MXPA06011845A

MXPA06011845A - Chisel support adjustment arrangement and corresponding production plane .

Info

Publication number: MXPA06011845A
Application number: MXPA06011845A
Authority: MX
Inventors: Gerhard Siepenkort; Adam Klabish; Norbert Hesse; Klaus Duhnke; Berno Muehlenbrock; Diedrich Bettermann
Original assignee: Dbt Gmbh
Priority date: 2005-10-12
Filing date: 2006-10-13
Publication date: 2008-10-15
Also published as: CN1948709B; RU2006136066A; PL211895B1; CZ2006640A3; PL380809A1; RU2401945C2; CN1948709A; CZ304380B6; DE202005016177U1

Abstract

The arrangement has a worm wheel for interaction with a geared rod type toothing on the first chisel support (3), which can be attached to the plane body (2) as a module with a gear mechanism and an input shaft. The gear mechanism consists of a planetary gear that is interposed between the input shaft and the worm wheel. An independent claim is also included for a production plane with an inventive device. -.

Description

REGULATOR FOR STRETCH CHISEL SUPPORTS AND EXTRACTION SPRAYER WHO UNDERSTAND IT DESCRIPTION OF THE INVENTION The invention relates to a regulator for end chisel supports for front chisel supports that are arranged adjustable in height in the body of an extraction scraper, which regulator comprises a helical wheel that cooperates with a toothing of the type zipper of the support of front chisels, which is fixed to the friction body as a constructive unit in combination with a gear and an input shaft. The invention also relates to an extraction scraper with a support of front chisels which, with a rack-like toothing, is adjustable in its height in the friction body, and with a regulator for the support of front chisels that can be adjusted. insert in a cavity of the body of friction and fix it, which is made as a constructive unit and comprises an input shaft, a gear and a gear that cooperates with the toothing. A regulator for end chisel supports of the type under consideration as well as an extraction scraper of the type under consideration are known from DE 196 37 973 B4. In the regulator for supports of front chisels of the type under consideration the tree Inlet is accessible from the displacement side or the back side of the friction body and can be removed by retracting it as a constructive unit when releasing a fixing plate. By virtue of the fact that the axis of rotation of the helical wheel that intervenes with the rack must be perpendicular, a small helical wheel and a screw engage in the gear unit made as a compact gear. The adjustment of the support of front chisels is usually carried out by a miner. The effort required to adjust the support of front chisels is great, due to the construction method. The object of the invention is to create a regulator for front chisel supports as well as an extraction scraper comprising it in which, with little effort, a manual or optionally motorized displacement of the front chisel support is possible. This and other problems are solved in accordance with the invention in which the gear consists of a planetary gear that is sandwiched between the input shaft and the worm wheel. A planetary gear is extremely compact construction and simultaneously constitutes a force or torque multiplier that allows a change of height of the support of front chisels with a comparatively small effort.

Planetary gears in the configuration of torque multipliers are obtained commercially with transmission ratios of, for example, 5: 1, 25: 1 or 125: 1, whereby they reduce the effort of the user by the factor of 5. , 25 and 125. The use of a planetary gear configured as a torque or force multiplier can minimize the construction space required for the regulator for front chisel supports by virtue of its compact construction and simultaneously minimize the effort it must provide. the miner or a motorized drive. In accordance with a preferred configuration, the planetary gear is associated with rotation immobilization to a torque reaction plate. By means of a torque reaction plate or a suitable reaction arm, the internal gearing wheel of the planetary gear is immobilized, so that the planetary wheels existing in the planetary gear are rotated, most often three or four times. of them arranged in a support of planetary wheels, whose teeth mesh with a main wheel and can rotate with it. In this respect, it is particularly advantageous if the planetary gear is arranged in a closed, compact gearbox, to which the internal gear wheel is then pivotally connected. A form of Particularly compact construction of the constructive unit is obtained if the torque reaction plate forms part of a cup-shaped housing component for the planetary gear. The pivoting immobilized connection can then be obtained in particular by joining the gearbox of the rotationally fixed planetary gear to the bottom of the housing part by means of bolted connections. In a particularly preferred configuration, the torque reaction plate comprises at least one projection, but preferably two protrusions opposed by 180 ° to balance the reaction plate on its support and counteract an inclination of the planetary gear. In the particularly preferred configuration of a regulator for end chisel supports according to the invention, the constructive unit comprises, fixed in an immobilized form of rotation to the friction body, a end plate with a passage for the input shaft and a support for a reaction plate of torque or arm, torque reaction in the planetary gear. In the simplest configuration, the end plate can comprise a cavity for this purpose in its lower part for the positively-coupled housing of the torque-reaction reaction plate or respectively the reaction torque arm of the gear planetary. For simultaneously with little assembly expense allow a favorable fixation. from the construction unit to the friction body, the end plate may comprise two lateral wings with screw passages for fastening screws as well as with dowels protruding downwards. The protruding pins of the lower part can then cooperate in positive connection with the corresponding recesses in the friction body, by means of which the immobilized rotation support of the end plate and thus of the entire assembly in the body of friction. It is additionally favorable that between the side wings the head plate has cut-outs of the edge which leave the helical rack partially exposed at the height of the helical wheel. This configuration has the particular advantage that due to the free access of the worm wheel it is possible to detach in a relatively simple way depositions of fine coal or the like by means of a washing with air and / or water, which is difficult or impossible in the case of difficult access helical wheels. In a scraper conveyor according to the invention with a regulator for end chisel supports comprising a planetary gear as a force multiplier, it is particularly advantageous if the unit with the end plate is can insert from above into the body of friction and respectively extract from this pulling up. The construction unit is structured in particular so that the input shaft protrudes upwards through the end plate with a multi-edge shank to which a tool or a motor can be applied, so that the input shaft can be act from the upper part of the friction body. Other advantages and configurations of the invention are apparent from the following description of an exemplary embodiment of an extraction scraper with a regulator for end chisel supports according to the invention shown schematically in the drawing. Figure 1 a plan view on a friction body of a coal scraper with regulation of the front chisel; 2 shows a schematic sectional view along the line II-II of FIG. 1; 3 shows a regulator for end chisel supports according to the invention, in side elevation view; Figure 4 the regulator for end chisel supports of figure 3 in top plan view; and Figure 5 the regulator for end chisel supports of figure 3 in perspective, in a view in cutting The extraction chaser that in figures 1 and 2 is designated in its entirety with the reference symbol 1In particular, the coal scraper can be pulled as a sliding scraper or wedge scraper along a guide that is not represented in a major way, mounted on a conveyor driven from below, and comprises, in a manner known per se, a scraping body 2 to which the chisel supports, not mainly represented, with which the carbon is cut at the level of the friction body 2 are fixed rotatably. Centrally in the rubbing body 2 of the extraction scraper 1 is disposed a support 3 of front chisels that houses for replacement several chisels 4 processors, of which in figure 2 only one is shown schematically. The support 3 of head chisels is of adjustable height by means of a regulator 10 for supports of front chisels arranged in an open cavity upwards of the friction body 2, and for this purpose comprises a base plate 5 in the manner of a skate that is laterally guided. in vertical guides 6 of the friction body 2"and in its rear part of the displacement side is provided with a toothing 7 configured in the manner of a vertical rack, in the toothing of the rack involving a helical wheel 11 with the steps 12 of thread that constitute the endless screw for,. rotation of the helical wheel 11 in one or the other direction making an elevation or descent of the support 3 of front chisels and consequently a variation of the effective exploitation height of the extraction scraper 1. The regulator 10 for end chisel supports is shown in detail in FIGS. 3 to 5, to which reference is now made. The regulator 10 for end chisel supports is realized as an extremely compact structural unit and can be mounted and. disassemble as a constructive unit in the cavity of the extraction scraper. To fix the regulator 10 for chisel supports to the friction body of the scraper. end pieces comprises a tester plate 13 to which all the components are rotatable, including the helical wheel 11 comprising the thread pitch 12. On both sides of a central passage 14 for an input shaft 15 the head plate 13 is provided with two side wings 16 in which in each case several screw passages 17 are configured to receive fixing screws which are screwed into associated threaded holes. on both sides of the housing (8, figure 2) in the friction body 2. In the lower part 13 'of the head plate 13 also protrude 18 that engage in corresponding recesses of the friction body to fix immobilized rotation in the body of friction the plate 13 te.stera and consequently the entire of regulator 10 for front chisel supports during use. The input shaft 15 is in this case made as bushing part 16 with a short shaft portion whose exposed shaft section is made as a hexagonal head 21 and its lower output section as a square head 22. The square section 22 located inside the bushing intervenes on the input side in a planetary gear 23 which, in the form of a compact construction, is provided with an outer casing 24 in which, in a manner known per se and therefore not shown an internal toothed wheel attached to it is arranged to be immobilized by rotation, an immobilized pivoted main wheel with the gear inlet or the square section 22 of the input shaft, as well as planetary wheels disposed between them and coupled through a support of planetary wheels with the output square 25 of the planetary gear 23. The planetary gear 23 constitutes a force multiplier or a torque multiplier with a transmission ratio of, for example, 5: 1 or 25: 1. The planetary gear 23 is inserted with its case 24 into a cup-like housing part 26 which at its bottom 28 has a passage 27 for the output square 25 of the planetary gear 2.3. Box 24 is screwed immobilized to the bottom 28 of the housing part 26 by means of numerous fixing screws 30. The cup-shaped housing part 26 is provided on its upper part with a flange 31 constituting a torque reaction plate with two ends or projections 32 opposed by 180 ° which can be positively inserted into a recess 33 of suitable configuration in the lower part 13 'of the tester plate 13, to derive the reaction force caused by the multiplication of force to the front plate 13 and consequently to the friction body of the extraction scraper. In the output square 25 of the planetary gearing 23, the helical wheel 11 is mounted in turn, immobilized by rotation, with the thread pitch 12 that intervenes in the toothing of the chisel holder. As shown in particular by Figures 1, 4 and 5, the screw spiral formed by the thread pitch 12 of the helical wheel 11 is relatively exposed in the head plate 13 between both wings 16 of the head plate 13 by virtue of the edge recesses or edge restraints stamped between both side wings 12, and the screw spiral can be accessed freely from above, so that in the assembled state of the chisel holder regulator 10 it is possible to clean the housing 8 in the basic rubbing body 2, for example, with a pressure hose without it.

It is necessary to disassemble other parts. For the expert, numerous modifications that fall within the scope of protection of the appended claims result from the foregoing description. The reaction plate for supporting the turning torque can also be connected to the external gearbox of the planetary gear and / or additionally supported by screw connections between the reaction plate and the head plate or the basic friction body.

Claims

1. Regulator for end-face chisel supports for height-adjustable chisel holders arranged in the friction body of an extraction scraper, with a helical wheel to cooperate with a rack-like toothing of the front chisel holder which is fixed in combination with a gear and an input shaft as a constructive unit to the friction body, characterized in that the gear is constituted by a planetary gear that is interposed between the input shaft and the helical wheel.

2. Regulator "for end chisel supports according to claim 1, characterized in that the planetary gear is associated with a rotating torque plate or a torque reaction arm.

3. Regulator for end chisel supports according to claim 1 or 2, characterized in that the planetary gear is arranged in a closed compact gearbox.

4. Regulator for end chisel supports according to claim 2, characterized in that the torque reaction plate is an integral part of a cup-shaped housing part for the planetary gear.

5. Regulator for end chisel supports according to claim 3 or 4, characterized in that the outer box of the planetary gear is attached immobilized by rotation with the bottom of the housing part by means of screw connections.

6. Regulator for end chisel supports according to one of claims 2 to 5, characterized in that the torque reaction plate comprises at least one projection, preferably two projections that are opposed by 180 °.

7. Regulator for end chisel supports according to one of claims 1 to 6, characterized in that the constructive unit comprises, fixed to the friction body in immobilized form of rotation, a head plate having a passage for the input shaft and a support for a torque reaction plate or a torque arm for the planetary gear.

8. Regulator for end chisel supports according to claim 7, characterized in that in its lower part the head plate comprises a recess for positively receiving the torque reaction plate for the planetary gear.

9. Regulator for end chisel supports according to claim 7 or 8, characterized because the tester plate comprises two lateral wings with screw passages for fixing screws and pins protruding from its lower side.

10. Regulator for end chisel supports according to claim 9, characterized in that between the side wings the end plate comprises edge recesses that partially expose the screw spiral of the worm wheel.

11. Extraction rocker with a support of front chisels that is guided adjustable in its height in the friction body and with a · regulator of the support of front chisels made as a constructive unit and comprising an input shaft, a gear and a wheel helical which cooperates with the toothing of the front chisel support, which is inserted and fixed in a cavity of the friction body, characterized in that the gear consists of a planetary gear and the regulator for supports of front chisels is configured in accordance with one of the claims 1 to 10.

12. Extraction scraper according to claim 11, characterized in that the constructive unit with the end plate is inserted from above into the friction body or is extracted from this pulling upwards.