Test bench for investigation of parameters of chain gate for ore chute

FIELD: mining.

SUBSTANCE: invention refers to test benches for experimental investigations in laboratories. The test bench for investigation of parameters of the chain gate for ore chute consists of the section of a vertical oriented tube secured on a frame; a circular guide of angular profile in cross section with vertical and horizontal flanges is fastened on the lower cut of the said tube; the bench also consists of a ring designed to turn in a horizontal plane relative to the guide and equipped with welded round-link chains arranged along the perimeter of the ring at uniform spacing. Lower ends of chains are secured to another ring, which can turn in a horizontal plane and can be set off in a vertical plane. Alternating between them rollers are installed on the upper ring along its perimeter; the rollers are designed to rotate around horizontal and vertical axes and also the rollers interact correspondingly with horizontal and vertical flanges of the circular guide. Further the rollers are assembled on the lower ring along the perimeter of the ring with uniform distance between them and on vertical axes; these rollers are designed to interact with interior cylinder surface of the case secured on a frame; also on the lower ring there are assembled two additional diametrically set rollers on removable horizontal axes, the said rollers interact with vertical oriented guides of double-T profile in cross section pivotally hanged to the frame with their upper ends and able to turn in the plane passing through the axes of the additional rollers sideways from the lower ring; the said guides can be fixed in turned position relative to the frame. In upper and lower rings in grooves of sections of flexible elements there are secured rims; flexible elements envelope the rims at an angle close to 360 degrees. One end of each flexible element is fastened on the rim, while another is equipped with a dynamometer and kinematically connected with a drive. The upper ring is equipped with a catch device, which fixes the upper ring relative to the circular guide. The cylinder case has a vertical slit wherein the branch of the flexible element running from the lower ring is located. A round plate is placed in the interior cavity of the tube section with a gap in a horizontal plane; alternative loads can be arranged on the plate; also this plate interacts with samples of ore located in the interior cavity of the tube section. By means of the flexible element, the length of which is equal to the height of the tube section, the plate is kinematically tied with the frame, where points of flexible element fixture to the frame are arranged along the symmetry axis of the section of the tube. A container with a slide gate in its upper part is installed under the lower ring on the frame; the samples of ore can be received and placed in the container.

EFFECT: invention facilitates laboratory assessment of strength and kinematic characteristics of chain gate for ore chute for conditions of ore lumps chute with various versions of turn ring position: upper and lower one.

2 cl, 1 dwg

 

The invention relates to stands for experimental studies in the laboratory, namely, stands for research of parameters of the chain stopper for ore passes.

The technical result of the invention is the determination in the laboratory force and kinematic characteristics of chain stopper for ore passes to the terms of issue of lumpy ore from the ore passes.

Stand for research of the parameters of the chain stopper for ore passes is characterized by the fact that it consists of the segment attached to the chassis by a vertically oriented pipe, on the lower edge of which is fixed an annular guide with angled profile in cross-section with vertical and horizontal shelves, and rings placed with the possibility of rotation in a horizontal plane relative to this guide and provided with secured at its perimeter with the same step welded kruglozerny chains, the lower ends of which are secured to another ring with the possibility of rotation in the horizontal plane and offset in the vertical plane, while the top ring on the perimeter of installed alternating between a roller with a possibility of rotation in the horizontal and vertical axes and interoperable rollers respectively with the horizontal and vertical the individual shelves of the ring rail, and the lower ring on the perimeter with the same step on the vertical axes of the rollers installed with the possibility of their interaction with the inner cylindrical surface of the casing, fixed to the frame and diametrically located two additional rink on removable horizontal axes, with the possibility of their interaction with vertically oriented guide h-profile in cross section, pivotally suspended from the frame with their upper ends with the possibility of rotation in the plane passing through the axis of the additional rollers in the side of the lower ring and fixing the rails in a rotated position relative to the frame, the upper and lower rings pinned rims with accommodation in their the grooves of the segments of the flexible elements and covering rims flexible elements at an angle close to 360 degrees, with one end of each flexible element is mounted on the rim, and the second is equipped with a dynamometer and kinematically connected with the actuator, the upper ring is provided with a locking device to lock the upper ring relative to the ring rail, a cylindrical casing made with a vertical slot cut with the possibility of placing it down with the bottom ring of the branches of the flexible element, in the inner cavity of the pipe segment is placed with a gap in horizontal the th plane round plate with the possibility of hosting a removable cargo and interact with in the inner cavity of the pipe segment of a sample of ore, when this plate via a flexible element, the length of which is equal to the height of the pipe segment, kinematically connected with the frame when the point of attachment of the flexible element to the frame along the axis of symmetry of the pipe segment, below the bottom ring is installed on the frame container is placed in the upper part of the slide gate capable of receiving and placing in a container of a sample of ore. The retaining device of the upper ring can be made in the form prescribed by the annular guide screws with the possibility of its interaction with the hole in the upper ring.

The stand is presented in figure 1 is a side view, figure 2 a section a-a of figure 1, figure 3 - cross-section B-B of figure 1.

Stand for research of the parameters of the chain stopper for ore passes consists of a segment mounted on frame 1 of a vertically oriented pipe 2. On the lower edge of the tube 2 is fixed guide ring 3 with angled cross-section profile with 4 vertical and 5 horizontal shelves and placed the ring 6 with the possibility of rotation in a horizontal plane relative to the guide 3. The ring 6 is supplied attached at its perimeter with the same step welded kruglozerny circuits 7. The lower ends kruglozernyh circuit 7 is fixed on the other, the bottom, the ring 8 with the possibility of rotation in the horizontal plane and offset in the vertical plosko is I.

On the upper ring 6 at its perimeter set alternating between the rollers 9 and 10 with the possibility of rotation on a horizontal 11 and 12 vertical axes and with the possibility of interaction between rollers 9 and 10, respectively, with 5 horizontal and vertical 4 shelves guide ring 3. On the lower ring 8 at its perimeter with the same step on the vertical axis 13 mounted rollers 14 with the possibility of their interaction with the inner cylindrical surface of the casing 15, is attached to the chassis 1. On the lower ring 8 is also mounted diametrically located two additional rink 16 and 17 on the removable horizontal axes 18 and 19 interoperable additional rollers 16 and 17 with vertically oriented guide rails 20 and 21 of the double-tee cross-section profile, which hinge 22 and 23 is suspended from the frame 1 with their upper ends with the possibility of rotation in the plane passing through the axis 18 and 19 additional rollers 16 and 17, in the side of the lower ring 8 and the fixing of the rails 20 and 21 in a rotated position relative to the frame 1. On the top 6 and bottom 8 rings pinned rims 24 and 25 with the possibility of placing in their gutters segments of the flexible elements 26 and 27 and with the possibility of coverage rims 24 and 25 of the flexible elements 26 and 27 at an angle close to 360 degrees. With one end 28 and 29 of each flexible element 26 is 27 fixed to the rim 24 and 25, and the second is equipped with a dynamometer 30 and 31 and kinematically connected with a drive (not shown). The drive can be both mechanical and manual. The upper ring is provided with a locking device 32 to lock the upper ring 6 relative to the guide ring 3. The cylindrical casing 15 is made with a vertical slot cut-out 33 with the possibility of placing it down with the lower ring 8 branches flexible element 27. In the inner cavity of the pipe segment 2 is placed with a gap in the horizontal plane round plate 34 with the possibility of hosting a removable cargo 35 and communicate with an internal cavity of the pipe segment 2 ore samples 36, and the plate 34 by means of the flexible element 37, the length of which is equal to the height of the pipe segment 2, kinematically connected with the frame 1 when the attachment point 38 of the flexible element 37 to the frame 1 along the symmetry axis of the pipe segment 2. Under the lower ring 8 on the frame 1 has a container 39 is placed in the upper part of the slide gate 40 is capable of receiving and placing in a container 39 ore samples 36.

The retaining device 32 of the upper ring 6 may be made in the form mounted on the ring rail 3 screw 41 with the possibility of its interaction with the hole 42 in the upper ring 6.

Design and selection of stand characteristics are at the core the ve similarity theory taking into account the parameters of the designed or operated the ore passes - the diameter of the outlet conditions of the mining facility, as well as particle size distribution and physical-mechanical properties of ore in ore passes. Work on the stand as follows. Research carried out for the two embodiments of the drive chain bolt at upper and lower locations of the drive ring.

When you research options chain bolt with the top placement of the rotary ring 6 with the rim 25 of the lower ring 8 remove the flexible element 27 with a fixed dynamometer 31. The guides 20 and 21 is fixed in a vertical position. The rotation of the screw 41 of the locking 32 rasstropovyvajut upper ring 6, thus moving the screw from the hole 42 in the upper ring 6. Slide gate 40 overlap the container 39. In a section of pipe 2 and in the inner space between kruglozerny circuits 7 place the ore sample 36, on top of which set the plate 34, and it is removable cargo 35, imitating (at appropriate scale) the ore pressure on the shutter of the actual ore passes. In the initial position, the pressure of a sample of ore 36 perceived slide gate 40. Next, gradually opening the gate valve 40 with the provision of unloading ore sample 36 in the container 39, by a mechanical actuator or manually by means of the flexible element 26 to rotate the upper ring is 6, consistently capturing both readings of the dynamometer 30, the angle of rotation of the upper ring 6, the lifting height of the lower ring 8. The operation was performed, gradually spinning kruglozerny circuit 7, to completely shut off the flow of ore 36 of the outlet pipe section 2.

When you research options chain bolt with the lower placement of the rotary ring 8 by means of a screw 41 of the locking 32 of the upper ring 6 is fixed relative to the annular guide 3 using the locking device 32. The guides 20 and 21 rotate about hinges 22 and 23 in the side of the lower ring 8 and is fixed in this position. Next, perform operations similar to those described above. Then, gradually opening the gate valve 40 with the provision of unloading ore sample 36 in the container 39, by a mechanical actuator or manually by using the flexible element 27 rotates the lower ring 8, sequentially capturing both readings of the dynamometer 31, the angle of rotation of the lower ring 8, the lifting height of the lower ring. The operation was performed, gradually spinning kruglozerny circuit 7, to completely shut off the flow of ore 36 of the outlet pipe section 2.

Features of the invention allow in the laboratory to determine the force and kinematic character who sticks of chain stopper for ore passes to the terms of issue of lumpy ore from the ore passes at different hosting options, slewing ring, associated with the drive - upper and lower.

1. Stand for research of the parameters of the chain stopper for ore passes is characterized by the fact that it consists of the segment attached to the chassis by a vertically oriented pipe, on the lower edge of which is fixed an annular guide with angled profile in cross-section with vertical and horizontal shelves, and rings placed with the possibility of rotation in a horizontal plane relative to this guide and provided with secured at its perimeter with the same step welded kruglozerny chains, the lower ends of which are secured to another ring with the possibility of rotation in the horizontal plane and offset in the vertical plane, while the top ring on the perimeter of installed alternating between a roller with a possibility of rotation in the horizontal and vertical axes and interoperable rollers respectively with the horizontal and vertical shelves guide ring and the bottom ring on the perimeter with the same step on the vertical axes of the rollers installed with the possibility of their interaction with the inner cylindrical surface of the casing, fixed to the frame and diametrically located two additional rink on removable horizontal axes, with the possibility of their interaction is with vertically oriented guide h-profile in cross-section, pivotally suspended from the frame with their upper ends with the possibility of rotation in the plane passing through the axis of the additional rollers in the side of the lower ring and fixing the rails in a rotated position relative to the frame, the upper and lower rings pinned rims with the possibility of placing in their gutters segments of flexible elements and covering rims flexible elements at an angle close to 360, with one end of each flexible element is mounted on the rim, and the second is equipped with a dynamometer and kinematically connected with the actuator, the upper ring is provided with a locking device to lock the upper ring relative to the ring rail, the cylindrical casing is made with a vertical slot cut with the possibility of placing it down with the bottom ring of the branches of the flexible element, in the inner cavity of the pipe segment is placed with a gap in the horizontal plane round plate with the possibility of hosting a removable cargo and communicate with an internal cavity of the pipe segment of a sample of ore, and the plate with the flexible element, the length of which is equal to the height of the pipe segment, kinematically connected with the frame when the point of attachment of the flexible element to the frame along the axis of symmetry of the pipe segment, below the bottom ring is installed on the frame container with razmeschenno is at the top of the gate the valve is capable of receiving and placing in a container of a sample of ore.

2. The stand according to claim 1, characterized in that the retaining device of the upper ring is made in the form prescribed by the annular guide screws with the possibility of its interaction with the hole in the upper ring.



 

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