Coal mine charging hole sealing and face protection integrated machine

Abstract

The application discloses a coal mine charging hole sealing face protection integrated machine, which comprises a pneumatic tracked vehicle, a charging machine, a stemming hole sealing machine, a four-bar linkage mechanism, a construction operation platform, a face protection net and a control system integrated on the pneumatic tracked vehicle; one side of the pneumatic tracked vehicle is provided with the charging machine, the other side of the pneumatic tracked vehicle is provided with the stemming hole sealing machine, the front end of the pneumatic tracked vehicle is provided with the four-bar linkage mechanism, and the rear end of the pneumatic tracked vehicle is provided with a standing platform. The charging machine, the stemming hole sealing machine, the construction operation platform and the face protection net are integrated on one tracked vehicle, and the four functions of charging, hole sealing, construction personnel operation platform and face protection are realized on one vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine equipment, in particular to a coal mine charging hole sealing and face protection integrated machine. BACKGROUND

[0002] The fully mechanized working face of coal mining in China uses coal cutting machine, hydraulic support, chain plate machine, belt conveyor and other mechanical equipment, which has completely realized mechanized operation. Some mines even use 5G technology to realize intelligent and unmanned mining operation. For soft rock roadway excavation, due to the softness of the rock (f<6), the use of fully mechanized tunneling machine also basically realizes full-face mechanized operation. However, for medium-hard rock roadway excavation, due to the hardness of the rock (f≥6), the use of fully mechanized tunneling machine has very low rock breaking efficiency and high cost. Currently, the traditional drilling and blasting method is still used for construction, which includes four main processes: breaking (rock), loading (waste rock), transporting and supporting. Among them, drilling, loading, transporting and supporting are basically realized by mechanized operation through hydraulic drilling vehicles and drilling and loading machines.

[0003] Currently, in the process of coal mine rock roadway blasting excavation, only the charging, hole sealing, face protection and construction platform erection are still using traditional manual operation, which requires many workers, long operation time and high labor intensity. Although the mechanized charging machine and hole sealing machine used for charging and hole sealing operation have been successfully tested, these two machines still need to be manually transported to the face, especially with the increase of coal mining depth and the increase of ground pressure, the geological conditions are more complex, and large-area spalling accidents are prone to occur. In order to ensure the safety of charging construction and prevent spalling accidents, it is required that the entire face must be fully covered with a 1m high plastic net. This requires not only the erection of a construction platform at the face, but also the face protection, i.e. manual anchor net operation, which itself has many safety hazards during the construction process. Moreover, the anchor rod and protective net used for face protection are not recyclable, and the cost of anchor net materials required for each round of blasting is as high as 500 yuan, which also affects the progress of roadway blasting excavation.

[0004] For face protection and construction platform, not only the safety of the operator during charging and hole sealing construction must be ensured, but also the convenience of connection is required. When the protective net is removed, the detonator foot wire and the entire detonation network must not be damaged, short-circuited or broken, and explosion accidents must not occur.

[0005] Therefore, a coal mine hard rock or medium-hard rock charging hole sealing and face protection integrated machine is invented, which integrates the charging machine, hole sealing machine, face protection and blasting operation construction platform into an integrated machine through a pneumatic tracked vehicle, and the power source cannot have fuel oil, electricity or other energy sources that can generate static electricity, sparks or harmful gases, so as to realize complete mechanization of coal mine hard rock or medium-hard rock roadway blasting excavation, achieve safety, reduce staff and increase efficiency, which also meets the development direction and inevitable requirement of realizing staff reduction or unmanned (intelligent) operation at the site of coal mine blasting excavation. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a coal mine charging hole sealing and face protection integrated machine.

[0007] The technical problem to be solved by the present application is solved by the following technical solution: a coal mine charging hole sealing and face protection integrated machine, comprising a pneumatic tracked vehicle, a charging machine, a stemming hole sealing machine, a four-bar linkage mechanism, a construction operation platform and its face protection net, and a control system, and being integrally arranged on the pneumatic tracked vehicle;

[0008] One side of the pneumatic tracked vehicle is provided with the charging machine, and the other side of the pneumatic tracked vehicle is provided with the stemming hole sealing machine.

[0009] The front end of the four-bar linkage mechanism is provided with the construction operation platform and the face protection net, the construction operation platform comprises a bottom plate, side plates arranged at both ends of the bottom plate through hinges respectively, an upper surface of the bottom plate is provided with a pair of fences, the fences are vertically arranged on the inner and outer sides of the bottom plate, a first mounting cylinder is arranged on the top outer wall of the fence on the outer side, a first limiting cylinder is arranged on the top outer wall of the fence on the inner side, a protection chain is arranged on the top of the fence, a limiting piece is arranged at the front end of the protection chain, a fixing frame is vertically arranged in the first mounting cylinder, the fixing frame is of U-shaped structure, and hooks are uniformly arranged on the outer wall of the fixing frame, mounting rings are arranged on the outer sides of the upper surfaces of the two side plates, and the mounting rings are arranged at equal intervals, a vertical rod is vertically arranged at the middle position of the inner side of the bottom plate, telescopic oil cylinders are arranged on the two side walls of the vertical rod respectively, and the telescopic ends of the telescopic oil cylinders are connected with the side plates respectively.

[0010] The face protection net is located directly in front of the construction operation platform, the face protection net is composed of a plurality of rubber pipes with steel wires inside, and the rubber pipes are distributed at equal intervals, and the two ends of the rubber pipes are fixed on the mounting rings respectively.

[0011] Further, the four-bar linkage mechanism is arranged at the left top end of the pneumatic tracked vehicle, a stand column is vertically arranged on the left side of the pneumatic tracked vehicle, the four-bar linkage mechanism is arranged on the top of the stand column, a supporting oil cylinder is arranged on the left side of the stand column below the four-bar linkage mechanism, the output end of the supporting oil cylinder is hingedly connected with the lower surface of the four-bar linkage mechanism, and the front end of the four-bar linkage mechanism is connected with the bottom plate through a mounting plate.

[0012] Further, the front end of the side plate is provided with a pair of second mounting barrels, a protective frame is detachably inserted into the second mounting barrel, a second limiting barrel is arranged on the side wall of the protective frame, the first limiting barrel corresponds to the second limiting barrel, and the first limiting barrel and the second limiting barrel are connected through a limiting piece.

[0013] Further, the bottom wall of the bottom plate is vertically provided with a support rod on the right side, and the support rod is provided with two support rods which are distributed at both ends of the bottom plate, and the side wall of the support rod is uniformly provided with a climbing rod.

[0014] Further, the rubber tube is respectively penetrated by the hook.

[0015] Further, the surface of the bottom plate is uniformly provided with a first through hole, and the surface of the side plate is uniformly provided with a second through hole.

[0016] Further, the outer wall of the hanging arm is provided with a limiting groove along the long side direction, a sliding block is slidingly arranged in the limiting groove, a fixing plate is arranged on the outer wall of the sliding block, and a sleeve is arranged on the outer wall of the fixing plate.

[0017] Further, limiting rods are vertically arranged on both sides of the connecting plate.

[0018] Compared with the prior art, the device integrates the charging machine, the stemming hole sealing machine, the construction operation platform and the face protection net on one crawler, and truly realizes the four functions of charging, hole sealing, construction operation platform and face protection on one vehicle. The construction operation platform in the device is automatically raised and lowered by the four connecting rod mechanisms in front of the crawler, and is always kept in a horizontal position during the raising process. When the construction operation platform is raised to more than 2 meters, the movable square tube below the four connecting rod mechanisms can ensure the safety of the construction workers by preventing the platform from suddenly falling due to the explosion of the hydraulic oil pipe. At the same time, the opening and closing of the two side plates of the construction operation platform are completed by the extension and retraction of the telescopic oil cylinder. When the construction platform is opened, the stability of the construction platform can be ensured. When the construction platform is closed, not only the occupied area is small, but also the movement is convenient. The face protection net uses a rubber pipe with a steel wire rope inside to ensure the strength of the protection net. During the charging and hole sealing construction process, the face protection net can block the injury caused by the slice of the working face. The face protection net is withdrawn together with the construction operation platform, and does not damage the detonator foot wire and the entire detonation network, thereby avoiding short circuit, open circuit and refusal to explode. At the same time, the face protection net has no dead angle, good protection effect, and can be repeatedly used, safe and reliable, and convenient to maintain and replace. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 The figure is a schematic diagram of the structure of the construction operation platform in the expanded state.

[0021] Figure 3 It is the right view of construction operation platform of the application;

[0022] Figure 4 It is the plan view of construction operation platform of the application;

[0023] Figure 5 It is the structural schematic view of side plate of the application;

[0024] Figure 6 It is the structural schematic view of four-bar linkage mechanism of the application;

[0025] Figure 7 It is the structural schematic view of sleeve of the application;

[0026] Figure 8 It is the design drawing of some rock roadway face blast hole of deep coal mine;

[0027] Marked number in figure: 10, pneumatic tracked vehicle; 11, control system; 12, charging machine; 13, mortar encapsulation machine; 14, standing platform; 20, base; 30, stand; 31, rotary table; 32, first hinged piece; 33, boom; 331, sleeve; 332, sliding block; 333, fixed plate; 334, limiting groove; 34, supporting oil cylinder; 35, movable square tube; 36, second hinged piece; 37, connecting rod; 38, mounting plate; 39, connecting plate; 391, limiting rod; 40, construction operation platform; 41, bottom plate; 411, first through hole; 42, fence; 43, first mounting cylinder; 44, fixed frame; 45, hook; 46, rubber tube; 47, protective chain; 48, first limiting cylinder; 49, limiting piece; 50, side plate; 51, mounting ring; 52, hinge; 53, protective frame; 54, second mounting cylinder; 55, second limiting cylinder; 56, second through hole; 57, vertical rod; 58, telescopic oil cylinder. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific drawings.

[0029] It should be noted that when an element is referred to as being "fixed" to another element, it can be on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are used for illustrative purposes only and are not intended to be limiting.

[0030] EMBODIMENT

[0031] AsFigures 1-7 As shown, the present application provides a coal mine charging hole sealing and face protection integrated machine, comprising a pneumatic tracked vehicle 10, a charging machine 12, a stemming hole sealing machine 13, a four-bar linkage 37 mechanism, a construction operation platform 40 and its face protection net, a control system 11, and is integrally arranged on the pneumatic tracked vehicle 10;

[0032] In this embodiment, the pneumatic tracked vehicle 10 is an MPCQL-3D mine tracked flat car, which is a kind of underground transportation equipment powered by underground air source, integrating transportation, hoisting and installation. It is small in size, flexible, safe and suitable for transportation, hoisting and installation of various parts of medium and small weight. The mine tracked flat car has the advantages of reasonable structure, advanced technical performance, strong process adaptability, labor-saving operation, safety and reliability, and high working efficiency.

[0033] The chassis assembly is mainly composed of a frame, a track assembly, a horizontal telescopic oil cylinder and a vertical telescopic oil cylinder. The frame is composed of high-quality steel plates and is connected to the track by bolts to form the chassis assembly. The chassis has the advantages of good rigidity, high strength and easy disassembly. The track assembly is composed of guide wheels, supporting wheels, chain wheels and tensioning devices, and is an important part of the coal mine charging hole sealing and face protection integrated machine. The machine uses high-strength alloy steel to manufacture a combined sealing track chain, which ensures the normal operation of the coal mine charging hole sealing and face protection integrated machine in harsh environments. The two groups of horizontal and vertical oil cylinders not only directly bear the weight of the machine, but also increase the stress area when hoisting goods, balance and stabilize the vehicle body. The chassis is the connecting part of the column assembly, the oil tank assembly, the operation assembly and the control assembly, and is also the stress part of the coal mine charging hole sealing and face protection integrated machine. It needs to be noted that when the integrated machine is fixed, the track contact with the ground needs to be cleaned to prevent individual protrusions from causing unstable fixing of the main machine or damage to the track plate.

[0034] The high-pressure air drives the pneumatic motor to drive the oil pump, which in turn drives the hydraulic motor to drive the tracked vehicle to move. At the same time, the four-bar linkage mechanism completes the lifting of the construction platform and the opening and closing of the left and right side plates of the construction platform through the extension and retraction of the oil cylinder. The charging machine realizes automatic feeding of the cartridge hopper and loading of the charging pipe into the blast hole through the cylinder and logic gate. The hole sealing machine stirs the stemming through the pneumatic motor and then feeds it into the blast hole through the screw pump.

[0035] When moving, a dedicated person should comb the air inlet pipeline, and it is strictly forbidden to use the vehicle to drag the air inlet pipeline. When moving, the movement of the two sides of the track is controlled by two valve rods, and the path and road conditions are checked at all times. The maximum climbing slope of the transportation crane is 20°, and it is strictly forbidden to climb over large slopes; the tracked vehicle is narrow and small, and it is strictly forbidden to pass through the inclined road surface with an inclination of 20° and above, and it should be handled before passing; if the center of the goods is high or biased to one side, the inclination of the inclined road surface that can be passed through will be correspondingly reduced. When moving backward, the operator must stand on the pedal to operate the walking handle.

[0036] The pneumatic tracked vehicle 10 is provided with a charging machine on one side, a stemming hole sealing machine on the other side, a four-bar linkage 37 mechanism at the front end, a standing platform 14 at the rear end, a construction operation platform 40 at the front end of the four-bar linkage 37 mechanism, and a face protection net at the front side of the construction operation platform 40.

[0037] The four-bar linkage 37 mechanism is provided with the construction operation platform 40 and the face protection net at the front end, the construction operation platform 40 includes a bottom plate 41, side plates 50 provided at both ends of the bottom plate 41 through hinges 52, a pair of fences 42 provided on the upper surface of the bottom plate 41, the fences 42 are vertically provided on the inner and outer sides of the bottom plate 41, the top outer wall of the fence 42 on the outer side is provided with a first mounting cylinder 43, the top outer wall of the fence 42 on the inner side is provided with a first limiting cylinder 48, the top of the fence 42 is provided with a protective chain 47, the front end of the protective chain 47 is provided with a limiting piece 49, a fixing frame 44 is vertically provided in the first mounting cylinder 43, the fixing frame 44 is a U-shaped structure, and the outer wall of the fixing frame 44 is uniformly provided with hooks 45, the outer side of the upper surface of each of the side plates 50 is provided with a mounting ring 51, and the mounting rings 51 are equally spaced, a vertical rod 57 is vertically provided at the middle position of the inner side of the bottom plate 41, and telescopic oil cylinders 58 are respectively provided on the two side walls of the vertical rod 57, and the telescopic ends of the telescopic oil cylinders 58 are respectively connected with the side plates 50.

[0038] The width of the bottom plate is 0.9 meters, the width of the side plate 50 is 1.6 meters, the width of the side plate 50 is consistent with the height of the construction operation platform, and the worker standing on the construction operation platform can basically operate all the holes.

[0039] In specific implementation, the left and right side plates are heavy, and it is very inconvenient to manually fold and unfold them, the telescopic oil cylinders 58 are provided to facilitate the folding and unfolding of the two side plates, the total length of the telescopic oil cylinders 58 is 0.55 meters when they are retracted, and is 0.45 meters when they are extended, and they are arranged at an angle of 45°, one on the left and one on the right.

[0040] The face protection net is located in front of the construction operation platform 40, the face protection net is composed of a plurality of rubber pipes 46 with steel wires inside, and the rubber pipes 46 are equally spaced, and the two ends of the rubber pipes 46 are respectively fixed on the mounting rings 51.

[0041] The four-bar linkage mechanism 33 is arranged at the left top end of the pneumatic tracked vehicle 10, a vertical column is arranged at the left side of the pneumatic tracked vehicle 10, the four-bar linkage mechanism 33 is arranged at the top of the vertical column 30, a supporting oil cylinder 34 is arranged at the left side of the vertical column 30 below the four-bar linkage mechanism 33, the output end 57 of the supporting oil cylinder 34 is hinged to the lower surface of the four-bar linkage mechanism 33, and the front end of the four-bar linkage mechanism 33 is connected with the bottom plate 41 through a mounting plate 38.

[0042] The front end of the side plate 50 is provided with a pair of second mounting barrels 54, a protective frame 53 is detachably inserted into the second mounting barrels 54, the side wall of the protective frame 53 is provided with a second limiting barrel 55, the first limiting barrel 48 corresponds to the second limiting barrel 55, and the first limiting barrel 48 and the second limiting barrel 55 are connected through a limiting piece 49.

[0043] The bottom wall of the bottom plate 41 is vertically provided with a supporting rod 36 on the right side, the supporting rod 36 is provided with two supporting rods, which are distributed at both ends of the bottom plate 41, and the side wall of the supporting rod 36 is uniformly provided with a climbing rod 35.

[0044] The rubber tube 46 penetrates the hook 45 respectively.

[0045] The surface of the bottom plate 41 is uniformly provided with a first through hole 411, and the surface of the side plate 50 is uniformly provided with a second through hole 56.

[0046] The outer wall of the hanging arm 33 is provided with a limiting groove 334 along the long side direction, a sliding block 332 is slidingly arranged in the limiting groove 334, a fixed plate 333 is arranged on the outer wall of the sliding block 332, and a sleeve 331 is arranged on the outer wall of the fixed plate 333. The limiting rods 391 are vertically arranged on both sides of the connecting plate 39.

[0047]

[0048] Table 1 Diameter 35 cartridge charge parameters

[0049] According to the rock roadway face blast hole design drawing of a deep coal mine in Huainan mining area, the rock roadway face blast hole design drawing of a deep coal mine is seen, the blasting parameters are seen, the existing blasting process is seen, the artificial charging construction platform and the artificial face protection mode are seen Figure 8 , the influencing factors of the face spalling and the gangue collapse law are analyzed, and based on the principles of practicality, safety, high efficiency, stability and reliability, a scheme of an integrated machine integrating charging, hole sealing, charging construction platform and face protection is designed.

[0050] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal mine charging and sealing head-on protection integrated machine, comprising a pneumatic crawler vehicle (10), a charging machine (12), a taphole sealing machine (13), a four-bar linkage, a construction operation platform (40), a head-on protection net, and a control system (11), and is integrated and arranged on the pneumatic crawler vehicle (10), characterized in that: A charging machine is provided on one side of the pneumatic crawler (10), a gun mud sealing machine is provided on the other side of the pneumatic crawler (10), a four-bar linkage is provided at the front end of the pneumatic crawler (10), a standing platform (14) is provided at the rear end of the pneumatic crawler (10), a construction operation platform (40) is provided at the front end of the four-bar linkage, and a front face protection net is provided on the front side of the construction operation platform (40); The front end of the four-bar linkage is provided with the construction operation platform (40) and the face protection net. The construction operation platform (40) includes a bottom plate (41) and side plates (50) respectively provided at both ends of the bottom plate (41) through hinges (52). A pair of fences (42) are provided on the upper surface of the bottom plate (41). The fences (42) are vertically provided on the inner and outer sides of the bottom plate (41). The top outer wall of the fence (42) located on the outer side is provided with a first mounting cylinder (43), and the top outer wall of the fence (42) located on the inner side is provided with a first limiting cylinder (48). A protection chain (47) is provided on the top of the fence (42). The front of the protection chain (47) A limiting member (49) is provided at the end, a fixing frame (44) is vertically provided in the first mounting tube (43), the fixing frame (44) is a U-shaped structure, and hooks (45) are evenly provided on the outer wall of the fixing frame (44), the outer sides of the upper surfaces of the two side plates (50) are provided with mounting rings (51), and the mounting rings (51) are arranged at equal intervals, a vertical rod (57) is vertically provided at the middle position of the inner side of the bottom plate (41), and telescopic oil cylinders (58) are respectively provided on both side walls of the vertical rod (57), and the telescopic ends of the telescopic oil cylinders (58) are respectively connected to the side plates (50); The front face protection net is located in front of the construction operation platform (40), and is composed of a plurality of hoses (46) with steel wire ropes inserted therein, and the hoses (46) are distributed at equal intervals, and the two ends of the hoses (46) are respectively fixed on the mounting ring (51); The four-bar linkage (33) is arranged at the top left side of the pneumatic crawler (10), a column is vertically arranged on the left side of the pneumatic crawler (10), the four-bar linkage (33) is arranged at the top of the column (30), a supporting oil cylinder (34) is arranged below the four-bar linkage (33) and corresponding to the left side of the column (30), the output end 57 of the supporting oil cylinder (34) is hinged to the lower surface of the four-bar linkage (33), and the front end of the four-bar linkage (33) is connected to the bottom plate (41) through the mounting plate (38); A pair of second mounting tubes (54) are provided at the front end of the side plate (50), and a protective frame (53) is detachably inserted into the second mounting tube (54). A second limiting tube (55) is provided on the side wall of the side plate (50), and the first limiting tube (48) corresponds to the second limiting tube (55), and the first limiting tube (48) and the second limiting tube (55) are connected via a limiting member (49).

2. The coal mine charging, sealing and face protection integrated machine according to claim 1 is characterized in that: A support rod (36) is vertically arranged on the right side of the bottom wall of the bottom plate (41), and two support rods (36) are arranged and distributed at both ends of the bottom plate (41). Climbing rods (35) are evenly arranged on the side walls of the support rods (36).

3. The coal mine charging, sealing and face protection integrated machine according to claim 1 is characterized in that: The rubber hoses (46) respectively pass through the hooks (45).

4. The coal mine charging, sealing and face protection integrated machine according to claim 1 is characterized in that: The surface of the bottom plate (41) is uniformly provided with first through holes (411), and the surface of the side plate (50) is uniformly provided with second through holes (56).

5. The coal mine charging, sealing and face protection integrated machine according to claim 1 is characterized in that: The outer wall of the four-bar linkage (33) is provided with a limiting groove (334) along the long side direction, a slider (332) is slidably provided in the limiting groove (334), a fixing plate (333) is provided on the outer wall of the slider (332), and a sleeve (331) is provided on the outer wall of the fixing plate (333).

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