EP2556935A2 - Installation de mélange de béton - Google Patents

Installation de mélange de béton Download PDF

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Publication number
EP2556935A2
EP2556935A2 EP12005449A EP12005449A EP2556935A2 EP 2556935 A2 EP2556935 A2 EP 2556935A2 EP 12005449 A EP12005449 A EP 12005449A EP 12005449 A EP12005449 A EP 12005449A EP 2556935 A2 EP2556935 A2 EP 2556935A2
Authority
EP
European Patent Office
Prior art keywords
advantageously
concrete mixing
rail
mixing plant
bucket
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.)
Withdrawn
Application number
EP12005449A
Other languages
German (de)
English (en)
Other versions
EP2556935A3 (fr
Inventor
Reiner Bartsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Mischtecknik GmbH
Original Assignee
Liebherr Mischtecknik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liebherr Mischtecknik GmbH filed Critical Liebherr Mischtecknik GmbH
Publication of EP2556935A2 publication Critical patent/EP2556935A2/fr
Publication of EP2556935A3 publication Critical patent/EP2556935A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
    • B28C7/08—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips
    • B28C7/0835—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers
    • B28C7/0847—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers the skips being hoisted along vertical or inclined guides
    • B28C7/0852—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers the skips being hoisted along vertical or inclined guides and being tilted in their upmost position for discharging them at their upper side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B66B9/193—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure with inclined liftways

Definitions

  • the present invention relates to a concrete mixing plant with a feeder elevator, wherein the feeder elevator comprises a feeder bucket, which can be moved by a drive along a guide.
  • Such feeder lifts are commonly used to convey the weighed material from the weigh belt to the mixer of the plant in horizontal concrete mixing plants, since the mixer is usually arranged in an elevated position.
  • the feed bucket is pulled, for example via a cable winch drive a defined path up to the mixer.
  • Object of the present invention is to improve the reliability of such a concrete mixing plant.
  • this object is achieved by a concrete mixing plant according to claim 1.
  • the concrete mixing plant according to the invention comprises a feeder elevator with a feeder bucket, which can be moved by a drive along a guide.
  • the feeder elevator is equipped with a fall protection.
  • the fall protection prevents, for example, in the event of a failure of the drive an uncontrolled crash of the feed bucket, and thus prevents the feed bucket damaged the concrete mixing plant.
  • the fall protection is in particular designed so that it is at a speed of the feed bucket down, which is above a predetermined speed, triggered and prevented by slowing down or setting the feed bucket uncontrolled driving down.
  • the vertical conveying height of the feeder elevator according to the invention can be, for example, between 3 m and 15 m, advantageously between 6 m and 12 m.
  • the total mass of the loading bucket in the loaded state can be between 1 t and 20 t, advantageously between 5 t and 10 t.
  • the fall protection comprises at least one safety device which is connected to the charging bucket and which cooperates with a catching rail.
  • the safety gear is triggered and mechanically brakes the fall of the feed bucket on the safety rail.
  • the catch rail can run along the path of the feed bucket. As a result, the catching device automatically moves along the trajectory during a movement of the charging bucket along its path.
  • the catch rail runs parallel at a certain distance from a rail of the guide of the feed bucket.
  • the arrester rail is a separate element, so that the fall arrest device according to the invention can also be retrofitted on existing loading elevators without a change to the running rail of the bucket guide.
  • the catch rail can be mounted on a running rail of the guide, so that the braking torques are dissipated when triggering the fall protection in the anyway stably designed rail.
  • the assembly can be carried out via fasteners which are mounted on the running rail and on which the catching rail is mounted.
  • a plurality of fastening elements arranged at a certain distance from one another along the travel rail can be used.
  • the catch rail is supported so that it can be moved against a braking force when the fall arrester is triggered in order to absorb braking energy. This prevents that most of the braking energy is initiated in triggering the fall protection in the holder of the feed bucket. Rather, according to the invention, the braking energy is now introduced into the holder of the catching rail, in particular in the guide rail, when the catching rail is attached to the guide rail as described above.
  • the safety gear is connected to a damping device, which dampens the braking movement when the fall arrester is triggered.
  • the safety gear can be connected via the damping device to the carriage on which the feed bucket is suspended, so the carriage with the feed bucket at Triggering the fall protection is slowed down softly.
  • a damping device can be used, for example, suitable mechanical, pneumatic or hydraulic damper.
  • the catch rail is thereby frictionally attached to a holder and movable up to an end stop in the longitudinal direction.
  • the catching rail can be fastened by means of clamping screws, in particular to the fastening elements described above.
  • the clamping screws may include the catch rail, for example, on both sides.
  • the catching rail used according to the invention may be particularly preferably designed as an elongate profile and / or have a T-shaped profile, being fastened on both sides with the head side and engaging the catching device on the foot side projecting from the head side.
  • the guide for the feed bucket on two rails, in or on which a carriage is guided, on which the feed bucket is arranged.
  • the loading bucket can be moved on this carriage along the guide from bottom to top.
  • the feed bucket is suspended from the carriage so as to be rotatable about a horizontal axis of rotation. This allows in particular a pouring the feed bucket by pivoting relative to the car.
  • the carriage may have two each guided over rollers or sliding elements in or on a running rail side parts and connecting them cross member.
  • the feed bucket can be rotatably mounted on the side parts.
  • the transverse element is in an upper region arranged the side parts and connects them there.
  • On the cross member can also attack the drive of the feeder elevator.
  • a winch drive can be used to move the feeder elevator.
  • the rope engages the carriage on which the feed bucket is arranged, in particular on the transverse element of the carriage.
  • a roller may be arranged on the transverse element, around which a cable is guided, which is driven by a winch.
  • the winch can be arranged, for example, in an upper region of the feeder elevator.
  • the at least one safety device according to the invention is arranged on the carriage.
  • This arrangement has the advantage that the position of the safety gear depends solely on the position of the car within the guide so that the loader bucket can be rotated without the safety gear changing its position. As a result, the engagement of the safety gear is simplified with the catch.
  • the catching device is arranged in the region in which the side parts are connected to one another by the transverse element.
  • the braking force is thereby introduced to the car above the suspension of the feed bucket.
  • this position has the advantage that the car is usually rotated only relatively slightly in this area. This also facilitates the arrangement of the safety gear and their interaction with the other components.
  • At least two catching rails are provided, with which in each case cooperates a catching device connected to the loading bucket. This allows a uniform deceleration of the feed bucket and prevents tilting.
  • the catch rails may each be arranged on a running rail and / or the safety gear may be arranged on the carriage on which the feed bucket is suspended.
  • the two safety gears can be arranged on both sides of the carriage on which the feed bucket is suspended. As a result, the car is braked on both sides.
  • the triggering mechanisms of the two safety gears are coupled together.
  • this coupling can be followed by a shaft which extends from one safety gear to the other safety gear and couples the triggering mechanisms to one another by means of its rotational movement.
  • the fall arrest according to the present invention may further comprise a governor rope over which the safety gear is triggered.
  • the governor rope is controlled via a speed limiter. If, therefore, the speed of the charging bucket exceeds a certain limit, the safety gear is advantageously released via the governor cable and brakes the charging bucket.
  • the regulator cable can be guided over at least two circulation rollers along the path of the charging bucket and be connected at both ends with a trigger mechanism of the safety gear.
  • the governor rope runs along with the movement of the feed bucket, so that the movement speed of the governor rope corresponds to that of the feed bucket.
  • a speed limiter is coupled to the governor rope and blocks this when a predetermined speed is exceeded in the downward direction.
  • one of the circulation rollers can be designed as a speed limiter.
  • the speed limiter can operate on the basis of a centrifugal force arrangement.
  • one of the circulation rollers can be movably mounted, and serve for tensioning the governor rope.
  • the fall protection can continue to switch off the drive of the feeder elevator in the event of a fall.
  • an electrical switch triggered by the speed limiter is provided, which switches the feeder elevator de-energized.
  • the safety gear after release by driving the feed bucket by a certain distance is upwards solvable. Therefore, if the problem that has led to a crash of the charging bucket, fixed, the feeder elevator can be put back into operation simply by driving the feed bucket up.
  • the safety gear according to the invention may have a clamping element which clamps in the engaged state with the catch rail.
  • this clamping element is thereby brought by the triggering device of the catching device with the catch rail in contact and supported on an oblique plane, so that it is clamped by the further downward movement of the feed bucket against the catch rail.
  • the clamping element may be a pinch roller.
  • the feed bucket can be guided in a lower region of the guide on a curved path, wherein the safety device comes out of engagement with the catch rail before entering the curved path.
  • the catching device connected to the feed bucket is also rotated at least or moved on a curved path, would otherwise run the catch around a curve, which would make the construction much more complex.
  • the catch rail is running and ends before the beginning of the curved path.
  • the feed bucket be guided in a lower portion of the guide on a curved path, wherein the two ends of the governor rope are pivotally connected to the Austensemechanismus and thus allow a certain rotation of the safety gear relative to the release cable.
  • the safety device can be rotated without this leading to unnecessary tension on the governor cable.
  • the articulation takes place via a pivotable on the trigger mechanism hinged coupling part to which the ends of the governor rope are attached.
  • the coupling part can be arranged on a lever which triggers the triggering mechanism of the safety gear.
  • the feed bucket be guided in a lower region of the guide on a curved path, wherein the conditional by the curved path of the feed bucket rotation or cornering of the safety gear is compensated via a movably arranged lower roller of the governor rope.
  • the movable support of the lower circulation roller also serves for tensioning the governor rope. Furthermore, it can be provided that the lower circulation roller is arranged on a lever arm, which is biased by clamping means.
  • the lever arm thus allows for a tensioning of the governor rope, and on the other a certain freedom of movement of the safety gear at a Turning the feed bucket.
  • the clamping means may be a weight or a spring.
  • the carriage on which the feed bucket is suspended, guided by an upper and a lower pair of rollers on or in the guide rails of the guides.
  • the curved path is designed so that it turns in a lower region of the otherwise straight guide.
  • the guide ends before the upper guide roller has left the straight part of the guide.
  • the upper part of the carriage is only rotated in the region of the curved path.
  • the safety gear is arranged in this area, so that the safety gear is rotated substantially and at least only slightly moved on a curved path.
  • the feeder elevator according to the invention transports material to the mixer of the concrete mixing plant.
  • the mixer is usually arranged elevated, so that the material must be transported to this up. Furthermore, it can be provided that the path of the feed bucket extends obliquely upwards.
  • the feeder lift can pick up material from a weigh belt of the concrete mixing machine.
  • the feed bucket is moved over a cable along the guide.
  • the feed bucket in a central region of the guide can be freely rotatably suspended on the car.
  • the feed bucket is tilted in the upper region of the guide via an additional guide rail.
  • the guide rail engages on an element arranged on the bucket itself, in particular a guide roller.
  • the present invention further comprises a fall protection for a concrete mixing plant, as described above.
  • the fall protection comprises at least one safety gear, as well as at least one safety rail, with which the safety gear cooperates.
  • the fall protection further comprises fastening elements, by means of which the catching rail can be fastened to a running rail of a loading elevator, in particular in parallel at a certain distance from the running rail.
  • the fall protection comprises a governor rope and / or a speed limiter, over which the safety gear is triggered. Further advantageously, the fall protection is otherwise carried out as was shown in detail above with regard to the concrete mixing plant.
  • the present invention comprises a feeder elevator for a concrete mixing plant, as has been shown above, with a fall protection according to the invention.
  • this feeder elevator is designed as already described in more detail above.
  • the present invention thus provides a fall protection for a feeder lift or a feeder lift with such a fall protection available, which ensures a previously unknown for concrete mixing plants security when operating the feeder elevator.
  • FIG. 1 shows an embodiment of a feeder elevator, which can be used in a horizontal concrete mixing plant according to the invention.
  • the feeder lift serves to convey weighed material from the weighing belt, not shown, to the mixer 8 of the system.
  • the feeder elevator has a feeder bucket 1, which can be moved along a guide 2 via a drive 9.
  • the feeder bucket is arranged for this purpose on a carriage 10, which is guided over rollers 11 in lateral rails 2 of the guide.
  • the path of the charging bucket in this case runs obliquely upward in the exemplary embodiment.
  • a winch 9 is provided, the rope on the carriage 10 of the feed bucket 1 attacks and this can raise and lower. The feeder bucket is thus pulled with the help of the rope over a defined path up to the mixer.
  • the vertical conveying height of the feeder elevator according to the invention can be, for example, between 3 m and 15 m, advantageously between 6 m and 12 m.
  • the total mass of the loading bucket in the loaded state can be between 1 t and 20 t, advantageously between 5 t and 10 t.
  • the feeder elevator is now equipped with a fall protection, which prevents uncontrolled down driving the feed bucket 1.
  • a fall protection which prevents uncontrolled down driving the feed bucket 1.
  • the fall protection according to the invention comprises safety gear 3, which cooperate with catching rails 4.
  • the catching rails 4 run parallel to the rails 2 of the guide of the charging bucket and are fastened by fastening elements 40 thereto.
  • the safety gears are located on the trolley 10 of the hopper and are triggered when the speed of the bucket in the downward direction exceeds a certain limit. In this case, a friction element of the catching elements engages with the catching rail and thus brakes the loading bucket.
  • FIG. 2 shows the structure of the loader lift with the fall protection in a view along the Beschickerbahn.
  • the carriage 10 of the feed bucket 1 can be seen, which is composed of two side parts 15 and a cross member 16 connecting them in the upper region.
  • the rollers 11 are arranged, which run in the rails 2 of the guide.
  • a guide roller 12 is arranged, over which the rope of the cable winch drive is guided.
  • the rails 2 of the feeder elevator are mounted on lateral support struts which are connected to each other via an elevator bed 14. At the rails 2 are each the catch rails 4 fall protection over in Fig. 2 not shown fasteners supported.
  • each safety gear 3 On the carriage 10 are each arranged on the side members 15 in the region of the transverse connection 16 each safety gear 3, which engage the catching rails 4.
  • the safety gears 3 are each triggered by a trigger mechanism 17, wherein the two trigger mechanisms of the safety gear are coupled via a rotatable shaft 18.
  • the triggering of the safety gear takes place via a regulator cable 5, which runs parallel to the catch rails 4 and the rails 2 via an upper guide roller 6 and a lower guide roller 7.
  • the governor rope is arranged in the embodiment only on one side, since the other safety gear is triggered on the other side via the connecting shaft 18 with.
  • the governor rope is in communication with the release mechanism of the safety gear 3 and moves with the feed bucket 1 with.
  • the upper deflection roller 6 is designed as a speed limiter, which stops the movement of the governor rope 5 when the speed downwards exceeds a certain limit.
  • an electrical contact can be provided on the speed limiter, via which the feeder lift is completely de-energized when the fall arrestor is triggered.
  • FIG. 3a shows the feeder bucket in a position approximately in the middle of its path.
  • the feed bucket 1 is rotatably suspended on the carriage 10 to be emptied in the upper area can.
  • a pair of rollers 13 is provided on Beschickerkübel 1, which cooperates with guideways 41 and the Beschickerkübe! 1 tilts in the upper area so that the contents of the feed bucket is emptied into the mixer 8, as in Fig. 3b is shown.
  • the charging bucket 1 has a first opening 19, via which it can be filled in the lower region, and a second opening 20, via which the material is introduced into the mixer 8. Due to the arrangement of the safety gear 3 on the carriage 10 whose movement, however, is independent of the tilted position of the feed bucket relative to the car, so that the feed bucket can be rotated without influencing the anti-rotation device.
  • the guide rails 2 for the feed bucket in the middle and upper region are rectilinear.
  • a rail element 23 is provided, which has a smaller pitch than the main region of the rails.
  • the carriage 10 is guided in the lower region on a curved path, wherein the lower rail member 23 is so short that the upper rollers of the carriage remain in the straight region of the rails.
  • the side parts 15 of the carriage are arranged between the rails 2 and can be pivoted out of the web, as in the lower part of FIG. 1 is dargterrorism.
  • FIG. 4 shows the upper deflection roller 6 of the governor rope, which is designed as a speed limiter.
  • the deflection roller 6 is at the upper end of the feeder carriageway via a mounting bracket 22 mounted with a certain distance to the rails 2.
  • the speed limiter 6 monitors via a centrifugal force backup the speed of the governor rope and thus the speed of the feed bucket in the downward direction.
  • the governor rope 5 runs parallel to the arrester rail 4.
  • Fig. 5 shows the lower guide roller 7 for the governor rope 5, which is arranged over a mounting bracket 24 in the lower region of the guide rails 2.
  • the deflection roller 7 is arranged in the region in which the less steep rail element 23 of the guide opens into the straight portion of the raceway 2.
  • the deflection roller 7 is mounted on a lever 25, which holds the governor rope 5 to tension via a tension weight 26 and also allows a certain mobility of the governor rope 5.
  • the safety device 3 is shown in more detail, which is arranged on the side part 15 of the carriage 10 in the region of the transverse connecting element 16.
  • the safety gear runs during a movement of the car along the catch rail.
  • the safety gear 3 is guided on the catch rail 4 via rollers 33.
  • the safety gear 3 has a triggering mechanism 17, on which the rotating governor cable 5 is fastened with its two ends 36.
  • the attachment of the governor rope 5 to the triggering device 17 takes place via a coupling element 34, to which the two ends of the governor rope are attached.
  • the articulation element 34 is rotatably attached to the trigger mechanism 17 via an axle 35, so that the safety gear can be rotated relative to the governor cable.
  • the trigger mechanism 17 consists of a lever which pulls a clamping member 30 via a connecting link 29 in its engaged position.
  • the lever is attached to the shaft 18, which simultaneously connects the two safety gears, attached and rotatably supported by this.
  • the speed controller triggers and blocks the governor rope.
  • the release can be done in particular by a moving centrifugal lever of the speed controller. Due to the blockage of the regulator cable, the triggering mechanism 17 of the safety gear is actuated, so that the safety gear engages.
  • a pinch roller 30 is provided, which with the in FIG. 6 catching rail, not shown, gets stuck and brakes the case of the loading bucket.
  • the catching rail runs between a first clamping block 32 and the clamping roller 30, which in turn is arranged between the catching rail and a second clamping block 31.
  • the terminal block 31 extends obliquely to the surface of the catch rail and thus brings in a movement of the pinch roller 30 via the linkage 29, the pinch roller 30 with the catch rail into engagement and ensures jamming of all elements.
  • pinch roller 30, clamping blocks 31 and 32 and the braking region of the catching rail 37 is again in FIG. 7 shown in a section.
  • the braking region 37 of the catching rail 4 is clamped between the clamping block 32 and the clamping roller 30, which in turn clamps with the oblique edge of the clamping block 31.
  • the safety gear is accordingly engaged and the pinch roller mechanically brakes the fall of the feed bucket on the arrester rail.
  • the charging bucket only has to be moved upwards over a short distance so that the safety gear returns automatically.
  • FIG. 7 The attachment of the catching rails 4 to the fastening elements 40 is in FIG. 7 also to recognize.
  • the head side of the T-shaped catching rail 4 is frictionally fixed on both sides by means of clamping screws 39, which surround the edges of the head side. Because the catch rails only with clamping screws are mounted on their holders, the catch rail is moved in triggering the fall protection in the direction of capture, to limit the displacement of a fixed stop is provided. As a result, most of the braking energy is introduced into the road, resulting in a gentle energy reduction for all components involved. Without such an arrangement, with a theoretical braking distance of the system of about 20 mm, most of the braking energy would go into the trolley of the charging bucket and therefore lead to damage.
  • the fasteners 40 are, as in FIG. 7 shown, in turn mounted by screws on the rails 2 of the feeder elevator.
  • FIG. 8 shows the feeder elevator according to the invention in its uppermost position, in which the feeder bucket 1 is tilted over the cooperation of the rollers 13 and the additional guide track 41. It can also be seen that the feed bucket 1 for this purpose in the region of the lower rollers 11 is pivotally suspended on the side parts 15 of the car. Since the catching devices 3 are arranged on the carriage 10, they are not affected by this pivoting movement of the charging bucket 1, so that even in this position, a securing of the charging bucket via the fall protection takes place.
  • FIG. 9 shows the feeder bucket now in a middle position in which he is suspended freely on the car.
  • the governor rope associated with the safety gear is moved and traverses the upper and lower revolving rollers. If it does not exceed a predetermined speed, the speed limiter rotates like a normal circulating roller and the feeder lift moves down without intervention of the safety gear. However, the feed bucket exceeds the predetermined downward speed, the governor rope is blocked and in turn triggers the safety gear, which brake the feed bucket at the laterally arranged catch rails.
  • the catching rails 4 are being executed, just as the rails 2 are in their upper and middle regions. Therefore, the catch rails 4 end even before the lower end of the rails and in particular before the rails open into the lower portion of the cam track 23. Otherwise, it would lead to tilting of the safety gear with the catch rails 4 by the tilting movement of the car in this lower area. Since the downward path of the feed bucket in this area is no longer too large, the safety gear is no longer absolutely necessary here.
  • FIG. 10 shows the Beschickerbübel now in its lowest position, in which the carriage 10 is arranged with its lower roller in the rail member 23 and with its upper roller still in the straight region of the guide rail 2. This leads to a tilting and partial curve movement of the side panels 15 of the car arranged catching devices 3. However, since these are already out of engagement with the catching rails 4 in this area, there is no tilting.
  • the governor rope 5 is also in this area with the triggering device of the safety gear 3 in connection and actually runs parallel to the straight portion of the guide rail. Due to the movable mounting of the lower guide roller 7, the movement of the safety gear in this area can be compensated by a movement of the governor rope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Types And Forms Of Lifts (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP12005449.9A 2011-08-12 2012-07-26 Installation de mélange de béton Withdrawn EP2556935A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011104298U DE202011104298U1 (de) 2011-08-12 2011-08-12 Betonmischanlage

Publications (2)

Publication Number Publication Date
EP2556935A2 true EP2556935A2 (fr) 2013-02-13
EP2556935A3 EP2556935A3 (fr) 2014-04-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12005449.9A Withdrawn EP2556935A3 (fr) 2011-08-12 2012-07-26 Installation de mélange de béton

Country Status (3)

Country Link
EP (1) EP2556935A3 (fr)
CN (1) CN102950653B (fr)
DE (1) DE202011104298U1 (fr)

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CN104149201B (zh) * 2014-07-29 2016-08-24 山推建友机械股份有限公司 一种爬斗式搅拌站料斗保护装置
EP3181503B1 (fr) * 2015-12-15 2023-11-01 DualLift GmbH Dispositif de reception de cable et installation d'ascenseur le comprenant
CN106276108A (zh) * 2016-09-11 2017-01-04 华中科技大学 一种料斗双轨道自倾覆式矿石输送装置
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EP2556935A3 (fr) 2014-04-30

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