CN103982531A - Shaft pin of cone crusher pressure-maintaining cylinder and cylinder protecting method - Google Patents
Shaft pin of cone crusher pressure-maintaining cylinder and cylinder protecting method Download PDFInfo
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- CN103982531A CN103982531A CN201410133699.9A CN201410133699A CN103982531A CN 103982531 A CN103982531 A CN 103982531A CN 201410133699 A CN201410133699 A CN 201410133699A CN 103982531 A CN103982531 A CN 103982531A
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- pivot pin
- cylinder
- hanger
- pressurize
- gyratory crusher
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Abstract
The invention relates to a shaft pin of a cone crusher pressure-maintaining cylinder and a cylinder protecting method. With the shaft pin and the cylinder protecting method, damage caused to cone crusher shell lifting lugs, pressure-maintaining cylinder lifting lugs and pressure-maintaining cylinders when a crushing and discharging outlet of a large-sized cone crusher passes through iron with thickness exceeding the maximum opening degree of the crushing and discharging outlet is radically avoided. The shaft pin of the cone crusher pressure-maintaining cylinder comprises a shaft pin, wherein the tail end of the shaft pin is provided with a cotter through hole, and the shaft pin is prepared from gray iron. The invention has the following advantages: 1, damage caused to the cone crusher pressure-maintaining cylinder lifting lugs and the pressure-maintaining cylinders when the discharging outlet of the cone crusher passes through iron with thickness exceeding the maximum opening degree of the discharging outlet is radically avoided; and 2, replacement of the gray iron shaft pin becomes normal-state simple replacement.
Description
Technical field
The present invention relates to one can fundamentally avoid large-scale cone crushing discharge gate in the time crossing iron thickness and exceed discharge gate maximum open and measure, gyratory crusher pressurize cylinder pivot pin to gyratory crusher machine casing hanger, pressurize cylinder hanger pivot pin and pressurize damage that cylinder causes and guarantor's cylinder method, belong to large-scale gyratory crusher component assembly and manufacture field.
Background technique
At present in the design of gyratory crusher, be positioned at hanger on many pressurize cylinder lower end hangers of gyratory crusher 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 gyratory crusher is crossed iron (running into iron block), 60 millimeters of ranges on upper spider, discharge gate increases; In the time running into bulk iron (thickness of iron block exceeds 60 millimeters), pressurize cylinder Overstroke (being machinery tension), due to high cannot the breaking of mechanical strength of carbon steel pivot pin, cause pivot pin that upper spider, pressurize cylinder, lower bearing bracket and hanger are drawn to distortion or damage, for thickness, at several centimetres of hangers, once draw, distortion is very difficult repairs.
Summary of the invention
Purpose of design: keep away the deficiency in many background techniquies, design one can fundamentally avoid large-scale cone crushing discharge gate in the time crossing iron thickness and exceed discharge gate maximum open and measure, the gyratory crusher pressurize cylinder pivot pin to gyratory crusher machine casing hanger, pressurize cylinder hanger pivot pin and pressurize damage that cylinder causes and guarantor's cylinder method.
Design proposal: 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 characteristics of the present invention.The object of doing is like this: due to grey cast iron carbon 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 cone crushing stone 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 surface friction drag between hanger and gray iron pivot pin.2, the axial region hangers bearing part hoop of gray iron pivot pin has the design of overload snap slot, is two of technical characteristics of the present invention.The object of design is like this: because the hoop of the axial region hangers bearing 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 bearing part two ends are pulled off along annular snap slot; both protected equipment, and be convenient to again change.
Technological scheme 1: a kind of gyratory crusher pressurize cylinder pivot pin, comprise that the end of pivot pin and pivot pin is shaped with cotter pin through hole, described pivot pin adopts gray iron to make.
Technological scheme 2: a kind of guarantor's cylinder method of gyratory crusher pressurize cylinder pivot pin, be positioned at hanger on many pressurize cylinder lower end hangers of gyratory crusher surrounding and lower bearing bracket and adopt gray iron pivot pin pin joint, pressurize cylinder upper end and upper spider link together, in the time that the discharge gate of cone crushing stone 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 gyratory crusher surrounding and lower bearing bracket, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
The present invention compared with background technique, the one, the damage when not only fundamentally having solved gyratory crusher discharge port and crossing iron and exceed the maximum the first transaction of a day's business stroke of discharge port, gyratory crusher 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 gyratory crusher pressurize cylinder pivot pin.
Fig. 2 is the structural representation of Fig. 1 for gyratory crusher.
Embodiment
Embodiment 1: with reference to attached Fig. 1 and 2.A kind of gyratory crusher pressurize cylinder pivot pin, comprises that the end of pivot pin 1 and pivot pin 1 is shaped with cotter pin through hole 4, and described pivot pin 1 adopts gray iron to make.The axial region hangers bearing 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 gray cast iron that the minimum tensile strength of coupon diameter: 30mm is 300MPa.
Embodiment 2: on embodiment 1 basis, the axial region hangers bearing 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 bearing part 3 of described pivot pin 1 is 50 millimeters, the diameter of overload snap slot 2 bottoms is 44 millimeters.
Embodiment 3: on embodiment 1 basis, a kind of guarantor's cylinder method of gyratory crusher pressurize cylinder pivot pin, be positioned at hanger on many pressurize cylinders 6 lower end hangers of gyratory crusher surrounding and lower bearing bracket 5 and adopt gray iron pivot pin 1 pin joint, pressurize cylinder upper end and upper spider 7 link together, in the time that the discharge gate of cone crushing stone 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 gyratory crusher 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 embodiment 1 and 2 basis, a kind of guarantor's cylinder method of gyratory crusher pressurize cylinder pivot pin, be positioned at hanger on many pressurize cylinders 6 lower end hangers of gyratory crusher surrounding and lower bearing bracket 5 and adopt gray iron pivot pin 1 pin joint, pressurize cylinder upper end and upper spider 7 link together, the axial region hangers bearing part 3 both sides hoops of gray iron pivot pin have two overload snap slots 2, in the time that the discharge gate of cone crushing stone 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 gyratory crusher 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 gyratory crusher pressurize cylinder pivot pin, comprises that the end of pivot pin (1) and pivot pin (1) is shaped with cotter pin through hole (4), it is characterized in that: described pivot pin (1) adopts gray iron to make.
2. gyratory crusher pressurize cylinder pivot pin according to claim 1, is characterized in that: the axial region hangers bearing part (3) of described gray iron pivot pin has one or two hoop overload snap slots (2).
3. gyratory crusher pressurize cylinder pivot pin according to claim 2, is characterized in that: axial region hangers bearing part (3) the both sides hoop of described gray iron pivot pin has overload snap slot (2).
4. gyratory crusher 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 gyratory crusher pressurize cylinder pivot pin, it is characterized in that: many pressurize cylinders (6) the lower end hanger and the upper hanger of lower bearing bracket (5) that are positioned at gyratory crusher surrounding adopt gray iron pivot pin (1) pin joint, pressurize cylinder upper end and upper spider (7) link together, in the time that the discharge gate of cone crushing stone 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 gyratory crusher surrounding are sheared to cut-out, guarantee that hanger is indeformable, pressurize cylinder can not be haled damage.
6. guarantor's cylinder method of gyratory crusher pressurize cylinder pivot pin according to claim 5, it is characterized in that: many pressurize cylinders (6) the lower end hanger and the upper hanger of lower bearing bracket (5) that are positioned at gyratory crusher surrounding adopt gray iron pivot pin (1) pin joint, pressurize cylinder upper end and upper spider (7) link together, axial region hangers bearing 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 cone crushing stone 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 gyratory crusher 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133699.9A CN103982531B (en) | 2014-04-04 | 2014-04-04 | Gyratory crusher pressurize cylinder shaft pin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410133699.9A CN103982531B (en) | 2014-04-04 | 2014-04-04 | Gyratory crusher pressurize cylinder shaft pin |
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| Publication Number | Publication Date |
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| CN103982531A true CN103982531A (en) | 2014-08-13 |
| CN103982531B CN103982531B (en) | 2016-08-17 |
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| CN201410133699.9A Active CN103982531B (en) | 2014-04-04 | 2014-04-04 | Gyratory crusher pressurize cylinder shaft pin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977857A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method |
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| JPH10296315A (en) * | 1997-04-28 | 1998-11-10 | Kawasaki Heavy Ind Ltd | Guide device for rolling material |
| US20020079630A1 (en) * | 2000-07-21 | 2002-06-27 | Lord Corporation | Vibration isolation device with load dependent stiffness |
| CN2578526Y (en) * | 2002-10-21 | 2003-10-08 | 煤炭科学研究总院太原分院 | Crusher of delivery breaker |
| CN102357371A (en) * | 2011-10-02 | 2012-02-22 | 长兴县长虹路桥矿山机械设备有限公司 | Multi-cylinder hydraulic antifriction bearing taper crusher |
| CN103977857A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method |
| CN203822837U (en) * | 2014-04-04 | 2014-09-10 | 浙江双金机械集团股份有限公司 | Shaft pin of pressure retaining cylinder of cone crusher |
| CN204074133U (en) * | 2014-04-04 | 2015-01-07 | 浙江双金机械集团股份有限公司 | Circular cone sand making machine pressurize cylinder pivot pin |
-
2014
- 2014-04-04 CN CN201410133699.9A patent/CN103982531B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10296315A (en) * | 1997-04-28 | 1998-11-10 | Kawasaki Heavy Ind Ltd | Guide device for rolling material |
| US20020079630A1 (en) * | 2000-07-21 | 2002-06-27 | Lord Corporation | Vibration isolation device with load dependent stiffness |
| CN2578526Y (en) * | 2002-10-21 | 2003-10-08 | 煤炭科学研究总院太原分院 | Crusher of delivery breaker |
| CN102357371A (en) * | 2011-10-02 | 2012-02-22 | 长兴县长虹路桥矿山机械设备有限公司 | Multi-cylinder hydraulic antifriction bearing taper crusher |
| CN103977857A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method |
| CN203822837U (en) * | 2014-04-04 | 2014-09-10 | 浙江双金机械集团股份有限公司 | Shaft pin of pressure retaining cylinder of cone crusher |
| CN204074133U (en) * | 2014-04-04 | 2015-01-07 | 浙江双金机械集团股份有限公司 | Circular cone sand making machine pressurize cylinder pivot pin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977857A (en) * | 2014-04-04 | 2014-08-13 | 浙江双金机械集团股份有限公司 | Cone sand maker pressure retaining cylinder shaft pin and cylinder retaining method |
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| CN103982531B (en) | 2016-08-17 |
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