| Document identification |
DE19754320C1 05.08.1999 |
| Title |
A device for measuring the gap width at a cone crusher |
| Applicant |
Wild, Reinhard, 09456 Annaberg-Buchholz, DE |
| Inventors |
Wild, Reinhard, 09456 Annaberg-Buchholz, DE |
| Representatives |
Seerig & Huebner, 09111 Chemnitz |
| DE Registration Date |
08.12.1997 |
| EN-document |
19754320 |
| Publication of the patent |
05.08.1999 |
| Date of filing |
05.08.1999 |
| IPC main class |
B02C 2/00
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| IPC coset |
B02C 2/04
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| Summary |
The invention relates to a device for measuring the gap width in a cone crusher.
objective of the invention is to provide a device for measuring the gap width in a cone crusher, which enables simple and safe and sufficiently accurate clearance measurements.
According to the invention this object is achieved in that a gas-filled elastic constant in the surface bubbles (11) which is connected to a pressure measuring and evaluation device (9) by a non-extensible hose (10) in staggering impact movement of the crushing cone (2) with respect to the crusher shell (8) in a crushing chamber between the two is arranged in and executed, wherein the bladder (11) is contracted to the minimum gap width of the crushing chamber and thereby the pressure measuring and evaluation unit (9) indicative of the gap width during passage through the crushing chamber depending on the maximum pressure, and the largest diameter of said bladder (11) is not larger than the smallest gap plus Kegelhub.
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| Description [en] |
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The invention relates to a device for measuring the gap width at a cone crusher between a conical crusher mantle and a crushing cone, wherein, in a case of the cone crusher is a vertical drive shaft is mounted in alignment with the crusher casing, whose upper end has a slight inclination to the axis of the crusher shell, and in this Area is crushing cone, which is supported by bearings on it.
From DE 33 30 586 A1, a cone crusher, in which in a housing has a vertical drive shaft is mounted in alignment with a conical crusher shell, the upper end has a slight inclination to the axis of the crusher shell, and in this field carries a crushing cone on to at least one radial bearing and a thrust bearing disposed at its end rests against her. The cone crusher is subject to high wear and tear because of the crushing cone crusher mantle to the running tumbling like flapping movements, exerted by the hammer-like blows without interruption on a on a circular zone falling down crushed material. The gap width between the crusher and cone crusher mantle changed due to wear. Further, the gap width has to be adjusted to achieve the required size of the material to be broken. This is axially displaced in the mechanical cone crusher, the crusher mantle or cone crusher. In order to determine the nip width, a lead piece is inserted into the nip where the gap width is molded. Come hydraulic cone crusher is used, the gap width is determined by the fact that crushing cone crusher mantle and moved together to the touch and a nulling is achieved. This can lead to deformation of the shell and of the crushing cone crusher. Zeroing of this proceeding, the gap width is adjusted.
Another way to measure the gap between the cone crusher and crusher mantle is known from AT 379761st The invention essentially consists in that the slit width can be determined by measuring the stroke position of the crushing cone by means of a crushing cone which acts on the transducer. This invention has the disadvantage that the wear of the crushing cone crusher mantle and the effect on the slit width, is not taken into account when setting the stroke position of the transducer based on the measured values. This increases with the stroke position of a measured particle size of the crushed material with the progress of wear. Furthermore, the measuring device is very susceptible to interference by the rugged reaches of the cone crusher. No wonder the electrical cable for the transducer in a tank pipe shall be performed by the intended task for the material to be crushed annulus and protected by roofing.
The object of the invention is to provide a device for measuring the gap width at a cone crusher of the type mentioned which allows a simple and safe and sufficiently accurate measurement of the gap width.
According to the invention the object is achieved in that a gas-filled elastic constant in the surface bubble which is connected by a non-stretchable tube having a pressure measuring and evaluation device, wherein tumbling striking movement of the crushing cone with respect to the crusher shell in a crushing chamber between the two incoming and disposed executed, wherein the bubble is contracted to the smallest gap width at the outlet of the crushing chamber and thereby the pressure measuring and evaluation unit depending on the pressure change of the gas in the bladder indicates the gap width passing through the crushing space, and the maximum diameter of the bubble do not is larger than the smallest gap width at the outlet plus Kegelhub.
The invention of an exemplary embodiment will be explained. The drawing shows a sectional view of a cone crusher crushing cone and in the range of crusher mantle. The view shows part of a cylinder-shaped housing upper part 1 of a cone crusher. The upper housing part 1 rests on a ring-shaped support member 3, which is connected to a support ring 4th Not shown in the lower housing part, the drive shaft for the eccentric cone 5 of the support 6 is mounted crushing cone with second A bayonet ring at a short distance 7 is disposed above the support ring 4, which acts on the breaker casing 8 and provides fixed clamping of the crusher casing 8 within the support elements 3 and 4. On the upper housing part 1, a pressure measurement and evaluation device 9 is mounted. These pressure and evaluation device is connected to a hose 9 10th The other end of hose 10 leads to a gas-filled, resilient bladder 11, spherical Before measuring the gap width, the pressure measuring and evaluation device 9 is calibrated. To the change in pressure of the gas in the bladder 11 is determined at different Auslaßspalte provided by measuring and evaluating the pressure measuring and 9 calibrated using this value, so that pressure can be displayed as a gap width between the crushing cone 2 and the crusher casing eighth The measurement of the gap width is carried out as follows: In the cone crusher, the idling of the bladder 11 is inserted into the gap between the crushing chamber 2 and crushing cone crusher mantle tube 8 on 10th Subsequently, the bladder 11 to the hose 10 is pulled out of the gap, wherein the bladder 11 through different gap widths having different pressures, which are measured by the pressure measuring and evaluation device 9 and displayed as a gap width setting. The way of the bladder 11 is determined by the length of each tube. This measuring device is also applicable to jaw crushers.
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| Claim [en] |
- Carrying device for measuring the gap in a cone crusher between a conical crusher mantle and a crushing cone, wherein, in a case of the cone crusher is a vertical drive shaft is mounted in alignment with the crusher casing, whose upper end has a slight inclination to the axis of the crusher casing and in this area the crushing cone which by means of bearings supported on it, characterized in that a gas-filled elastic constant in the surface bubbles (11) which is connected to a pressure measuring and evaluation device (9) by a non-extensible hose (10) in wobbling striking movement of the crushing cone (2) with respect to the crusher shell (8) is arranged on and executable in a crushing chamber between the two, wherein the bladder (11) is contracted to the smallest gap width of the crushing chamber and thereby the pressure measuring and evaluation unit (9) as a function by changes in pressure of the gas in the bladder (11) while passing through the crushing space indicating the gap width, and the maximum diameter of the bubble (11) is not larger than the smallest gap width at the outlet plus Kegelhub.
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Patent (PDF)
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