• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. TENSIONING DEVICE FOR CONVEYOR USTANOVZH and production, in particular for plow comprising tensioning gidrotsiliidry, valve switchgear to the control valves and pivotably supported on the support frame with gidrostoykami, through which the hydraulic cylinders are connected to the conveyor advancing and mining installation, and hydraulic lines, characterized in that, in order to increase the automation of the reloading of tensioning hydraulic cylinders during the displacement of the support sections, reliability of operation and simplification of the design, valve The distributing devices of the tension hydraulic cylinders are equipped with controllable switching valves connected by hydraulic lines to the hydraulic legs of the support sections or to the slide cylinders. 2. A device according to claim t, characterized in that controllable switching valves are installed in the hydraulic line connecting the cavity of the tensioning hydraulic cylinder with the drain and on the outlet side connected to the outlet of the control valve. O) 3. Device on PP. 1 and 2, characterized in that it is provided with a metering device for metering loading of the tension 5 hydraulic cylinder. 4. The device according to claim 3, characterized in that a common dosing device O) is associated with each group of tensioning hydraulic cylinders. 5. The device according to claims. 1-4, from 4; characterized in that the pressure reducer has been predetermined to be loaded with a variable working pressure of the tensioning hydraulic cylinders.
    公开号:SU1106450A3
    申请号:SU792761755
    申请日:1979-05-07
    公开日:1984-07-30
    发明作者:Вайрих Вальтер；Деттмерс Михель；Рассманн Кристоф；Хойер Вилли；Бойер Герберт；Линке Хорст
    申请人:Геверкшафт Эйзенхютте Вестфалия (Фирма)；
    IPC主号:
    专利说明:

    I The invention relates to the mining industry, namely, to a means of excavating a mineral for underground mining enterprises. Tensioning devices for mining machines are known, in which hydraulic walking fasteners of the downhole support are used as supports for hydraulic tensioning hydraulic cylinders l. The disadvantages of the known tensioning devices are the lack of automation of unloading the tensioning hydraulic cylinders when the sections are moved and the high overall operating costs. The closest to the proposed technical essence and the achieved economic effect is a tensioning device for the installation conveyor, in which a tensioning hydraulic cylinder is connected to the support section of the support by means of a telescopic tension beam and is activated by a valve with a control valve and hydrolines 2J. The disadvantages of the known tension device are unreliable work, the design complexity and low automatic unloading of tension hydraulic cylinders when the support section is moved. The purpose of the invention is to automate the unloading of tensioning hydraulic cylinders when moving the support sections. Reliability of operation and simplification of the structure. This goal is achieved due to the fact that, in a tensioning device, for a conveyor and mining installation, in particular, for a plow installation, including tensioning hydraulic cylinders, valve distributors with control valves and hingedly supporting sections with hydroracks, which through the hydraulic cylinders are connected to a conveyor and mining installation, and hydraulic lines, valve distributors of tension hydraulic cylinders are equipped with controllable switching valves connected with hydraulic rolls ostoykami support frames or re engines cylinders. At the same time, controllable switching valves are installed in the hydrolines of the connecting cavity of the tension hydraulic cylinder 02 with a drain and are connected to the outlet of the control valve on the outlet side. In addition, the device is equipped with a metering device for metering loading of the tensioning hydraulic cylinder. A common metering device is associated with each group of tensioning hydraulic cylinders. A pressure reducer is provided for loading the variable working pressure of the tensioning hydraulic cylinders. Fig. 1 shows a conveyor and a mining installation equipped with a tensioning device, top view; in fig. 2 and 3 — a part of the tensioning device with a modified arrangement of the tensioning hydraulic cylinders, top view; in fig. A - single tension hydraulic cylinder with a valve distribution device, top view; in fig. 5 - several tensioning hydraulic cylinders with a valve distributor, a metering device and a pressure reducer, top view. Before the coal face 1, there is a conveyor and a mining installation, which in this case consists of a plow installation, having a bottomhole conveyor 2 as a chain scraper conveyor, becoming linear sections of which are composed of separate pivotally connected and low-mobility sections 3. Plow drive stations made in the form of the main drive station 4 and the auxiliary drive section 5 in the ventilation 6 and transport 7 lines of the mining section 8. The connection of the conveyor 2 with the station frame 9, on which The second are the drive units for the conveyor and the plow, produced at both ends of the conveyor by means of the transition section 10. 1 On the back section of the conveyor, the plow 11 is fastened to guide the plow 12, which is driven by an endless chain (in Fig. shown), so that when moving in both directions, it separates coal or other fossil in the downhole 1 and loads it onto the conveyor 2, with which the coal is delivered in the direction of page S. 8, line 7, the coal is carried through reinforced and driven in motion The driving star 13 is transported into the station 9 frame and transported further by the drift conveyor 14. The downhole and mining section is fixed using hydraulic downhole blocks, especially shield shield fixing blocks 1 which are located next to each other on the offset side of the conveyor 2 and connected via hydraulic cylinder 16 with conveyor 2. With the help of hydraulic cylinders for movement 16, conveyor 2 can periodically move in the direction of the arrow U towards the face, whereas when pressure is applied from the back The torsion of the hydraulic cylinders of the movement 16 are tightened by the corresponding fastening elements 15. The plowing unit is tensioned by means of a tensioning device, which is located in the effective clearing face at its both ends, using the fastening elements 15 located here as supports for the tensioning hydraulic cylinders. Tension in the section of the ventilation drift 6 is carried out by tension hydraulic cylinders 17, which are rigidly connected to the side on the conveyor 2 by means of hinges by means of hinges and connecting hinges 19 of the bases of 20 fasteners 15. The hinges have perpendicular directions to axles, and tension hydraulic cylinders 17 can rotate in a plane parallel to the base plane 20. The tension hydraulic cylinders 17, shown above, are located under their longitudinal axes three angles to the longitudinal axis of the structural unit. In addition, each tensioning hydraulic cylinder 17 rests on a separate fastening element 15, and on the other hand, on a separate section of the stand 3 of the conveyor 2. There are five tensioning hydraulic cylinders 17, moreover, at the upper end of the plow installation, the tensioning hydraulic cylinder 21, which is the closest to gate 6, has the largest stroke of the piston compared to other tension hydraulic cylinders 17. The tension hydraulic cylinder 21 is connected to the transition section 10. The tension of the plow installation in the lower section, i.e. in the vicinity of the drift 7, is produced similarly by a tension hydraulic cylinder or hydraulic cylinders 22, each of which is connected to a section 3 of the conveyor 2 by means of a connecting hinge 18, as well as through a connecting hinge 19 with a fastener base 20, and rigid joints are formed at both ends. The length of the tensioning hydraulic cylinder 23 of this group of tensioning cylinders, consisting, for example, of three cylinders, is longer than all other tensioning hydraulic cylinders. The hydraulic cylinder 23 is connected to the transition section 10. The tension hydraulic cylinder 22 is located at an acute angle to the longitudinal axis of the plow installation in the opposite direction to the hydraulic cylinder 17 in the upper tensioning device. Thus, the tensioning cylinders 17 provide tensioning of the conveyor 2 in the direction of the drift 6 (i.e. in the direction opposite to the dropping point), and the tensioning hydraulic cylinders 22 tension the conveyor in the direction of the arrow S. A large component of the force acts in the longitudinal direction of the conveyor and smaller in the transverse direction to the conveyor (arrow U) or in the direction of movement of the plow rig to the face. In addition, the forces arising from the addition of the forces of the conveyor chains and / or the plow installation, acting in the direction of arrow S, as well as arising from the oblique release of force (arrow S), tend to turn the tensioning hydraulic cylinders 17 around the connecting hinges 19 on the fasteners 15 whereby a change in the direction of the forces in the direction of the plow displacement towards the face is achieved. The hydraulic cylinders 17 provide tension in the direction of the arrow S, and the tension hydraulic cylinders 22 provide the opposite direction. With a strong release, the tension in the opposite direction should be stronger & 1and than in the opposite direction. Tensioning cylinders 17 and 22 are fastened to connecting elements 24, which are placed with a certain displacement on the sections of the conveyor bed. The connecting members 24 may also be placed on the connecting portions hinging two adjacent stavle sections. At the ends of the tensioning device of the conveyor and the mining installation, stiffening ribs are made in the form of beams or stiffening elements in the form of curved sheets. Tension hydrocyclicdles may be attached to these stiffeners. The longer stretch tension cylinders 21 and 23 allow, while moving the entire plow rig, known compensation, as well as to a certain extent, control of the output of the drive stanzas 4 and 5 to the corresponding row 7 or 6. It is recommended to produce in transition sections 10 to several connecting elements along their lengths for fastening the tensioning hydraulic cylinders 21 and 23 so that the best connection of the tensioning cylinders with transition sections is ensured. To adjust the output of the drive stations, you can mount Vat installation in transition sections of various lengths or various nye calibrated mounted between the frame section and the installation puts conveyor. During assembly or disassembly of the calibrated sections, the conveyor is held in its position by short-sized tension cylinders. FIG. Figures 2 and 3 show tensioning devices in which the tension cylinders 17 and 22 are alternately set obliquely in one or the other direction. FIG. 3 shows tension cylinders M and 22, inclined in different directions and converging towards the plow installation, on each walking fastener 15, which are connected to conveyor 2 or fasteners by means of hinges 18 and 19. In this case, 25 and 26 are divided into two parts, based on the 25 kr of the tension hydraulic cylinder 22, and on the base 26 the tension hydraulic cylinder 17 is fastened In opposite directions, the tension hydraulic cylinders 17 and 22 are arranged in such a way that one one of them pushes and the other one doesn’t have a conveyor so that the component forces acting in the opposite direction Y are mutually balanced, and therefore only the components acting along the conveyor appear. FIG. Figure 3 shows the construction of tension hydraulic cylinders 17 and 22, in which opposing hydraulic cylinders M VI 22, which are located in mutually opposite directions, are supported on adjacent fastening elements 14 by means of hinges. Each fastening element in this case has one hydraulic cylinder 23 for movement, which with the help of hinges is connected to the bases and the conveyor. FIG. Figure 4 shows the hydraulic device for controlling the tensioning hydraulic cylinder 17 or 23, which is rigidly fixed between the connecting hinges 18 and 19 of the corresponding section of the conveyor base 3 and the bases 20 of the corresponding fastening element. In addition, in FIG. Figure 4 shows the pinch cylinder 16 of this fastener, which with its piston rod 27 rests on the fastener and whose cylinder rests on guide rods 28 connected at its front ends via a hinge 29 to the conveyor. Tensioning hydraulic cylinders 17 and 22 are equipped with switchgears 30. This fixture consists of a control valve 31, which is connected to the inlet side with recirculation hydraulic line 32 and pressure hydraulic line 33 running along the bottom, and valve control devices 30 are also equipped with a pressure limiting valve 34. a three-way two-way valve 35, which is a switching valve, which is driven by means of a servo cylinder 36, whose working chamber is connected via a control line 37 to an injection chamber moving the second 38 hydraulic cylinder 16. The pump chamber 38 when moving the fastening element 16 is filled with hydraulic fluid under pressure. The switching valve of the 31 tensioning hydraulic cylinder from the output side is connected via line 39 to
    7
    the annular chamber 40 of the tension hydraulic cylinder, as well as through the switching valve 35 and the line 41 is connected to the annular chamber 42 of the tension hydraulic cylinder. The switching valve 31 can be switched by means of a hand lever 43 or the like so that in any case one of the cylinder chambers 40 or 42 remains connected to the flow hydraulic line 33 and the other cylinder chamber remains connected to the recirculation line 32. In addition, the valve 31 has a third the position at which both chambers 40 and 42 of the cylinder overlap.
    The movement cylinder 16 is provided with a manually operated switching valve 44 and a pressure limiting valve 45. These valves are located on connecting lines 46 and 47, which connect both chambers 38 and 48 of the movement cylinders 16 to pressure hydroline 33 and recirculated hydroline 32.
    In the connection diagram shown, valves 31 and 35 are turned on so that both chambers 40 and 42 of tensioning hydraulic cylinders are hydraulically closed and this is secured by a pressure limiting valve 34. To push the piston or supply fluid to the chamber 42 of the tension cylinder, the valve 31 is switched 33 through switching valve 35 and line 41 would be connected to the cylinder chamber 42, and the cylinder chamber 40 to the recirculation line 32. To reverse the piston movement, the annular cylinder chamber 40 through the valve 31 is connected to a pressure hydrolysis valve. Nia, a cylinder chamber 42 with the recirculation line. If the corresponding fastening element 15 is to be moved, then by switching valve 44 to the chamber 38 of the movement cylinder 16, hydraulic fluid is supplied under pressure. Since the cylinder chamber 38 via the control line 37 is connected to the servo-cylinder 36 of the switching valve 35, the hydraulic-switching valve is given a signal that connects the line 41 through the switched valve 35 to the auxiliary line 49 through the recirculation 32 connected to it, mine valve
    064508
    31. Due to this, the pressure in the working chamber 42 of the tensioning hydraulic cylinder is relieved. The connection diagram is made in such a way that at this 5 position of the switching valve 35, the corresponding tensioning hydraulic cylinder by switching the valve 31 is loaded with fluid pressure, i.e. the liquid under pressure 10 is not supplied to the cylinder chamber 42, and the latter is connected to the recirculation system. As soon as the fastener is moved and the chamber 38 of the qi5 of the movement lander 16 is unloaded from the fluid pressure, the switch valve 35 returns to its original position under the action of the return spring, at which the hydraulic fluid can be fed into the tension cylinder chamber 38.
    FIG. 5 shows hydraulic control of tension cylinders 17 5 to 22, which are provided with manually operated valve 31 and pressure limiting valve 24. A group of cylinders equipped with pressure reducer 50 through which the high pressure of hydraulic fluid P in the bottom line 33 decreases to a variable lower operating pressure P in line 51, to which the tension cylinders are connected using a switching valve 31. Due to this, it is possible to regulate the operating pressure of the tensioning hydraulic cylinders regardless of the high operating pressure tim cylinders 16 pereQ movement, feeding plow for slaughter and tension forces depending on skladyvayu-. conditions.
    Control device (Fig. 5). (It also has a metering device, known for use on cylinders for movement, which consists of a metering cylinder 52 with corresponding switching valves 53 and 54, by means of which metered quantities of hydraulic fluid are supplied to separate tensioning hydraulic cylinders. This makes it possible to meter out the movement of the conveyor and / or 5 mining installations and tension cylinders do not lose the tension due to the movement forces developed by the movement cylinders.

    In the control tool according to FIG. 5, the tension cylinders are not equipped with hydraulic pressure-adjustable switching valves 35. However, such a device may be equipped with similar switching valves. Servo controlled shift valves 35 can also be connected to the discharge chambers of the hydraulic cylinders of the respective fasteners via lines.
    06-45010
    control 35 with the possibility of switching depending on the pressure in the discharge chamber.
    5 Such an embodiment of a tension device for a conveyor and mining installation, in particular for a plow installation, makes it possible to automate the unloading of tension hydrocylinders when moving the support sections, to increase the reliability of operation and to simplify the design.
    te
    18
    Sriz.g
    g
    Jff J5 J 30 W
    18
    -f
    / 5 degl
    75
    -/-/five
    权利要求:
    Claims (5)
    [1]
    1. TENSIONING DEVICE OF CONVEYOR AND MINING INSTALLATION,
    In particular, the milking unit, including tension hydraulic cylinders, valve distributors with control valves and articulated on support sections with hydraulic racks, which are connected through conveyor hydraulic cylinders to the conveyor and production unit, and hydraulic lines, characterized in that, in order to increase automation of tension loading hydraulic cylinders when moving the lining sections, the reliability of operation and simplification of the design, valve switchgear tensioning hydraulic cylinders are equipped with trolled switching valves associated with the hydraulic lines gidrostoykami support frames or advancing cylinders.
    [2]
    2. The device according to p. 1, characterized in that the controlled switching valves are installed in the hydraulic line connecting the cavity of the tension hydraulic cylinder with a drain and from the outlet side connected to the output of the control valve.
    [3]
    3. The device according to paragraphs. 1 and 2, characterized in that it is equipped with a metering device for the metering loading of the tension hydraulic cylinder.
    [4]
    4. The device pop. 3, characterized in that a common dosing device is associated with each group of tension hydraulic cylinders
    [5]
    5. The device according to paragraphs. 1-4, characterized in that a pressure reducer is provided for loading the tension hydraulic cylinders with variable working pressure.
    SU <„1106450
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1106450A3|1984-07-30|Tension arrangement for conveyer and mining installation,particularly for plough set
    US4461378A|1984-07-24|Side discharge conveyor assembly
    US5222593A|1993-06-29|Reciprocating floor conveyor and drive system therefor
    US3779023A|1973-12-18|Shield roof support
    US5228555A|1993-07-20|Load positioning and conveying system
    RU2749163C1|2021-06-07|Device for discharge of piece goods from bunker
    US3504944A|1970-04-07|Devices for tensioning a conveyor in a mineral mining installation
    US3085675A|1963-04-16|Folding conveyor
    SU614739A3|1978-07-05|Tightening device of conveyer load-carrying member
    US4338058A|1982-07-06|Synchronized hopper gate
    GB798414A|1958-07-23|Improvements in control mechanism for hydraulically operated equipment
    RU2043503C1|1995-09-10|Tunneling complex
    US2990168A|1961-06-27|Mining apparatus
    US3726097A|1973-04-10|Conveyor guiding and anchoring props for mining installations
    SU1253462A1|1986-08-30|Fertillizer distributor
    RU2046742C1|1995-10-27|Head of scraper conveyor with sliding drive
    RU93015551A|1995-08-27|DEVICE FOR FEED DISTRIBUTION
    SU1090883A1|1984-05-07|Apparatus for controlling power support
    RU2019478C1|1994-09-15|Angular flight conveyer
    SU1435777A1|1988-11-07|Installation for manless mining extraction of minerals
    SU1446333A1|1988-12-23|Front-loading unit
    RU2234601C2|2004-08-20|Cleaning machine
    US2719642A|1955-10-04|Hopper car with multiple reciprocating conveyors
    SU1758240A1|1992-08-30|Unit of unitized-aggregated powered support
    US3128871A|1964-04-14|huber
    同族专利:
    公开号 | 公开日
    US4169689A|1979-10-02|
    DE2712388C2|1986-04-10|
    DE2712388A1|1978-10-05|
    CS264253B2|1989-06-13|
    GB1593016A|1981-07-15|
    FR2384942A1|1978-10-20|
    CS47178A2|1988-09-16|
    BE864390A|1978-06-16|
    FR2384942B1|1982-12-31|
    ES468145A1|1978-12-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7440445U|1975-05-22|Ruhrkohle Ag|Bracing device for face conveyors|
    DE1252158B|1967-10-19|Dowty Mining Equipment Limited, Ashchurch, Tewkesbury, Gloucester |Pit lining with a device for aligning the rear cylinders|
    DE1028515B|1955-04-14|1958-04-24|Arnold Haarmann Dr Ing|Wandering pit construction for mining coal and the like like|
    DE1183463B|1959-01-08|1964-12-17|Hansjoachim Von Hippel Dr Ing|Face conveyor tensioning and return device|
    US3072241A|1959-09-09|1963-01-08|Gewerk Eisenhuette Westfalia|Apparatus for displacing a longitudinal mining conveyor|
    GB930838A|1960-08-31|1963-07-10|Gullick Ltd|Improvements in or relating to roof supports for mines and the like|
    DE1206383B|1962-04-13|1965-12-09|Glueckauf Guenther Klerner Mas|Stepping suspension or fixing device for the end station of a conveyor, especially in planing struts|
    FR1333524A|1962-09-13|1963-07-26|Klerner Maschf Glueckauf|Improvements to support devices for size conveyors used in mines|
    US3447328A|1966-04-30|1969-06-03|Bergwerksverband Gmbh|Mine roof supports|
    DE1932378A1|1969-06-26|1971-01-07|Gullick Dobson Ltd|Self-advancing pit support element|
    DE1941094C3|1969-08-13|1978-09-14|Gewerkschaft Eisenhuette Westfalia, 4670 Luenen|Bracing device of a face conveyor in the route|
    DE2046624C3|1970-09-22|1979-03-22|Gewerkschaft Eisenhuette Westfalia, 4670 Luenen|Device for anchoring and bracing the drive station of a retractable mining tractor|
    DE2059471C3|1970-12-03|1980-05-14|Gewerkschaft Eisenhuette Westfalia, 4670 Luenen|Face conveyor partial tensioning device|
    DE2234964C3|1972-07-15|1981-12-24|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Control for a face conveyor partial anchoring|
    DE2432767C3|1974-07-08|1980-05-29|Maschinenfabrik Glueckauf Beukenberg Gmbh & Co, 4650 Gelsenkirchen|Bracing device for conveyors in collapsing struts|DE2917047A1|1978-01-28|1980-11-06|Gewerk Eisenhuette Westfalia|DEVICE FOR THE FINAL SUPPORT OF AN SCREW EXTENSION IN SLOPED AND STEEP POSITION|
    DE2942943C2|1979-10-24|1981-11-26|Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal|Device for maintaining the specified center-to-center distance of the support elements of a step support for the dismantling of long fronts|
    DE3001994A1|1980-01-21|1981-07-30|Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum|STREBAUSBAU FOR THE STRONG SLOPED STORAGE|
    DE3024216C2|1980-06-27|1985-08-01|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Block bracing for a moveable conveyor and / or extraction system|
    DE3122952C2|1981-06-10|1989-08-31|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|
    DE3715781C2|1987-05-12|1991-09-12|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|
    DE3715782C2|1987-05-12|1996-05-30|Westfalia Becorit Ind Tech|Guy device|
    US8636140B2|2010-04-26|2014-01-28|Joy Mm Delaware, Inc.|Chain tension sensor|
    GB2469815B|2009-04-28|2012-08-29|Joy Mm Delaware Inc|Armoured face conveyor extendable at head gate end|
    CN111911215A|2020-08-06|2020-11-10|中煤科工开采研究院有限公司|Hydraulic support retracting method suitable for length reduction of fully mechanized caving face|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2712388A|DE2712388C2|1977-03-22|1977-03-22|Bracing device for conveyor and / or extraction systems in underground extraction operations|
    [返回顶部]