CN115949455A - Coal roadway fast excavation and self-moving coal bunker matching and realization method - Google Patents

Abstract

A coal roadway fast-digging self-moving coal bunker and a back matching system and a realization method belong to the field of coal mine coal roadway tunneling complete equipment and technical methods, equipment such as a mechanical horizontal coal bunker (4) and the like are arranged behind near-horizontal fast-tunneling equipment (1), automatic length adaptation of pipelines such as coal flow buffering, continuous transportation and ventilation, power supply, water supply, communication and the like along with the equipment is realized, real-time following extension of a tail of a telescopic belt conveyor is realized, back matching planning operation management based on a tunneling support interval of 1m is realized, and the continuity of the tunneling equipment (1) in each 5m operation cycle is facilitated; the rear matching system comprises a horizontal coal bunker (4), an equipment vehicle (3), a straddle transshipment conveyor (2), a self-extending tail (5) and the like, wherein the equipment vehicle (3) and the horizontal coal bunker (4) are combined to form a self-moving coal bunker; the method for realizing self-moving of all parts matched with the self-moving coal bunker and the method for normally operating the telescopic belt conveyor with the tail extending for 5m multiplied by 10 distances are described, wherein the method is used for realizing the self-moving of all parts matched with the self-moving coal bunker and the method is used for realizing the mutual cooperation of every 50m operation cycle, every 5m operation cycle and every 1m operation cycle.

Description

Coal roadway fast excavation and self-moving coal bunker matching and realization method

technical field

This patented technology arranges the mechanical self-moving horizontal coal bunker (4) in the supporting system after the rapid excavation of the coal roadway, which involves automatic coal flow buffering, continuous transportation and ventilation, power supply, water supply, communication and other pipelines moving with the equipment during rapid excavation. The length is adapted, which is beneficial to the continuity of the excavation of the excavation equipment (1) in every 5m excavation operation cycle; it illustrates the post-support system with the self-moving coal bunker as the core and the operation cycle of every 50m and the operation cycle of every 5m in the rapid excavation of coal roadway , The realization method of each 1m operation cycle cooperates with each other. The technology belongs to the field of complete sets of equipment and technical methods for tunneling in coal mines and roadways.

Background technique

With the continuous emergence of "high-performance roadheaders", their high performance is often subject to the reality that the supporting equipment cannot be matched, which also limits the further improvement of the overall mechanization and automation of the tunneling face. The tunneling equipment (1) and the coal-discharging system are interdependent. When there is a continuous and extended transportation technology, the tunneling capacity will be greatly improved.

The use of a complete set of mechanized equipment in coal mine roadway excavation can greatly improve the excavation efficiency and the safety and comfort of operators. The commonly used complete set of equipment consists of excavation equipment (1) followed by reloading, crushing, and transportation equipment. Usually These follow-up supporting transportation equipment are collectively referred to as supporting systems after excavation. Compared with the intermittent transportation system, the post-support system of continuous transportation has higher efficiency, but there are also problems such as longer auxiliary operation time, lower degree of mechanization, and shorter effective operation time of equipment.

According to Wang Yun of China Coal Science and Industry Group Taiyuan Research Institute Co., Ltd. published "Fast Excavation Supporting" in 2017, the commonly used post-excavation methods are: ① The conventional belt transfer transportation system is mainly composed of mobile crushers, belt transfer machines and telescopic The tail of the belt conveyor is composed. The unloading end of the belt loader is supported on the tail of the telescopic belt conveyor by a trolley, and its maximum effective lap stroke is L. After the standby tail is moved and the extension of the telescopic belt conveyor is completed, the next excavation can start Operation cycle; ②The rear supporting system of the series combined loader is composed of a mobile crusher, an upper belt loader, a lower belt loader and a tail of a telescopic belt conveyor; The upper belt transfer machine, the lower telescopic transfer machine and the tail of the telescopic belt conveyor are composed; ④The trailer-type supporting system is composed of a mobile crusher, a trailer and the tail of the telescopic belt conveyor. All of the above forms are designed to reduce the auxiliary working time such as pulling and moving the tail of the telescopic belt conveyor by increasing the effective lapping stroke L; reducing the number of cycles required for roadway formation, increasing the footage of a single operation cycle, and improving the efficiency of roadway excavation s method.

Lu Chengbin of Wangzhuang Coal Mine of Lu'an Mining Group Co., Ltd. published "Development of Horizontal Mechanical Coal Bunker in Driving Face", which introduced that the follow-up coal transportation system in the driving face needs many transfer links and long-distance transportation to complete. A horizontal coal bunker (4) is set between the belt conveyor on the excavation face and the main transportation equipment in the mining area, and the coal produced during the excavation process is temporarily stored in the coal bunker. After the bin is full, it is transferred to the belt conveyor in the mining area through the output equipment. , it is reasonable and effective to make the intermittent full-load operation of the belt conveyor in the mining area.

According to Wang Bukang of Taiyuan Research Institute of China Coal Science and Technology Co., Ltd. in the "Research Status and Development Trend of Coal Mine Excavation Technology" published in the "Intelligent Mine" magazine, the complete equipment system for efficient and rapid excavation consists of an integrated machine for digging and bolting, a bolt transfer machine, and a straddle bolt. Drilling rig, flexible continuous transport system, etc. Another media reported that China Coal Science Taiyuan Research Institute independently developed and manufactured the first high-end intelligent rapid excavation system in China. The total length of this complete set of equipment is more than 150 meters. Advanced intelligent rapid excavation system, one-button operation can realize parallel and continuous operations of excavation, support, and transportation, realize ground control of underground equipment, and increase excavation speed by 2 to 4 times.

According to the entry of "Extensible Belt Conveyor" in Baidu Encyclopedia, the length L of the storage bin must be able to store a roll of adhesive tape (50m or 100m). During operation, the telescopic belt conveyor shortens or prolongs the transportation distance of the whole machine by stretching the fuselage. The fuselage is gradually elongated in the state of advancing excavation, and several intermediate frames such as idler rollers, H frames, and longitudinal beams are connected according to the extended length.

Contents of the invention

purpose of invention

The present invention is based on the analysis of the existing coal roadway rapid excavation technology and background technical data, combined with the patent No. ZL201910186436.7 "an integrated machine for excavating and anchoring in coal mines and a method for parallel operation" The integrated machine for excavating and anchoring According to the characteristics of the operation, it is proposed to reduce the auxiliary working time, increase the footage of a single operation cycle, and improve the efficiency of roadway excavation.

Technical solutions

"A supporting system and implementation method for fast digging and self-moving coal bunkers in coal lanes" designed by the present invention includes horizontal coal bunkers (4), equipment vehicles (3), straddle reloading conveyors (2) and telescopic belt conveyors Machine self-extending machine tail (5) etc., horizontal coal bunker (4) and equipment car (3) combination have constituted self-moving coal bunker. The setting of the mechanical horizontal coal bunker (4) realizes coal flow buffering and continuous transportation, avoids the impact on the excavation operation of the excavation equipment (1) due to unplanned temporary shutdown of subsequent equipment, and completes the transportation, storage of materials and overlap between equipment; The equipment trolley (3) provides the movement, operation power and pulling anchorage for the mechanical horizontal coal bunker (4), and is arranged with redundancy and coordination of pipes and lines required for ventilation, power supply, water supply, communication, etc. to ensure the 5m excavation operation cycle The automatic adaptive control function of the front and rear equipment and oil cylinder is conducive to the continuity of the excavation equipment (1) in every 5m operation cycle; the long-span straddle reloading conveyor (2) is arranged on the excavation equipment (1) and the horizontal coal bunker (4) Between, realize the coal flow reloading of 5m operation cycle transportation; the design of the self-extending tail (5) of the telescopic belt conveyor provides the possibility to realize the extension of the telescopic belt conveyor automatically according to the requirement of the 5m operation cycle, and meets the requirement of every 50m operation According to the needs of circulation, the normal operation of the conveyor within a distance of 5m×10 autonomously extended is realized; through reasonable operation logic, the supporting system after the self-moving coal bunker can realize the coordination of 50m operation cycle, 5m operation cycle and 1m operation cycle.

The described supporting system behind the fast excavation of the coal roadway and the self-moving coal bunker is the continuous transportation system of the production materials of the excavation equipment (1) and the technical guarantee to ensure the continuous operation of the excavation operation, as well as the power supply, water supply, ventilation, The caching and connection measures of the dust removal and communication system during the rapid excavation process are suitable for near-horizontal roadways. Excavation equipment (1) generally refers to full-face excavation machines such as excavation machines, continuous miners, bolters, and integrated machines for excavating and anchoring used for rapid excavation of coal roadways. Pole car (7) is formed, requires steady speed advance, continuous operation, reduces unplanned downtime as far as possible. As shown in Figure 1, the tail of the straddle reload conveyor (2) is connected to a relatively fixed position under the head of the excavation equipment (1) scraper conveyor to receive materials, and the head is connected to the feed port of the horizontal coal bunker (4) (76), placed in the middle of the roadway and the tail of the excavation equipment (1) scraper conveyor on the same line; the self-moving coal bunker follows the back of the excavation equipment (1), placed on the side of the roadway and the telescopic belt conveyor The machine is on the same line, and the distance between its equipment vehicle (3) and the horizontal coal bunker (4) is relatively fixed; the self-moving coal bunker and the telescopic belt conveyor are on the side of the roadway, and the scraper conveyor at the discharge end The head section (70) is on the same line as the telescopic belt conveyor tail (5) from the extension machine tail. In this way, the rear supporting equipment is concentrated on one side of the roadway, and the length is greatly shortened, which provides convenience for the rapid transportation of materials required for excavation and the approaching of the excavation equipment (1).

The horizontal coal bunker (4) belongs to the category of mechanical coal bunkers, and its main body is a scraper conveyor (68), a cabin body, a spiral blade for guiding materials, and moving facilities, etc., consisting of a front coal bunker (63), a tail coal bunker ( 54), the coal bunker base plate (57) is composed of three major parts, and the dedusting fan (8) is placed on the tailing coal bunker (54). The front coal bunker is composed of nose cabin (69), closing bin cover (65), coal bunker cabin body (77), vertical spiral blade (64) and wheelset (58); tail coal bunker (54) is composed of tail cabin (53), feeding cabin body (75), horizontal helical blade (62) and wheel pair (58) etc. constitute; A rolling relationship is formed between the tailing coal bunkers (54); during the moving process of the horizontal coal bunker (4), the front coal bunker (63) and the tailing coal bunker (54) are fixed earlier, and the bottom plate of the coal bunker (57) is pulled for a distance, and then Fix the coal bunker bottom plate (57) and move the front coal bunker (63) and the tail coal bunker (54) by the same distance. In this way, the sliding friction is changed into rolling friction, which reduces the pulling force and can be reduced by increasing the bottom plate area. The specific pressure against the ground.

Horizontal coal bunker (4) shown in Fig. 8 is the shortest structure, can increase the coal bunker cabin body (77) of corresponding joint number and coal bunker bottom plate (57) to satisfy the requirement of required storage volume when needed. When the closing cover (65) of the horizontal coal bunker (4) is in opening and the scraper conveyor (68) runs at a constant speed, the horizontal coal bunker (4) only operates as a conveyor; When the slab conveyor (68) runs at a slow speed, the horizontal coal bunker (4) operates as a material storage device. At this time, the self-moving coal bunker does not move, allowing the excavation equipment (1), straddling reloading conveyor (2) and telescopic belt type Conveyor is in respective operation rhythm from extending machine tail (5).

The nose compartment (housing is hidden) (69) is arranged with a closing cover (65) that rotates around the closing shaft (66), arranged at the end of the ascending section of the scraper conveyor, and normally rotates to the top coal of the cabin body. The bunker is in the open state, the bunker closing cover (65) is driven by an oil cylinder or a motor, and rotates to the bin mouth to close the coal bunker; the head section (70) of the scraper conveyor overlaps with the self-extending tail (5), and the bottom There is a connection ear seat with the pulling cylinder (84); the support wheel (71) arranged under the head section (70) of the scraper conveyor rolls on the guide rail (81) arranged on the tail frame (80) to move the distance 0-5m, and below the beam (74) fixed to the scraper conveyor head section (70), there are arrays of lifting oil cylinders (73), these oil cylinders control the dynamic constant force of the lifting support wheels (72) rolling on the lower side, Make their supporting force to the bottom plate balanced and slightly smaller than that of the supporting wheels (71), and the two complement each other to realize full-span support to the head section (70) of the scraper conveyor. Longitudinal helical blades (64) are arranged in the coal bunker cabin body (77), and the coal storage on the top is pushed towards the nose direction. The tail cabin (53) is arranged with the tail of the scraper conveyor and the connecting lugs connected to the coal bunker traction cylinder (43) of the equipment vehicle (3) and the bracket (27) connected to the straddle section bracket (27) of the straddle transfer conveyor (2). Three-ring chain (56). The left and right structures of the tailing bunker (54) are asymmetrical, and the feeding port (76) protruding to the middle of the roadway is arranged with a feeding guide rail (55) for overlapping the head section and the straddling section of the straddling reloading conveyor (2) The wheel set (21) walks, and the three-ring chain (56) gradually expands the straddle section support (27) and limits the stroke in the process of the straddle section running to the lap joint end. The scraper conveyor groove arranged at the bottom of the feeding cabin body (75) and the coal bunker cabin body (77) together with the head, tail and scraper chain constitute the scraper conveyor (68). In order to adapt to the local ups and downs due to the trend of the bottom plate, the front coal bunker (63) and the tail coal bunker (54) are connected by a hinge shaft (60), which can deflect by 5°; the two coal bunker bottom plates (57) are connected by a ring The chains (59) are connected and have a certain activity margin; the end of the coal bunker bottom plate (57) near the tailing coal bunker (54) is arranged with an ear seat that links to each other with the traction cylinder (44) of the bottom plate of the equipment vehicle (3).

The horizontal coal bunker (4) scraper conveyor (68) adopts variable-speed operation, and its variable-speed driving mode can be a variable-speed motor or a variable-speed hydraulic motor or a gear box. Closing cover (65) controls the opening and closing of the coal bunker, and when it is rotated to the top of the cabin and is in the open position, it is the normal speed operation stage of the scraper conveyor (68); the closing cover (65) is rotated to the closed position and the scraper conveyor Closing, preventing the coal stream from flowing out, and utilizing the arc of the closed storehouse (65) to return the coal stream to the closed storehouse state, the scraper conveyor (68) runs slowly with low speed and high torque. After the material enters the feed cabin (75), the material is moved to the inside of the cabin under the guidance of the horizontal spiral blade (62), and the array of horizontal spiral blades (62) arranged side by side will also agitate and break the bulk in the material. Effect, along with material enters coal bunker cabin body (77) under the joint drive of scraper machine and vertical helical blade, surges forward to increase binning rate, until coal bunker is full bin.

The equipment trolley (3) is located between the tunneling equipment (1) and the horizontal coal bunker (4), has a relatively fixed distance from the horizontal coal bunker (4), and together constitutes a self-moving coal bunker. As shown in Fig. 6 and Fig. 7, the main equipment frame (30), electric control box (34), controller (35), pump group (31), valve group (33), oil tank ( 32), coal bunker traction cylinder (43), floor traction cylinder (44), roof support cylinder (39), floor support cylinder (45), folding air cylinder (37), straight air cylinder (36) and cable storage mechanism And so on.

The crawler walking mechanism provides power for the equipment vehicle (3) to walk by itself, and follows the moving program of the self-moving coal bunker to advance with the excavation equipment (1); the electric control box (34) not only supplies power to the pump group (31), but also provides power for the horizontal coal bunker. The scraper conveyor (68), horizontal helical blade (62), vertical helical blade (64) and straddle reloading conveyor (2) of the warehouse (4) provide power control; the controller (35) is the whole self-moving coal The logic control center of the bunker system electrical and hydraulic cylinders; pump group (31), valve group (33) are except providing power for the oil cylinder of this machine, but also for the closing cover (65) oil cylinder in the horizontal coal bunker (4) and with the Power is provided from hydraulic components such as the pulling oil cylinder (84) of the extended tail (5);

The top supporting oil cylinder (39) and the ground supporting oil cylinder (45) are auxiliary measures for stabilizing the equipment vehicle (3). When the equipment vehicle (3) pulls the horizontal coal bunker (4), the top and bottom plates are supported respectively so that the pulling force can be stably supplied. The pulling oil cylinder is divided into base plate pulling oil cylinder (44) and coal bunker pulling oil cylinder (43) two groups, first pulls moving coal bunker floor (57) and then pulls and moves tail coal bunker (54) and front coal bunker (63) to form a step Move; the top of the equipment car (3) is fixed with a pressure air duct (46) and a negative pressure exhaust duct (48), towards the one end of the excavation equipment (1) with a folding air duct (37), and the other end with a straight air duct ( 36), when the excavation equipment (1) and the equipment vehicle (3) are separated from each other, the folding air duct is gradually unfolded to ensure normal air supply and dust removal; the cable storage mechanism stores power cables, signal cables and water pipes, etc. There are two types of coiled cables, which can provide a 5m pipeline buffer between the excavation equipment (1) and the equipment vehicle (3), such as the cable rack (47) in Figure 6, the coiled cable device (49) in Figure 7, and the coiled cable device (49) in Figure 7. Water plumbing (50) cable storage mechanism, etc. Cable rack (47) is made up of suspension rail (38), block pulley (40), drop wheel block (41) etc., and extension cable (42) provides 1 between equipment trolley (3) and horizontal bunker (4). to 2m pipeline cache.

When the equipment vehicle (3) pulls the horizontal coal bunker (4), the coal bunker bottom plate (57) is pulled by the bottom plate traction cylinder (44) to move a certain distance, and then the tail coal bunker (54) is pulled by the coal bunker traction cylinder (43). ) and the front coal bunker (63) move the same distance to form a step and move. When the bottom plate traction cylinder (44) is pulled, the coal bunker traction cylinder (43) remains stationary, when the coal bunker traction cylinder (43) is pulled, the bottom plate traction cylinder (44) remains stationary, and both are stationary to maintain their respective displacements at the end of the pull Measure zero. In this way, the absolute distance control from the horizontal coal bunker (4) can be guaranteed, even when the horizontal coal bunker (4) is in a slope position with a potential slope tendency, the stability of the equipment cart (3) can be used to ensure that it will not slide by itself . The action of the coal bunker traction cylinder (43) is closely related to the pulling cylinder (84). When the coal bunker traction cylinder (43) pulls the horizontal coal bunker (4), the pulling cylinder (84) must be extended and the displacement of the two must be synchronized. , to ensure that the movement of the horizontal coal bunker (4) will not affect the safe operation of the self-extending tail (5).

The straddle reload conveyor (2) is shown in Figure 5, its tail is flexibly connected to the end of the excavation equipment (1) and is located at a relatively fixed position under the head of the scraper conveyor, and advances and retreats with the excavation equipment (1); The head of the straddling reloading conveyor (2) is lapped above the feed port (76) of the tailing coal bunker (54), and the 5m distance can be lapped along the feed guide rail (55) by means of the supporting wheel set (21). Under the ascending section of the straddle transfer conveyor (2) transfer frame (18), there are short supporting rollers (19) and high supporting rollers (20) as the main rolling support components, and the turning points of the transfer frame (18) are arranged The telescopic straddle section support (27) is made up of many groups steamboat (23), slide shoe (24), pull bar (25), bracing frame (26) etc., provides support when the straddle section is suspended. One end of the straddle section support (27) is fixed on the transfer frame (18) turning point, the other end is fixed on the tail compartment (53), and the steamboat (23) on it is in the transfer frame (18) frame chute (22 ) rolls, its sliding boots (24) land and slide. The tie rod (25) forms a parallelogram structure, so that the operation of the straddle section support (27) will automatically expand as the distance between the tunneling equipment (1) and the self-moving coal bunker increases to realize real-time support for the straddle section; otherwise, As the distance between the self-moving coal bunker and the tunneling equipment (1) shrinks, the straddle section support (27) is automatically retracted.

The self-extending machine tail (5) of the telescopic belt conveyor is a part of the telescopic belt conveyor and the equipment car (3) and the horizontal coal bunker (4) are in a line, and the discharge end of the horizontal coal bunker (4) is The head section (70) of the scraper conveyor is lapped on the tail frame (80) guide rail (81) of the self-extending tail (5) of the telescopic belt conveyor, and the lap distance reaches more than 5m. As shown in Figure 2, there is support wheel group (83) support and move from the extension tail (5) below, on the tail frame (80) with fixed card (85) is fixed with two long-stroke pulling oil cylinders ( 84), the other end is fixed on the lower part of the machine head compartment (69), under the action of the pulling oil cylinder (84), the self-extending machine tail (5) supported by the supporting wheel set (83) moves back and forth to drive the pulling and stretching belt conveyor Machine extension, self-extending tail (5) longest pulling distance 5m; The self-extending idler frame (82) arranged below the self-extending tail (5) as shown in Figure 3, consists of supporting roller group (83), The telescopic frame (14) and the set wheels (10) of the idler stand are matched at intervals. During the extension process, the rolling wheels and the sliding shoes (15) slide together to increase passability and stability. The upper idler rollers (12) and The lower idler roller (13) continues to support the running of the tape during the unfolding process; the driving wheel set (9) and the driver are used by maintenance personnel to operate and drive the self-extending roller frame (82) during the process of reinstalling the intermediate frame on the telescopic belt conveyor retract.

The basic unit telescopic frame (14) of self-extending idler stand (82) is by upper idler roller (12), lower idler roller (13) and crosspiece, upright shelf, end slip shoe (15) and the center are fixed on upright shelf or The diagonal tie rod group (11) of the crosspiece constitutes, and every 7 groups of telescopic frames (14) are equipped with 1 group of idler frame group wheels (10) to become a telescopic frame wheel group (16) that can expand a distance of 6.2m and fold back 0.93m, Such 10 groups are combined into a telescopic frame group that can be deployed for 50m. The supporting roller group (83) is connected with the first telescopic frame (14) by a connecting chain (86), and the subsequent telescopic frame (14) is successively hinged from the end to the end by the diagonal tie rod group (11) to form a plurality of parallelogram structures. The idler frame wheel (10) is connected with the drive wheel set (9) and the driver and is fixed on the fixed intermediate frame of the telescopic belt conveyor. The driver is equipped with a gear box and is connected with the drive wheel set (9) by inspection and maintenance. Personnel realize driving with tools such as crank handles or coal electric drills. Diagonal tie rod group (11) is fixed on the form stability of upright shelf outside better, and the form that is fixed in crosspiece is suitable for shorter telescopic frame (14) as shown in Figure 4. The telescopic frame (14) refers to the principle and structure of the telescopic door. Due to the complex condition of the inner floor of the roadway, the diagonal tie rod group (11) is fixed on the outer side of the stand, and the roller frame (10) and bottom sliding shoe (15) are used to assemble the wheels (10). At the same time, the landing method and the use of the inherent contact characteristics of the roller and the belt increase the running straightness, passability and reliability of the self-extending roller frame (82), and at the same time, the roadway floor after the coal bunker floor (57) passes is relatively flat It is also conducive to its operation.

The supporting system behind the self-moving coal bunker coordinates every 50m operation cycle, every 5m operation cycle, and every 1m operation cycle, and the realization method of mutual coordination of each equipment operation is as follows:

The 1m operation cycle is based on the excavation project with 1m as the basic unit of management for excavation and support. It is based on the realization of the basic functions of the horizontal coal bunker (4), ensuring that excavation, support, extension of the telescopic belt conveyor, etc. Continuous and complete. The working state of the horizontal coal bunker (4) is divided into two types: operation as a conveyor and operation of coal storage equipment. When operating as a coal storage equipment, the horizontal coal bunker (4) does not move, but the excavation equipment (1), straddle reloading conveyor (2) and the self-extending machine tail (5) of the telescopic belt conveyor can be in respective operating rhythms. Therefore, when the tunneling operation of the working face is running normally, the 1m operation cycle provides an opportunity for the extension of the tail of the telescopic belt conveyor after the self-extending tail (5) of the tail (5) is no-loaded during the coal storage operation stage of the horizontal coal bunker (4); When the excavation operation of the working face is not in normal operation, that is, when the equipment after the horizontal coal bunker (4) is shut down unplanned, the 1m operation cycle is the excavation equipment (1), straddling and reloading conveyor during the coal storage operation stage of the horizontal coal bunker (4). (2) and the equipment car (3) complete the stage operations respectively, especially the completion of the excavation operation and the support operation stage, which reduces the half-drawn sub-project, and provides technical guarantee for the safety of the working face and the continuity of the operation.

The 5m operation cycle is based on the performance of the existing tunneling equipment (1), support equipment, and horizontal coal bunker (4), that is, the "overlap moving distance of 0-5m" and the "no-load "The operating procedure set is the main part of the routine operation using the working characteristics of the self-moving coal bunker. The focus is to complete the safe extension and continuous operation of the self-extending tail (5) without stopping the tunneling operation. The "horizontal coal bunker (4) storage operation" embedded in the 1m operation cycle in the 5m operation cycle is the key to realize the smooth connection between the current 5m operation cycle and the next 5m operation cycle, as follows:

Initial state: the excavation equipment (1) is in preparation for excavation, the unloading end of the straddle transfer conveyor (2) is at the 1.5m overlap of the feed guide rail (55), and the equipment cart (3) is in preparation for pulling the horizontal coal bunker (4 ) state, the horizontal coal bunker (4) is in the running state of the conveyor, the self-extending machine tail (5) is at the 5m overlap of the head section (70) of the scraper conveyor, and the pulling cylinder (84) is fully contracted to 0m ;

The excavation equipment (1) continues to excavate 0-4m: the straddle transfer conveyor (2) runs and advances with the excavation equipment (1), the discharge end slides back and forth near the 1.5m overlap of the feed guide rail (55), and the horizontal coal bunker (4) Running in the conveyor state, the self-extending machine tail (5) is in the scraper conveyor head section (70) overlapping 5-0m, and the equipment vehicle (3) moves the horizontal coal bunker (4) following the excavation speed After advancing from 0 to 4m, speed up and move to 5m. Synchronously, the pulling oil cylinder (84) is in an extended state from 0 to 4 to 5m and the displacement and operating rhythm are matched with the pulling of the coal bunker traction cylinder (43);

The excavation equipment (1) continues to excavate for 4-4.5m and inserts 1m in the operation cycle: the straddle reloading conveyor (2) runs and follows the excavation equipment (1), and the unloading end slides at the 1m overlap of the feed guide rail (55) , the equipment trolley (3) no longer follows the excavation equipment (1) to advance and pull the horizontal coal bunker (4), the horizontal coal bunker (4) is in the operation state of switching the storage equipment by the operation of the conveyor, and the self-extending machine tail (5) The head section (70) of the scraper conveyor is overlapped by 0m, the pulling cylinder (84) is extended by 5m, and the self-extending idler frame (82) is not deployed, and the telescopic belt conveyor is gradually running dry;

The excavation equipment (1) continues to excavate to 4.5-5m: the straddle reloading conveyor (2) runs and follows the excavation equipment (1), the discharge end is near the overlapping end of the feeding guide rail (55) at 0.5-0m, and the straddle The riding section support (27) is fully unfolded, the equipment trolley (3) and the horizontal coal bunker (4) move to a static state, the horizontal coal bunker (4) is in the operation of the storage equipment and is gradually full, after being pulled from the extension tail (5) In the state where the head section (70) of the scraper conveyor is overlapped by 0-5m, the pulling cylinder (84) shrinks from 5-0m, and the self-extending idler frame (82) gradually expands by 0-5m, the telescopic belt conveyor Run dry and extend 0~5m;

The excavation equipment (1) continues to excavate and enters a new cycle: the straddle reloading conveyor (2) runs and follows the excavation equipment (1), and the discharge end is at the horizontal coal bunker (4) and the feed guide rail (55) overlaps 0～ Sliding around 1m, the equipment trolley (3) followed the excavation equipment (1) again and moved the horizontal coal bunker (4), the horizontal coal bunker (4) resumed the operation of the conveyor and unloaded, and the self-extending machine tail (5) overlapped 5m place stops moving, pulls and moves oil cylinder (84) and shrinks to 0m, and telescopic belt conveyor load operation.

The 50m operation cycle is the routine cycle of production, maintenance and overhaul around the excavation face, which is determined when the storage belt length of the telescopic belt conveyor is 100m, that is, the extension of 50m is satisfied. When the continuously operating face equipment completes several 5m operating cycles, when the tape storage bin is replaced with a new tape, the scheduled operation target of 5m×10 is completed, and the excavation face will stop excavation and enter according to the plan. In the maintenance phase, the wind, water, electricity, communication, transportation and other links are perfected to prepare for the start of the next 50m operation cycle. In this link, in addition to the overhaul and storage link of the telescopic belt conveyor, the telescopic frame group (82) needs to be retracted to complete the work of filling intermediate frames such as idler rollers, H frames, and longitudinal beams. not involved.

Excavation equipment (1) unloading machine: during the 5m operation cycle, the straddle reloading conveyor (2) always runs and follows the advancement of the excavation equipment (1), and the discharge end is at the level of the coal bunker (4). Sliding near 0m or 1.5m, in the maintenance and overhaul stage of the 50m operation cycle, when the excavation equipment (1) needs to be retracted, the straddle transfer conveyor (2) can follow the excavation equipment (1) to retreat, so that the discharge end It is near the 5m overlap of the feed guide rail (55) of the horizontal coal bunker (4), which is convenient for the maintenance of the excavation equipment (1) cutting mechanism and the like.

Beneficial effect

Compared with the aforementioned prior art methods, equipment and systems, the patent of the present invention has the following beneficial effects:

Compared with the system described in "Supporting after Rapid Excavation", the supporting system after the self-moving coal bunker has no clear crushing equipment. The probability of large pieces is very small, and the second reason is that several horizontal spiral blades (62) below the feed inlet (76) of the horizontal coal bunker (4) will break large pieces of material; the 5m operation cycle and the nested 1m operation The cycle can basically realize 50m continuous excavation operation, which greatly shortens the intermittent transportation time, reduces the auxiliary operation time such as pulling and moving the tail of the telescopic belt conveyor, increases the footage of a single operation cycle, and improves the efficiency of roadway excavation. More improvements will be made.

Compared with the follow-up coal transportation system of the excavation working face introduced in "Development of the Horizontal Mechanical Coal Bunker at the Excavation Working Face", the supporting system after the self-moving coal bunker is arranged behind the excavation equipment (1), and more emphasis is placed on the solution of the excavation operation and the management of the working face The problem.

Compared with the high-efficiency and rapid excavation complete equipment system introduced in "Research Status and Development Trends of Coal Mine Excavation Technology", which is composed of an integrated machine for digging and bolting, a bolt loader, a straddle-type rock bolter, and a flexible continuous transportation system, due to the Equipment (1) The excavating and anchoring integrated machine with priority configuration has the functions of excavation and all bolt support, which reduces the number of equipment in the whole system, and the total length of the complete set of equipment is less than 50m, and the supporting equipment is arranged on the side of the roadway, which is more It is convenient for the management of the excavation face and the realization of mechanization and automation.

Compared with the telescopic belt conveyor introduced in the entry "Extensible Belt Conveyor" in Baidu Encyclopedia, the self-extending tail (5 ) has improved the degree of mechanization, automation and continuous operation of the extension of the telescopic belt conveyor, and laid a technical foundation for realizing the 50m operation cycle.

Description of drawings

Figure 1 is the top view of the supporting system after the self-moving coal bunker;

Figure 2 is a schematic diagram of the self-extending tail of the telescopic belt conveyor;

Figure 3 Retraction of self-extending roller frame

Figure 4 Expansion diagram of the horizontal and inclined tie rod group of the roller frame group

Figure 5 is a schematic diagram of a straddling reloading conveyor;

Fig. 6 schematic diagram of equipment vehicle 1;

Fig. 7 schematic diagram of equipment car 2;

Figure 8 Schematic diagram of horizontal coal bunker (69 hidden items)

As shown in the figure, the list of reference signs is as follows:

(1), excavation equipment, (2), straddle reloading conveyor, (3), equipment vehicle, (4), horizontal coal bunker, (5), self-extending machine tail, (6), excavation and protection vehicle, ( 7), bolt car, (8), dust removal fan, (9), driving wheel group, (10), idler roller frame group wheel, (11), diagonal tie rod group, (12), upper idler roller, (13 ), lower roller, (14), telescopic frame, (15), bottom shoe, (16), telescopic frame wheel set, (18), reloading frame, (19), short supporting wheel set, (20) , high supporting wheel group, (21), wheel group, (22), chute, (23), small wheel, (24), slipper shoe, (25), pull rod, (26), support frame, (27) , straddle section bracket, (30), equipment frame, (31), pump group, (32), oil tank, (33), valve group, (34), electric control box, (35), controller, ( 36), straight air cylinder, (37), folding air cylinder, (38), suspension rail, (39), top support oil cylinder, (40), pulley block, (41), falling wheel block, (42), extension line cable, (43), coal bunker traction cylinder, (44), floor traction cylinder, (45), ground support cylinder, (46), compressed air duct, (47), cable rack, (48), exhaust wind Tube, (49), rolling cable device, (50), rolling water pipe device, (53), tail compartment, (54), tailing coal bunker, (55), feeding guide rail, (56), three-ring chain, (57), coal bunker bottom plate, (58), wheel pair, (59), circular link chain, (60), hinged shaft, (62), horizontal spiral blade, (63), front coal bunker, (64), Vertical helical blade, (65), closing warehouse cover, (66), closing warehouse shaft, (67), steel rail, (68), scraper conveyor, (69), nose compartment (hidden housing), (70 ), scraper conveyor head section, (71), support wheel, (72), lift support wheel, (73), lift cylinder, (74), beam, (75), feed cabin body, (76) , feed inlet, (77), coal bunker cabin, (80), tail frame, (81), guide rail, (82), self-extending idler frame, (83), supporting wheel group, (84) , pulling oil cylinder, (85), fixed card, (86), connecting chain,

Detailed ways

As shown in Figure 1, the supporting system of the coal roadway quick excavation and self-moving coal bunker designed by the present invention, the preferentially configured excavation equipment (4) is the patent No. ZL 2019 1 0186436.7 "a coal mine excavation and anchor protection integrated machine and parallel operation method" integrated machine for digging and anchoring. The machine is composed of two parts, the excavator and the bolter, with a total length of about 13m. According to the overall goal of coal roadway excavation of 3000m/month, the rated daily footage is 100m. The cutting advance is 3mm/s, and the bolter car is equipped with all the bolters required for cutting the section, and completes all the bolting operations in sequence, which belongs to the type of steady-speed advancement and continuous operation.

The combination of the horizontal coal bunker (4) and the equipment cart (3) constitutes the core of the self-moving coal bunker. The scraper conveyor (68) of the horizontal coal bunker (4) has a groove width of 1000mm, a tail wheel diameter of 300mm, and a scraper conveyor head section (70) of 6000mm in length, arranged at the bottom of each cabin, along the scraper conveyor (68 ) below is fixed with a wheel set (58) with a spacing of 1500mm and a diameter of 400mm rolling on the rail (76); the cabin volume is about 35m ³ wherein each section of the coal bunker cabin (77) is 1.8m high x 1.9m wide x 5m long 17.1m ³ ; guide coal flow horizontal spiral blade (62) diameter 400mm, pitch 300mm, vertical spiral blade (64) diameter 800mm, pitch 400mm; closing warehouse cover (65) radius 500mm, length 1900mm; feed cabin body ( The feed inlet (76) of 75) is 1300mm wide × 6000mm long, the feed guide rail (55) is 6000mm long, and the distance between the two guide rails is 1000mm wide. (2) Overlap. Coal bunker bottom plate (57) is 1900mm wide, and its edges are prow-shaped for easy sliding. It is suitable for the length of the front coal bunker (63) bottom plate of 8500mm, the length of the tail coal bunker (54) bottom plate of 6000mm, and the single section of coal The length 5000mm of storehouse cabin body (77) base plate, two steel rails (76) are welded on the coal bunker base plate (57) along the lengthwise center, spacing 1200mm and diameter 400mm wheelsets (58) are adapted. Such design makes the rolling between each cabin body and the bottom plate, although the coal bunker bottom plate (57) and the roadway bottom plate are sliding, but due to the rolling relationship of the former, the movement of the horizontal coal bunker (4) is changed from sliding to rolling, that is, reducing The pulling force is reduced and the ground specific pressure is reduced.

The scraper conveyor (68) of the horizontal coal bunker (4) adopts variable speed operation, the chain speed is 0.93m/s in the normal operation stage, and the chain speed is 0.01m/s slow operation in the warehouse closing stage; , the front coal bunker (63) and the tail coal bunker (54) are connected by a hinge shaft (60), which can have a deflection of 5°; the two coal bunker bottom plates (57) are connected by a circular link chain (59) There is a certain margin of activity.

The overall dimensions of the equipment truck (3) are about 2500mm long x 1500mm wide x 3700mm high, and the traveling mechanism is in the form of a crawler track 2000mm long x 1500mm wide x 500mm high, consisting of a pump set (31), a valve set (33) and a fuel tank (32) The pumping station provides driving power, provides traction power for the coal bunker traction cylinder (43) with a diameter of 100mm×length 1000mm and the floor traction cylinder (44), and provides power for the roof support cylinder (39) with a diameter of 200mm×length 400mm and the ground support cylinder (45). Anchor power, also be the oil cylinder that closes storehouse cover (65) in the horizontal coal bunker (4) and closes storehouse shaft (66) as the center rotation and the pulling oil cylinder ( 84) and other hydraulic components provide power. The air, water, electricity, and information system cache composed of a folding air cylinder (37), a straight air cylinder (36) and a cable storage mechanism, etc. The folding air cylinder (37) and the straight air cylinder with a diameter of 600mm are used for air supply and dust removal. Barrel (36).

The straddle reloading conveyor (2) is 1000mm wide, 2000mm high, 800mm wide, and about 10m long. The inclined section has an inclination angle of 30° and a length of 3600mm. The straddle section is 6500mm long, supported by support wheels (21) 200 wheels , along the feed guide rail (55) maximum moving distance of 5m. The metal rollers with a diameter of 600mm are the main mobile supporting parts arranged in the short support roller group (19) and the high support roller group (20) arranged below the ascent of the straddle transfer conveyor (2) transfer frame (18). The telescopic straddle section support (27) height 1700mm arranged at the turning point of the transfer frame (18) is 1700mm in height, and the upper small wheel (23) with a diameter of 150mm rolls in the frame chute (22) of the transfer frame (18), and its sliding shoe (24) is the high U-shaped steel of 1040mm long * 100mm wide * 60mm, plane lands and slides; The upright shelf of bracing frame (26), crosspiece and the slide shoe (24) that is fixed on the bottom all adopt U-shaped steel, steamboat (23 ) is fixed on the top of the stand. Fix the central connection point of two pull bars (25) at the midpoint of the outer plane of the stand, and each pull bar (25) of 1900mm long * 30mm wide * 10mm thick connects end to end to form a parallelogram, expands, and retracts freely. As the distance between the excavation equipment (1) and the self-moving coal bunker increases, under the pulling of the turning point of the transfer frame (18) and the three-ring chain (56) of the tail cabin (53), the straddle section support (27 ) automatically opens the real-time support, the distance between each support frame (26) increases, and the pull rod (25) changes from vertical to flat; 27) Automatic closure.

The self-extending tail (5) is a part of the telescopic belt conveyor, and the head section (70) of the scraper conveyor is lapped on the tail frame (80) of the self-extending tail (5), and the lap distance is greater than 5m. The tail frame (80) of self-extension tail (5) is about 1100mm apart from base plate height, and the guide rail (81) 5500mm long * 110mm wide * 50mm high of the guide rail (81) arranged on the top, rolls for supporting wheel (71); 80) The supporting wheel group (9) with a fixed array diameter of 400mm below is supported and rolled, and two pulling cylinders (84) with a stroke of 200mm×5500mm in diameter are fixed on it with a fixed card (85), and the other end is fixed on the head compartment ( 69) lower part, the longest pulling distance of 5m for the self-extending tail (5).

The telescopic frame (14) of the basic unit of the self-extending idler stand (82) consists of an upper idler (12) with a diameter of 90mm for tape operation, a lower idler (13) and a frame of 900mm long × 90mm wide × 1000mm high, 900mm Long × 90mm wide × 30mm high bottom shoe (15) slides on the ground, and the telescopic frame (14) drives the upper roller (12) and the lower roller (13) to move and continuously support the belt to run. Every 7 groups of telescopic frames (14) are equipped with 1 group of idler frame group wheels (10) to become the telescopic frame wheel group (16) that can expand distance 6.2m, folded back 0.93m, and such 10 groups are combined into a flexible frame that can expand 50m Telescopic frame set. Diagonal tie rod group (11) is made up of 900mm long * 40mm wide * 20mm thick diagonal stay rods, and the form stability fixed on the outside of the stand is better conducive to the passability and reliability of the self-extending roller frame (82). The driving wheel group (9) is equipped with a gear transmission mounted on the driving wheel in the high shrinkage power box of 800 * 300 * 500 wide.

Horizontal coal bunker (4) movement: first lock the coal bunker traction cylinder (43) and keep it still, so that the front coal bunker (63) and tail coal bunker (54) are fixed first, and the bottom plate of the coal bunker is pulled by the floor traction cylinder (44) (57) Move a distance of 0.5m; when it is in place, lock the bottom plate traction cylinder (44) to keep it still, so that the coal bunker floor (57) is fixed, and the coal bunker traction cylinder (43) pulls and moves the tail coal bunker (54) and the front coal bunker (63) Move 0.5m distance. At the same time, the pulling oil cylinder (84) also extends 0.5m and is synchronized with the displacement of the coal bunker pulling cylinder (43) in real time, completing the horizontal coal bunker (4) and moving 0.5m; Pulling and moving oil cylinders (84) are all locked to ensure that the overall position of the horizontal coal bunker (4) is fixed and the safe operation of the self-extending tail (5), and then the next movement rhythm is launched.

1m operation cycle: the warehouse closing cover (65) is opened, the scraper conveyor (68) runs at a constant speed, and the horizontal coal bunker (4) operates as a conveyor; the warehouse closing cover (65) is closed, and the scraper conveyor (68 ) running at a slow speed, and the horizontal coal bunker (4) operates as coal storage equipment. When operating as coal storage equipment, neither the horizontal coal bunker (4) nor the equipment vehicle (3) moves or moves relative to each other; Tail (5) is in respective running rhythm.

5m operation cycle: There are several stages of initial state, 0-4m excavation, 4-4.5m excavation, 4.5-5m excavation and the start of a new cycle. List of states after setting critical running nodes to the following names:

The position where the unloading end of the straddling reloading conveyor (2) overlaps the feed guide rail (55) is set as "lapping the feed port";

The equipment vehicle (3) pulls the state of the horizontal coal bunker (4) and sets it as "equipment (3) state";

The working state of the horizontal coal bunker (4) is set as "coal bunker (4) state";

The self-extending machine tail (5) laps the position of the head section (70) of the scraper conveyor, which is set as "lapping of the discharge port";

The working state of the pulling oil cylinder (84) is set as "oil cylinder (84)"

details as follows:

Inlet overlap Device (3) Status Coal Bunker (4) Status Outlet Lap Cylinder(84) initial state Lap 1.5m ready to move Conveyor running Lap 5m shrink to 0m 0～4m excavation Lap 1.5m 0～4～5m Conveyor running Take 5～0m 0～4～5m 4～4.5m excavation Lap 1m stop pulling switch running state lap 0m Extend to 5m 4.5～5m excavation Take 0.5～0m moving still Operation of coal storage equipment Take 0~5m Shrink 5～0m new cycle begins Lap 0～1m Open pull Conveyor running Lap 5m shrink to 0m

The 50m operation cycle means that when the continuously operating working face equipment completes several 5m operation cycles and reaches the storage bin to replace the new tape, the excavation work face will stop excavation according to the schedule and enter the maintenance stage. , electricity, letter, transportation and other links are perfect, ready for the start of the next 50m operation cycle.

Excavation equipment (1) unloading machine: during the 5m operation cycle, the straddle reloading conveyor (2) always runs and follows the advancement of the excavation equipment (1), and the discharge end is at the level of the coal bunker (4). After sliding at 0m or 1.5m, in the maintenance and overhaul stage of the 50m operation cycle, when the excavation equipment (1) needs to be retracted, the straddle transfer conveyor (2) can follow the excavation equipment (1) to retreat, so that the discharge end is in the The feed guide rail (55) of the horizontal coal bunker (4) overlaps around 5m, which is convenient for the maintenance of the cutting mechanism of the excavation equipment (1).

Claims (8)

1. "A self-moving coal bunker for rapid excavation of coal roadway and its supporting system and realization method" belongs to the field of complete equipment and technical methods for coal mine roadway excavation. Behind the excavation equipment (1), the buffering of coal flow and continuous transportation and the automatic length adaptation of pipelines such as ventilation, power supply, water supply, and communication are realized with the equipment, and the tail of the telescopic belt conveyor is followed and extended in real time. The operation management of the supporting plan after 1m is beneficial to the continuity of the excavation equipment (1) in every 5m operation cycle; the realization method of the self-moving coal bunker after supporting and the operation cycle of every 50m, every 5m, and every 1m are explained Collaborative implementation methods; Coal roadway fast excavation self-moving coal bunker supporting system and implementation method include horizontal coal bunker (4), equipment vehicle (3), straddle reloading conveyor (2) and telescopic belt conveyor self-extending machine tail (5), etc. , the horizontal coal bunker (4) and the equipment cart (3) are combined to form a self-moving coal bunker, The horizontal coal bunker (4) is made up of scraper conveyor (68), front coal bunker (63), tail coal bunker (54), coal bunker floor (57), etc. Storehouse cover (65), coal bunker cabin body (77), longitudinal screw blade (64) and wheel pair (58) constitute; Tail coal bunker (54) is made up of engine tail cabin (53), feed cabin body (75), Horizontal helical blades (62) and wheel sets (58) etc.; the coal bunker floor (57) is composed of steel rails (76) and the floor, which jointly complete the transportation, storage of materials and equipment overlap, The equipment vehicle (3) is composed of an equipment frame (30), an electric control box (34), a controller (35), a pump group (31), a valve group (33), a fuel tank (32), Coal bunker traction cylinder (43), floor traction cylinder (44), roof support cylinder (39), floor support cylinder (45), folding air cylinder (37), straight air cylinder (36) and cable storage mechanism, etc. Provide power for self-walking, horizontal coal bunker (4) movement and internal hydraulic and electrical equipment, The straddling reloading conveyor (2) is composed of a reloading frame (18), a short supporting wheel group (19), a high supporting wheel group (20), a wheel group (21), a chute (22), a steamboat (23), Sliding shoe (24), pull rod (25), support frame (26), straddle section bracket (27), etc., follow the advance and retreat of the excavation equipment (1) in real time to realize material transfer, The self-extending tail (5) of the telescopic belt conveyor is fixed by the tail frame (80), the guide rail (81), the self-extending idler frame (82), the supporting wheel group (83), and the pulling cylinder (84). (85), connecting chain (86), upper idler roller (12), lower idler roller (13), telescopic frame (14), bottom slide shoe (15), diagonal tie rod group (11), idler frame group wheel ( 10), drive wheel group (9), telescopic frame wheel group (16) etc. are formed, realize the normal operation of the conveyor in the distance of 5m * 10 that the tail of the telescopic belt conveyor extends independently. 2. According to claim 1, the fast digging and self-moving coal bunker of the coal roadway is matched, and its equipment layout overlap is characterized in that: the tail of the straddling reloading conveyor (2) is connected to the excavation equipment (1) scraper conveyor The relative fixed position below the machine head and the feed port (76) are in the middle of the roadway and the tail of the excavation equipment (1) scraper conveyor is on a line; the self-moving coal bunker follows the excavation equipment (1) and is in the roadway One side is on the same line as the retractable belt conveyor, and the distance between the equipment vehicle (3) and the horizontal coal bunker (4) is relatively fixed; the head section (70) of the scraper conveyor at the discharge end of the self-moving coal bunker It is on the same line with the tail of the telescopic belt conveyor, that is, the self-extending tail (5), so that the rear supporting equipment is concentrated on one side of the roadway, and the length is greatly shortened, so that the materials required for excavation can be quickly approached and transported to the excavation equipment (1 ) provides convenience, The head of the straddling reloading conveyor (2) moves 0-5m along the feeding guide rail (55) by means of the support wheel set (21); At the turning point of the transfer frame (18), the other end is fixed on the tail compartment (53), and its small wheel (23) rolls in the frame chute (22) of the transfer frame (18), and the sliding shoe (24) slides on the ground. , as the distance between the tunneling equipment (1) and the self-moving coal bunker increases, the straddle section support (27) is launched to realize real-time support for the straddle section; on the contrary, as the self-moving coal bunker moves and the tunneling equipment (1 ), the distance between dwindles, the straddle section support (27) retracts, The support wheel (71) arranged under the head section (70) of the scraper conveyor rolls on the guide rail (81) arranged on the tail frame (80) and moves a distance of 0-5m, and the fixed beam (74) below is equipped with The lifting cylinder (73) controls the dynamic constant force of the lifting support wheel (72) rolling on its lower side, so that their support to the bottom plate is balanced and slightly smaller than that of the support wheel (71). The two complement each other to realize the scraper. Full span support for the conveyor nose section (70). 3. According to claim 1, the fast digging and self-moving coal bunker of the coal roadway is matched after the coal bunker, and its horizontal coal bunker (4) is characterized in that: the scraper conveyor (68) runs through the bottom of the cabin body to change speed, and the tail coal bunker ( 54) The feeding port (76) is arranged with a feeding guide rail (55) for the head section and the straddling section of the straddling reloading conveyor (2) to overlap and walk; the horizontal spiral blade ( 62) It has the function of guiding the material into the bin and stirring and breaking the bulk material. The vertical spiral blade (64) in the coal bunker cabin (77) pushes the upper material in the bunker forward to increase the bunkering rate; the front coal bunker ( 63) Arrange the relevant bunker cover (65) to control the opening and closing of the coal bunker, and the discharge end, that is, the head section (70) of the scraper conveyor is overlapped by 5m on the tail frame (80) of the self-extending tail (5) The above distance; the coal bunker bottom plate (57) is composed of steel rails (67) and the bottom plate, and forms a rolling movement with the array of wheel pairs (58) distributed at the bottom of the scraper conveyor (68), which reduces the specific pressure on the ground and also reduces the movement. force; in order to adapt to the local ups and downs due to the trend of the bottom plate, the front coal bunker (63) and the tail coal bunker (54) are connected with a hinge shaft (60), and there is a 5° deflection between the two coal bunker bottom plates (57). Ring chain (59) is connected, has certain activity margin mutually, Shown horizontal coal bunker (4) is the shortest structure, can increase coal bunker cabin body (77) and coal bunker bottom plate (57) to reach required storage volume; 1. When the scraper conveyor (68) runs at a normal speed, the horizontal coal bunker (4) only operates as a conveyor; when the closing cover (65) is closed and the scraper conveyor (68) runs at a slow speed, the horizontal coal bunker (4 ) as storage equipment, at this time the self-moving coal bunker does not move, allowing the excavation equipment (1), the straddle reloading conveyor (2) and the self-extending tail of the telescopic belt conveyor (5) to be in their respective operating rhythms. 4. According to claim 1, the self-moving coal bunker of the coal roadway is quickly excavated and equipped, and its coal bunker moves are characterized in that: according to the moving program of the self-moving coal bunker, it follows the excavation equipment (1) to walk; the supporting oil cylinder (39 ), the ground support oil cylinder (45) plays the role of stabilizing the equipment car (3), and when the equipment car (3) pulls the horizontal coal bunker (4), it supports the top and the bottom plate respectively, so that the pulling force can be supplied stably. Pull the coal bunker bottom plate (57) to move a certain distance by the bottom plate traction cylinder (44), and then move the tail coal bunker (54) and the front coal bunker (63) to move the same distance by the coal bunker traction cylinder (43) to form a step movement; When the bottom plate traction cylinder (44) is pulled, the coal bunker traction cylinder (43) remains stationary, when the coal bunker traction cylinder (43) is pulled, the bottom plate traction cylinder (44) remains stationary, and the respective displacements are zero when both are stationary 1. Ensure that the absolute distance from the horizontal coal bunker (4) guarantees that it will not slide by itself; the action of the coal bunker traction cylinder (43) is closely related to the pulling cylinder (84), and the coal bunker traction cylinder (43) pulls the horizontal coal bunker (4) time, pulling oil cylinder (84) must extend and both displacements must be synchronized. 5. According to claim 1, the fast digging and self-moving coal bunker of the coal roadway is matched after the self-moving coal bunker, and the self-adaptive feature of the length of its wind, water, electricity and letter pipelines is: the fixed air pressure duct (46) on the top of the equipment cart (3) ) and the negative pressure exhaust air duct (48) facing the excavation equipment (1) with a folding air duct (37) at one end and a straight air duct (36) at the other end, when the excavation equipment (1) and the equipment vehicle (3) are separated from each other When the time is up, the folding air duct is gradually unfolded to ensure normal air supply and dust removal; the cable storage mechanism stores power cables, signal cables and water pipes, etc. The cable frame (47), the coiled cable device (49), and the coiled water pipe device (50) can provide a pipeline buffer greater than 5m between the excavation equipment (1) and the equipment vehicle (3). 6. According to claim 1, the fast digging and self-moving coal bunker of the coal roadway is matched after the coal bunker, and the extension of the tail of the telescopic belt conveyor is characterized in that: one end is fixed at the lower part of the head bin (69), and the other end is fixed at the tail of the machine. Under the action of two long-stroke pulling oil cylinders (84) on the frame (80), the self-extending tail (5) supported by the support wheel set (83) moves back and forth to drive the extension of the pulling telescopic belt conveyor, and the longest The pulling distance is 5m; the self-extending idler frame (82) arranged below the self-extending machine tail (5) is composed of supporting rollers (83), telescopic frame (14) and idler assembly wheels (10) at intervals, and the extension During the process, the rolling wheel and the sliding shoe (15) slide together to increase the passability and stability, and the upper idler roller (12) and the lower idler roller (13) on it continue to support the operation of the belt during the unfolding process; the driving wheel set ( 9) and the driver are used for maintenance personnel to operate and drive the self-extending roller frame (82) to retract when the telescopic belt conveyor is reinstalled with the intermediate frame. The telescopic frame (14) of the basic unit of the self-extending idler frame (82) is fixed on the column or the crosspiece by the upper idler (12), the lower idler (13) and the crosspiece, the vertical shelf, the bottom shoe (15) and the center. The diagonal tie rod group (11) of file constitutes, and every 7 groups of telescopic frames (14) are equipped with 1 group of idler frame group wheels (10) and become the telescopic frame wheel group (16) that can expand distance 6.2m, 0.93m after folding, like this 10 groups are combined into a telescopic frame group that can expand 50m; the support wheel group (83) is connected with the first telescopic frame (14) with a connecting chain (86), and the subsequent telescopic frame (14) is sequentially connected with a diagonal tie rod group ( 11) The head and tail are hinged to form a plurality of parallelogram structures connected, and the idler frame set wheel (10) at the tail end is connected with the drive wheel set (9) and the driver and fixed on the fixed intermediate frame of the telescopic belt conveyor; (11) have two kinds of forms that are fixed on the outside of the column and are fixed in the crosspiece, and are suitable for a shorter telescopic frame (14) in the crosspiece. 7. The implementation method according to claim 1, wherein the coordinated operation of a plurality of job cycles is characterized in that: The 1m operation cycle is based on the management basic unit of excavation engineering with 1m as the operation, surrounding the basic functions of the horizontal coal bunker (4), ensuring the continuity and completeness of the basic operation cycle of excavation, support, extension of the telescopic belt conveyor, etc.; therefore, When the tunneling operation of the working face is running normally and the horizontal coal bunker (4) is in the stage of material storage operation, it provides a necessary opportunity for the extension of the self-extending tail (5) of the telescopic belt conveyor after the tail is running without load. When the excavation operation is running normally but the transportation equipment after the horizontal coal bunker (4) is shut down unplanned, the storage operation stage of the horizontal coal bunker (4) is the excavation equipment (1), the straddle reloading conveyor (2) and the equipment vehicle (3 ) respectively continue to run to complete the stage operations, especially the excavation operations and support operations are basically completed, reducing unplanned downtime, The 5m operation cycle is the normal excavation of the working face, surrounding the performance of the existing excavation equipment (1), support equipment, and horizontal coal bunker (4), that is, "overlap movement distance 0-5m" and the safety of the tail of the telescopic belt conveyor. Extension, to achieve the safe extension and continuous operation of the self-extending tail (5) without stopping the excavation operation, and the "horizontal coal bunker (4) storage operation" with a 1m operation cycle embedded in each 5m operation cycle, It is the key to realize the smooth connection between the current 5m operation cycle and the next 5m operation cycle. The 50m operation cycle revolves around the normal cycle of production, maintenance and overhaul of the excavation working face, and is set based on the condition that the storage belt length of the telescopic belt conveyor is 100m and meets the extension of 50m; when the continuous operation of the working face equipment completes several 5m operation cycles , Reached the need to replace the new tape in the storage bin, that is, completed the scheduled operation target of 5m×10, the excavation face stopped excavation in a planned way and entered the maintenance stage, and the wind, water, electricity, letter, transportation and other The link is complete and ready for the next 50m operation cycle; in addition to supplementing the belt storage link, the telescopic belt conveyor also needs to retract the self-extending roller frame (82) with the help of the driving wheel set (9) to complete the supporting The operation of intermediate frames such as rollers, H frames and longitudinal beams, In the maintenance and overhaul stage of the 50m operation cycle, when the excavation equipment (1) needs to be retracted, the straddle reloading conveyor (2) will follow the excavation equipment (1) to retreat, so that the discharge end is at the level Coal bunker (4) feeds Guide rail (55) overlaps near 5m, is convenient to the maintenance such as excavation equipment (1) cutting mechanism. 8. The realization method according to claim 1, its 5m operation cycle operation is characterized in that: as follows: Initial state: the excavation equipment (1) is in preparation for excavation, the unloading end of the straddle transfer conveyor (2) is at the 1.5m overlap of the feed guide rail (55), and the equipment cart (3) is in preparation for pulling the horizontal coal bunker (4 ) position, the horizontal coal bunker (4) is in the running state of the conveyor, the self-extending tail (5) is at the 5m overlap of the head section (70) of the scraper conveyor, and the pulling cylinder (84) is retracted to 0m ; The excavation equipment (1) continues to excavate 0-4m: the straddle transfer conveyor (2) runs and follows, and the discharge end is near the 1.5m overlap of the feeding guide rail (55), and the equipment vehicle (3) moves along with the excavation speed The horizontal coal bunker (4) advances and moves 0 to 4m, and then accelerates to move to 5m. The horizontal coal bunker (4) is in the running state of the conveyor, extending from the tail (5) to the head section (70) of the scraper conveyor for overlapping At 5-0m, the pulling oil cylinder (84) is in a state of continuous extension from 0-4-5m, and the displacement and operation rhythm are matched with the pulling of the coal bunker pulling oil cylinder (43); The excavation equipment (1) continuously excavates 4 to 4.5m and embeds 1m in the operation cycle: the straddle reloading conveyor (2) runs and follows, and the discharge end is at the 1m overlap of the feeding guide rail (55), and the equipment vehicle (3) stops Advance and pull the horizontal coal bunker (4), the horizontal coal bunker (4) is in the operation state of the storage equipment switched by the conveyor operation, and the self-extending machine tail (5) is in the scraper conveyor head section (70) overlapping 0m 1. The pulling oil cylinder (84) is in the state of stretching out 5m and the self-extending idler frame (82) has not been implemented to expand, and the telescopic belt conveyor is gradually idling; The excavation equipment (1) continues to excavate to 4.5-5m.: the straddle transfer conveyor (2) runs and follows, and the discharge end is at the horizontal coal bunker (4). The support (27) is fully unfolded, the equipment trolley (3) and the horizontal coal bunker (4) move to a static state, the horizontal coal bunker (4) is in the operation of the storage equipment and is gradually full, and is in the scraping position after being pulled from the extension tail (5). The head section (70) of the plate conveyor is overlapped by 0-5m, the pulling cylinder (84) shrinks from 5-0m, and the self-extending idler frame (82) gradually expands by 0-5m, and the telescopic belt conveyor runs dry And extend 0~5m; The excavation equipment (1) continues to excavate: the straddle reloading conveyor (2) runs and follows, and the unloading end is at the horizontal coal bunker (4) The feed guide rail (55) slides at 0-1m overlap, and the equipment vehicle (3) re- Follow the excavation equipment (1) to move forward and pull the horizontal coal bunker (4), the horizontal coal bunker (4) resumes the operation of the conveyor and discharges the material, stops moving at the overlap of 5m from the extension tail (5), and pulls the oil cylinder (84 ) shrinks to 0m, and the telescopic belt conveyor runs under load.

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