), tapering conjunction surface (11-3), bottom surface (11-4), wherein table top (11-1) and tapering conjunction surface (11-3) form stable triangle stress surface two, increase Connection Block (2) stability in mining process, prevent Connection Block (2) from loosening, α
2for the angle that table top (11-1) and bottom surface (11-4) are formed, be conducive to the dismounting of Connection Block, groove (12) is there is between beveled cone die cavity two (10) and beveled cone two (11), groove (12) be set to dovetail groove, rectangular channel any one, be mainly used in clamping in Connection Block (2) and base (3) assembling process.
As shown in Figure 10, (13) be beveled cone die cavity two, the inner surface of die cavity processes according to the shape of the beveled cone two (11) of Connection Block (2), and (14) are lower arcuate surface, and the radian of lower arcuate surface (14) determines according to the milling and planing drum external diameter used in mining process; As shown in Figure 11, beveled cone die cavity two comprises table top (13-1), auxiliary fitting surface (13-2), tapering conjunction surface (13-3), bottom surface (13-4), wherein table top (13-1) and tapering conjunction surface (13-3) form stable triangular support face two, for the installation of the beveled cone (11) in Connection Block (2) provides corresponding stable support, increase the stability connected; As shown in Figure 12, β
2for the central transverse axis of beveled cone die cavity (13) becomes angle with the central transverse axis of lower arcuate surface (14).
As shown in Figure 13, (15) are rearmounted Bolt to position plate, as the individual components of base (3), rearmounted Bolt to position plate (15) is arranged side by side two bolt positioning holes (15-1) wherein bolt positioning hole (15-1) be made up of counter sink and through hole.
14-15 and above-mentioned accompanying drawing 1-13 illustrates the concrete assembling mode that this invention is novel by reference to the accompanying drawings.
As shown in Figure 14, when assembling this inventing type tool rest, first the assembling of assembly A will be carried out, the assembling process of assembly A is: toothholder (1) is assembled on Connection Block (2), toothholder (1) is the inserted assembling of guide rail with the connected mode of Connection Block (2), by inserted for beveled cone one (8) guide rail in toothholder (1) being assembled in beveled cone die cavity one (10) is formed matched in clearance, angle [alpha] with Connection Block (2)
1be arranged so that beveled cone (8) is easily dismantled in the process being mounted to beveled cone die cavity one (10), now the joint, triangle stable support face one of stress surface one and beveled cone die cavity one (10) stablized by the triangle of beveled cone one (8), form stable triangle assembly, make the installation of toothholder (1) firm, prevent left-right looseness on central axis, meanwhile welding baffle plate (5) is welded on rearmounted (10-5), bolt (6-1) is used to be placed in bolt positioning hole (5-1) bolt of welding baffle plate (5) in bolt fastening hole (9) after having welded again, with the bolt of this sample loading mode prevent toothholder (1) centrally axis direction come off, after installing bolt (6-1), dust protection rubber pad (4) is filled again at the counter sink clearance position of bolt positioning hole (5-1), the filling of dust protection rubber pad (4) prevents from cinder or dust in mining process from entering shutoff bolt hole to cause dismounting difficulty, so far the assembling of assembly A completes, after having assembled, by beveled cone one (8) open type opening (8-6) with weld baffle plate (5) and form a semienclosed open space, be mainly the placement space that liftout attachment is provided when dismantling pick, in unloading process, pick liftout attachment is placed in open space, weld baffle plate (5) for liftout attachment provides a rear support power simultaneously, pick is ejected, make dismounting convenient.
As shown in figure 15: complete the assembling of assembly A later in the assembling carrying out dimorphism cavity combining body B, assembly A is mounted in beveled cone die cavity two (13) by beveled cone two (11) guide rail and forms matched in clearance with base (3), and auxiliary form dimorphism cavity combining body B in the mode of bolt, concrete assembling mode is: by inserted for beveled cone two (11) guide rail being assembled in beveled cone die cavity two (13) is formed matched in clearance, angle [alpha] with base (3)
2be arranged so that beveled cone two (11) is easily dismantled in the process being mounted to beveled cone die cavity two (13), now the joint, triangle stable support face two of stress surface two and beveled cone die cavity two (13) stablized by the triangle of beveled cone two (11), form stable triangle assembly, make the installation of assembly A firm, prevent left-right looseness on central axis, meanwhile rearmounted Bolt to position plate (15) is welded on rearmounted (13-15) of beveled cone die cavity two (13), bolt positioning hole (15-1) bolt of rearmounted Bolt to position plate (15) is placed at bolt fastening hole (11-6) with common hexagon socket head cap screw (6-2) again after having welded, with cross the bolt of this sample loading mode prevent assembly A centrally axis direction come off, after installing common hexagon socket head cap screw (6-2), dust protection rubber pad (4) is filled again at the counter sink clearance position of bolt positioning hole (15-1), the filling of dust protection rubber pad (4) prevents from cinder or dust in mining process from entering shutoff bolt hole to cause dismounting difficulty, so far the assembling of dimorphism cavity combining body B completes, α before assembling
1, α
2, β
1, β
2angle can regulate, and the radian of lower arcuate surface changes according to the milling and planing drum diameter of actual winning equipment.
As shown in figure 16, dimorphism cavity combining body B is overall after completing assembling to be welded on the milling and planing drum of winning equipment by lower arcuate surface (14), then pick is installed in the toothholder head 7 of toothholder (1).
Claims (28)
1. a novel dimorphism chamber combination tool rest, primarily of toothholder (1), Connection Block (2), base (3), dust protection rubber pad (4), welding baffle plate (5), bolt (6) composition, it is characterized in that: toothholder (1) is the inserted assembling of guide rail with the connected mode of Connection Block (2), Connection Block (2) is the inserted assembling of guide rail with the connected mode of base (3).
2. one according to claim 1 novel dimorphism chamber combination tool rest, it is characterized in that: described toothholder (1) is press forging, any one in steel-casting, form primarily of toothholder head (7), beveled cone one (8), wherein said toothholder head (7) arranges any one in circular pick installing hole, rectangle cutter tooth installing hole.
3. one according to claim 1 novel dimorphism chamber combination tool rest, it is characterized in that: described Connection Block (2) is made up of beveled cone die cavity one (10) and beveled cone two (11), there is symmetrical groove (12) beveled cone die cavity one (10) and beveled cone two (11) junction, groove (12) is trapezoidal, rectangle any one.
4. one according to claim 1 novel dimorphism chamber combination tool rest, is characterized in that: described base (3) is made up of beveled cone die cavity two (13), lower arcuate surface (14), rearmounted Bolt to position plate (15).
5. one according to claim 1 novel dimorphism chamber combination tool rest, is characterized in that: described dust protection rubber pad (4) is four, is any one of cylindrical, hexagon.
6. one according to claim 1 novel dimorphism chamber combination tool rest, it is characterized in that: described welding baffle plate (5) welding position is on rearmounted (10-5) of described Connection Block (2), welding baffle plate (5) arranges two bolt positioning holes (5-1) side by side, and bolt positioning hole (5) is made up of counter sink and through hole.
7. one according to claim 1 novel dimorphism chamber combination tool rest, is characterized in that: described bolt (6) comprises common hexagon socket head cap screw (6-1) and the common hexagon socket head cap screw (6-2) of two different sizes.
8. the novel dimorphism chamber combination of the one according to claim 1-7 tool rest, is characterized in that: described toothholder (1) is mounted in beveled cone die cavity one (10) by beveled cone one (8) guide rail and forms matched in clearance with Connection Block (2), forms assembly A.
9. the novel dimorphism chamber combination of the one according to claims 1-8 tool rest, it is characterized in that: assembly A is mounted in beveled cone die cavity two (13) by beveled cone two (11) guide rail and forms matched in clearance with base (3), and auxiliary form dimorphism cavity combining body B in the mode of bolt.
10. one according to claim 2 novel dimorphism chamber combination tool rest, it is characterized in that: described toothholder head (7) is made up of the conical surface (7-1) and cylinder (7-2), the wherein said conical surface (7-1) and cylinder (7-2) junction are any one in fillet, chamfering.
11. one according to claim 10 novel dimorphism chamber combination tool rest, it is characterized in that: the described conical surface (7-1) is any one in surface overlaying wearing layer, brazing hard alloy, cladding wearing layer, described cylinder (7-2) is any one in surface overlaying wearing layer, brazing hard alloy, cladding wearing layer.
12. one according to claim 2 novel dimorphism chamber combination tool rest, it is characterized in that: described beveled cone (8), there is in central axis side open type opening (8-6), there is the table top (8-1) of inscribe the left and right sides, open type opening (8-6) is circular open, rectangular aperture any one.
13. one according to claim 2 novel dimorphism chamber combination tool rest, it is characterized in that: described beveled cone (8) forms by multiple, primarily of auxiliary fitting surface (8-2), tapering conjunction surface (8-3), bottom surface (8-4), rearmounted (8-5) composition, wherein tapering conjunction surface (8-3) and described table top (8-1) form stable triangle stress surface one, and table top (8-1) and bottom surface (8-4) form angle α
1, and rearmounted (8-5) arranges bolt fastening hole (9).
14. one according to claim 3 novel dimorphism chamber combination tool rest, it is characterized in that: described beveled cone die cavity one (10) is primarily of two table tops (10-1), auxiliary fitting surface (10-2), tapering conjunction surface (10-3), bottom surface (10-4), rearmounted (10-5) composition, and table top (10-1) and tapering conjunction surface (10-3) form stable triangular support face one.
15. one according to claim 3 novel dimorphism chamber combination tool rest, it is characterized in that: described beveled cone (11) forms by multiple, primarily of table top (11-1), auxiliary fitting surface (11-2), tapering conjunction surface (11-3), bottom surface (11-4), rearmounted (11-5) composition, table top (11-1) wherein described in tapering and tapering conjunction surface (11-3) form stable triangle stress surface two, and table top (11-1) and bottom surface (11-4) form angle α
2.
16. one according to claim 15 novel dimorphism chamber combination tool rest, is characterized in that: rearmounted of described beveled cone (11) is arranged two bolt fastening hole (11-6).
17. one according to claim 3 novel dimorphism chamber combination tool rest, is characterized in that: the central transverse axis of described beveled cone die cavity one (10) becomes angle β with the central transverse axis of beveled cone two (11)
1.
18. one according to claim 3 novel dimorphism chamber combination tool rest, is characterized in that: described beveled cone die cavity one (10) welds wearing layer with the preposition inclined-plane of beveled cone two (11).
19. one according to claim 4 novel dimorphism chamber combination tool rest, it is characterized in that: described beveled cone die cavity two (13) is primarily of table top (13-1), auxiliary fitting surface (13-2), tapering conjunction surface (13-3), bottom surface (13-4) composition, and wherein table top (13-1) and tapering conjunction surface (13-3) form stable triangular support face two.
20. one according to claim 4 novel dimorphism chamber combination tool rest, is characterized in that: the central transverse axis of described beveled cone die cavity two (13) becomes angle β with the central transverse axis of lower arcuate surface (14)
2.
The 21. one novel dimorphism chamber combination tool rests stated according to claim 4, is characterized in that: described rearmounted Bolt to position plate (15), as the individual components of base (3), rearmounted Bolt to position plate (15) is arranged side by side two bolt positioning holes (15-1).
22. one according to claim 21 novel dimorphism chamber combination tool rest, is characterized in that: described bolt positioning hole (15-1) is made up of counter sink and through hole.
23. one according to claim 8 novel dimorphism chamber combination tool rest, it is characterized in that: in described assembly A, the fastening means of toothholder (1) is that common hexagon socket head cap screw (6-1) is strained in bolt fastening hole (9) by bolt positioning hole (5-1).
24. one according to claim 9 novel dimorphism chamber combination tool rest, it is characterized in that: described assembly B, Connection Block (2) also needs additional two common hexagon socket head cap screws (6-2) with the fixing of base (3), is tightened in bolt fastening hole (11-6) by bolt positioning hole (15-1).
25. novel dimorphism chamber combination tool rests with one according to claim 9 according to Claim 8, is characterized in that: counter sink position filling dust protection rubber pad (4) of the bolt positioning hole (5-1) in described assembly A, dimorphism cavity combining body B and bolt positioning hole (15-1).
26. novel dimorphism chamber combination tool rests with one according to claim 9 according to Claim 8, it is characterized in that, weld baffle plate (5) in described assembly A to be welded as a whole with Connection Block (2), the rearmounted Bolt to position plate (15) of described assembly B and base (3) are welded as a whole.
27. will one novel dimorphism chamber combination tool rest described in book 9 according to right, it is characterized in that: in dimorphism cavity combining body B, toothholder (1) relatively and base (3) in the elevation angle.
28. one according to claim 13,15,18,22 novel dimorphism chamber combination tool rest, is characterized in that: described angle α
1, α
2, β
1, β
2can regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270805.8A CN105221149A (en) | 2014-06-18 | 2014-06-18 | A kind of novel dimorphism chamber combination tool rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270805.8A CN105221149A (en) | 2014-06-18 | 2014-06-18 | A kind of novel dimorphism chamber combination tool rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221149A true CN105221149A (en) | 2016-01-06 |
Family
ID=54990372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410270805.8A Pending CN105221149A (en) | 2014-06-18 | 2014-06-18 | A kind of novel dimorphism chamber combination tool rest |
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| CN (1) | CN105221149A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735985A (en) * | 2016-01-26 | 2016-07-06 | 山东天工岩土工程设备有限公司 | Mining high-abrasion-resistant combination toothholder |
| CN105840191A (en) * | 2016-05-23 | 2016-08-10 | 上海信搿煤炭机械有限公司 | Cutting head for tunneling machine |
| CN107295824A (en) * | 2017-08-07 | 2017-10-27 | 黑龙江省农业机械运用研究所 | A kind of overload protection type tool rest |
| CN110965444A (en) * | 2020-01-13 | 2020-04-07 | 济南大学 | Angle-adjustable modular milling device and method |
-
2014
- 2014-06-18 CN CN201410270805.8A patent/CN105221149A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735985A (en) * | 2016-01-26 | 2016-07-06 | 山东天工岩土工程设备有限公司 | Mining high-abrasion-resistant combination toothholder |
| CN105840191A (en) * | 2016-05-23 | 2016-08-10 | 上海信搿煤炭机械有限公司 | Cutting head for tunneling machine |
| CN105840191B (en) * | 2016-05-23 | 2019-08-20 | 上海信搿煤炭机械有限公司 | Cutterhead for development machine |
| CN107295824A (en) * | 2017-08-07 | 2017-10-27 | 黑龙江省农业机械运用研究所 | A kind of overload protection type tool rest |
| CN110965444A (en) * | 2020-01-13 | 2020-04-07 | 济南大学 | Angle-adjustable modular milling device and method |
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Application publication date: 20160106 |