CN109079475B - Method for assembling main shaft of multi-cylinder hydraulic cone crusher - Google Patents
Method for assembling main shaft of multi-cylinder hydraulic cone crusher Download PDFInfo
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- CN109079475B CN109079475B CN201811022665.7A CN201811022665A CN109079475B CN 109079475 B CN109079475 B CN 109079475B CN 201811022665 A CN201811022665 A CN 201811022665A CN 109079475 B CN109079475 B CN 109079475B
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- main shaft
- rack
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- positioning tool
- cone crusher
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
Abstract
The invention belongs to the technical field of cone crushers, and relates to a method for assembling a main shaft of a multi-cylinder hydraulic cone crusher. The main shaft is assembled in the hole of the frame by using the pressure provided by the release cylinder of the device without using a hydraulic press or the traditional assembly process such as liquid nitrogen cooling, and the like, so that the operation is simple, convenient, safe and reliable.
Description
Technical Field
The invention relates to a main shaft assembling method of a multi-cylinder hydraulic cone crusher, and belongs to the technical field of cone crushers.
Background
The multi-cylinder hydraulic cone crusher is widely applied to the metal mine metallurgy industry, the building industry, the cement industry, the sand and stone industry and the like, and plays an important role in nuclear power, expressways, airports, mines and other projects. In recent years, due to market changes and demands, both users and manufacturers of multi-cylinder hydraulic cone crushers have great interest in domestic multi-cylinder hydraulic cone crushers. The multi-cylinder hydraulic cone crusher has become a machine type which is focused in the current crusher industry.
In 1981, Nordberg company developed an energetic Omnicon cone crusher, aiming at improving the production capacity of the crusher in the volume space of the original Symons cone crusher, the device firstly separates a movable cone from a main shaft, thickens and fixes the main shaft, and only the movable cone does rotary swing motion. After about 10 years of research and improvement on Omnicon, the company Nordberg introduced the HP multi-cylinder hydraulic cone crusher.
The multi-cylinder hydraulic cone crusher is firstly used in large scale in China, and is in the artificial stone project of the three gorges in 1996, and therefore, the multi-cylinder hydraulic cone crusher is gradually applied to the domestic large-scale mine industry and the sand and stone aggregate industry. In 2001, the first multi-cylinder hydraulic cone crusher in China shipped from Shenyang. In recent years, with the demand of rapid development of domestic economy and the improvement of machining level, manufacturers for producing multi-cylinder hydraulic cone crushers are gradually increased in China.
The multi-cylinder hydraulic cone crusher is a typical crushing device for medium crushing and fine crushing of hard materials, adopts a 'lamination crushing' principle, improves the yield of primary crushing, and is simpler and more convenient to maintain and lower in operation cost. The structure strength is improved by adopting measures of separating the movable cone from the main shaft, thickening the main shaft and fixing the main shaft, only making the movable cone perform rotary swing motion and the like.
The main shaft of the multi-cylinder hydraulic cone crusher is assembled and fixed on the frame, so that the main shaft and the frame are required to be matched with each other in a large interference range, and the stability of the main shaft during production and operation of the crusher can be ensured. Due to the large interference, the assembly of the main shaft and the frame of the multi-cylinder hydraulic cone crusher usually adopts a press-fitting process, namely the main shaft is pressed into a frame hole by an oil press. Or a cold-loading process is adopted, namely the main shaft is put into a liquid nitrogen refrigerator for freezing, and the main shaft is assembled in the hole of the frame after being cooled to a set temperature. And a cold and hot assembly process is also adopted, namely the spindle is frozen by using dry ice, but the dry ice is not enough to cool the spindle to an assembly size, so that the position of the mounting hole of the rack is heated, and the frozen spindle is assembled into the mounting hole of the rack after the spindle is heated to the required temperature.
The manufacturers for producing multi-cylinder hydraulic cone crushers are increasing in China, and many manufacturers do not have oil presses capable of pressing the main shaft into the machine frame. Both a large oil press and a liquid nitrogen refrigerator have high acquisition and supply costs, and many manufacturers are reluctant to purchase the large oil press and the liquid nitrogen refrigerator, and adopt external cooperation pressing and cold and hot pressing. The external cooperation press fitting cost is high, the period is long, the cost of cold and hot fitting is high, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a method for assembling a main shaft of a multi-cylinder hydraulic cone crusher, which aims to solve the problem of difficult assembly of the main shaft of the multi-cylinder hydraulic cone crusher in the prior art.
The technical scheme adopted by the invention is as follows: a main shaft assembling method of a multi-cylinder hydraulic cone crusher comprises the steps that a rack is supported and fixed through a mounting support, a tension force is applied to an adjusting ring through a release oil cylinder on the rack, then a pressure is applied to a pressing die through the adjusting ring, the main shaft is pressed into a main shaft mounting hole of the rack through the pressing die, a positioning tool is arranged right below the main shaft mounting hole of the rack, and the positioning tool is provided with a measuring hole used for measuring the pressing depth of the main shaft.
Further preferably, the specific steps are as follows:
the method comprises the following steps: placing a positioning tool at the central position of the mounting bracket, hoisting the rack onto the mounting bracket, ensuring that the bottom surface of the rack 1 is attached to the positioning tool, and fixing the rack and the mounting bracket by using bolts;
step two: a main shaft is hoisted and placed in a main shaft mounting hole of the frame, so that the vertical state is ensured;
step three: sleeving a pressing die on the main shaft, assembling an adjusting ring on the frame, and screwing a nut at the upper end of the release oil cylinder to a position attached to the adjusting ring;
step four: connecting a release oil cylinder pipeline with a hydraulic oil station, and connecting a release oil cylinder to the hydraulic oil station;
step five: a control device of the hydraulic oil station is connected;
step six: and starting the hydraulic oil station to pump hydraulic oil into the release oil cylinder, and pressing the main shaft into the main shaft mounting hole of the frame.
Step seven: the pressing-in displacement of the main shaft is controlled through a positioning tool, the distance F from the lower end face of the main shaft to the lower end face of a measuring hole is measured through the measuring hole in the positioning tool by a depth gauge, and whether the main shaft is connected with the positioning tool or not is judged, namely whether the main shaft is assembled in place or not is judged;
step eight: maintaining the pressure for a certain time, and finishing the installation of the main shaft.
Preferably, in the seventh step, the positioning tool is composed of a base, a positioning plate and an adjusting pad, the adjusting pad is padded between the positioning plate and the base, the positioning plate and the base are fixed together through a bolt, and the positioning tool is provided with a measuring hole penetrating through the base and the positioning plate; according to the interference magnitude of the main shaft and the rack, the depth A of the main shaft needing to be pressed in is calculated, the distance D from the lower end face of the main shaft to the bottom face of the rack or the distance D from the lower end face of the main shaft after being pressed to the bottom face of the rack is measured and calculated, the distance B from the matching surface of the pressing die and the adjusting ring to the highest end face of the rack is greater than the depth A of the main shaft needing to be pressed in, the positioning tool ensures that the distance C from the upper end face of the positioning plate to the upper end face of the base is equal to the distance D from the lower end face of the main shaft to the bottom face of the rack through replacing the adjusting pad, the depth A of the main shaft needing; and in the pressing process, when the distance F from the lower end face of the main shaft to the lower end face of the measuring hole is equal to the depth E of the measuring hole, the main shaft is pressed in place.
Further preferably, the mounting bracket adopts four feet to support the rack upwards, and the mounting bracket adopts a bolt to be connected with the rack.
Preferably, the mounting bracket is composed of a flat plate, supporting legs, channel steel and reinforcing ribs, the four supporting legs are welded on the flat plate at the bottom, and the four supporting legs are reinforced by the channel steel and the reinforcing ribs.
Preferably, the pressing die is of a circular structure, so that pressure is uniformly distributed, and the pressing die is provided with a main shaft sleeve hole.
The invention has the beneficial effects that: the main shaft is assembled in the hole of the frame by using the pressure provided by the release oil cylinder of the equipment without using an oil press or the traditional assembly process of liquid nitrogen cooling and the like and special equipment such as the oil press, and the main shaft is low in cost, high in efficiency, simple to operate, safe and reliable.
Description of the drawings:
fig. 1 is an assembly schematic of the present invention.
Fig. 2 is a schematic view before pressing.
Fig. 3 is a schematic view of the structure after pressing.
Fig. 4 is a schematic view of a mounting bracket structure.
Fig. 5 is a schematic structural view of the positioning tool.
Fig. 6 is a sectional view of the positioning tool.
Fig. 7 is a schematic view (oblique bottom view) of the stamper structure.
Fig. 8 is a schematic view of a stamper structure (oblique depression).
In the figure: 1. the device comprises a rack, 2. a positioning tool, 3. a mounting bracket, 4. a release oil cylinder, 5. a hydraulic oil station, 6. an adjusting ring, 7. an electric control and manual operation box, 8. a pressing die, 9. a main shaft, 21. a base, 22. a positioning plate, 23. an adjusting pad, 24. a measuring hole, 31. a flat plate, 32. a supporting leg, 33. a channel steel, 34. a reinforcing rib and 81. a main shaft sleeve hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a method for assembling a main shaft of a multi-cylinder hydraulic cone crusher mainly comprises a rack 1, a positioning tool 2, a mounting bracket 3, a release oil cylinder 4, a hydraulic station 5, an adjusting ring 6, an electric control and manual operation box 7, a pressing die 8 and a main shaft 9. The structure of the mounting bracket 3 is as shown in fig. 4, the four feet are used for supporting the machine frame upwards, and the mounting bracket 3 is connected with the machine frame 1 through bolts. Four supporting feet 32 are welded on the bottom flat plate 31, and the four supporting feet 32 are reinforced by channel steel 33 and reinforcing ribs 34. The whole mounting bracket 3 is formed by welding. As shown in fig. 5 and 6, the positioning tool 2 is composed of a base 21, a positioning plate 22, and an adjusting pad 23, the adjusting pad 23 is disposed between the positioning plate 22 and the base 21, the positioning plate 22 and the base 21 are fixed together by bolts, and the positioning tool 2 is provided with a measuring hole 24 penetrating through the base 21 and the positioning plate 22. As shown in fig. 7 and 8, the pressing die 8 has a circular structure to ensure uniform pressure distribution, and the pressing die 8 is provided with a spindle engaging hole 81. When the main shaft is assembled, the pressing die 8 and the main shaft 9 are in a sleeved relation, the main shaft 9 is accurately positioned, and the main shaft 9 and the pressing die 8 are ensured to be in a vertical relation. The whole pressing die 8 is formed by casting or welding and then processing.
The specific operation is as follows:
1. before pressing: as shown in fig. 2, according to the interference magnitude between the main shaft 9 and the frame 1, the depth a of the main shaft 9 to be pressed in is calculated, and the distance D between the lower end surface of the main shaft and the bottom surface of the frame or the distance D between the lower end surface of the main shaft after press-fitting and the bottom surface of the frame is measured and calculated, and the distances B, B > a between the matching surface of the pressing die 8 and the adjusting ring 6 and the highest end surface of the frame 1 are measured.
2. As shown in fig. 5 and 6, the positioning tool 2 changes the adjusting pad 23 to ensure that the distance C from the upper end surface of the positioning plate 22 to the upper end surface of the base is equal to the distance D from the lower end surface of the spindle to the bottom surface of the rack — the depth a into which the spindle needs to be pressed is equal to the distance D "from the lower end surface of the spindle to the bottom surface of the rack after press mounting, and measures the depth E of the entire measuring hole.
3. As shown in FIG. 1, the assembling method of the main shaft of the multi-cylinder hydraulic cone crusher sequentially comprises the following steps:
the method comprises the following steps: the positioning tool 2 is placed in the center of the mounting support 3, the rack 1 is hoisted to the mounting support 3, the bottom surface of the rack 1 is attached to the positioning tool 2, and the rack 1 and the mounting support 3 are fixed through bolts.
Step two: the main shaft 9 is hoisted and placed in a main shaft mounting hole of the frame, and the vertical state is ensured.
Step three: the pressing die 8 is sleeved on the main shaft, then the adjusting ring 6 is assembled on the frame 1, and the upper end nut of the release oil cylinder 4 is screwed to the position attached to the adjusting ring 6.
Step four: the pipeline of the release oil cylinder 4 is connected with the hydraulic oil station 5, and the release oil cylinder 4 is connected to the hydraulic oil station 5.
Step five: the electric control and manual operation box 7 is connected, and the electric control and manual operation box 7 controls the hydraulic oil station 5.
Step six: and (3) switching on a power supply, starting the hydraulic oil station 5 to pump hydraulic oil into the release oil cylinder 4 through the electric control and manual operation box 7, and pressing the main shaft 9 into the main shaft mounting hole of the frame 1.
Step seven: the main shaft is controlled to be pressed in and displaced through the positioning tool 2. As shown in fig. 5, a depth gauge is used to measure a distance F from the lower end surface of the spindle to the lower end surface of the measuring hole through the measuring hole in the positioning tool 2, so as to determine whether the spindle 9 is in contact with the positioning tool 2, that is, whether the spindle 9 is assembled in place, and when F is equal to E, the spindle is press-fitted in place.
Step eight: the pressure was maintained for 30 minutes.
4. And (5) finishing the assembly.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. A method for assembling a main shaft of a multi-cylinder hydraulic cone crusher is characterized by comprising the following steps: the mounting support supports the fixed rack, a release oil cylinder on the rack applies tension to the adjusting ring, then the adjusting ring applies pressure to the pressing die, the pressing die presses the spindle into a spindle mounting hole of the rack, a positioning tool is arranged right below the spindle mounting hole of the rack, and the positioning tool is provided with a measuring hole for measuring the pressing depth of the spindle.
2. The method for assembling the main shaft of the multi-cylinder hydraulic cone crusher according to claim 1, characterized in that: the method comprises the following specific steps:
the method comprises the following steps: placing a positioning tool at the central position of the mounting bracket, hoisting the rack onto the mounting bracket, ensuring that the bottom surface of the rack 1 is attached to the positioning tool, and fixing the rack and the mounting bracket by using bolts;
step two: a main shaft is hoisted and placed in a main shaft mounting hole of the frame, so that the vertical state is ensured;
step three: sleeving a pressing die on the main shaft, assembling an adjusting ring on the frame, and screwing a nut at the upper end of the release oil cylinder to a position attached to the adjusting ring;
step four: connecting a release oil cylinder pipeline with a hydraulic oil station, and connecting a release oil cylinder to the hydraulic oil station;
step five: a control device of the hydraulic oil station is connected;
step six: starting a hydraulic oil station to pump hydraulic oil into a release oil cylinder, and pressing a main shaft into a main shaft mounting hole of the frame;
step seven: the pressing-in displacement of the main shaft is controlled through a positioning tool, and the distance F from the lower end face of the main shaft to the lower end face of a measuring hole is measured through the measuring hole in the positioning tool by a depth gauge to judge whether the main shaft is in contact with the positioning tool or not, namely whether the main shaft is assembled in place or not;
step eight: maintaining the pressure for a certain time, and finishing the installation of the main shaft.
3. The method for assembling the main shaft of the multi-cylinder hydraulic cone crusher according to claim 2, characterized in that: step seven, the positioning tool is composed of a base, a positioning plate and an adjusting pad, the adjusting pad is arranged between the positioning plate and the base in a cushioning mode, the positioning plate and the base are fixed together through bolts, and the positioning tool is provided with a measuring hole penetrating through the base and the positioning plate; according to the interference magnitude of the main shaft and the rack, the depth A of the main shaft needing to be pressed in is calculated, the distance D from the lower end face of the main shaft to the bottom face of the rack and the distance D from the lower end face of the main shaft to the bottom face of the rack after press mounting are measured, the distance B from the matching surface of a pressing die and an adjusting ring to the highest end face of the rack is greater than the depth A of the main shaft needing to be pressed in, a positioning tool ensures that the distance C from the upper end face of a positioning plate to the upper end face of a base is equal to the distance D from the lower end face of the main shaft to the bottom face of the rack through replacing an adjusting pad, the depth A of the main shaft needing to be; and in the pressing process, when the distance F from the lower end face of the main shaft to the lower end face of the measuring hole is equal to the depth E of the measuring hole, the main shaft is pressed in place.
4. The method for assembling the main shaft of the multi-cylinder hydraulic cone crusher according to claim 1, characterized in that: the mounting bracket adopts four feet to support the rack upwards, and the mounting bracket adopts a bolt to be connected with the rack.
5. The method for assembling the main shaft of the multi-cylinder hydraulic cone crusher according to claim 1, characterized in that: the mounting bracket comprises flat plate, supporting legs, channel steel and strengthening rib, and four supporting legs weld on the flat plate of bottom, and four supporting legs adopt channel steel and strengthening rib to consolidate.
6. The method for assembling the main shaft of the multi-cylinder hydraulic cone crusher according to claim 1, characterized in that: the pressing die is of a circular structure, so that pressure is uniformly distributed, and the pressing die is provided with a main shaft sleeve hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022665.7A CN109079475B (en) | 2018-09-03 | 2018-09-03 | Method for assembling main shaft of multi-cylinder hydraulic cone crusher |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811022665.7A CN109079475B (en) | 2018-09-03 | 2018-09-03 | Method for assembling main shaft of multi-cylinder hydraulic cone crusher |
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| CN109079475A CN109079475A (en) | 2018-12-25 |
| CN109079475B true CN109079475B (en) | 2020-08-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110052819B (en) * | 2019-05-07 | 2023-06-16 | 南昌矿机集团股份有限公司 | Automatic dismounting device and method for crusher connected frame |
| CN110202527B (en) * | 2019-06-14 | 2023-06-16 | 南昌矿机集团股份有限公司 | Device and method for disassembling and assembling upper frame of single-cylinder hydraulic cone crusher |
| CN113953804B (en) * | 2021-10-18 | 2022-09-27 | 南昌矿机集团股份有限公司 | Movable cone assembling device and method of hydraulic cone crusher |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04256448A (en) * | 1991-02-08 | 1992-09-11 | Ube Ind Ltd | Device for setting control of crusher |
| JP2004330155A (en) * | 2003-05-12 | 2004-11-25 | Ishikawajima Harima Heavy Ind Co Ltd | Cone crusher |
| SE525341C2 (en) * | 2003-06-18 | 2005-02-08 | Sandvik Intellectual Property | Fastening method for fastening outer shell in gyrator crusher, involves pressing spacer for clamping outer shell in between second abutment surface on outer periphery of outer shell and frame |
| SE531280C2 (en) * | 2007-05-16 | 2009-02-10 | Sandvik Intellectual Property | Inner mantle for a gyratory crusher, and ways to attach such a mantle to a crusher head |
| CN101890611B (en) * | 2010-06-30 | 2013-09-18 | 湘电风能有限公司 | Assembling platform for main bearing of wind power generator |
| US9393678B2 (en) * | 2012-09-14 | 2016-07-19 | Metso Minerals (France) S.A. | Head bolt tightening tool for a cone crusher head assembly |
| CN103894818B (en) * | 2012-12-27 | 2016-04-06 | 中国科学院沈阳自动化研究所 | A kind of Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine |
| CN104984782A (en) * | 2015-07-16 | 2015-10-21 | 成都大宏立机器股份有限公司 | Hydraulic cone crusher eccentric sleeve, crusher, and assembling method of crusher |
| CN205057464U (en) * | 2015-10-19 | 2016-03-02 | 广西恒达电机科技有限公司 | A intelligent hydraulic press for electric motor rotor and main shaft equipment |
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Address after: 330004 No. 300, Hongwan Avenue, Wanli District, Nanchang City, Jiangxi Province Patentee after: Nanchang Mining Machinery Group Co.,Ltd. Address before: 330004 No. 300, Hongwan Avenue, Wanli District, Nanchang City, Jiangxi Province Patentee before: NANCHANG MINERAL SYSTEMS Co.,Ltd. |
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