CN216912034U - Centrifugal casting device of bimetal composite hob cutter ring - Google Patents
Centrifugal casting device of bimetal composite hob cutter ring Download PDFInfo
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- CN216912034U CN216912034U CN202220430447.2U CN202220430447U CN216912034U CN 216912034 U CN216912034 U CN 216912034U CN 202220430447 U CN202220430447 U CN 202220430447U CN 216912034 U CN216912034 U CN 216912034U
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Abstract
The utility model discloses a centrifugal casting device of a bimetal composite hob ring, which comprises a casting part, a mould part, a rotating part and an adjusting part, wherein the casting part is arranged corresponding to the mould part, the rotating part is rotationally connected with the mould part, the rotating part is fixedly arranged on the adjusting part, the adjusting part drives the rotating part to linearly move so as to adjust the relative position between the casting part and the mould part, metal liquid is added into the mould part through the casting part, and the rotating part drives the mould part to rotate so as to realize the centrifugal casting molding of the hob ring in the mould part; the utility model has reasonable, simple and firm structural design and can be repeatedly utilized, the casting process of the bimetal composite hob ring with different composite structures can be realized, the composite structure of the bimetal hob ring can be designed according to the requirements of different tunnel constructions on the hardness and the toughness of the hob ring, the centrifugal casting process is completed, and thus the hob ring meeting the requirements of the hardness and the toughness is obtained, and the comprehensive working performance and the service life of the hob are improved.
Description
Technical Field
The utility model relates to the technical field of cutter ring processing, in particular to a centrifugal casting device for a bimetal composite hob cutter ring.
Background
With the planning and construction of high-speed railways and water diversion projects in China, Tunnel Boring Machines (TBMs) are more and more widely applied. The TBM mainly breaks rock by means of the extrusion action of the hob, rock conditions are complex and changeable in underground and tunnel engineering construction, the hob is subjected to the action of large torque, strong impact, sudden load and frictional wear in the rock breaking process, huge hob consumption is inevitably caused, and the phenomena of abrasion, abnormal abrasion, cracking, edge curling and the like easily occur to the hob ring at a main failure part. The hob is time-consuming and labor-consuming to overhaul and replace frequently, and even the service life of the cutter head and the main bearing can be reduced when the hob is seriously worn, so that the quality of the hob directly influences the construction period and the construction cost. Therefore, higher requirements are provided for the wear resistance and the impact toughness of the hob ring, and the problem of hob failure in the construction process can be effectively solved.
Through the search and discovery of relevant documents and data at home and abroad, the concept of the bimetal composite hob ring is provided by various colleges and research institutions at home and abroad at present. However, the existing bimetal composite is generally prepared by forming a composite layer on a substrate in a surfacing mode or pouring at high temperature, and the hob rings with different hardness and toughness requirements are difficult to process according to actual requirements.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defects, the technical scheme adopted by the utility model is that the centrifugal casting device for the bimetal composite hob ring comprises a casting part, a mould part, a rotating part and an adjusting part, wherein the casting part is arranged corresponding to the mould part, the rotating part is rotationally connected with the mould part, the rotating part is fixedly arranged on the adjusting part, the adjusting part drives the rotating part to move linearly so as to adjust the relative position between the casting part and the mould part, molten metal is added into the mould part through the casting part, and the rotating part drives the mould part to rotate so as to realize the centrifugal casting molding of the hob ring in the mould part.
The preferred, mould portion includes right-hand member lid, cutter ring mould, left end lid, the cutter ring mould sets up to the ring type, the right-hand member lid with the left end lid all sets up to the disc type, just the right-hand member lid with the left end lid is in respectively the both sides sealing connection of cutter ring mould, in order to form the shaping chamber that is used for the shaping cutter ring in the cutter ring mould, the casting portion corresponds the setting and is in on the right-hand member lid, the rotation portion with the transmission of left end lid is connected.
Preferably, the casting portion comprises a casting opening, a casting pipe and a casting nozzle, the casting pipe is arranged in an L shape, the casting opening and the casting nozzle are respectively arranged at two ends of the casting pipe, the casting nozzle is arranged in the molding cavity, and the casting opening is arranged outside the mold portion.
Preferably, the casting pipe is provided with an adjusting valve for controlling the opening and closing of the casting part.
Preferably, a through hole is formed in the axis position of the right end cover, the casting pipe is arranged in the through hole, and the casting pipe and the right end cover can rotate relatively.
Preferably, the rotating part comprises a motor and a motor base, an output shaft of the motor is fixedly arranged on an axis of the left end cover, the motor is fixedly arranged on the translation base through the motor base, and the translation base is connected with the base through the adjusting part.
Preferably, the regulating part comprises a translation guide rail and a translation guide rail groove, the translation guide rail is fixedly arranged on the translation seat, the translation guide rail groove is fixedly arranged on the base, the translation guide rail is connected with the translation guide rail groove in a matched manner, and the translation guide rail can move linearly along the translation guide rail groove.
Preferably, the number of the translation guide rails is two, and the two translation guide rails are arranged in parallel and symmetrically.
Preferably, the adjusting part further comprises a telescopic oil cylinder, the telescopic oil cylinder is fixedly arranged on the base, and a telescopic piston rod of the telescopic oil cylinder is fixedly connected with the translation seat.
Preferably, the pouring gate is provided with a first pouring cup and a second pouring cup, the pouring pipe is provided with a small pipe and a large pipe, the first pouring cup is arranged inside the second pouring cup, the small pipe is arranged inside the large pipe, the first pouring cup is communicated with the pouring nozzle through the small pipe, and the second pouring cup is communicated with the pouring nozzle through the large pipe.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has reasonable, simple and firm structural design and can be repeatedly utilized, the casting process of the bimetal composite hob ring with different composite structures can be realized, the composite structure of the bimetal hob ring can be designed according to the requirements of different tunnel constructions on the hardness and the toughness of the hob ring, the centrifugal casting process is completed, and thus the hob ring meeting the requirements of the hardness and the toughness is obtained, and the comprehensive working performance and the service life of the hob are improved.
Drawings
FIG. 1 is a schematic structural diagram of a centrifugal casting device for the bimetal composite hob ring;
FIG. 2 is a structural front view of the centrifugal casting device for the bimetal composite hob ring;
FIG. 3 is a partial cross-sectional view of the centrifugal casting apparatus for the bimetal composite hob ring;
FIG. 4 is a schematic structural view of a second embodiment of the casting part;
FIG. 5 is a schematic structural view of the first prepared cutter ring;
fig. 6 is a schematic structural view of the second cutter ring.
The figures in the drawings represent:
1-a casting gate; 2-a casting pipe; 3-a casting nozzle; 4-right end cap; 5-cutter ring mould; 6-a translation guide rail; 7-a telescopic oil cylinder; 8, a motor; 9-left end cap; 10-a motor base; 11-a translation seat; 12-translating the guide rail groove; 13-a base; 14-a telescopic piston rod; 15-adjusting valve; 101-a first casting cup; 102-a second casting cup; 201-tubule; 202-large tube; 161-a first high wear layer; 162-a transition layer; 163-first high toughness layer; 171-a second highly wear resistant layer; 172-second high toughness layer.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, fig. 1 is a schematic structural diagram of a centrifugal casting device for the bimetal composite hob ring;
the centrifugal casting device of the bimetal composite hob ring comprises a casting part, a mould part, a rotating part and an adjusting part, wherein the casting part is arranged corresponding to the mould part, the rotating part is rotationally connected with the mould part, the rotating part is fixedly arranged on the adjusting part, the adjusting part drives the rotating part to move linearly so as to adjust the relative position between the casting part and the mould part, metal liquid is added into the mould part through the casting part, and the mould part is driven to rotate through the rotating part so as to realize the centrifugal casting molding of the hob ring in the mould part.
The utility model has reasonable, simple and firm structural design and can be repeatedly utilized, the casting process of the bimetal composite hob ring with different composite structures can be realized, the composite structure of the bimetal hob ring can be designed according to the requirements of different tunnel constructions on the hardness and the toughness of the hob ring, the centrifugal casting process is completed, and thus the hob ring meeting the requirements of the hardness and the toughness is obtained, and the comprehensive working performance and the service life of the hob are improved.
The mould portion includes right-hand member lid 4, cutter ring mould 5, left end lid 9, cutter ring mould 5 sets up to the ring type, right-hand member lid 4 with left end lid 9 all sets up to the disc type, just right-hand member lid 4 with left end lid 9 is respectively in cutter ring mould 5's both sides sealing connection, thereby form the shaping chamber that is used for shaping cutter ring in the cutter ring mould 5, the casting portion corresponds the setting and is in on the right end lid 4, the rotation portion with the transmission of left end lid 9 is connected.
Generally, the inner wall of the cutter ring mold 5 is manufactured according to the outline of the hob cutter ring.
The casting part comprises a casting opening 1, a casting pipe 2 and a casting nozzle 3, the casting pipe 2 is arranged to be L-shaped, the casting opening 1 and the casting nozzle 3 are respectively arranged at two ends of the casting pipe 2, the casting nozzle 3 is arranged in the forming cavity, and the casting opening 1 is arranged outside the die part.
Preferably, the casting pipe 2 is provided with an adjusting valve 15 to control the opening and closing of the casting part and the flow rate of the molten metal.
Preferably, a through hole is arranged at the axial position of the right end cover 4, the casting pipe 2 is arranged in the through hole, and the casting pipe 2 and the right end cover 4 can rotate relatively.
Generally, the casting portion is fixed by a fixing member such as an external bracket, so as to ensure that the casting portion does not affect the rotation of the mold portion, and the specific position of the casting nozzle 3 in the molding cavity can be adjusted by the adjusting portion.
The rotating part comprises a motor 8 and a motor base 10, an output shaft of the motor 8 is fixedly arranged on an axis of the left end cover 9, the motor 8 is fixedly arranged on a translation seat 11 through the motor base 10, and the translation seat 11 is connected with a base 13 through the adjusting part.
The regulating part includes translation guide rail 6 and translation guide rail groove 12, translation guide rail 6 is fixed to be set up on the translation seat 11, translation guide rail groove 12 is fixed to be set up on the base 13, translation guide rail 6 with translation guide rail groove 12 cooperation is connected, just translation guide rail 6 can follow translation guide rail groove 12 rectilinear movement, thereby it is adjustable translation seat 11 with relative position between the base 13.
Generally, the translation guide rails 6 are arranged in parallel and symmetrically with 2, so as to ensure stable relative movement between the translation base 11 and the base 13.
The adjusting part further comprises a telescopic oil cylinder 7, the telescopic oil cylinder 7 is fixedly arranged on the base 13, a telescopic piston rod 14 of the telescopic oil cylinder 7 is fixedly connected with the translation seat 11, and power is supplied to the translation seat 11 and the base 13 through telescopic operation of the telescopic piston rod 14.
In this embodiment, a first prepared cutter ring 16 comprising a first high wear layer 161, a transition layer 162, and a first high toughness layer 163 may be cast.
A casting method of forming the first prepared cutter ring, comprising the steps of:
s1, respectively smelting molten metals made of high-wear-resistance alloy tool steel and high-toughness alloy structural steel;
s2, starting a motor to drive the cutter ring mold to rotate, wherein the rotating speed is adjustable;
s3, pouring molten metal of the alloy tool steel with high wear resistance into a casting opening, spraying the molten metal out of a casting nozzle through a casting pipe, and preparing a high-wear-resistance blade part by adjusting the position of a telescopic oil cylinder movable cutter ring mold;
s4, pouring the high-toughness alloy structural steel molten metal into a casting opening, spraying the molten metal out of a casting nozzle through a casting pipe, and preparing a high-toughness cutter body part by adjusting the position of a telescopic oil cylinder movable cutter ring mold;
and S5, taking out the rough blank of the bimetal composite hob ring after casting, and obtaining the wear-resistant and impact-resistant bimetal composite hob ring after a series of rough and fine processing and heat treatment processes, as shown in figure 5.
Example two
In the present embodiment, the casting gate 1 is provided with a first casting cup 101 and a second casting cup 102, the casting pipe 2 is provided with a small pipe 201 and a large pipe 202, the first casting cup 101 is arranged inside the second casting cup 102, the small pipe 201 is arranged inside the large pipe 202, the first casting cup 101 is communicated with the casting nozzle 3 through the small pipe 201, the second casting cup 102 is communicated with the casting nozzle 3 through the large pipe 202, similarly, the casting nozzle 3 is also provided with a double layer, and the regulating valve 15 can respectively control the molten metal flow rates in the small pipe 201 and the large pipe 202.
In this embodiment, a second prepared cutter ring may be cast, which includes a second high wear layer 171, a first high toughness layer 172. The casting tube and the casting nozzle are replaceable, the casting tube is a composite tube of a central small tube outer side large tube, the position of the nozzle is provided with a regulating valve, and cutter rings with different bimetal composite structures can be manufactured, and the method comprises the following steps:
a casting process for forming the second prepared cutter ring, comprising the steps of:
s1, respectively smelting molten metals made of high-wear-resistance alloy tool steel and high-toughness alloy structural steel;
s2, starting a motor to drive the cutter ring mold to rotate, wherein the rotating speed is adjustable;
s3, firstly, pouring the alloy tool steel molten metal with high wear resistance into a second casting cup, spraying the molten metal from a casting nozzle through a large pipe outside a casting pipe, and preparing a blade part with high wear resistance by adjusting the position of a telescopic oil cylinder movable cutter ring mold;
s4, spraying the high-toughness alloy structural steel metal liquid and the high-wear-resistance alloy tool steel metal liquid from the casting nozzle through the small pipe and the large pipe respectively, and controlling the proportion of the two metal liquids through a valve for adjusting the position of the casting nozzle to prepare a cutter body part with high wear resistance outside and high toughness inside;
and S5, taking out the rough blank of the bimetal composite hob ring after casting, and obtaining the wear-resistant and impact-resistant bimetal composite hob ring after a series of rough and fine processing and heat treatment processes, as shown in figure 6.
The foregoing is merely a preferred embodiment of the utility model, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a centrifugal casting device of compound hobbing cutter ring of bimetal, its characterized in that, includes casting portion, mould portion, rotation portion, regulation portion, the casting portion corresponds mould portion sets up, rotation portion with mould portion rotates the connection, rotation portion is fixed to be set up in the regulation portion, regulation portion drives thereby rotation portion rectilinear movement adjusts casting portion with relative position between the mould portion, through casting portion to add the metal liquid in the mould portion, and pass through rotation portion drives thereby mould portion rotates and realizes the cutter ring and is in centrifugal casting shaping in the mould portion.
2. The centrifugal casting device for the bimetal composite hob ring according to claim 1, wherein the mold part comprises a right end cover, a hob ring mold and a left end cover, the hob ring mold is arranged in a circular ring shape, the right end cover and the left end cover are both arranged in a circular disc shape, the right end cover and the left end cover are respectively connected with two sides of the hob ring mold in a sealing manner, so that a forming cavity for forming the hob ring is formed in the hob ring mold, the casting part is correspondingly arranged on the right end cover, and the rotating part is in transmission connection with the left end cover.
3. The centrifugal casting device for the bimetal composite hob ring according to claim 2, wherein the casting portion comprises a casting opening, a casting pipe and a casting nozzle, the casting pipe is arranged in an L shape, the casting opening and the casting nozzle are respectively arranged at two ends of the casting pipe, the casting nozzle is arranged in the forming cavity, and the casting opening is arranged outside the mold portion.
4. The centrifugal casting device for the bimetal composite hob ring according to claim 3, wherein the casting pipe is provided with a regulating valve for controlling the opening and closing of the casting part.
5. The centrifugal casting device for the bimetal composite hob ring according to claim 3, wherein a through hole is arranged at the axial position of the right end cover, the casting pipe is arranged in the through hole, and the casting pipe and the right end cover can rotate relatively.
6. The centrifugal casting device for the bimetal composite hob ring according to claim 5, wherein the rotating portion comprises a motor and a motor base, an output shaft of the motor is fixedly arranged on an axis of the left end cover, the motor is fixedly arranged on a translation seat through the motor base, and the translation seat is connected with the base through the adjusting portion.
7. The centrifugal casting device for the bimetal composite hob ring according to claim 6, wherein the adjusting portion includes a translation guide rail and a translation guide rail groove, the translation guide rail is fixedly disposed on the translation seat, the translation guide rail groove is fixedly disposed on the base, the translation guide rail is in fit connection with the translation guide rail groove, and the translation guide rail can linearly move along the translation guide rail groove.
8. The apparatus for centrifugal casting of a bimetal composite hob ring according to claim 7, wherein there are two said translation guide rails, and said two translation guide rails are arranged in parallel and symmetrically.
9. The centrifugal casting device for the bimetal composite hob ring according to claim 7, wherein the adjusting portion further comprises a telescopic oil cylinder, the telescopic oil cylinder is fixedly arranged on the base, and a telescopic piston rod of the telescopic oil cylinder is fixedly connected with the translation seat.
10. The centrifugal casting device for the bimetal composite hob ring according to claim 4, wherein the casting opening is provided with a first casting cup and a second casting cup, the casting pipe is provided with a small pipe and a large pipe, the first casting cup is arranged inside the second casting cup, the small pipe is arranged inside the large pipe, the first casting cup is communicated with the casting nozzle through the small pipe, and the second casting cup is communicated with the casting nozzle through the large pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220430447.2U CN216912034U (en) | 2022-02-28 | 2022-02-28 | Centrifugal casting device of bimetal composite hob cutter ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220430447.2U CN216912034U (en) | 2022-02-28 | 2022-02-28 | Centrifugal casting device of bimetal composite hob cutter ring |
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| CN216912034U true CN216912034U (en) | 2022-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846610A (en) * | 2023-01-04 | 2023-03-28 | 杭州富生电器有限公司 | Full-automatic six-station rotor core centrifugal casting production line |
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- 2022-02-28 CN CN202220430447.2U patent/CN216912034U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846610A (en) * | 2023-01-04 | 2023-03-28 | 杭州富生电器有限公司 | Full-automatic six-station rotor core centrifugal casting production line |
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