CN106932287B - Impact resistance testing machine for ceramic grinding body - Google Patents
Impact resistance testing machine for ceramic grinding body Download PDFInfo
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- CN106932287B CN106932287B CN201710129184.5A CN201710129184A CN106932287B CN 106932287 B CN106932287 B CN 106932287B CN 201710129184 A CN201710129184 A CN 201710129184A CN 106932287 B CN106932287 B CN 106932287B
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- ceramic grinding
- end cover
- test tube
- grinding body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to an impact resistance testing machine for a ceramic grinding body, and belongs to testing equipment for the impact resistance of the ceramic grinding body. The technical scheme adopted by the invention is as follows: the utility model provides a ceramic grinding body impact resistance testing machine, includes rotary drive device and hollow smooth test tube of inner wall, and the test tube is fixed in rotary drive device's rotatory output shaft's front end in the middle part, test tube's both ends are equipped with respectively and dismantle the end cover, are equipped with the fixed chamber that holds the ceramic grinding body of fixed test in the detachable end cover, and the ceramic grinding body sets up in the fixed intracavity of end cover with detachable mode, put into movable ceramic grinding body in the test tube.
Description
Technical Field
The invention relates to an impact resistance testing machine for a ceramic grinding body, and belongs to testing equipment for the impact resistance of the ceramic grinding body.
Background
The ceramic ball is a cm-level spherical ceramic object which is formed by processing, forming and sintering high-quality kaolin, feldspar materials or materials such as alumina, zirconia, silicon nitride, silicon carbide and the like. The ceramic balls can be classified into filler ceramic balls, wet-grinding ceramic balls and dry-grinding ceramic balls according to the purpose thereof.
The ceramic grinding body for cement grinding, which is first initiated in the world in 2015, belongs to dry grinding ceramic balls, and is abbreviated as: the performance index (ball breaking rate and abrasion) of the ceramic grinding body in the dry grinding system is far superior to that of the common ceramic balls. The ceramic grinding body is a novel material for grinding cement and replacing chromium alloy casting balls in recent years, so that not only is energy-saving and consumption-reducing in cement industrial production realized, but also the heavy metal pollution of hexavalent chromium is avoided, and the ceramic grinding body is an advanced technical product which is initiated by the cement industry in the world in China.
So far, the market often appears to impersonate a ceramic grinding body by using a common ceramic ball, so that cement enterprises suffer from broken balls and yield reduction. In order to innovate, drive and develop supply side reform and standardize the ceramic grinding body market and continuously improve the product quality and service level of the ceramic grinding body, the China cement Association in 2017 makes a group standard for cement grinding ceramic grinding body for the first time in China, wherein an impact resistance index is one of important parameters for representing the quality of the ceramic grinding body; the invention is the only device for testing the impact resistance of the ceramic grinding body.
Disclosure of Invention
The invention provides an impact resistance testing machine for a ceramic grinding body, which solves the problem of impact resistance testing of a ceramic grinding ball.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a ceramic grinding body shock resistance testing machine, includes rotary drive device and hollow smooth test tube of inner wall, and the test tube is fixed in rotary drive device's rotatory output shaft's front end in the middle part, test tube's both ends are equipped with respectively and dismantle the end cover, are equipped with the fixed chamber that holds the ceramic grinding body of fixed test in the detachable end cover, and the ceramic grinding body sets up in the fixed intracavity of end cover with detachable mode, test tube is interior to put into one piece of movable ceramic grinding body that awaits measuring, and one piece of ceramic grinding body that awaits measuring is respectively fixed at both ends.
Preferably, the fixing cavity of the end cover is cylindrical hollow, the opening end of the end cover is provided with a rubber gasket, the rubber gasket is detachably arranged on the periphery of the opening of the end cover, a hole is formed in the middle of the rubber gasket, and a ceramic grinding ball part sphere fixed in the fixing cavity protrudes from the hole of the rubber pad.
Preferably, the outer diameter part of the end part of the test tube is provided with a test tube flange in a protruding mode, the circumferential surface of the end cover is provided with an end cover flange in a protruding mode, and the test tube flange is connected with the end cover flange through bolts.
Further preferably, the rotary driving device comprises a gear motor and a bracket for fixing the gear motor, wherein a rotary frame is fixedly arranged at the front end of a rotary output shaft of the gear motor, and the rotary frame is used for fixing the central position of the test tube.
Preferably, a coupling is arranged between the front end of the rotary output shaft of the gear motor and the rotary frame, the rotary frame is provided with a supporting bearing seat, and the bearing seat is fixed on the bracket.
The invention has the advantages that:
the ceramic grinding ball in the test tube is repeatedly subjected to impact test by rotating the test tube around the central part, so that the working environment of the ceramic grinding ball in cement grinding can be simulated, the quality of the ceramic grinding ball is simulated, and a good test environment is established for the quality standard of the ceramic grinding ball. The device is an creative invention and fills the blank of the industry.
Drawings
FIG. 1 is a block diagram of a test tube according to the present invention,
figure 2 is an overall block diagram of the invention,
reference numerals:
1 test tube 2 rotates output shaft 3 end cover 4 fixed chamber 5 ceramic grinding body 6 rubber gasket 7 test tube flange 8 end cover flange 9 bolt 10 gear motor 11 support 12 swivel mount 13 shaft coupling 14 bearing frame.
Detailed Description
The structure of the invention is shown in fig. 1 and 2, and the ceramic grinding body impact resistance testing machine comprises a rotary driving device and a hollow testing tube with a smooth inner wall, wherein the testing tube is fixed at the front end of a rotary output shaft of the rotary driving device at the middle part.
The both ends of test tube are equipped with detachable end cover respectively, are equipped with the fixed chamber that holds the ceramic grinding ball of fixed test in the detachable end cover, and the ceramic grinding body sets up in the fixed intracavity of end cover with detachable mode, put into movable ceramic grinding body in the test tube.
As shown in fig. 1, the fixing cavity of the end cover is cylindrical hollow, the opening end of the end cover is provided with a rubber gasket, the rubber gasket is detachably arranged on the periphery of the opening of the end cover, the middle part of the rubber gasket is provided with a hole, and a ceramic grinding body part sphere fixed in the fixing cavity protrudes from the hole of the rubber pad.
The ceramic grinding body can be directly placed in the fixed cavity of the end cover, the rubber gasket is directly attached to the periphery of the opening of the end cover, a plurality of bulges are arranged on the periphery of the opening of the end cover, a plurality of grooves are formed in the periphery of the corresponding rubber gasket, the bulges are matched with the grooves, the rubber gasket can be detachably arranged on the end cover, and meanwhile the problem that the rubber gasket falls off easily during installation can be avoided. The end cover is fixed at the end part of the test tube, the rubber gasket is fixed, and the ceramic grinding body in the fixed cavity is blocked by the rubber gasket to prevent the ceramic grinding body from sliding into the test tube. The holes on the rubber gaskets leak out a part of the ceramic grinding bodies in the fixed cavities for realizing collision with the free sliding movable ceramic grinding bodies.
The outer diameter part of the end part of the test tube is provided with a test tube flange in a protruding mode, the circumferential surface of the end cover is provided with an end cover flange in a protruding mode, and the test tube flange is connected with the end cover flange through bolts. The flange is fixedly connected with the bolt, the structure is firm, the rotary driving device is effectively prevented from comprising a gear motor and a bracket for fixing the gear motor, a rotary frame is fixedly arranged at the front end of a rotary output shaft of the gear motor, and the rotary frame is used for fixing the central position of a test tube. A coupling is arranged between the front end of the rotary output shaft of the gear motor and the rotary frame, the rotary frame is provided with a bearing seat for supporting, and the bearing seat is fixed on the bracket.
In use, the ceramic grinding body in the test tube is required to slide from the upper end to the lower end in the rotation of the test tube, the potential energy of the ceramic grinding ball in the process is gradually increased in the pulley process, and when the ceramic grinding ball slides to the lower part of the test tube, the moving ceramic grinding ball collides with the ceramic grinding ball fixed in the end cover, and the ceramic grinding ball is damaged in the collision process due to the strong impact resistance of the ceramic grinding ball. The process of the above-described impact is periodic. After the gear motor reaches the preset rotation time, stopping rotating, opening the end cover, and checking whether the ceramic grinding body in the end cover and the moving ceramic grinding body have surface changes or not, and whether the defects such as peeling, cracks, pits and the like exist or not. The three ceramic grinding bodies to be tested are qualified products if no defect exists, and conversely, one ceramic grinding body is unqualified if a defect exists.
Ceramic abrasive bodies vary in diameter over a range of diameters due to the varying thickness stages of processing during cement manufacture. The inside diameters of the test tubes thus set are also different, and we require that the inside diameter of the test tube is larger than the diameter of the ceramic grinding body, and that sliding within the test tube does not take into account the friction factor of the inside diameter of the test tube.
The output rotation speed of the rotary motor is performed according to the rotation speed in the cement ball mill. In practice, the rotational speed of the test tube is related to the length of the test tube.
Taking size data of an example device as an example;
the length of the test tube is 50cm, the diameter of the ceramic grinding ball to be tested is 20mm, the rotation speed of the output shaft of the speed reducing motor is 20 revolutions per minute, and the rotation time of the motor is set to be 1 hour.
And starting a speed reducing motor to rotate, wherein the speed reducing motor drives the test tube to rotate for one hour, and the rotating speed of the test tube is 20 revolutions per minute. In the rotation, the ceramic grinding ball of motion starts the motion in the department of the lowest, the test tube rotates, the ceramic grinding ball of motion is because the swing of test tube, its own stationary inertia's influence that exists simultaneously, the ceramic grinding ball can be along with the lower extreme upward motion of test tube, the test tube that awaits measuring rotates to about to vertical state once more, the ceramic grinding ball of motion is because self gravity effect along the whereabouts of test tube internal diameter, because the rotational speed of test tube is lower, the ceramic grinding ball of activity can strike the fixed ceramic grinding ball of landing to the bottom of test tube before the test tube is totally vertical, accomplish an impact test promptly. As the test tube is in periodic rotation, the moving ceramic grinding ball is further in the periodic circulation of ascending, downward impact and ascending again, thereby realizing the simulation of the running environment of the ceramic grinding ball in the cement ball mill, testing the use state of the ceramic grinding ball and further judging the quality level of the ceramic grinding ball.
Claims (3)
1. The ceramic grinding body impact-resistant testing machine is characterized by comprising a rotary driving device and a hollow testing tube (1) with a smooth inner wall, wherein the testing tube (1) is fixed at the front end of a rotary output shaft (2) of the rotary driving device at the middle part, two ends of the testing tube (1) are respectively provided with a detachable end cover (3), a fixing cavity (4) for accommodating a ceramic grinding ball for fixing testing is arranged in the detachable end cover (3), the ceramic grinding ball (5) for fixing testing is arranged in the fixing cavity (3) of the end cover, and movable ceramic grinding balls are put into the testing tube (1); the outer diameter part of the end part of the test tube (1) is provided with a test tube flange (7) in a protruding mode, the circumferential surface of the end cover is provided with an end cover flange (8) in a protruding mode, and the test tube flange (7) is connected with the end cover flange (8) through bolts (9); the rotary driving device comprises a gear motor (10) and a bracket (11) for fixing the gear motor, wherein a rotary frame (12) is fixedly arranged at the front end of a rotary output shaft of the gear motor, and the rotary frame is used for fixing the central position of a test tube.
2. The ceramic grinding body impact-resistant testing machine according to claim 1, wherein the fixing cavity of the end cover (3) is cylindrical and hollow, the opening end of the end cover is provided with a rubber gasket (6), the rubber gasket (6) is detachably arranged on the periphery of the opening of the end cover, the middle part of the rubber gasket is provided with a hole, and the sphere of the ceramic grinding ball part fixed in the fixing cavity protrudes from the hole of the rubber gasket.
3. The ceramic grinding body impact resistance testing machine according to claim 1, wherein a coupling (13) is arranged between the front end of the rotary output shaft of the gear motor and the rotary frame, the rotary frame (12) is provided with a bearing seat (14) for supporting, and the bearing seat is fixed on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129184.5A CN106932287B (en) | 2017-03-06 | 2017-03-06 | Impact resistance testing machine for ceramic grinding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129184.5A CN106932287B (en) | 2017-03-06 | 2017-03-06 | Impact resistance testing machine for ceramic grinding body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106932287A CN106932287A (en) | 2017-07-07 |
| CN106932287B true CN106932287B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710129184.5A Active CN106932287B (en) | 2017-03-06 | 2017-03-06 | Impact resistance testing machine for ceramic grinding body |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113447373B (en) * | 2021-06-03 | 2022-08-02 | 山东金池重工股份有限公司 | Wear-resistant steel ball impact toughness testing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204439477U (en) * | 2015-03-20 | 2015-07-01 | 东洋铁球（马鞍山）有限公司 | A kind of abrading-ball impulse fatigue resistance energy testing machine test cabin |
| CN105547875A (en) * | 2016-01-29 | 2016-05-04 | 山东华民钢球股份有限公司 | Centrifugal grinding ball smashing tester |
| CN206787952U (en) * | 2017-03-06 | 2017-12-22 | 山东国元新材料有限公司 | Ceramic grinding body impact resistance testing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1013826A3 (en) * | 2000-11-06 | 2002-09-03 | Magotteaux Int | DEVICE FOR DETERMINING THE CORROSION OF CRUSHING MACHINERY IN A ROTARY CRUSHER. |
| US8402811B2 (en) * | 2010-06-26 | 2013-03-26 | Yining Nie | Cyclic impact-sliding fatigue wear testing instrument |
| TWI444616B (en) * | 2012-06-06 | 2014-07-11 | Univ Nat Taiwan Science Tech | Rotary-drum hydraulic-impact abrasion machine |
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2017
- 2017-03-06 CN CN201710129184.5A patent/CN106932287B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204439477U (en) * | 2015-03-20 | 2015-07-01 | 东洋铁球（马鞍山）有限公司 | A kind of abrading-ball impulse fatigue resistance energy testing machine test cabin |
| CN105547875A (en) * | 2016-01-29 | 2016-05-04 | 山东华民钢球股份有限公司 | Centrifugal grinding ball smashing tester |
| CN206787952U (en) * | 2017-03-06 | 2017-12-22 | 山东国元新材料有限公司 | Ceramic grinding body impact resistance testing machine |
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| CN106932287A (en) | 2017-07-07 |
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