LT3643B - A sleeve belt conveyer - Google Patents

Abstract

The proposed strip sleeve device interacts with large amounts of supporting, guiding or driving rollers, fastened in respective frames or adjusting devices. In order to improve the movement of the strip, it can be oval-shaped in respect of the non-moving and chained supporting roller, transporting strip respectively adjusting in radial direction. This tool ensures secure movement of the strip along the beam, and prevents the strip from rotating or opening along the beam.

Description

The invention relates to a sleeve belt conveyor, wherein the conveyor belt, in partially flat straightened or grooved shape and partially in the form of a sleeve obtained by continuously rounding the belt in transverse direction and overlapping the longitudinal edges of the belt, moves with support quantities of strokes, frames.

VFR patent no. No. 3145899 discloses a sleeve support for a sleeve belt conveyor having rigidly fixed pivoting rollers disposed in the center of the support frame at respective intervals along the web, and each row of the support rolls being accurately supported by its circumference.

Known from GDR patent no. The 202124 analogue device has a support structure of geometric shape of an elongated ellipsoid having polygonal, preferably hexagonal, openings on its upper and lower sides, through which the upper and lower branches respectively pass. There are six support rollers placed on the six sides that are flush with the circumference of the sleeve strap.

In addition, a sleeve-belt conveyor is known from the VFR patent, in which the sleeve-belt is based on a circle in the form of garland-shaped rollers. The roller garlands are hinged on the vertical sides of the support frame and the rollers rotating about their axis are hinged to each other by means of spacers.

U.S. Pat. No. 4526272 describes a sleeve belt conveyor suspension for underground work. The sleeve strap is located in a two-way moving track above the suspension and interacts with the unloading end of the mining machine. The suspension is made so that it accepts both idle and idle at the same time. and the edges of the strap do not overlap in any way. The suspension feeds in such a way that a constant rotation of the circle is achieved. Because of the varying degrees of loading on both the idle and the load branch, different traction forces are applied, so the undirected bar can turn and empty in the stroke.

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As with normal belt conveyors, as well as sleeve-shaped conveyors, roller garlands can be used in combination with fixed roller supports. Some production options are listed above. There is no risk of lateral displacement when using the roll bar, but on the one hand, it is necessary to prevent the sleeve bar from twisting and placing the rolls so that the overlap section is always covered by one of the rolls. In addition, it is necessary to prevent the edge of the tape from running on the next end of the roll. Since the behavior of the sleeve strap in the stretch, especially under constantly changing loading conditions and also when exposed to external factors (rain, snow, etc.), cannot be predicted, the state of the art solutions cannot meet the above requirements. It is due to the specified external factors, such as rain, snow, etc., that the tape turns uncontrollably, especially in the first turn.

The main object of the invention is to improve the device according to the first part of the definition, which describes the type, so that the device satisfies all conditions of the sleeve strap in the work. To reduce costs, the suspension should be uniform throughout the section and provide a single design for the support rollers at different locations. Separately, the complicated sections of the sleeve conveyor must be controlled so that the belt will rotate in a circular direction only by preliminary calculations.

According to the invention, this object is solved by the fact that the conveyor belt has an oval cross-section in the sections of the transport section where it moves in closed sleeve form, or at least in the sections thereof, which is created by the respective arrangement of the support and guide rollers. The present invention provides an oval conveyor belt shape, particularly in difficult sections, which provides improved belt movement and prevents unwanted rotation in the segment.

Contrary to the level of technique used to explain the basically round sleeve shape (the problem has already been addressed), the use of a partial oval shape allows for an unambiguous task of lane control. The embodiment is adapted both to stationary support rollers and to roller supports with roller grooves. According to another embodiment of the invention, the ratio of the major axis of the oval cross-section of the bar is preferably 15-25%, longer than the minor axis, depending on the application and construction. It is further proposed that the support and deflection rollers, assembled as roller garlands, interact directly with the respective frame, with each roller garment supporting the sleeve strap. Alternatively, it is suggested that the supporting and deflecting rollers supporting the sleeve strap adjustable supports be

10-50%,

Each of the respective top and bottom is too rigidly connected to the frame or its details. In another embodiment of the invention, the stationary supports or their grooves are also provided with a guide roller which is disassociated with the frame and has the ability to rotate the wheel around the longitudinal axis. The aforesaid adjusting devices are provided with corresponding frames, and in the last case, the adjusting device is rotated in a circular direction relative to the frame, so that during inspection and adjustment of the support rollers, a steady covering of the strip over the stretch with one support roll. This feature ensures, on the one hand, that the bar in the section cannot open automatically and, on the other hand, that it is possible to control the tightening in a circular direction.

If the device requires a frame with a rotating setting device, the following constructional possibilities of this setting device can be utilized:

the adjusting device may be manufactured as a closed ring;

the adjusting device may be manufactured as a circular washer;

The adjusting device may be made of a sickle-type element which may, if necessary, be joined by other components.

All of the embodiments shown have the ability to rotate in a circular direction relative to the frame on which they are mounted, and each adjusting device is secured to the frame by means of clamping members.

The adjusting device can be manufactured as a mass product, and fixed support rollers or roller guides can be mounted directly on it. Because of the dismantling of the joint between the frame and the adjusting device, it is possible to adjust the roughness of the pre-alignment after the test sleeve strap has been released, by simply reducing the clamping joint on the work site. For this purpose, the support rollers do not need to be repositioned in a circular direction. As stated above, the adjusting devices may have: both a closed form and an open cross-section connected by other details. This tool also needs to be adapted to an appropriately manufactured device and, in the case of an interlocking detector, in the event of damage to the tape, it can be removed from the appropriate detector and repaired. In addition, in this case it is possible to replace the defective rollers with new ones. For structural and spatial reasons, the stationary support and guide rollers are arranged one after the other on either side of the respective setting device.

In another embodiment of the invention, it is proposed that the end axle points of the support rollers and their fasteners be secured so as to have radial displacement capability. This feature serves to move the stationary support rollers radially in the direction of the belt, and also to influence the ovality of the belt through various displacements. In this case, a whole range of options is provided. It is desirable to place the stationary support rollers and their fasteners in radially spaced longitudinal notches along the respective setting device. There is an alternative option to make several holes in the radial direction. Automatic feeding using propeller screws, etc. is also possible.

If instead of stationary support rollers, roller garlands which are mounted either directly on the frame or inside the appropriate setting device are used, it is proposed that the points of attachment of the roller garlands be in a straight line extension of the main axis of the respective transverse section. In addition, it is suggested that the distance between the points of attachment of the roller garlands should be 60-80% of the length of the garland, preferably 65-75%. Alternatively, it is suggested that the points of attachment of the roller grooves have a displacement capability parallel or longitudinal to the main axis of the oval cross section of the conveyor belt. This measure affects the cross-sectional ovality of the conveyor belt. By stretching and extending the respective upper and / or lower roller groove, the ovality can be adjusted to the desired shape. It is also possible to install elastic spring elements between the rollers and their attachment points. Due to the applied spring tension, the roller garlands can flex under the possible overload of the belt without causing any damage to it and the belt. In addition, the end points of the roller garlands can be fixed so that we have the ability to move vertically. And this tool allows you to change the cross-section of the bar, especially in non-linear sections.

In order to ensure free oscillation of the roller garlands in the longitudinal and transverse directions of the sleeve strap, cardan joints in the rear sections are provided. The above-mentioned means of adjusting the length of the device between the frame or adjusting device and the PTO joint allows adjusting the point of suspension of the roller garlands and transverse to the sleeve strap, allowing the oval to be changed to the classic elliptical shape when needed. it is proposed to change the length of the device by means of a screw whose head forms the internal support for the universal joint. Adjusting the screw can produce any oval or elliptical.

By utilizing the features of the invention, it is ensured that the sleeve belt conveyor is designed to meet any requirements for adjustment and displacement in the longitudinal, transverse and circular directions. The suspension is different in its simplicity and speed of adjustment with imprecise presetting.

The invention is illustrated in the drawings and described below.

The drawings show:

LT 3S43 B

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FIG. 1. - Portal-type frame with roller garlands directly attached to the oval strip.

FIG. 2 - Portal frame with bar-fixed support rollers.

FIG. 3 and 4 - Portal frame with sickle-shaped adjusting device for support roller garlands in various views.

Fig. 5 is a schematic view of an alternative sleeve jet conveyor suspension arrangement.

FIG. 6 and 7 are enlarged views of the PTO joint section.

FIG. Figures 8 and 9 are various views of a frame with a ring setting device.

FIG. 10 - belt conveyor at the work site using the setting device according to fig. 8 and 9.

FIG. 11 - Device for pushing sleeve belt conveyors with closed wheel type setting device.

FIG. 12 - Device for pushing sleeve conveyors with a partially cut-out adjusting device.

FIG. 1 is a schematic representation of a sleeve-belt conveyor device 1 having a large amount of frames 2 in the longitudinal direction of the work site, which are designed to have a portal view. Inside the portal frame 2 are provided two roller grooves 3, 4 which deflect the oval conveyor belt 5 such that its overlapping section 6 is permanently covered by a support roller 7. The ovality of the conveyor belt 5 is defined by its main A and minor B axes. The rollers 3 and 4 of the roll girLT 3643 B end at the attachment points 8, 9, 10, 11, in addition between the ends of the rollers 12, 13, 14, 15 and the attachment points 8, 9, 10, 11 Elastic spring elements 16, 17, 18, 19. The mounting points 8, 9, 10, 11 are carried out with the possibility of transfer in the vertical direction. The ovality of the conveyor belt 5 can be varied either by moving the anchor points 8, 9, 10, 11 vertically, or by stretching and aligning the roller grooves 3, 4 along or parallel to the major axis A. Due to the oval shape of the belt, it is achieved that, on the one hand, the overlapping section 6 is permanently closed by one of the support rollers 7, and on the other hand, the web moves along the section with a constant cross section. will spill out onto the pitch.

FIG. 2 shows another sleeve belt conveyor 20. Instead of the roller garlands according to FIG. 1 utilizes fixed support rollers 21, 22, 23, 24, 25, 26 secured by respective fasteners 27,28, 29, 30, 31, 32. For adjustment, the support rollers may be moved inside the fasteners radially relative to the transport belt 33. Any or all of the oval of the conveyor belt 33 can be obtained by repositioning one or all of the support rollers 21, 22, 23, 24, 25, 26. Overlapping stretch 34, analogous to FIG. 1, also permanently closed by a support roll 22.

FIG. Figures 3 and 4 also show a sleeve-belt conveyor 35. Shown is a portal-type frame 36, vertical pillars 37, 38 connected to each other by a horizontal shoulder 39. Vertical pillars 37, 38 secured on a two-way, lower part 40, 41 by means of the clamping plates 42, in addition, the frame 36 is displaced in the longitudinal direction of the lower structure 40, 41 (arrow direction). At the top and bottom of the horizontal shoulder are provided the so-called sickle-type adjusting devices 43, 44. Through the fasteners 45, the adjusting devices 43, 44 slide through the horizontal shoulder 39 by means of clamping plates not shown. As stated above, the adjusting devices 43, 44 are made in the form of a sickle, which allows removal of the conveyor belt 46 from both the top and the bottom. In order to cover the overlapping section 47 of the conveyor belt 46 with the support roller 48, 49 anywhere on the work site, the sickle-like element 43, 44 may rotate relative to the frame 36 and the horizontal shoulder 39 radially relative to the longitudinal axis. The conveyor belt 46 is guided by two rollers 50, 51, 52, 53. At the ends of the roller grooves 50, 51, 52, 53 there are provided cardan pivots 54, 55, 56, 57, which are described in more detail in Figs. 6 and 7.

By changing the spacing of the universal joints 54, 55, 56, 57 (arrow direction), the conveyor belt 46 can be formed into an oval shape.

FIG. Figure 5 shows an alternative schematic view of the performance of a sleeve web conveyor suspension. Transport belt 58 as already shown in FIG. 3 and 4, mounted at the top and bottom of the horizontal shoulder 59 such that sections of tube 60, 61 are formed in which roller grooves 62, 63, 64, 65 are suspended by means of hinges. 3 and 4, a universal joint arm 66, 67, 68, 69 is provided. move. The tubing 60, 61 is rotated inside the housings 72, 73, but in this case, fasteners not shown are provided.

Figures 6 and 7 show an enlarged view of the area of the universal joint 67 (Fig. 5). Each last roller bearing roller bearing roller 74 is pivotally coupled to a PTO joint 77 via a chain link 76. Between the hinge 77 and the wall 78 of the tube 60 is a screw 79, the length of which can be varied inside the tube 60 secured to the outside and inside of the tube 60 by nuts 80, 81. The screw head 82 plays the role of the inner support 83 of the hinge 77. By changing the length of the propeller 79, it is possible to obtain the corresponding oval of the conveyor belt (not shown) for curved and straight sections. The chain links 76 are mounted on the axle by means of screws 84, 85.

FIG. Figures 8 and 9 show various views of a sleeve belt conveyor 86. A frame made of a plurality of angles 87, 88, 89, 90 is shown. The adjusting device 91, which has an image of an annular washer, has holes 92 in the rear which are evenly circular. 8 provided longitudinal grooves 93 in case it is desirable to have the possibility of adjusting the support rollers 94 and the V-shells comprising them. The washer 91 is connected to the angles 87, 88, 89, 90 and can be disengaged by the clamping plates 96. By loosening the fasteners 97, the rigidly locked washers 91 with the supporting rollers 94 can be moved in a circular direction and at a limited distance to the side as well as up and down. This arrangement ensures that the overlapping section 99 of the conveyor belt is permanently closed by a support roller 94.

FIG. Fig. 10 shows a strip arrangement in a stroke using a tuning device according to Figs. 8 and 9. Shown are longitudinal beams 100, 101 of a predetermined length, e.g., 10 m, between which are frames 87 (up to 90), upper and lower branches of the conveyor belt 98, and support rollers 94 mounted on a washer (not shown). which are successively attached to both ends of the washer 102, 103, respectively, of the frame 87 (up to 90).

FIG. 11 and 12 show a device 104, 105 for deflecting a sleeve conveyor belt 106 having the following details:

FIG. 11 shows a device consisting of a closed ring 107 which is welded 108 or the like. is conveyed rigidly to the closed annular member 109. The conveyor belt 106 is passed through a hole 110 in the member 109 and is guided back through the lower leg portion via the frame member 111 (not shown). The part 109 has circularly spaced holes 112 which serve to secure the support rollers 114 retained in the sheaths 113. The apertures 112 are arranged in a circumference 109 on the part 109 such that the support rollers 114 are flush with the circumference 115 of the conveyor belt 106 with prestressing. The two ribbing edges 116, 117 are disposed in an overlapping manner and in each adjusting member 104 abut against the circumferential surface 114 of the supporting roller 114.

FIG. Fig. 12 is essentially analogous to Fig. 11. The difference is that the setting device 105 is partially distributed. At the same time, a cylinder 120 is formed with a groove which is joined to the segment 122 by the weld 121. The groove is closed by a cap 123 having a radius corresponding to the radius 120 of the cylinder ELT 3643 B and a further segment 124. Welded on the cap 125 126, 127 only disassemble the cylinder 120 by means of marked bolts.

Support rollers 128, shown for illustration only on one side, analogous to FIG. 11, are retained in casings 129 which are secured to the segments 122, 125 by means of fasteners. In order to give the strip an appropriate shape (e.g., oval), longitudinal recesses 130 are provided. collapsible with frame 132.

Claims (19)

DEFINITION OF INVENTION 1. A sleeve conveyor having a conveyor belt which is partially flat 5, in straightened or grooved shape, and partially sleeve-shaped, obtained by constant rounding of the bar in transverse direction and overlapping the longitudinal edges of the bar, moves with support, guide, and driving rollers that interact with large volumes of struts along , 46, 98, 106) have an oval cross-section in the sections of the transport section in which it moves in the form of a closed sleeve, or at least in the sections thereof 15 is formed by the respective arrangement of the supporting and deflecting rollers (7, 48, 94, 114). 2. A device according to claim 1, characterized in that it has a major oval cross-section Axis 20 (A) 10-50% longer than minor axis (B). 3. Device according to claim 1 or 2, characterized in that the major axis (A) of the oval transverse strip is 15-25% longer than the minor axis (B). 4. A device according to claims 1-3, characterized in that the supported support and guide rollers (7) in the form of connected roller grooves (3, 4) interact directly with the frames (2), and in addition each The garment (3, 4) of the 30 support rollers supports the sleeve band (5) from above and from below. 5. A device according to claims 1-3, characterized in that the support and guide rollers 35 (22) supporting the sleeve strap (33) from above and below through adjustable supports (27, 28, 29, 30, 31, 32), rigidly connected to the frame (20) or parts thereof. 6. A device according to claims 1-3, characterized in that the stationary support and guide rollers (48, 94, 114, 128) or their grooves are arranged in a setting device (43, 60, 91, 104, 105) which is detachably connected to the frame. (39, 59, 87, 88, 89, 90, 111, 132) and having the ability to spin a wheel around a longitudinal axis. 7. A device according to claim 6, characterized in that the setting device (104) is manufactured as a closed ring (107). 8. A device according to claim 6, characterized in that the setting device (86) is made as a ring washer (91). A device according to claim 6, characterized in that the setting device (35,105) is made of a sickle-type element (43,120) which is closed by means of other parts (125). Device according to claims 6-9, characterized in that the setting device (35, 86, 104, 105) is fixed to the frame (39, 87, 88, 89, 90, 111, 132) by means of clamping plates (96, 119, 131). ) and adjusting support and guide rollers (48, 94, 114, 128) may rotate in a circular direction. Device according to claims 6 to 10, characterized in that the stationary support and guide rollers (94, 114, 128) are arranged one after the other on either side of the respective setting device (86, 104, 105). Device according to claims 6 to 11, characterized in that the end axle points of the support rollers and their fastening elements (95, 113, 129) are fixed so that they can be displaced radially. Device according to claims 6 to 12, characterized in that the stationary support rollers (94, 114, 128) and their fastening elements (95, 113, 129) are inserted in radially arranged longitudinal notches (93, 130) and connected to a respective adjusting device. a device (86, 104, 105). 14. Apparatus according to claims 1-10, characterized in that the roller mounting points (8, 9, 10, 11) are in a linear extension of the main axis (A) of the oval cross-section of the respective conveyor belt. 15. Apparatus according to claim 14, characterized in that the distance between the end points (8, 9, 10, 11) of the roller garment attachment ends is 60-80% of the length of the garland. 16. Apparatus according to claims 14 and 15, characterized in that the distance between the end points (8, 9, 10, 11) of the roller garment attachment ends is 65-75% of the length of the garland. 17. Apparatus according to claims 14-16, characterized in that the roller mounting points (8, 9, 10, 11) can move parallel or along the main axis (A) of the oval cross-section of the conveyor belt. 18. A device according to claims 14-17, characterized in that elastic spring elements (16, 17, 18, 18) are provided between the roller ends (12, 13, 14, 15) and their attachment points (8, 9, 10, 11). 19). 19. A device according to claims 14-18, characterized in that the anchoring points (8, 9, 10, 11) of the roller grooves (12, 13, 14, 15) can be arranged vertically.