CN103977857A - Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method - Google Patents
Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method Download PDFInfo
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- CN103977857A CN103977857A CN201410133697.XA CN201410133697A CN103977857A CN 103977857 A CN103977857 A CN 103977857A CN 201410133697 A CN201410133697 A CN 201410133697A CN 103977857 A CN103977857 A CN 103977857A
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- pivot pin
- hanger
- sand making
- circular cone
- making machine
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Abstract
The invention relates to a cone sand maker pressure retaining cylinder shaft pin capable of fundamentally avoiding the damages to a cone maker shell hanger, a pressure retaining hanger shaft pin and a pressure retaining cylinder when the thickness of iron passing through the made sand discharging hole of a large cone sand maker exceeds the maximum opening value of the discharging hole, and a pressure retaining method. The cone sand maker pressure retaining cylinder shaft pin comprises a shaft pin, the end of the shaft pin is provided with a cotter through hole, and the shaft pin is made by adopting gray iron. The damages to the cone sand maker pressure retaining cylinder hanger and the pressure retaining cylinder when the thickness of iron passing through the discharging hole of the cone sand maker exceeds the maximum opening stroke of the discharging hole are fundamentally avoided; and the replacement of the gray iron shaft pin changes to normal simple replacement.
Description
Technical field
The present invention relates to one can fundamentally avoid large-scale conical sand making mechanism sand discharge gate in the time crossing iron thickness and exceed discharge gate maximum open and measure, circular cone sand making machine pressurize cylinder pivot pin to circular cone sand making machine machine casing hanger, pressurize cylinder hanger pivot pin and pressurize damage that cylinder causes and guarantor's cylinder method, belong to large-scale circular cone sand making machine component assembly and manufacture field.
Background technology
At present in the design of circular cone sand making machine, be positioned at hanger on many pressurize cylinder lower end hangers of circular cone sand making machine surrounding and lower bearing bracket and adopt carbon steel pivot pin pin joint, pressurize cylinder upper end and upper spider link together, in the time that circular cone sand making machine is crossed iron (running into iron block), range number of elements millimeter on upper spider, its discharge gate increases to several millimeters, in the time running into the thickness of iron block and exceed the maximum discharging bore of discharge gate, pressurize cylinder Overstroke (being machinery tension), due to high cannot the breaking of mechanical strength of carbon steel pivot pin, cause pivot pin by upper spider, pressurize cylinder, lower bearing bracket and hanger draw distortion or damage, for thickness at several centimetres of hangers, once draw distortion to be difficult to repair.
Summary of the invention
Purpose of design: keep away the weak point in many background technologies, design one can fundamentally avoid large-scale conical sand making mechanism sand discharge gate in the time crossing iron thickness and exceed discharge gate maximum open and measure, the circular cone sand making machine pressurize cylinder pivot pin to circular cone sand making machine machine casing hanger, pressurize cylinder hanger pivot pin and pressurize damage that cylinder causes and guarantor's cylinder method.
Design: in order to realize above-mentioned purpose of design.1, the present invention adopts gray iron to make the design of pivot pin, is one of technical characterictic of the present invention.The object of doing is like this: due to grey cast-iron phosphorus content higher (2.7%～4.0%), carbon mainly exists with flake graphite form, and metallographic structure is ferrite+flake graphite+pearly-lustre body heat, and therefore gray iron does not have yield strength.The application utilizes this feature of gray iron to make pivot pin just, in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum open footpath, because the pivot pin that adopts gray iron to make does not have yield strength, therefore the pivot pin that the contrary shearing force each other that pressurize cylinder lower end hanger and lower bearing bracket hanger form gray iron pivot pin can be made gray iron cuts off, guarantee that the hanger in the upper and lower frame of pressurize cylinder can not be pulled out of shape, guaranteed that equipment can be not damaged; Secondly because the graphite in gray iron has good greasy property, it can play hanger lubrication, reduces the frictional resistance between hanger and gray iron pivot pin.2, the axial region hangers supporting part hoop of gray iron pivot pin has the design of overload snap slot, is two of technical characterictic of the present invention.The object of design is like this: because the hoop of the axial region hangers supporting part at gray iron pivot pin has overload snap slot; this annular overload power that slot part carries that fractures is less than other pivot pin portion; therefore when the hanger of the pressurize cylinder lower end inside and outside being positioned at annular overload tank is haled gray iron pivot pin because of overload; under the shear action of gray iron pivot pin hanger on pressurize cylinder lower end hanger and lower bearing bracket; its gray iron pivot pin hangers supporting part two ends are pulled off along annular snap slot; both protected equipment, and be convenient to again change.
Technical scheme 1: a kind of circular cone sand making machine pressurize cylinder pivot pin, comprise that the end of pivot pin and pivot pin is shaped with split pin through hole, described pivot pin adopts gray iron to make.
Technical scheme 2: a kind of guarantor's cylinder method of circular cone sand making machine pressurize cylinder pivot pin, be arranged in hanger on many pressurize cylinder lower ends of circular cone sand making machine surrounding and be arranged in lower hanger on lower bearing bracket and peg graft mate and adopts rolling of gray iron pivot pin pin joint and upper spider to determine rolling of cover and lower bearing bracket and move and overlap formation sand discharge gate processed, in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum caliber, iron block in the discharge gate being made up of upper spider and lower bearing bracket forces upper spider to move upward, lower bearing bracket moves downward formation shear action, and then be sheared cut-out by being arranged in hanger gray iron pivot pin on many pressurize cylinder lower end hangers of circular cone sand making machine surrounding and lower bearing bracket, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
The present invention compared with background technology, the one, the damage when not only fundamentally having solved circular cone sand making machine discharging opening and crossing iron and exceed the maximum the first transaction of a day's business stroke of discharging opening, circular cone sand making machine pressurize cylinder hanger and pressurize cylinder having been caused; The 2nd, make the replacing of gray iron pivot pin become providing for simple replacement of of normality.
Brief description of the drawings
Fig. 1 is the structural representation of circular cone sand making machine pressurize cylinder pivot pin.
Fig. 2 is the structural representation of Fig. 1 for circular cone sand making machine.
Detailed description of the invention
Embodiment 1: with reference to attached Fig. 1 and 2.A kind of circular cone sand making machine pressurize cylinder pivot pin, comprises that the end of pivot pin 1 and pivot pin 1 is shaped with split pin through hole 4, and described pivot pin 1 adopts gray iron to make.The axial region hangers supporting part 3 of described gray iron pivot pin has pivot pin 1 described in or two hoops overload snap slots 2 and adopts HT300 gray iron.Material trademark: HT300, refers to the casting pig that the minimum tensile strength of coupon diameter: 30mm is 300MPa.
Embodiment 2: on the basis of embodiment 1, the axial region hangers supporting part 3 both sides hoops of described gray iron pivot pin have two overload snap slots 2.When the diameter of the axial region hangers supporting part 3 of described pivot pin 1 is 50 millimeters, the diameter of overload snap slot 2 bottoms is 44 millimeters.
Embodiment 3: on the basis of embodiment 1, a kind of guarantor's cylinder method of circular cone sand making machine pressurize cylinder pivot pin, be arranged in hanger 8 on many pressurize cylinder 6 lower ends of circular cone sand making machine surrounding and be arranged in lower hanger 9 on lower bearing bracket 5 and peg graft mate and adopts rolling of gray iron pivot pin 1 pin joint and upper spider to determine rolling of cover and lower bearing bracket and move and overlap formation sand discharge gate processed, in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum caliber, iron block in the discharge gate being made up of upper spider 7 and lower bearing bracket 5 forces upper spider 7 to move upward, lower bearing bracket 5 moves downward formation shear action, and then be sheared cut-out by being arranged in hanger gray iron pivot pin 1 on many pressurize cylinders 6 lower end hangers of circular cone sand making machine surrounding and lower bearing bracket 5, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.The bearing capacity that hanger and pressurize cylinder (pressurize oil cylinder) 6 set is greater than the power that gray iron pivot pin is broken by (shearing).
Embodiment 4: on the basis of embodiment 1 and 2, a kind of guarantor's cylinder method of circular cone sand making machine pressurize cylinder pivot pin, be arranged in hanger 8 on many pressurize cylinder 6 lower ends of circular cone sand making machine surrounding and be arranged in lower hanger 9 on lower bearing bracket 5 and peg graft mate and adopts rolling of gray iron pivot pin 1 pin joint and upper spider to determine rolling of cover and lower bearing bracket and move and overlap formation sand discharge gate processed, the axial region hangers supporting part 3 both sides hoops of gray iron pivot pin have two overload snap slots 2, in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum caliber, iron block in the discharge gate being made up of upper spider 7 and lower bearing bracket 5 forces upper spider 7 to move upward, lower bearing bracket 5 moves downward formation shear action, and then force and be arranged in hanger gray iron pivot pin 1 on many pressurize cylinders 6 lower end hangers of circular cone sand making machine surrounding and lower bearing bracket 5 and cut off by THE ADIABATIC SHEAR IN by overload snap slot 2, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of restriction to mentality of designing of the present invention; any combination, increase or amendment that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.
Claims (6)
1. a circular cone sand making machine pressurize cylinder pivot pin, comprises that the end of pivot pin (1) and pivot pin (1) is shaped with split pin through hole (4), it is characterized in that: described pivot pin (1) adopts gray iron to make.
2. circular cone sand making machine pressurize cylinder pivot pin according to claim 1, is characterized in that: the axial region hangers supporting part (3) of described gray iron pivot pin has one or two hoop overload snap slots (2).
3. circular cone sand making machine pressurize cylinder pivot pin according to claim 2, is characterized in that: axial region hangers supporting part (3) the both sides hoop of described gray iron pivot pin has overload snap slot (2).
4. circular cone sand making machine pressurize cylinder pivot pin according to claim 1, is characterized in that: described pivot pin (1) adopts HT300 gray iron.
5. guarantor's cylinder method of a circular cone sand making machine pressurize cylinder pivot pin, it is characterized in that: be arranged in hanger (8) on many pressurize cylinders (6) lower end of circular cone sand making machine surrounding and be arranged in lower hanger (9) on lower bearing bracket (5) and peg graft mate and adopts rolling of gray iron pivot pin (1) pin joint and upper spider to determine rolling of cover and lower bearing bracket and move and overlap formation sand discharge gate processed, in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum caliber, iron block in the discharge gate being made up of upper spider (7) and lower bearing bracket (5) forces upper spider (7) to move upward, lower bearing bracket (5) moves downward formation shear action, and then many pressurize cylinders (6) the lower end hanger and the upper hanger gray iron pivot pin (1) of lower bearing bracket (5) that are arranged in circular cone sand making machine surrounding are sheared to cut-out, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
6. guarantor's cylinder method of circular cone sand making machine pressurize cylinder pivot pin according to claim 5, it is characterized in that: be arranged in hanger (8) on many pressurize cylinders (6) lower end of circular cone sand making machine surrounding and be arranged in lower hanger (9) on lower bearing bracket (5) and peg graft mate and adopts rolling of gray iron pivot pin (1) pin joint and upper spider to determine rolling of cover and lower bearing bracket and move and overlap formation sand discharge gate processed, axial region hangers supporting part (3) the both sides hoop of gray iron pivot pin has two overload snap slots (2), in the time that the discharge gate of conical sand making mechanism sand runs into the iron block that exceeds discharge gate maximum caliber, iron block in the discharge gate being made up of upper spider (7) and lower bearing bracket (5) forces upper spider (7) to move upward, lower bearing bracket (5) moves downward formation shear action, and then force many pressurize cylinders (6) the lower end hanger and the upper hanger gray iron pivot pin (1) of lower bearing bracket (5) that are arranged in circular cone sand making machine surrounding to be cut off by THE ADIABATIC SHEAR IN by overload snap slot (2), guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133697.XA CN103977857B (en) | 2014-04-04 | 2014-04-04 | Circular cone sand making machine pressurize cylinder shaft pin and guarantor's cylinder method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133697.XA CN103977857B (en) | 2014-04-04 | 2014-04-04 | Circular cone sand making machine pressurize cylinder shaft pin and guarantor's cylinder method |
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| CN103977857A true CN103977857A (en) | 2014-08-13 |
| CN103977857B CN103977857B (en) | 2016-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103977858A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Large cone sand maker having automatic protection function, and automatic protection method |
| CN103982531A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Shaft pin of cone crusher pressure-maintaining cylinder and cylinder protecting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977858A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Large cone sand maker having automatic protection function, and automatic protection method |
| CN103982531A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Shaft pin of cone crusher pressure-maintaining cylinder and cylinder protecting method |
| CN103977858B (en) * | 2014-04-04 | 2016-07-13 | 浙江双金机械集团股份有限公司 | There is large-scale circular cone sand making machine and the self-insurance method of automatic protection functions |
| CN103982531B (en) * | 2014-04-04 | 2016-08-17 | 浙江双金机械集团股份有限公司 | Gyratory crusher pressurize cylinder shaft pin |
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| CN103977857B (en) | 2016-12-07 |
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