CN115492930A - Piston for hydraulic crusher and hydraulic crusher comprising same - Google Patents
Piston for hydraulic crusher and hydraulic crusher comprising same Download PDFInfo
- Publication number
- CN115492930A CN115492930A CN202211218794.XA CN202211218794A CN115492930A CN 115492930 A CN115492930 A CN 115492930A CN 202211218794 A CN202211218794 A CN 202211218794A CN 115492930 A CN115492930 A CN 115492930A
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- CN
- China
- Prior art keywords
- piston
- end cover
- piston body
- hydraulic
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000013461 design Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000004083 survival effect Effects 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 description 21
- 239000003921 oil Substances 0.000 description 21
- 238000003466 welding Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/08—Constructional features providing for lubrication
Abstract
The invention relates to the field of hydraulic crushing equipment, in particular to a piston for a hydraulic crusher and the hydraulic crusher comprising the piston. The piston for the hydraulic crusher comprises a piston body and an oil pipe arranged in the piston body, wherein a cavity is formed in the piston body, and the oil pipe is arranged in the cavity; the piston body comprises a side wall, an upper end cover arranged on the side wall and a lower end cover arranged at the lower part of the side wall. The piston of the hydraulic crusher provided by the invention adopts a split piston design, is simple in manufacturing process, low in cost and convenient to maintain and replace, and reduces the survival cost of enterprises.
Description
Technical Field
The invention relates to the field of hydraulic crushing equipment, in particular to a piston for a hydraulic crusher and the hydraulic crusher comprising the piston.
Background
When the hydraulic crusher works, hydraulic oil controls the oil cylinder piston to realize the ascending and descending position adjustment of the crusher main shaft, so that the size of the discharge port of the crusher is controlled. The lifting mechanism is simple in structure and reliable in operation, and can be used for realizing the lifting and descending of the main shaft and the stable movement. At present, the oil cylinder piston of the existing crushing equipment is integrally cast, and the piston structure is mainly divided into two types: one type is that a lubricating oil channel is processed in the middle of the piston body, and lubricating oil enters a friction disc, a gear and other parts through the oil channel to achieve the lubricating effect. The other type is that the piston body does not have special oil duct, utilizes the inside cavity of piston body to store lubricating oil, gets into friction disk, gear and other spare parts through piston cap top oilhole after lubricating oil fills up the cavity, though processing is simple relatively, lubricating oil not only can not all utilize, causes the waste, and lubricating oil in the cavity can not thoroughly clear up the change moreover, causes the pollution to newly-added lubricating oil. The pistons with the two types of structures are integrally cast, so that the machining cost is high, the construction period is long, the strength is low, casting defects possibly exist, and the pistons cannot be repaired once worn.
Disclosure of Invention
The present invention is proposed to solve the above-mentioned technical problems.
On one hand, the piston for the hydraulic crusher is designed in a split type piston mode, is simple in manufacturing process, low in cost and convenient to maintain and replace, and reduces the survival cost of enterprises.
In order to achieve the purpose, the invention adopts the following technical scheme: a piston for a hydraulic crusher comprises a piston body and an oil pipe arranged inside the piston body, wherein a cavity is formed inside the piston body, and the oil pipe is arranged in the cavity; the piston body comprises a side wall, an upper end cover arranged on the side wall and a lower end cover arranged at the lower part of the side wall.
Furthermore, an upper through hole is formed in the center of the upper end cover, and an upper annular groove is formed in the bottom of the upper end cover.
Further, the lateral wall is annular cylinder, the lateral wall is opened there is the side through-hole, and the top of lateral wall is provided with annular boss on, and the size of going up annular boss matches with the last annular groove of upper end cover, goes up annular boss and installs in the last annular groove of upper end cover.
Further, a lower annular groove is formed in the bottom of the lower end cover, a lower annular boss is arranged at the bottom of the side wall, the size of the lower annular boss is matched with the lower annular groove of the lower end cover, and the upper annular boss is installed in the lower annular groove of the lower end cover.
Furthermore, one end of the oil pipe is connected to the upper through hole of the upper end cover, and the other end of the oil pipe is connected to the side through hole of the side wall.
In another aspect, the present invention provides a hydraulic breaker including a piston as described in any preceding paragraph.
The piston in the hydraulic crusher is formed by split welding, the working difficulty is reduced, the strength of the piston is improved, an independent lubricating pipeline is formed, and the lubricating efficiency is improved.
Drawings
The above and other objects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like or similar elements are designated by like reference numerals.
Fig. 1 is a schematic view of a piston structure in the present invention.
Fig. 2 is a schematic view of the piston structure of the present invention in a crusher.
Description of reference numerals: 1-side wall, 2-upper end cover, 3-lower end cover, 4-oil pipe, 21-upper through hole, 22-upper ring groove,
11-side through hole, 12-upper annular boss, 13-lower annular boss and 31-lower annular groove; 5-cylinder body, 6-lower friction disk, 7-middle friction disk, 8-main shaft, 9-lubricating oil inlet pipe and 10-hydraulic oil inlet pipe.
Detailed Description
The present invention will be described in further detail with reference to examples. The advantages and features of the present invention will become more apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Terms such as "comprising" and "comprises" mean that, in addition to having components which are directly and explicitly stated in the description and claims, the solution of the invention does not exclude other components which are not directly or explicitly stated. In the description herein, use is made of directional terms such as "upper", "lower", "front", "rear", etc., it being understood that these directional terms are relative concepts, which are used for the description and clarification of the relative position, and the corresponding specific orientation may vary accordingly depending on the orientation of the crusher.
As shown in fig. 1 and 2, a piston for a hydraulic breaker comprises a piston body and an oil pipe 4 arranged inside the piston body, wherein a cavity is arranged inside the piston body, and the oil pipe is arranged in the cavity; the piston body comprises a side wall 1, an upper end cover 2 arranged on the side wall 1 and a lower end cover 3 arranged at the lower part of the side wall 1. The split piston design is adopted, the manufacturing process is simple, the cost is low, the maintenance and the replacement are convenient, and the survival cost of an enterprise is reduced.
In this embodiment, an upper through hole 21 is formed in the center of the upper end cover 2, a side through hole 11 is formed in the side wall 1, the other end of the oil pipe 4 is welded to the side through hole 11, one end of the oil pipe 4 is welded to the upper through hole 21 to form an independent closed lubrication loop, and lubricating oil overflows from the upper through hole 21 along with the oil pipe 4 from the side through hole 11 to lubricate the lower friction disc 6, the middle friction disc 7, the gear and the main shaft 8.
In this embodiment, the upper end cap 2 is provided with an upper annular groove 22 at the bottom, the lower end cap 3 is provided with a lower annular groove 31 at the bottom, the top of the side wall 1 is provided with an upper annular boss 12, the size of the upper annular boss 12 matches with the upper annular groove 22 of the upper end cap 2, and the upper annular boss 12 is installed in the upper annular groove 22 of the upper end cap 2. During the use, upper end cover 2 welds at lateral wall 1 top, and upper ring groove 22 matches with upper annular boss 12, and lower extreme cover 3 welds at lateral wall 1 bottom, and lower annular groove 31 matches with lower annular boss 13. Adopt split type welding mode design, replaced the whole casting mode not only reduced the processing degree of difficulty, practiced thrift the processing cost, also improved work efficiency simultaneously, the maintenance of being convenient for. The split type welding mode and the matching design of the boss and the annular groove are favorable for improving the overall strength of the piston body, the split piston body is assembled into a whole in the matching mode of the boss and the annular groove, and then the piston body is further fixed in the welding mode, so that the stability and the strength of the whole piston body are guaranteed, and the operation stability of the piston body is improved.
In this embodiment, the oil pipe 4 is made of seamless steel, which replaces the traditional way of processing an oil passage on the piston body, improves the strength of the piston, and has an independent lubricating oil passage, thereby saving lubricating oil and ensuring the cleanness of the lubricating oil.
In this embodiment, the invention provides a hydraulic breaker including a piston as described in any preceding paragraph. The hydraulic crusher comprises a hydraulic gyratory crusher and a single-cylinder hydraulic cone crusher.
In the embodiment, as shown in fig. 2, hydraulic oil enters the inside of the oil cylinder from the hydraulic oil inlet pipe 10, and the piston body is moved upward under the action of the hydraulic oil, so that the main shaft 8 is controlled to ascend, and the discharge port of the crusher is increased; hydraulic oil return is carried out, the piston body moves downwards in the cylinder body 5, the main shaft 8 descends, and the discharge opening of the crusher is reduced. In the working process of the crusher, lubricating oil enters from the lubricating oil pipe 9 to lubricate the upper friction disc 6, the middle friction disc 7, the gear and the main shaft 8, so that the cleanness of the lubricating oil is ensured. Compared with the existing lubricating mode, the lubricating oil is guaranteed to be clean and sanitary, impurities are not mixed, and due to the arrangement of the closed oil passage, the use of the lubricating oil is saved.
Compared with the prior art, the invention has the following beneficial effects:
1) According to the invention, the cavity is arranged in the piston body, and the oil pipe is arranged in the cavity, so that the production cost can be effectively reduced.
2) The piston body comprises the side wall, the upper end cover and the lower end cover, and the split welding design is adopted, so that the piston is simple in manufacturing process, low in cost and convenient to maintain and replace, and the production cost of an enterprise is reduced.
3) The invention designs the welding mode and the matching design of the lug boss and the annular groove, which are beneficial to improving the overall strength of the piston body, not only the split piston body is assembled into a whole in the matching mode of the lug boss and the annular groove, but also the piston body is further fixed in the welding mode, thereby ensuring the stability and the strength of the whole piston body and improving the operation stability of the piston body.
4) The invention designs that the oil pipe is made of seamless steel, replaces the traditional mode of processing an oil passage on the piston body, improves the strength of the piston, has an independent lubricating oil passage, saves lubricating oil and ensures the cleanness of the lubricating oil.
The piston body with the cavity, the independent closed lubricating oil pipe and the split welded piston body designed in the invention are all important technical characteristics, and have novelty, creativity and practicability in the field of hydraulic crushing equipment, and the terms in the technical scheme can be explained and understood by using patent documents in the technical field.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention belong to the protection scope of the present invention.
Claims (6)
1. A piston for a hydraulic crusher comprises a piston body and an oil pipe arranged inside the piston body, wherein a cavity is formed inside the piston body, and the oil pipe is arranged in the cavity; the piston body comprises a side wall, an upper end cover arranged on the side wall and a lower end cover arranged at the lower part of the side wall.
2. The piston of claim 1, wherein: the upper end cover is characterized in that an upper through hole is formed in the center of the upper end cover, and an upper annular groove is formed in the bottom of the upper end cover.
3. The piston of claim 2, wherein: the lateral wall is the annular cylinder, it has the side through-hole to open on the lateral wall, and the top of lateral wall is provided with annular boss, and the size of going up annular boss matches with the last annular groove of upper end cover, goes up annular boss and installs in the last annular groove of upper end cover.
4. The piston of claim 3, wherein: the bottom of the lower end cover is provided with a lower annular groove, the bottom of the piston body is provided with a lower annular boss, the size of the lower annular boss is matched with the lower annular groove of the lower end cover, and the upper annular boss is installed in the lower annular groove of the lower end cover.
5. The piston of claim 4, wherein: one end of the oil pipe is connected to the upper through hole of the upper end cover, and the other end of the oil pipe is connected to the side through hole of the side wall.
6. A hydraulic crusher comprising a piston according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218794.XA CN115492930A (en) | 2022-10-07 | 2022-10-07 | Piston for hydraulic crusher and hydraulic crusher comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218794.XA CN115492930A (en) | 2022-10-07 | 2022-10-07 | Piston for hydraulic crusher and hydraulic crusher comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115492930A true CN115492930A (en) | 2022-12-20 |
Family
ID=84473390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211218794.XA Pending CN115492930A (en) | 2022-10-07 | 2022-10-07 | Piston for hydraulic crusher and hydraulic crusher comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115492930A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3417932A (en) * | 1966-03-28 | 1968-12-24 | Allis Chalmers Mfg Co | Gyratory crusher |
| DE2131901A1 (en) * | 1971-06-26 | 1973-01-11 | Kloeckner Humboldt Deutz Ag | CENTRIFUGAL CRUSHERS WITH HYDRAULIC ADJUSTMENT OF THE GAP WIDTH AND LUBRICATING OIL SUPPLY THROUGH THE ADJUSTING PISTON |
| US4084756A (en) * | 1976-06-08 | 1978-04-18 | Allis-Chalmers Corporation | Gear and pinion backlash adjustment for the drive of a gyratory crusher |
| US4664318A (en) * | 1984-04-27 | 1987-05-12 | Voest-Alpine Aktiengesellschaft | Cone crusher |
| US20140097282A1 (en) * | 2011-06-07 | 2014-04-10 | Sandvik Intellectual Property Ab | Gyratory crusher with piston |
| US20180252217A1 (en) * | 2015-09-14 | 2018-09-06 | Metso Minerals, Inc. | Lubrication system |
-
2022
- 2022-10-07 CN CN202211218794.XA patent/CN115492930A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3417932A (en) * | 1966-03-28 | 1968-12-24 | Allis Chalmers Mfg Co | Gyratory crusher |
| DE2131901A1 (en) * | 1971-06-26 | 1973-01-11 | Kloeckner Humboldt Deutz Ag | CENTRIFUGAL CRUSHERS WITH HYDRAULIC ADJUSTMENT OF THE GAP WIDTH AND LUBRICATING OIL SUPPLY THROUGH THE ADJUSTING PISTON |
| US4084756A (en) * | 1976-06-08 | 1978-04-18 | Allis-Chalmers Corporation | Gear and pinion backlash adjustment for the drive of a gyratory crusher |
| US4664318A (en) * | 1984-04-27 | 1987-05-12 | Voest-Alpine Aktiengesellschaft | Cone crusher |
| US20140097282A1 (en) * | 2011-06-07 | 2014-04-10 | Sandvik Intellectual Property Ab | Gyratory crusher with piston |
| US20180252217A1 (en) * | 2015-09-14 | 2018-09-06 | Metso Minerals, Inc. | Lubrication system |
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