Intelligent gate of underground vibration ore drawing machine

Abstract

The utility model belongs to the technical field of vibration ore drawing machines, and discloses an intelligent gate of an underground vibration ore drawing machine, which comprises the vibration ore drawing machine, a split type gate is arranged at the bottom of a brow line beam of the vibration ore drawing machine, the split type gate comprises a rotating shaft and a plurality of gate plates, shaft seats are fixedly mounted at two ends of the rotating shaft, and the gate plates are arranged on the shaft seats. The shaft seat is fixedly arranged at the bottom of a brow line beam of the vibratory ore drawing machine, the tail parts of the flashboards are fixedly connected with shaft sleeves, the shaft sleeves are sleeved outside the rotating shaft, and the plurality of flashboards cover an ore outlet of the vibratory ore drawing machine side by side. Opening and adjustment of the four gate plates are controlled by the four oil cylinders respectively, can be controlled independently and can also be controlled integrally, the opening degree of the gate is further accurately controlled so as to adapt to release of slag blocks of different shapes and sizes, and the situation that normal production is affected or equipment components are damaged due to equipment jamming is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibration ore pass, specifically relates to an underground vibration ore pass intelligent gate. BACKGROUND

[0002] The original design of the opening and opening degree adjustment of the gate plate of the underground vibration ore pass is realized by the rotation of the motor through the screw nut mechanism, but the screw nut is often stuck and cannot work normally due to the impact of irregular ores of different shapes and sizes in the process of ore slag discharge.

[0003] Although the simple electric hoist device can adjust the opening of the gate plate, it cannot bear the impact force of the ore slag and is not controlled. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an underground vibration ore pass intelligent gate, which solves the above technical problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An underground vibration ore pass intelligent gate, comprising a vibration ore pass, a split gate is arranged at the bottom of the brow beam of the vibration ore pass, the split gate comprises a rotating shaft and a plurality of gate plates, shaft seats are fixedly installed at both ends of the rotating shaft, the shaft seats are fixedly installed at the bottom of the brow beam of the vibration ore pass, shaft sleeves are fixedly connected to the tail portions of the gate plates, the shaft sleeves are sleeved outside the rotating shaft, a spacing sleeve is arranged between adjacent two shaft sleeves, the plurality of gate plates cover the ore outlet of the vibration ore pass side by side, connecting plates are fixedly connected to the top portions of the gate plates and close to the middle portions, the connecting plates are hingedly connected to one end of a damping buffer, the other end of the damping buffer is fixedly installed at the output shaft end portion of an oil cylinder, a hinged lug is hingedly connected to the bottom of the top H-shaped steel of the vibration ore pass, each oil cylinder is communicated with a hydraulic station through an oil circuit, the hydraulic station is provided with a plurality of constant displacement pumps, and the hydraulic station drives each oil cylinder to stretch and retract alternately through each constant displacement pump.

[0007] In a preferred embodiment of the utility model, the oil inlet and the oil outlet of the oil cylinder are respectively communicated with an electromagnetic reversing valve through an oil delivery pipeline and an oil return pipeline, the oil delivery pipeline and the oil return pipeline are both provided with a one-way throttle valve, a pressure reducing valve is arranged at the position of the one-way throttle valve and the electromagnetic reversing valve of the oil delivery pipeline, and a pressure sensor is arranged at the valve block of the pressure reducing valve.

[0008] In a preferred embodiment of the utility model, the oil cylinder's rodless cavity is communicated with the bladder accumulator through the overflow valve.

[0009] In a preferred embodiment of the utility model, each oil delivery pipeline is communicated with the hydraulic station after being connected in series, and each oil return pipeline is communicated with the hydraulic station after being connected in series through the filter.

[0010] In a preferred embodiment of the utility model, the periphery surface of the shaft sleeve is provided with a grease nipple.

[0011] The utility model has the advantages of:

[0012] The utility model discloses a four-piece split gate, which is controlled by four oil cylinders, and can be controlled individually or integrally. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a plane structure schematic view of the utility model;

[0014] Figure 2 It is a plane structure schematic view of the split gate;

[0015] Figure 3 It is an installation structure schematic view of the damping buffer;

[0016] Figure 4 It is a principle structure schematic view of the hydraulic station.

[0017] Reference signs; wherein, 1, oil cylinder;2, damping buffer;3, split gate;31, connecting plate;32, shaft seat;33, rotating shaft;34, shaft sleeve;35, interval sleeve;36, gate;37, grease nipple;4, hinged lug;5, vibrating ore pass;6, bladder accumulator;7, overflow valve;8, pressure reducing valve;9, electromagnetic reversing valve;10, constant displacement pump;11, filter;12, one-way throttle valve. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0019] Example:

[0020] like Figures 1-4 As shown, this embodiment provides an underground vibrating ore-drawing machine intelligent gate, including a vibrating ore-drawing machine 5, a split gate 3 is provided at the bottom of the eyebrow beam of the vibrating ore-drawing machine 5, and the split gate 3 includes a rotating shaft 33 and several gate plates 36. Both ends of the rotating shaft 33 are fixedly installed with shaft seats 32, and the shaft seats 32 are fixedly installed at the bottom of the eyebrow beam of the vibrating ore-drawing machine 5. The tail of the gate plate 36 is fixedly connected with a shaft sleeve 34, and the shaft sleeve 34 is sleeved on the outside of the rotating shaft 33. The shaft sleeve 34 is sleeved on the outside of the rotating shaft 33, and a spacer sleeve 35 is provided between two adjacent shaft sleeves 34. Several gate plates 36 are arranged side by side to cover the ore outlet of the vibrating ore discharger 5. A connecting plate 31 is fixedly connected to the top and near the middle of the gate plate 36. The connecting plate 31 is hinged to one end of the damping buffer 2. The other end of the damping buffer 2 is fixedly installed at the end of the output shaft of the cylinder 1. The bottom of the cylinder seat of the cylinder 1 is hinged with a hinged ear 4. The hinged ear 4 is fixedly installed at the bottom of the H-shaped steel at the top of the vibrating ore discharger 5. Each cylinder 1 is connected to the hydraulic station through an oil circuit. The hydraulic station is equipped with several metering pumps 10. The hydraulic station drives each cylinder 1 to extend and retract alternately through each metering pump 10.

[0021] In a preferred embodiment of the present utility model, further, the oil inlet and oil outlet of the oil cylinder 1 are connected to the electromagnetic reversing valve 9 through the oil supply line and the oil return line respectively, and a one-way throttle valve 12 is provided at the oil supply line and the oil return line. A pressure reducing valve 8 is provided on the oil supply line and located between the one-way throttle valve 12 and the electromagnetic reversing valve 9, and a pressure sensor is provided at the valve block of the pressure reducing valve 8.

[0022] In a preferred embodiment of the present invention, a relief valve 7 is further provided on the oil delivery pipeline near the rodless chamber of the oil cylinder 1 , and the rodless chamber of the oil cylinder 1 is connected to the bladder accumulator 6 through the relief valve 7 .

[0023] In a preferred embodiment of the present invention, further, each oil delivery pipeline is connected in series and then communicated with the hydraulic station, and each oil return pipeline is connected in series and then communicated with the hydraulic station through the filter 11 .

[0024] In a preferred embodiment of the utility model, further, the four peripheral surfaces of the shaft sleeve 34 are provided with butter nozzles 37.

[0025] Specifically, the intelligent gate controls the opening size of the gate plate 36 through four oil cylinders 1 respectively, accurately controls the speed and frequency of ore discharging, and thus improves the efficiency of belt ore conveying.

[0026] A pair of pivot points are formed by installing the rotating shaft 33 and the shaft seat 32 under the front H steel of the vibrating ore discharging machine 5, four gate plates 36 are installed on the rotating shaft 33 and are separated by the spacer sleeve 35, the specification of the gate plate 36 is 1500*200, the butter nozzles are designed at the shaft sleeve 34 to fully lubricate, the four oil cylinders 1 are connected with the gate plate 36 through the pin shaft to realize the up-down movement, and the opening size of the gate plate 36 is intelligently adjusted.

[0027] A flexible damping body buffer is installed at the end of the piston rod between the oil cylinder 1 and the gate plate 36 to reduce the impact of the ore on the oil cylinder 1.

[0028] To further reduce the impact of the ore on the oil cylinder 1, a bladder accumulator 6 is arranged on the rodless cavity of each oil cylinder 1 through the overflow valve 7, the impact energy of the ore slag is absorbed through the air bag, the oil cylinder 1 can be installed on the wall and connected with the hydraulic station through the pipeline.

[0029] To ensure the accurate positioning of the gate plate 36 and the pressure of the rodless cavity of the oil cylinder 1, a one-way throttle valve 12 and a pressure reducing valve 8 are stacked below the electromagnetic reversing valve 9, which is used for pressure reduction of the rodless cavity, and the valve block is provided with a pressure measuring point to detect the pressure of the two cavities of the oil cylinder 1 at any time.

[0030] Design of the hydraulic station:

[0031] Considering the site conditions, it is not convenient to set up a cooler, and it is recommended to adopt an energy-saving hydraulic station design, that is, a servo motor controls the rotating speed of the quantitative pump 10, and the system is provided with energy as needed, basically without energy waste, and the hydraulic station basically does not heat.

[0032] The oil tank volume of the hydraulic station is 500L, is provided with a liquid level control indicator, has a liquid level alarm and interlocking function, has an oil return filter 11, and has a filter 11 blockage alarm function, and has an electronic pressure relay, a system pressure display function and cooperation with the servo system.

[0033] The maximum working pressure of the hydraulic station is 200bar;

[0034] The maximum flow is 43.5L / min;

[0035] The working time of a single oil cylinder 1 is 8S (the piston rod is stretched out);

[0036] Piston rod retraction: 4S;

[0037] Two operating modes of hydraulic station: remote or on-site;

[0038] The schematic diagram is shown in Figure 4 .

[0039] The setting of the oil cylinder 1:

[0040] The basic parameters of the oil cylinder 1: cylinder diameter: 80mm;

[0041] Piston rod diameter: 56mm;

[0042] Stroke: 750mm;

[0043] Maximum working pressure: 160bar;

[0044] Mounting mode: tail ear ring;

[0045] The oil cylinder 1 requires sufficient guide length and reliable sealing system, we designed a guide sleeve with a length of 125, built-in two pieces of PTFE filled guide ring, two pieces of POM enhanced guide ring, imported PARKER sealing ring: a piece of St seal, two pieces of C type sealing ring and a dust ring.

[0046] The piston length is 80mm, configured with imported PARKER seal: three guide rings and two pieces of B7 type sealing ring with excellent sealing performance and impact resistance. In order to improve the strength and bending resistance of the piston rod, the piston rod material is selected to be 40Cr quenched and tempered.

[0047] Finally, it should be pointed out that: the above only the preferred embodiments of the utility model, and does not limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An intelligent gate for an underground vibrating ore pass draw machine, comprising a vibrating ore pass draw machine (5), characterized in that, The brow beam bottom of the vibrating ore pass (5) is provided with a split gate (3), the split gate (3) comprises a rotating shaft (33) and a plurality of gate plates (36), both ends of the rotating shaft (33) are fixedly installed with shaft seats (32), the shaft seats (32) are fixedly installed on the brow beam bottom of the vibrating ore pass (5), the tail of the gate plate (36) is fixedly connected with a shaft sleeve (34), the shaft sleeve (34) is sleeved outside the rotating shaft (33), a spacing sleeve (35) is arranged between adjacent two shaft sleeves (34), a plurality of gate plates (36) cover the ore outlet of the vibrating ore pass (5) side by side, the top of the gate plate (36) and close to the middle part are fixedly connected with a connecting plate (31), the connecting plate (31) is hinged with one end of a damping buffer (2), the other end of the damping buffer (2) is fixedly installed on the output shaft end of an oil cylinder (1), the bottom of the cylinder seat of the oil cylinder (1) is hinged with a hinged lug (4), the hinged lug (4) is fixedly installed on the top H-shaped steel bottom of the vibrating ore pass (5), each oil cylinder (1) is communicated with a hydraulic station through an oil way, the hydraulic station is provided with a plurality of constant displacement pumps (10), the hydraulic station drives each oil cylinder (1) to stretch and retract alternately through each constant displacement pump (10).

2. The intelligent gate for an underground vibrating ore draw for a mine as claimed in claim 1, characterized in that, The oil inlet and the oil outlet of the oil cylinder (1) are communicated with an electromagnetic reversing valve (9) through an oil delivery pipeline and an oil return pipeline respectively, the oil delivery pipeline and the oil return pipeline are both provided with a one-way throttle valve (12), the oil delivery pipeline and located between the one-way throttle valve (12) and the electromagnetic reversing valve (9) is provided with a pressure reducing valve (8), the valve block of the pressure reducing valve (8) is provided with a pressure sensor.

3. The intelligent gate for an underground vibrating ore draw for a mine as claimed in claim 2, characterised in that, The oil delivery pipeline is provided with an overflow valve (7) close to the rodless cavity of the oil cylinder (1), the rodless cavity of the oil cylinder (1) is communicated with a bladder accumulator (6) through the overflow valve (7).

4. The intelligent gate for an underground vibrating ore draw for a mine as claimed in claim 3, characterised in that, Each oil delivery pipeline is connected in series and communicated with the hydraulic station, each oil return pipeline is connected in series and communicated with the hydraulic station through a filter (11).

5. The intelligent gate for an underground vibrating ore draw for a mine as claimed in claim 4, characterised in that, The periphery surface of the shaft sleeve (34) is provided with a grease nipple (37).

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