CN214532796U - Extension formula blade disc - Google Patents
Extension formula blade disc Download PDFInfo
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- CN214532796U CN214532796U CN202120635317.8U CN202120635317U CN214532796U CN 214532796 U CN214532796 U CN 214532796U CN 202120635317 U CN202120635317 U CN 202120635317U CN 214532796 U CN214532796 U CN 214532796U
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- cutter head
- blade
- positioning
- main body
- plate
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Abstract
The utility model discloses an extension formula blade disc, it relates to the mining machinery field. The cutter head is characterized by comprising a cutter head main body and a plurality of blades, wherein the blades are detachably connected with the cutter head main body; the cutter head is characterized in that a positioning plate is arranged on the blade, and a positioning groove matched with the positioning plate is formed in the top wall of the cutter head main body. The utility model discloses a change the blade of different specifications and can satisfy the operation in different apertures, needn't wholly change the blade disc, can reduce cost, detachable structure is convenient for transport in the tunnel moreover.
Description
Technical Field
The utility model relates to a mining machinery field, more specifically says, it relates to an extension formula blade disc.
Background
As an important construction machine in mining machinery, the raise boring machine is widely applied to shaft construction with a lower transportation tunnel and stable geological conditions.
In the construction process of the raise boring machine, the reaming cutter head is a main construction tool. The prior Chinese patent with the publication number of CN107905736B discloses a drill bit for a floating raise boring machine, which comprises a cutter head, a cutter holder, a floating hob, a connecting shaft and a transverse floating spring.
However, the cutterhead in the above patent can only work for a single bore diameter, and is inconvenient to transport in a tunnel with a narrow underground.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an extension formula blade disc, its blade through changing different specifications can satisfy the operation in different apertures, needn't wholly change the blade disc, can reduce cost, and the detachable structure is convenient for transport in the tunnel moreover.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an expansion type cutter head comprises a cutter head main body and a plurality of cutter wings, wherein the cutter wings are detachably connected with the cutter head main body; the cutter head is characterized in that a positioning plate is arranged on the blade, and a positioning groove matched with the positioning plate is formed in the top wall of the cutter head main body.
Further, the blade comprises a blade top plate and a blade side plate; the locating plate set up in blade roof lateral wall, and both are integrated into one piece.
Further, the blades are connected with the cutter head main body through bolts, and a positioning assembly is arranged between the blades and the cutter head main body.
Furthermore, a plurality of first through holes are formed in the positioning plate, and first screw holes matched with the first through holes are formed in the bottom wall of the positioning groove.
Furthermore, the positioning assembly comprises a top surface positioning pin arranged on the bottom wall in the positioning groove, and the bottom wall of the positioning plate is provided with a top surface positioning hole matched with the top surface positioning pin.
Furthermore, a plurality of second through holes are formed in the blade side plate, and second screw holes matched with the second through holes are formed in the side wall of the cutter head main body.
Furthermore, the positioning assembly comprises a side positioning pin, and a first positioning hole and a second positioning hole which are matched with the side positioning pin are respectively formed in the cutter head main body and the blade side plate.
Furthermore, at least two reinforcing plates are arranged between the blade top plate and the blade side plate.
To sum up, the utility model discloses following beneficial effect has:
1. the cutter wings are detachably connected with the cutter head main body, and the operation in different apertures can be realized by replacing the cutter wings with different specifications, so that the cost can be reduced;
2. after the blades and the cutter head main body are disassembled, the single piece is small in size and convenient to transport in a tunnel;
3. the locating plate cooperates with the constant head tank, can improve the rigidity of whole blade disc on the one hand, and on the other hand can guarantee that the installation back overall dimension accords with the designing requirement.
Drawings
FIG. 1 is an exploded view of an embodiment of an expandable cutter head;
fig. 2 is a schematic structural view of a blade in the embodiment.
In the figure: 1. a cutter head main body; 11. positioning a groove; 111. a top surface positioning pin; 112. a first screw hole; 12. a second screw hole; 13. a first positioning hole; 2. a blade; 21. a blade top plate; 22. positioning a plate; 221. a top surface positioning hole; 222. a first through hole; 23. a blade side plate; 231. a second through hole; 232. a second positioning hole; 24. a reinforcing plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example (b):
an expanded cutter head, referring to fig. 1 and 2, comprises a cutter head main body 1 and a plurality of blades 2, wherein the blades 2 are detachably connected with the cutter head main body 1; the blade 2 is provided with a positioning plate 22, and the top wall of the cutter head main body 1 is provided with a positioning groove 11 matched with the positioning plate 22; in the embodiment, the number of the blades 2 is four, the operation with different apertures can be met by replacing the blades 2 with different specifications, and the blades 2 are convenient to transport in a tunnel after being disassembled from the cutter head main body 1; the positioning plate 22 is matched with the positioning groove 11, so that the requirement on the overall size of the cutter blade 2 connected with the cutter head main body 1 can be met.
Referring to fig. 1 and 2, the blade 2 includes a blade top plate 21 and a blade side plate 23; the positioning plate 22 is arranged on the side wall of the blade top plate 21 and is integrally formed with the blade top plate; at least two reinforcing plates 24 are arranged between the blade top plate 21 and the blade side plate 23, and the structural strength and the stability of the blade 2 are ensured through the reinforcing plates 24; in the present embodiment, the blade top plate 21, the blade side plate 23, and the reinforcing plate 24 are fixed by welding.
Referring to fig. 1 and 2, a cutter blade 2 is connected with a cutter head main body 1 through a bolt (not shown in the drawings), and a positioning assembly is arranged between the cutter blade and the cutter head main body; specifically, a plurality of first through holes 222 are formed in the positioning plate 22, a first screw hole 112 matched with the first through hole 222 is formed in the bottom wall of the positioning groove 11, and a bolt passes through the first through hole 222 and then is connected with the first screw hole 112, so that the blade 2 is connected with the top surface of the cutter head main body 1; the positioning assembly comprises a top surface positioning pin 111 arranged on the inner bottom wall of the positioning groove 11, and the bottom wall of the positioning plate 22 is provided with a top surface positioning hole 221 matched with the top surface positioning pin 111; the top positioning pins 111 are engaged with the top positioning holes 221, so that the mounting accuracy of the positioning plate 22 can be improved.
Referring to fig. 1 and 2, a plurality of second through holes 231 are formed in the blade side plate 23, and a second screw hole 12 matched with the second through holes 231 is formed in the side wall of the cutter head main body 1; the bolt penetrates through the second through hole 231 and then is connected with the second screw hole 12, so that the connection between the blade 2 and the side face of the cutter head main body 1 is realized; the positioning assembly further comprises a side positioning pin (not shown in the drawing), and the cutter head main body 1 and the blade side plate 23 are respectively provided with a first positioning hole 13 and a second positioning hole 232 which are matched with the side positioning pin; after the top surface positioning pin 111 is fitted to the top surface positioning hole 221, the side surface positioning pin is inserted into the first positioning hole 13 after passing through the second positioning hole 232, so that the accuracy of mounting the blade side plate 23 to the cutter head main body 1 can be improved.
Referring to fig. 1 and 2, in the present embodiment, the cutter head body 1 and the blades 2 are matched with the positioning grooves 11 through the positioning plates 22 to form a lap joint connection, and by adopting the connection mode, the shearing force born by the bolts on the side surfaces when the blades 2 are stressed can be transferred to the blade top plates 21 and the positioning plates 22, so that the rigidity of the whole cutter head can be improved.
Claims (8)
1. An extension formula blade disc which characterized in that: the cutter comprises a cutter head main body and a plurality of blades, wherein the blades are detachably connected with the cutter head main body; the cutter head is characterized in that a positioning plate is arranged on the blade, and a positioning groove matched with the positioning plate is formed in the top wall of the cutter head main body.
2. The expandable cutter head of claim 1, wherein: the blade comprises a blade top plate and a blade side plate; the locating plate set up in blade roof lateral wall, and both are integrated into one piece.
3. The expandable cutter head of claim 2, wherein: the blade is connected with the cutter head main body through a bolt, and a positioning assembly is arranged between the blade and the cutter head main body.
4. The expandable cutter head of claim 3, wherein: a plurality of first through holes are formed in the positioning plate, and first screw holes matched with the first through holes are formed in the bottom wall of the positioning groove.
5. The expandable cutter head of claim 3, wherein: the positioning assembly comprises a top surface positioning pin arranged on the bottom wall in the positioning groove, and a top surface positioning hole matched with the top surface positioning pin is formed in the bottom wall of the positioning plate.
6. The expandable cutter head of claim 3, wherein: a plurality of second through holes are formed in the blade side plate, and second screw holes matched with the second through holes are formed in the side wall of the cutter head main body.
7. The expandable cutter head of claim 3, wherein: the positioning assembly comprises a side positioning pin, and a first positioning hole and a second positioning hole which are matched with the side positioning pin are respectively formed in the cutter head main body and the blade side plate.
8. The expandable cutter head of claim 2, wherein: at least two reinforcing plates are arranged between the blade top plate and the blade side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120635317.8U CN214532796U (en) | 2021-03-29 | 2021-03-29 | Extension formula blade disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120635317.8U CN214532796U (en) | 2021-03-29 | 2021-03-29 | Extension formula blade disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214532796U true CN214532796U (en) | 2021-10-29 |
Family
ID=78266523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120635317.8U Active CN214532796U (en) | 2021-03-29 | 2021-03-29 | Extension formula blade disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214532796U (en) |
-
2021
- 2021-03-29 CN CN202120635317.8U patent/CN214532796U/en active Active
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