AU2015413420B2 - Device for consecutively launching steel balls for collision testing of ball mill - Google Patents
Device for consecutively launching steel balls for collision testing of ball mill Download PDFInfo
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- AU2015413420B2 AU2015413420B2 AU2015413420A AU2015413420A AU2015413420B2 AU 2015413420 B2 AU2015413420 B2 AU 2015413420B2 AU 2015413420 A AU2015413420 A AU 2015413420A AU 2015413420 A AU2015413420 A AU 2015413420A AU 2015413420 B2 AU2015413420 B2 AU 2015413420B2
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- end plate
- inflow end
- air chamber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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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
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
Abstract
A device for consecutively launching steel balls for collision testing of a ball mill. The device comprises an air compressor (3), a pressure reducing valve (2), an air chamber (14), a ball inlet tube (4), a bore (7), and a cam mechanism. The air chamber (14) is connected to the pressure reducing valve (2) via a soft tube (1), the pressure reducing valve (2) is connected to an air outlet of the air compressor (3), an air outlet of the air chamber (14) is connected to a solenoid shut-off valve (17) via an external threaded connector (16), the solenoid shut-off valve (17) is connected to an air inflow end plate (5) via the external threaded connector (16), and is configured to control the air outlet of the air chamber (14) to be open or close, and the cam mechanism is configured to enable periodic reciprocating motion of the air inflow end plate (5). The device enables both control over a collision launching speed of steel balls and device volume miniaturization, and steel balls can be successively loaded at an interval, thereby facilitating consecutive collision launching.
Description
The present invention relates to the field of collision testing of large-size ball mills, in particular to a device for consecutively launching steel balls for collision testing of a ball mill.
II. Background Art
As the drum diameters of ball mills are increased continuously and the maximum diameter has even reached 7.9m, it is unable to effectively carry out test simulation of the milling process owing to the fact that there are complex impact and collision movements in the ball mills. Often briquetting equipment are used for the tests, for example, ball mills that are scaled down are set up for the tests. However, the test cost is high, and the dynamic mechanical properties of rocks and lining plates in the impact and collision process cannot be obtained accurately. Relevant launching devices (e.g., Hopkinson bar launchers) utilize a multi-stage light-gas cannon for launching, which involves impact activities (e.g., explosion etc.), and the medium used in such devices are usually light-weight gasses. As a result, very high launching speeds are obtained. Such launching speeds are as high as hundreds of meters per second, which are far higher than the collision speed required by collision and friction tests of ball mills. Moreover, most of such devices are large in size, and cannot realize consecutively ball launching and loading. One-stage air cannons use air as the medium and utilize the impact force generated by suddenly released compressed air to push steel balls out to obtain a required launching speed. Such devices are relatively suitable for collision testing of ball mills in terms of launching speed and device size. However, the functionality of those devices is too simple, and cannot realize consecutive and intermittent ball launching and consecutive ball loading.
III. Contents of the Invention
The object of the present invention is to solve the problems and overcome the drawbacks in the prior art, such as large size, high cost, difficulty to control due to high launching speed, and unable to achieve consecutive and intermittent ball launching and consecutive ball loading, etc., the present invention provides a novel device for consecutively collision launching, which can accurately simulate the steel ball collision speed in ball mills, and can realize consecutive and intermittent ball launching and consecutive ball loading.
The object of the present invention is achieved by the following technical scheme:
A device for consecutively launching steel balls for collision testing of a ball mill, comprising an air compressor (3), a pressure reducing valve (2), an air chamber (14), a ball inlet tube (4), a bore (7), and a cam mechanism, wherein, the air chamber (14) is connected to the pressure reducing valve (2) via a soft tube (1), the pressure reducing valve (2) is connected to an air outlet of the air compressor (3), an air outlet of the air chamber (14) is connected to a solenoid shut-off valve (17) via an external threaded connector (16), the solenoid shut-off valve (17) is connected to an air inflow end plate (5) via the external threaded connector (16) and is configured to control the air outlet of the air chamber (14) to be open or close, and the cam mechanism is configured to enable periodic feeding and receding motion of the air inflow end plate (5) and thereby facilitate consecutively collision launching; the outside of the air inflow end plate (5) is fixedly connected to a ball pressing lever (26), the ball pressing lever (26) feeds and recedes together with the air inflow end plate (5); one end of the ball pressing lever (26) is inserted into a hole in the side wall of the ball inlet tube (4) and pushes a steel ball (8) to be loaded out of the ball inlet tube (4) in the feeding process of the ball pressing lever (26); the next steel ball in the ball inlet tube enters into a position to be loaded under gravity after the ball pressing lever (26) is receded out of the ball inlet tube (4); the steel ball (8) that is pushed out of the ball inlet tube (4) falls onto a ball receiving plate (9) on the lower part of the air inflow end plate (5) and follows the air inflow end plate (5) to a position to be launched in the bore (7); the solenoid shut-off valve (17) is opened and high pressure air enters into the bore after the air inflow end plate (5) and the bore (7) are locked in relation to each other with an electromagnetic lock, so that the steel ball (8) is launched.
In the device for consecutively launching steel balls, the air pressure in the air chamber (14) is adjusted to a certain value for launching with the pressure reducing valve (2).
In the device for consecutively launching steel balls, the start of the collision launching is realized and the air-tightness of the air chamber is ensured to attain specific pressure of the compressed air by controlling the solenoid shut-off valve (13) to be open or close.
In the device for consecutively launching steel balls, the ball inlet tube (4) comprises four sections of round tubes that communicate with and are perpendicular to each other among every two of them, wherein, the first section is a horizontal round tube configured to store steel balls (8), the second section is a vertical round tube, the third section is a horizontal round tube, a position A where the second section and the third section are connected with each other is the position to be loaded, the fourth section is a vertical round tube along which a steel ball falls down onto the ball receiving plate (9), the first section and the second section are in the same plane, the third section and the fourth section are in the same plane, and the two planes are perpendicular to each other; holes are arranged in the side walls of the second section and the fourth section of round tubes respectively, and the ball pressing lever (26) is inserted into the holes to push out the steel ball (8) in the feeding process of the ball pressing lever (26); the fourth section of round tubes is fixedly connected at the inlet of the bore (7) via bolts.
In the device for consecutively launching steel balls, after the ball pressing lever (26) pushes out a steel ball, the steel ball cannot enter into the position to be loaded so as to avoid launching by mistake, because the ball pressing lever occupies the position to be loaded and can close the fourth section of round tubes.
In the device for consecutively launching steel balls, the air inflow end plate (5) and the bore (7) are detachably mechanically connected, and the air inflow end plate (5) and the bore (7) can be controlled by the electromagnetic lock to allow the air inflow end plate (5) and the bore (7) be mechanical connected with or disconnected from each other; the ends of the air inflow end plate (5) are fixedly connected with two air inflow end plate extension arms (27), and a square hole is arranged in each of the air inflow end plate extension arms (27); the electromagnetic lock comprises an electromagnetic lock frame (12), a first spring (11), a solenoid (13), and a lock cylinder (10), wherein, the electromagnetic lock frame (12) is connected to the bore (7), the electromagnet (13) is fixed to the bottom of the electromagnetic lock frame (12), one end of the first spring (11) is fixed to the lock cylinder (10), and the other end of the first spring (11) is fixed to the bottom of the electromagnetic lock; the lock cylinder (10) can move up and down in the electromagnetic lock frame (12), and the lock cylinder (10) recedes into the electromagnetic lock frame (12) under an adsorption action of magnetic force and the air inflow end plate extension arm (27) can move freely when the electromagnet is powered on; the lock cylinder (10) is ejected out under the action of the first spring (11) and extends into the square holes in the air inflow end plate extension arms (10) to lock up the air inflow end plate extension arms (27) and the bore (7) together when the electromagnet is powered off.
In the device for consecutively launching steel balls, the junction part of the air inflow end plate (5) and the bore (7) is sealed with a sealing gasket (6), a terminal end of the sealing gasket (6) is an elastic plate that is curved inward, the steel ball (8) is stopped in the bore by the elastic plate of the sealing gasket (6) that extends into the bore after the steel ball (8) is pushed into the bore (7) by the air inflow end plate (5), so that the relative rest of the steel ball (8) is achieved to facilitate launching.
In the device for consecutively launching steel balls, the air chamber (14), the solenoid shut-off valve (17) and the air inflow end plate (5) are connected via the external threaded connector (16) into an integral assembly, and the air chamber (14) is mounted on a slide track.
In the device for consecutively launching steel balls, the cam mechanism comprises a step motor (22), a cam (18), a second spring (25), a front extension arm (28) at air chamber side, and a rear extension arm (29) at air chamber side, wherein, one end of the front extension arm (28) at air chamber side is fixed to a fixed prop at a side of the air chamber (14), the other end of the front extension arm at air chamber side contacts with the cam (18) via a bearing (24), the bearing (24) is connected to the end part of the front extension arm (28) at air chamber side via a pin shaft (23), the cam (18) is in surface contact with the bearing (24), and the bearing can roll on the surface of the cam (18); one end of the rear extension arm (29) at air chamber side is also fixed to the fixed prop at a side of the air chamber (14), the other end of the rear extension arm (29) at air chamber side is fitted in the second spring (25) and then passes through a support prop fixed to a machine frame, and the rear extension arm (29) at air chamber side can slide in axial direction in a hole in the support prop; the cam (18) is connected to a shaft (20) via a key, the shaft (20) is supported by two pillow blocks (19), and the other end of the shaft is connected to an output shaft of the step motor (22) via a coupler (21), and thereby the cam mechanism is formed.
The working principle of the device is as follows: the air compressor is started to inflate the air chamber, the air pressure is adjusted to a required value with the pneumatic pressure reducing valve, several steel balls are loaded into the ball inlet tube for one time, and the initial position of the air inflow end plate is in fit with the bore; the electromagnet is powered on so that the lock cylinder recedes, and the step motor is started at the same time; after the air inflow end plate is seceded away from the bore, the electromagnet is powered off so that the lock cylinder is ejected out, the air inflow end plate recedes continuously till it reaches to the furthest point, and at that point, a steel ball is right pressed to fall down by the ball pressing lever; under the control of the cam mechanism, the air inflow end plate starts feeding, the ball pressing lever presses out the fallen ball, and the steel ball is pushed out, falls down onto the ball receiving plate, and then is pressed into the bore by the air inflow end plate; after the air inflow end plate is in close fit with the bore, the extension arms at the two sides of the air inflow end plate are locked up by the lock cylinder, and the solenoid shut-off valve is opened to execute collision launching; after the steel ball is launched from the bore, the solenoid shut-off valve is closed, the air compressor continues to inflate for the next launching cycle. Now, a launching cycle is completed. After that, the launching cycle is repeated continuously, and thereby consecutive and intermittent launching is realized.
The device provided in the present invention has the following remarkable advantages: the device has a simple structure and appropriate dimensions, and is easy and convenient to install; under proper control, the device can accomplish consecutive and intermittent launching through the process described above; the launching speed of the steel ball can be adjusted and controlled by adjusting the pressure reducing valve to alter the pressure of compressed air in the air chamber.
IV. Description of the Drawings
Fig. 1 is a schematic diagram of overall structure of the device according to the present invention, with the air inflow end plate at the furthest point;
Fig. 2 is a top view of the overall structure of the device according to the present invention, with the air inflow end plate at the nearest point;
Fig. 3 is a schematic structural diagram of the ball pressing lever;
Fig. 4 is a schematic structural diagram of the electromagnetic lock;
Fig. 5 is a schematic contour diagram of the sealing gasket;
In the figures: 1 - soft tube; 2 - pressure reducing valve; 3 - air compressor; 4 - ball inlet tube; 5 - air inflow end plate; 6 - sealing gasket; 7 - bore; 8 - steel ball; 9 - ball receiving plate; 10 - lock cylinder; 11 - first spring; 12 - electromagnetic lock frame; 13 -electromagnet; 14 - air chamber; 15 - O-ring seal; 16 - external threaded connector; 17 - solenoid shut-off valve; 18 - cam; 19 - pillow block; 20 - shaft connected with the cam; 21 - coupler; 22 - step motor; 23 - pin shaft; 24 - bearing; 25 - second spring; 26 - ball pressing lever; 27 - air inflow end plate extension arm; 28 - front extension arm at air chamber side; 29 - rear extension arm at air chamber side
V. Embodiments
Hereunder the present invention will be detailed in some embodiments.
As shown in Figs. 1-5, the device for consecutively launching steel balls for collision and friction testing of a ball mill comprises an air compressor 3, a pressure reducing valve 2, an air chamber 14, a ball inlet tube 4, a bore 7, and a cam mechanism, wherein, the air chamber 14 is connected to the pressure reducing valve 2 via a soft tube 1, the pressure reducing valve 2 is connected to an air outlet of the air compressor 3, an air outlet of the air chamber 14 is connected to a solenoid shut-off valve 17 via an external threaded connector 16, the solenoid shut-off valve 17 is connected to an air inflow end plate 5 via the external threaded connector 16 and is configured to control the air outlet of the air chamber 14 to be open or close, wherein, a connection via the external threaded connector 16 is used to form a pneumatic passage, and the threads are sealed with an O-ring seal or by wrapping a segment of Teflon tape; the cam mechanism is configured to enable feeding and receding motion of the air inflow end plate 5, wherein, feeding refers to move towards the bore 7, while receding refers to move away from the bore 7; the outside of the air inflow end plate 5 is fixedly connected to a ball pressing lever 26, the ball pressing lever 26 feeds and recedes together with the air inflow end plate 5; one end of the ball pressing lever 26 is inserted into a hole in the side wall of the ball inlet tube 4 and pushes a steel ball 8 to be loaded out of the ball inlet tube 4 in the feeding process of the ball pressing lever 26; the next steel ball in the ball inlet tube enters into a position to be loaded under gravity after the ball pressing lever 26 is receded out of the ball inlet tube 4; the steel ball 8 that is pushed out of the ball inlet tube 4 falls onto a ball receiving plate 9 on the lower part of the air inflow end plate 5 and follows the air inflow end plate 5 to a position to be launched in the bore 7; the solenoid shut-off valve 17 is opened and high pressure air enters into the bore after the air inflow end plate 5 and the bore 7 are locked in relation to each other with an electromagnetic lock, so that the steel ball 8 is launched.
As shown in Fig. 1, the ball inlet tube 4 comprises four sections of round tubes that communicate with and are perpendicular to each other among every two of them, wherein, the first section is a horizontal round tube configured to store steel balls 8, the second section is a vertical round tube, the third section is a horizontal round tube, a position A where the second section and the third section are connected with each other is the position to be loaded, the fourth section is a vertical round tube along which a steel ball falls down onto the ball receiving plate 9, the first section and the second section are in the same plane, the third section and the fourth section are in the same plane, and the two planes are perpendicular to each other; holes is arranged in the side walls of the second section and the fourth section of round tube respectively, and the ball pressing lever 26 is inserted into the holes to push out the steel ball 8 in the feeding process of the ball pressing lever 26; the fourth section of round tubes is fixedly connected at the inlet of the bore 7 via bolts.
After the ball pressing lever 26 pushes out a steel ball, the steel ball cannot enter into the position to be launched so as to avoid launching by mistake, because the ball pressing lever occupies the position to be loaded and can close the fourth section of round tubes.
The air inflow end plate 5 and the bore 7 are detachably mechanically connected, and the mechanical connection and disconnection between the air inflow end plate 5 and the bore 7 is controlled by the electromagnetic lock, the ends of the air inflow end plate 5 are fixedly connected to two air inflow end plate extension arms 27, and a square hole is arranged in each of the air inflow end plate extension arms 27, wherein: the electromagnetic lock structure comprises an electromagnetic lock frame 12, a first spring 11, an electromagnet 13, and a lock cylinder 10, the electromagnetic lock frame 12 is connected to the bore 7 via bolts, the electromagnet 13 is fixed to the bottom of the electromagnetic lock frame 12 by structural adhesive, one end of the first spring 11 is fixed to the lock cylinder 10, and the other end of the first spring 11 is fixed to the bottom of the electromagnetic lock. The lock cylinder 10 can move up and down in the electromagnetic lock frame 12, and the lock cylinder 10 recedes into the electromagnetic lock frame 12 under an adsorption action of magnetic force and the air inflow end plate extension arm 27 can move freely when the electromagnet is powered on; the lock cylinder 10 is ejected out under the action of the first spring 11 and extends into the square holes in the air inflow end plate extension arms 10 to lock up the air inflow end plate extension arms 27 and the bore 7 together when the solenoid is powered off.
The air chamber 14, the solenoid shut-off valve 17, and the air inflow end plate 5 are connected via the external threaded connector 16 into an integral assembly, and the air chamber 14 is mounted on a slide track.
As shown in Fig. 5, the junction part between the air inflow end plate 5 and the bore 7 is sealed with a sealing gasket 6, a terminal end of the sealing gasket 6 is an elastic plate that is curved inward, the steel ball 8 is stopped in the bore by the elastic plate of the sealing gasket 6 that extends into the bore after the steel ball 8 is pushed into the bore 7 by the air inflow end plate 5, so that the relative rest of the steel ball 8 is achieved to facilitate launching.
The cam mechanism comprises a step motor 22, a cam 18, a second spring 25, a front extension arm 28 at air chamber side, and a rear extension arm 29 at air chamber side, wherein, one end of the front extension arm 28 at air chamber side is fixed to a fixed prop at a side of the air chamber 14, the other end of the front extension arm at air chamber side contacts with the cam 18 via a bearing 24, the bearing 24 is connected to the end part of the front extension arm 28 at air chamber side via a pin shaft 23, the cam 18 is in surface contact with the bearing 24, and the bearing can roll on the surface of the cam 18; one end of the rear extension arm 29 at air chamber side is also fixed to the fixed prop at a side of the air chamber 14, the other end of the rear extension arm 29 at air chamber side is fitted in the second spring 25 and then passes through a support prop fixed to a machine frame, and the rear extension arm 29 at air chamber side can slide in axial direction in a hole in the support prop; the cam 18 is connected to a shaft 20 via a key, the shaft 20 is supported by two pillow blocks 19, and the other end of the shaft is connected to an output shaft of the step motor 22 via a coupler 21, and thereby the cam mechanism is formed. Consecutive and intermittent launching can be realized by the cam mechanism described above; specifically, the step motor 22 drives the cam 18 to rotate in counter-clockwise direction, and the cam 18, the bearing 24 that is mounted as a roller on the front extension arm 28 at air chamber side, and the second spring 25 mounted on the rear extension arm 29 at air chamber side are assembled to form a cam mechanism; since the air chamber 14, the solenoid shut-off valve 17, and the air inflow end plate 5 are connected via the external threaded connector 16 into an integral assembly and the air chamber 14 is mounted on a slide track, the air inflow end plate 5 is also controlled by the cam mechanism to make periodic receding and feeding motion along the slide track; the shape of the cam is designed according to the required motion pattern; in the pushing process of the cam mechanism, the bearing 24 that serves as a roller and the entire moving body composed of the air inflow end plate 5, the solenoid shut-off
2015413420 11 Apr 2018 valve 17 and the air chamber 14 move away from the bore 7 to the furthest point; in the returning process of the cam mechanism, the roller and the entire moving body move towards the bore under the action of the second spring 25, and a steel ball 8 is loaded and pressed into the bore 7; and collision launching can be started after the entire assembly is locked up by the electromagnetic lock.
The actions and principle of the device provided in the present invention are as follows: the ball inlet tube 4 is filled with steel balls 4, and the solenoid shut-off valve 17 is in an Off state at that point; the air compressor 3 is started to inflate, and the step motor 22 is started at the same time, so that the cam 18 in the pushing process starts to rotate; at the same time, the electromagnet 13 is powered on, the air inflow end plate 5 and the bore 7 are unlocked, and the front extension arm at air chamber side 28 is pushed to left (Fig. 2) to separate the air inflow end plate 5 and the bore 7 from each other; then, the electromagnet 13 is powered off, the lock cylinder 10 is ejected out by the first spring 11, the air inflow end plate 5 recedes continuously under the action of the cam 18 till it reaches the furthest point; in this process, the ball pressing lever 26 fixed to the air inflow end plate 5 is moved to left along with the air inflow end plate 5 till the ball pressing lever 26 recedes out of the ball inlet tube 4, and, at that point, the steel ball 8 blocked by the ball pressing lever 26 falls down to a position A in the ball inlet tube 4; after the steel ball falls down, the cam 18 is in its returning process, the air inflow end plate 5 starts to feed under the action of the second spring 25, the ball pressing lever 26 presses the steel ball 8 out of the position A so that the steel ball 8 falls onto the ball receiving plate 9; as the air inflow end plate 5 feeds continuously, the steel ball 8 is pressed into the bore 7, the sealing gasket 6 mounted at the inlet of the bore 7 attain an effect of fixing the steel ball 8 in position and seal the clearance between the steel ball and the bore, so that the steel ball 8 cannot move in the bore 7; when the air inflow end plate 5 feeds to the nearest point, the extension arms 27 at the two sides move over the lock cylinder 10 and are locked; after the extension arms 27 are locked reliably, the solenoid valve 17 is opened, and high pressure air enters into the bore 7 through the air inflow end plate 5 and pushes and launches out the steel ball 8; after the steel ball 8 is launched, the solenoid valve 17 is closed, and the next cycle of inflating is started; in addition, the electromagnet 13 is powered on, the lock cylinder recedes, the air inflow end plate 5 and the bore 7 are separated from each other, and the next working cycle is started.
It should be understood that the person ordinary skilled in the art can make modification or variations on the basis of the above description. However, all such modification and variations are intended to be within the scope of the attached claims.
Throughout the specification, unless the context requires otherwise, the word “comprise” or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.
Each document, reference, patent application or patent cited in this text is expressly incorporated herein in their entirely by reference, which means that it should be read and considered by the reader as part of this text. That the document, reference, patent application, or patent cited in this text is not repeated in this text is merely for reasons of conciseness.
Reference to cited material or information contained in the text should not be understood as a concession that the material or information was part of the common general knowledge or was known in Australia or any other country.
2015413420 11 Apr 2018
Claims (2)
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4 26 5 6 7
27 10 11 12 13
Fig.5
1 A device for consecutively launching steel balls for collision testing of a ball mill, comprising an air compressor (3), a pressure reducing valve (2), an air chamber (14), a ball inlet tube (4), a bore (7), and a cam mechanism, wherein, the air chamber (14) is connected to the pressure reducing valve (2) via a soft tube (1), the pressure reducing valve (2) is connected to an air outlet of the air compressor (3), an air outlet of the air chamber (14) is connected to a solenoid shut-off valve (17) via an external threaded connector (16), the solenoid shut-off valve (17) is connected to an air inflow end plate (5) via the external threaded connector (16) and is configured to control the air outlet of the air chamber (14) to be open or close, and the cam mechanism is configured to enable periodic feeding and receding motion of the air inflow end plate (5) and thereby facilitate consecutively collision launching; the outside of the air inflow end plate (5) is fixedly connected to a ball pressing lever (26), the ball pressing lever (26) feeds and recedes together with the air inflow end plate (5); one end of the ball pressing lever (26) is inserted into a hole in the side wall of the ball inlet tube (4) and pushes a steel ball (8) to be loaded out of the ball inlet tube (4) in the feeding process of the ball pressing lever (26); the next steel ball in the ball inlet tube enters into a position to be loaded under gravity after the ball pressing lever (26) is receded out of the ball inlet tube (4); the steel ball (8) that is pushed out of the ball inlet tube (4) falls onto a ball receiving plate (9) on the lower part of the air inflow end plate (5) and follows the air inflow end plate (5) to a position to be launched in the bore (7); the solenoid shut-off valve (17) is opened and high pressure air enters into the bore after the air inflow end plate (5) and the bore (7) are locked in relation to each other with an electromagnetic lock, so that the steel ball (8) is launched.
2 The device for consecutively launching steel balls according to claim 1, wherein, the air pressure in the air chamber (14) is adjusted to a certain value for launching with the pressure reducing valve (2).
3 The device for consecutively launching steel balls according to claim 1, wherein, the start of the collision launching is realized and the air-tightness of the air chamber is ensured to attain specific pressure of the compressed air by controlling the solenoid shut-off valve (13) to be open or close.
4 The device for consecutively launching steel balls according to claim 1, wherein, the ball inlet tube (4) comprises four sections of round tubes that communicate with and are perpendicular to each other among every two of them, wherein, the first section is a horizontal round tube configured to store steel balls (8), the second section is a vertical round tube, the third section is a horizontal round tube, the connecting point between second and third section, is specified as position A where the steel ball is loaded, , the fourth section is a vertical round tube along which a steel ball falls down onto the ball receiving plate (9), the first section and the second section are in the same plane, the third section and the fourth section are in the same plane, and the two planes are perpendicular to each other; holes are arranged in the side walls of the second section and the fourth section of round tubes respectively, and the ball pressing lever (26) is inserted into the holes to push out the steel ball (8) in the feeding process of the ball pressing lever (26); the fourth section of round tubes is fixedly connected at the inlet of the bore (7) via bolts.
5 The device for consecutively launching steel balls according to claim 4, wherein, after a steel ball is pushed out by the ball pressing lever (26), the steel ball cannot enter into the position to be launched to avoid launching by mistake, because the ball pressing lever occupies the position to be loaded and can close the fourth section of round tubes.
6 The device for consecutively launching steel balls according to claim 1, wherein, the air inflow
2015413420 11 Apr 2018 end plate (5) and the bore (7) are detachably mechanically connected, and mechanical connection or disconnection between the air inflow end plate (5) and the bore (7) can be controlled with the electromagnetic lock; the ends of the air inflow end plate (5) are fixedly connected with two air inflow end plate extension arms (27), and a square hole is arranged in each of the air inflow end plate extension arms (27); the electromagnetic lock comprises an electromagnetic lock frame (12), a first spring (11), an electromagnet (13), and a lock cylinder (10), wherein, the electromagnetic lock frame (12) is connected to the bore (7), the electromagnet (13) is fixed to the bottom of the electromagnetic lock frame (12), one end of the first spring (11) is fixed to the lock cylinder (10), and the other end of the first spring (11) is fixed to the bottom of the electromagnetic lock; the lock cylinder (10) can move up and down in the electromagnetic lock frame (12), and the lock cylinder (10) recedes into the electromagnetic lock frame (12) under an adsorption action of magnetic force and the air inflow end plate extension arm (27) can move freely when the solenoid is powered on; the lock cylinder (10) is ejected out under the action of the first spring (11) and extends into the square holes in the air inflow end plate extension arms (10) to lock up the air inflow end plate extension arms (27) and the bore (7) together when the electromagnet is powered off.
7 The device for consecutively launching steel balls according to claim 1, wherein, the junction part between the air inflow end plate (5) and the bore (7) is sealed with a sealing gasket (6), a terminal end of the sealing gasket (6) is an elastic plate that is curved inward, the steel ball (8) is stopped in the bore by the elastic plate of the sealing gasket (6) that extends into the bore after the steel ball (8) is pushed into the bore (7) by the air inflow end plate (5), so that the relative rest of the steel ball (8) is achieved to facilitate launching.
8 The device for consecutively launching steel balls according to claim 1, wherein, the air chamber (14), the solenoid shut-off valve (17) and the air inflow end plate (5) are connected via the external threaded connector (16) into an integral assembly, and the air chamber (14) is mounted on a slide track.
9 The device for consecutively launching steel balls according to claim 1, wherein, the cam mechanism comprises a step motor (22), a cam (18), a second spring (25), a front extension arm (28) at air chamber side, and a rear extension arm (29) at air chamber side, wherein, one end of the front extension arm (28) at air chamber side is fixed to a fixed prop at a side of the air chamber (14), the other end of the front extension arm at air chamber side contacts with the cam (18) via a bearing (24), the bearing (24) is connected to the end part of the front extension arm (28) at air chamber side via a pin shaft (23), the cam (18) is in surface contact with the bearing (24), and the bearing can roll on the surface of the cam (18); one end of the rear extension arm (29) at air chamber side is also fixed to the fixed prop at a side of the air chamber (14), the other end of the rear extension arm (29) at air chamber side is fitted in the second spring (25) and then penetrates through a support prop fixed to a machine frame, and the rear extension arm (29) at air chamber side can slide in axial direction in a hole in the support prop; the cam (18) is connected to a shaft (20) via a key, the shaft (20) is supported by two pillow blocks (19), and the other end of the shaft is connected to an output shaft of the step motor (22) via a coupler (21), and thereby the cam mechanism is formed.
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Fig. 1
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510702810.6 | 2015-10-26 | ||
| CN201510702810.6A CN105387984B (en) | 2015-10-26 | 2015-10-26 | A kind of steel ball Consecutive launcher for ball mill impulse detection |
| PCT/CN2015/099156 WO2017071056A1 (en) | 2015-10-26 | 2015-12-28 | Device for consecutively launching steel balls for collision testing of ball mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2015413420A1 AU2015413420A1 (en) | 2017-10-19 |
| AU2015413420B2 true AU2015413420B2 (en) | 2018-04-26 |
Family
ID=55420526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2015413420A Ceased AU2015413420B2 (en) | 2015-10-26 | 2015-12-28 | Device for consecutively launching steel balls for collision testing of ball mill |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105387984B (en) |
| AU (1) | AU2015413420B2 (en) |
| WO (1) | WO2017071056A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796586B (en) * | 2017-10-20 | 2019-04-02 | 广州大冷王测控设备有限公司 | A kind of impact test case that can be carried out continuously impact test |
| CN111257011B (en) * | 2020-02-18 | 2021-03-26 | 清华大学 | Cam type automobile bottom supporting test device |
| CN114199575B (en) * | 2020-09-18 | 2023-08-01 | 中国航发商用航空发动机有限责任公司 | Noise elimination assembly, foreign matter impact test device and test method |
| CN112763355B (en) * | 2021-01-13 | 2023-04-11 | 安平县金龙车辆装备有限公司 | Glass intensity random collision detection equipment in intelligent manufacturing |
| CN112945010A (en) * | 2021-04-02 | 2021-06-11 | 李新亚 | Method for launching carrier rocket by boosting high-pressure compressed gas |
| CN113138060B (en) * | 2021-04-30 | 2023-03-28 | 安徽省三方新材料科技有限公司 | Detection device and detection method for impact force of wear-resistant ball for mine |
| 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 |
| CN115200870B (en) * | 2022-09-14 | 2023-02-17 | 中国航发四川燃气涡轮研究院 | Target adjusting method for bird swallowing test of aircraft engine |
| CN115235738B (en) * | 2022-09-21 | 2022-12-13 | 廊坊开发区中油新星电信工程有限公司 | Ground vibration test equipment for accurately positioning fault position of buried optical cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276353B1 (en) * | 1997-02-21 | 2001-08-21 | Koala Corporation | Projectile launcher |
| WO2007122719A1 (en) * | 2006-04-14 | 2007-11-01 | Tokyo Marui Co, Ltd. | Compressed air control device of air gun |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075307A (en) * | 2009-09-29 | 2011-04-14 | Mitsubishi Heavy Ind Ltd | Ice ball ejection apparatus and hailfall test method using the same |
| KR101023404B1 (en) * | 2010-07-27 | 2011-03-24 | 씨엠텍 주식회사 | Blasthose burst sensor of shot blaster |
| CN203396660U (en) * | 2013-07-17 | 2014-01-15 | 河北联合大学 | Device for detecting wear resistance of ceramic sample with small area |
| CN203564747U (en) * | 2013-12-02 | 2014-04-30 | 河北联合大学 | Volleyball trainer |
| CN203587347U (en) * | 2013-12-05 | 2014-05-07 | 中航商用航空发动机有限责任公司 | Air cannon applied to hail impact test |
| CN104089833B (en) * | 2014-07-22 | 2016-11-02 | 南昌航空大学 | A kind of pneumatic type is imitated son (big gun) and is launched the material impact assay device hit |
-
2015
- 2015-10-26 CN CN201510702810.6A patent/CN105387984B/en not_active Expired - Fee Related
- 2015-12-28 AU AU2015413420A patent/AU2015413420B2/en not_active Ceased
- 2015-12-28 WO PCT/CN2015/099156 patent/WO2017071056A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276353B1 (en) * | 1997-02-21 | 2001-08-21 | Koala Corporation | Projectile launcher |
| WO2007122719A1 (en) * | 2006-04-14 | 2007-11-01 | Tokyo Marui Co, Ltd. | Compressed air control device of air gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105387984B (en) | 2018-02-16 |
| CN105387984A (en) | 2016-03-09 |
| WO2017071056A1 (en) | 2017-05-04 |
| AU2015413420A1 (en) | 2017-10-19 |
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| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |