1033results about "Driving means" patented technology

The invention discloses a crushing mechanism for a coal mining device, comprising a main body part (1), a power component installed on the main body part (1) and a work component (2) driven by the power component, wherein the power component is used for driving the work component (2) to do the reciprocating straight line motion. In the work process of the crushing mechanism, the straight line motion does not generate a centrifugal force, thereby preventing the crushed coals from flying out in crushing process and guaranteeing the personal safety of the staffs in the tunnel; meanwhile, the coal crushed by the straight line motion is not cut into powders so as to prevent coal dusts from flying in the tunnel and to improve the air quality in the tunnel; in addition, the single motion stroke of the straight line motion is large so as to improve the crushing efficiency of the crushing mechanism. The invention further discloses a coal mining device including the crushing mechanism.

The invention relates to an automatic height-adjusting test device of a coal mining machine roller and a control method. The device comprises a device body, a rocker arm, a roller, a height adjusting pump station, sensors, an inclined angle controller and a displacement controller, wherein the device body is articulated with the rocker arm; the output end of the rocker arm is connected with the roller; the height adjusting pump station is used for driving the rocker arm and the roller to move by an oil cylinder and simulating the running condition of a coal mining machine; the inclined angle sensors are arranged on both the device body and the rocker arm; the displacement sensor is arranged on the oil cylinder; the output of the inclined angle sensors on the device body and the rocker arm is compared with a corresponding inclined angle preset value, and an error is used as the input of the inclined angle controller; the output of the inclined angle controller is used as a preset value of the oil cylinder displacement controller and compared with the output data of the oil cylinder displacement controller, and an error is transmitted to the oil cylinder displacement controller; and the output of the oil cylinder displacement controller is used for controlling the opening and the direction of a servo valve and realizing the height adjustment of the roller. The invention is used for a test for researching the change of a cutting medium on the performance requirement of the roller height adjusting device and a test for researching the influence of oil cylinder displacement fluctuation on the height of the roller.

The invention provides a tunnel mining machine, which belongs to mining tunneling equipment. The tunnel mining machine comprises a chassis (1), a crawler travel mechanism (2), a rotary base (3), a large arm (5), a mining mechanism (6) and an operation device, wherein the rotary base (3) is arranged on the chassis (1); a main machine is driven by a power unit which is a motor; the power of the whole machine is supplied by an external power distribution device; an ore conveying channel is arranged under the chassis (1) or an ore conveying mechanism is arranged above the crawler of the crawler travel mechanism (2); and the mining mechanism (6) is arranged on the large arm (5). The tunnel mining machine has a simple structure, facilitates ore conveying, saves a working space when mining in a tunnel, can freely walk and move and be remotely controlled, and realizes integrated uninterrupted mining operation with high mining efficiency.

The invention provides a roadheader, a system and a method. According to the roadheader, the system and the method, three-dimensional space coordinates of the roadheader can be tracked and measured inreal time to realize the millimeter levelpositioning accuracy of the set distance within the visual range, remote control operation and automatic control over the roadheader are facilitated, and themovement path and the speed of a cutting head as well as the direction, position and posture of a roadheader body can be automatically adjusted according to the position change of the roadheader and the rock wall hardness change of a heading working face roadway.

The method provided by the invention comprises the following steps: a machine body, a walking part, a lifting part, a reciprocating pounding part and the like are arranged; a pounding guide element and the like are arranged on a pounding guide device; pounding heads are arranged at two ends of the pounding guide element, so that a power pounding element drives the pounding guide element; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; and the walking part drives the machine body to move ahead and retreats so as not to turn the machine body to excavate and drop materials forward and backward. Equipment provided by the invention comprises the machine body, the walking part, the lifting part, the reciprocating pounding part and the like; the reciprocating pounding part comprises the pounding guide device, the pounding driving device and the like; the pounding heads are both arranged at two ends of the pounding guide element; the pounding driving device comprises the power pounding element and the like; the power pounding element drives the pounding guide element to move in a reciprocating mode; the pounding guide element drives the pounding heads to pound; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; the walking part drives the machine body to move ahead and retreat so as not to turn the machine body to excavate and drop materials forward and backward.

The invention discloses a high-power heavy low seam mining machine, which comprises a machine body, a left traction part, a right traction part, a left cutting part, a right cutting part, a swinging arm elevating hydraulic system and an electric control system, wherein the electric control system comprises an electric control box and a controller; the left cutting part comprises a left swinging arm, a left roller and left cutting motors; the right cutting part comprises a right swinging arm, a right roller and right cutting motors; the left traction part comprises a left traction motor and a left traction transmission mechanism; the right traction part comprises a right traction motor and a right traction transmission mechanism; the left cutting motors, the right cutting motors, the left traction motor, the right traction motor and swinging arm elevating hydraulic system are controlled by the controller; and two left cutting motors and two right cutting motors are provided. The high-power heavy low seam mining machine has the advantages of reasonable design, high overall power, high mining efficiency, stable and reliable working performance and good using effect, and can be used for solving the problems of low power, low mining efficiency, poor using effect and the like existed in the conventional coal mining machine in the mining process of a low coal seam.

The invention provides a comprehensive mechanized rock roadway tunneling machine, which comprises a caterpillar traveling part, a belt conveyer part, a body mounted on the caterpillar traveling part, a top slope anchor rod anchor cable drill, an operating table and a hydraulic and control system, and is characterized by also comprising at least one cutting device, a vertical swing pushing device, a temporary support, a front fixing device and a rear fixing device, wherein the cutting device is arranged on the vertical swing pushing device and is arranged on the front part of the body; the temporary support and the front fixing device are arranged on the two sides of the front part of the body; the top slope anchor rod anchor cable drill is arranged in the middle of the front part of the body; the operating table and the hydraulic and control system are arranged on the body; and the rear fixing device is arranged in the rear lower space of the body. By using the machine, mechanized construction level is further improved, labor intensity of construction personnel and the construction personnel are reduced, field operation environment is improved, occupational diseases are reduced, and safety and working efficiency are improved; and the machine can be suitable for rock roadway construction of various large, medium and small-sized mines.

A mining machine including a cutting mechanism comprising an arm having an arm end, a disc cutter adapted to engage the material to be mined and mounted on the arm end. The disc cutter is driven by the arm into the material to be mined, and the arm further includes a main portion, and a wrist portion pivotally attached to the main portion.

The invention discloses an adaptive excavating integrated machine. The adaptive excavating integrated machine comprises a gantry assembly installed on a complete machine underbed, a fixing platform installed on the complete machine underbed, a working mechanism for providing operation, a drill machine supporting mechanism, a conveying mechanism for conveying materials, a laser device, a walking mechanism installed below the underbed and switched between crawler-type walking and wheel-type walking, a hydraulic mechanism, a driving mechanism for providing power for the complete machine and a cab assembly. The working mechanism comprises an excavating working arm mechanism installed at the front end of the gantry assembly and a cutting working arm mechanism installed above the gantry assembly, and the excavating working arm mechanism and the cutting working arm mechanism can be switched for working; the laser device assists the cutting working arm mechanism in rock crushing, and the drill machine supporting mechanism drills anchor rope supporting holes in the top of a roadway. By means of the technical scheme, multiple walking, crushing, cutting, excavating, loading and supporting functions are achieved, continuous excavating, loading and conveying work is achieved, applicability is high, the integrated machine is multipurpose, acquisition cost is saved, the number of operation process workers is reduced, working efficiency is improved, engineering quality is improved, and working safety is ensured.

The invention discloses a self-positioning system and a self-positioning method for a coal mining machine. The self-positioning system comprises a controller, a walking position detection unit for detecting a walking position of the coal mining machine in real time, a left mining height detection unit for detecting the mining height of a left rocker arm of the coal mining machine in real time, a right mining height detection unit for detecting the mining height of a right rocker arm of the coal mining machine in real time, and a display unit and a parameter input unit which are connected withthe controller. The self-positioning method comprises the following steps of: 1, inputting initial parameters; 2, synchronously performing self-positioning of the walking position of the coal mining machine and the mining heights of the rocker arms; and 3, outputting results. The invention has the advantages that: the self-positioning system is reasonable in design, easy and convenient to use andoperate, convenient to implement, good in using effect and high in positioning accuracy, can automatically accurately position the walking position of the coal mining machine and the mining heights of the rocker arms, and various practical problems that the conventional coal mining machine has low automation and intelligent degrees, does not have self-positioning function, has high labor intensity and poor using effect and the like are effectively solved.

The invention provides a flame-proof antistatic V-belt rubber, which adopts neoprene adhesive variety which has excellent fire-proof property, adds traditional natural gum, butylbenzene rubber and neoprene adhesive in order to modify process property, then adds various fire retarding agent which has excellent antistatic and fire-proof property, wherein fire-proof property can respectively reach that flame combustion average time is no more than 5 seconds, and flameless combustion average time is no larger than 7 seconds, and simultaneously meets the base process technique property of V-belt and various physical mechanical properties which are required by criterion.

A mining machine including a cutting drum, a plurality of bits mounted on the cutting drum, a base, and a boom extending between the base and the cutting drum for mounting the drum on the base. The mining machine further includes a primary cutting drum turning mechanism attached to the boom and in driving connection with the cutting drum for causing cutting movement of the cutting drum at a cutting drum cutting speed, and a secondary cutting drum turning mechanism attached to the boom and in driving connection with the cutting drum for causing turning movement of the cutting drum at a speed much less than the cutting drum cutting speed.

The invention discloses a roller electrical speed regulating system for coal mining equipment, which comprises a first detection element, a control element and a speed regulating element. In the system, the rotation speed of the roller can adapt to randomly changing condition of a coal cutting coal bed, so as to prevent the roller from being damage by an encountered hard coal bed and prolong the service life of the roller; meanwhile, under a normal use condition, for example the coal mining equipment works on a soft coal bed, the roller can rotate at a high speed to ensure the coal mining efficiency of the coal mining equipment. The control element also can regulate a traction speed by the traction speed regulating element, so that the traction speed of a coal mining machine and a cutting speed are consistent enough to realize high-efficiency cutting. The control element also can detect the coal loading effect of the roller and receive the stress condition of a conveyor through the detection element so as to control the cutting and traction speeds of the coal mining machine and ensure the high yield and efficiency of the fully mechanized coal mining equipment. The invention also discloses the coal mining equipment having the roller electrical speed regulating system.

The invention discloses a mining method applicable to full-seam mining with large mining height of a coal seam with the thickness of 7-10m. The coal seam of a working face is divided into an upper part, a middle part and a lower part, and is mined by a three-roller coal miner; two end rollers of the coal miner are mainly used for cutting the upper part and the lower part of the coal seam; a middle roller is used for cutting the middle part of the coal seam; two end parts of the three-roller coal miner are connected with small-diameter rollers via long rocker arms; the middle part of the three-roller coal miner is provided with the large-diameter roller with a short rocker arm; the two end parts of the three-roller coal miner are provided with the equal-diameter rollers with equal long rocker arms; the short rocker arm is arranged on a bottom bracket of the coal miner; the three-roller coal miner is matched with a scraper plate conveyer and an extra large mining height hydraulic support to achieve automatic end part beveling feed. According to the invention, the three-roller coal minder is adopted for full-seam mining with large mining height for the coal seam with the thickness of 7-10m, and can solve the problems of low resource recovery ratio, spontaneous ignition of the coal seam, low efficiency and the like of existing full-mechanized caving mining and layered mining, and the feasible large mining height mining method is provided for the coal seam with the thickness of 7-10m.

The invention discloses a construction method of an attitude angle regulating model of a manless working face coalcutter for a thin seam, belonging to a construction method of an attitude angle regulating model of a coalcutter. The construction method is characterized in that a situation that gyrocopes are installed on the machine body, the front roller and the rear roller of the manless working face short machine body coalcutter is taken as a basic to construct the attitude angle regulating model of the manless working face coalcutter; when the coalcutter is drawn back and forth to perform automatic memory coal cutting on the manless working face, a primary coordinate system is established in the center of the coalcutter, and an interconversion principle between the primary coordinate system and a space coordinate system is combined, so as to derive the conversion between the moving coordinate system and the primary coordinate system after the attitude angle of the coalcutter is regulated; the inclined angle of the roller rocker is measured after the initial inclined angle and the attitude angle of the coalcutter are regulated through a gyroscope, so as to further construct a control model for attitude angle regulation and automatic roller height adjustment. The construction method disclosed by the invention has the advantages that operation is reasonable, and production benefit, safety and reliability are good; the control model control method improves the automation control of the coalcutter, improves the use performance, enhances the reliability and prolongs the service life of equipment.

The invention discloses a five-bit spiral-drill coal mining device convenient for switching drilling rods. The five-bit spiral-drill coal mining device comprises a supporting frame, a moving frame, a guiding rail, a hydraulic propelling oil cylinder, a hydraulic braking motor, a torque and rotating-speed sensor, a transmission box, the drilling rods, spiral bits, a tightening device, a lifting hydraulic cylinder, an auxiliary hydraulic oil cylinder, a drilling-rod supporting frame, a drilling-rod lifting frame and a drilling-rod bottom supporting frame and the like, wherein the hydraulic braking motor supplies power to the spiral bits and drives the spiral bits to rotate so as to realize cutting of a coal seam. A bit-feeding mechanism transfers the drilling rods to be switched to the switching position, and the automatic switching of the drilling rods is finished by cooperative work of the lifting hydraulic cylinder, the auxiliary hydraulic cylinder, the tightening device and the hydraulic propelling oil cylinder. The five-bit spiral-drill coal mining device disclosed by the invention has the advantages that hydraulic driving is adopted, the structure is simple and compact and the installation and the disassembly are convenient; compared with the prior art, the five-bit spiral-drill coal mining device disclosed by the invention has the beneficial effects that the needed time for switching the drilling rods is greatly reduced, the labor and the materials are saved, the efficiency for switching the drilling rods is improved, and support is provided for safe and high-efficiency mining of underground thin and ultrathin coal seams.

The invention discloses a cantilever type electric traction coal cutter, belonging to the field of coal mining machinery. The coal cutter comprises a coal cutter body, a cutting part, a hydraulic device and a towing device, wherein the coal cutter body is in three-section type horizontal arrangement and consists of an electric cabinet, a traction box and a traveling part; the coal cutter body is of a forward-extending type for reducing the height of the coal cutter, and the main parts of the cutting part and the coal cutter body extend to the outer side of a scraper conveyor; and a cutting motor and a traction motor are both horizontally arranged and assembled and disassembled from a coal wall side so as to be disassembled and replaced conveniently. According to the cantilever type electric traction coal cutter, as the main part of the coal cutter body extends to the outer side of the scraper conveyor and goes deep into a coal bed, the height of the coal butter is effectively reduced, and the coal cutter can be used for mining an extremely thin coal bed or thin coal bed which is 0.75-1.3m thick; and travelling wheels of the travelling part reciprocate on pin tracks on the conveyor, so that the coal cutter is driven to reciprocate for coal mining, and the whole coal cutter operates stably with low fault rate.

The invention discloses a drum shearer cutting part which comprises a rocker arm shell, a cutting motor, a rocker arm speed reduction box, a planetary gear mechanism and a cutting drum, wherein the cutting motor is directly and transversely arranged in the rocker arm shell, and the motor is fixed in the rocker arm shell through a bolt. A cutting part mechanical transmission comprises a rocker arm speed reduction box and a planetary gear speed reduction mechanism which are independent transmission parts. When a hard waste rock clamping coal bed shearer cutting part works, an output shaft of the cutting motor transmits power to the rocker arm speed reduction box, the power is transmitted to the cutting drum after subjected to speed reduction through a five-grade cylindrical gear and the planetary gear transmission, the cutting drum is linked with an output shaft of the planetary gear speed reducer by adopting a square connecting sleeve, with the advantages of reliability in linkage and convenience for disassembly. The cutting part has a simple and compact integral structure, strong exploitation capacity due to the adoption of the special strong hard waste coal bed clamping coal bed cutting drum, can be used for exploiting a waste coal clamping coal bed with a coal rock firmness exploitation efficiency f of less than 6 and meets the demands of exploitation of an underground hard waste coal clamping coal bed, thus the exploitation efficiency of the hard waste coal clamping coal bed and the exploitation recovery rate of coal resources are increased.

The invention discloses a multifunctional mine roadway milling and digging machine, which comprises a multifunctional work mechanism, a transportation mechanism, a walking device, a hydraulic system and an electric system, wherein the multifunctional work mechanism consists of a milling and digging mechanism and a digging mechanism. The digging mechanism and the digging mechanism are integrated to form the multifunctional work mechanism; the milling and digging mechanism firstly carries out large-range milking restoration, planing and restoration on a blasting dug irregular roadway; then, a large amount of slag and stones are dug through a grab excavator; next, materials are conveyed to the tail part through the self conveying mechanism. The multifunctional mine roadway milling and digging machine adopting the technical scheme has the advantages that the defects in the prior art are overcome, meanwhile, the functions of roadway milling restoration, bottom planing, digging and conveyance are realized; the roadway mining restoration, the bottom planing, the digging and the loading continuous operation can be realized, the operation is simple and convenient, the cost is reduced, the applicability to various complicated work conditions is high, the field applicability is effectively improved, and the roadway restoration efficiency is improved.