Gate-type adjustable-distributing-quantity coal plough and control method thereof

Abstract

The invention relates to a gate-type adjustable-distribution-quantity coal plough and a control method thereof. The gate-type adjustable-distribution-quantity coal plough comprises a base, a movable connecting frame, a carrier roller set, a push rod support, a first electric-hydraulic push rod, a swing rod, an upper connecting rod, a lower connecting rod, a composite coal plough assembly and a distribution quantity control system. The composite coal ploughing assembly is composed of a V-shaped coal guide plate, a main coal ploughing piece, a second electric-hydraulic push rod and an edge coal cleaning moldboard; and the main coal ploughing piece can lift and move under the driving of the second electric-hydraulic pusher. According to the coal plough, coal on the belt conveyor can be accurately ploughed out according to the needed material distribution amount, and remote distribution control over different discharging amounts of different parts can be achieved through the material distribution amount control system.

Description

Technical Field

[0001] The present invention relates to a coal plough, and particularly to a gantry adjustable coal dividing plough and its control method. Background Art

[0002] The coal plough, also known as the plough-type tripper, is widely used in industries such as coal, metallurgy, as well as in places such as power plants and docks. It is a commonly used intermediate or sectional discharging device on belt conveyors. The coal plough is installed on the intermediate frame of the belt conveyor to perform the tasks of discharging and controlling the flow direction of the conveyed material, and can discharge the material conveyed by the belt conveyor into the hopper or transfer it to other places.

[0003] When the coal plough works, the push rod extends to act on the driving rod, driving the plough blade of the coal plough to fall, and supporting the idler group through the link mechanism, making the working surface of the belt conveyor flat. The lower edge of the plough blade of the coal plough fits tightly with the belt surface, and the material on the belt is discharged into the coal hopper or transfer chute.

[0004] Currently, the widely used coal ploughs all achieve different functions through the lifting of the plough blade. When the plough blade falls and closely adheres to the conveying belt, all the coal material on the conveying belt can be ploughed out; when the plough blade falls into the coal material on the conveying belt but still maintains a certain distance from the conveying belt, a part of the upper coal material can be ploughed out; when the plough blade is lifted above the coal material on the conveying belt, it does not play a role in cutting and ploughing the coal flow, and all the coal material passes through.

[0005] For example, the "coal plough" disclosed in the Chinese patent application with the application publication number CN 110775599 A includes a bracket, a coal plough plate, a pair of vertically arranged lifting hydraulic cylinders, a linear electric push rod, and multiple groups of idlers arranged on the upper part of the bracket. The upper surfaces of the multiple groups of idlers are provided with a belt; the coal plough plate is composed of plough blades symmetrically arranged on both sides and integrally formed; a pair of vertically arranged lifting hydraulic cylinders are respectively arranged on the front and rear sides of the belt, the cylinder barrels of the pair of vertically arranged lifting hydraulic cylinders are fixedly connected to the bracket, and the piston rod ends of the pair of vertically arranged lifting hydraulic cylinders are fixedly connected to a horizontally arranged cross beam; the seat body of the linear electric push rod is hinged to the upper end of the rotating arm, the lower end of the rotating arm is hinged to the upper end of the cross beam; the rod end of the linear electric push rod is hinged to the upper part of the right end of the coal plough plate. This coal plough has a simple structure and is convenient for installation and maintenance.

[0006] The disadvantage of the above coal plough is that when it is necessary to plough out part of the coal material, it is impossible to accurately plough out a fixed quantity according to the need.

[0007] The Chinese utility model patent with the authorization announcement number of CN 217024317 U discloses "a vertical lifting double-plow head coal plow", which includes a discharge device support. The top of the discharge device support is respectively provided with a first mounting frame and a second mounting frame from left to right. A first hydraulic push rod and a second hydraulic push rod are respectively arranged on the first mounting frame and the second mounting frame. The bottom ends of the first hydraulic push rod and the second hydraulic push rod respectively penetrate through the first mounting frame and the second mounting frame and extend to the outside of the first mounting frame and the second mounting frame. For this vertical lifting double-plow head coal plow, two single-side plow type discharge devices can be installed inside a limited space through the discharge device support, the first mounting frame and the second mounting frame, saving the space required for installation and reducing the modification difficulty of existing equipment. According to different discharge requirements, the first hydraulic rod or the second hydraulic rod can be controlled, so as to control the first single-side plow head or the second single-side plow head, and thus different discharge requirements can be realized.

[0008] The above-mentioned vertical lifting double-plow head coal plow can only perform two-level adjustment, that is, only two different discharge amounts can be achieved. Therefore, it cannot be used in occasions where there are multiple discharge amount requirements and precise requirements for the discharge amount. Summary of the Invention

[0009] The present invention provides a gantry type adjustable coal plow with variable discharge amount and its control method. Through the coal plow, the coal material on the belt conveyor can be precisely plowed out according to the required discharge amount, and the remote distribution control of different discharge amounts at different positions can be realized through the discharge amount control system.

[0010] In order to achieve the above purpose, the present invention is realized by adopting the following technical solutions:

[0011] A gantry adjustable coal plough with variable coal distribution amount, comprising a base, a movable connecting frame and a roller group arranged under a belt conveyor, and the roller group is connected to the base through the movable connecting frame; it further comprises a push rod support, a first electro-hydraulic push rod, a swing rod, an upper connecting rod, a lower connecting rod and a composite coal plough assembly; the two push rod supports are respectively arranged on the base on both sides of the belt conveyor, and the upper parts of the push rod supports are connected through an upper connecting shaft to form a gantry frame structure; the middle parts of the two swing rods are respectively rotatably connected to the corresponding ends of the upper connecting shaft, the lower parts of the push rod supports are connected through a lower connecting shaft, one end of the lower connecting shaft is connected to the extending end of the first electro-hydraulic push rod, and the upper ends of the two swing rods are hinged to one ends of the corresponding upper connecting rods; the other ends of the two upper connecting rods are hinged to a fixing part in the composite coal plough assembly; the composite coal plough assembly consists of a V-shaped coal guiding plate, a main coal plough part, a second electro-hydraulic push rod and an edge coal cleaning plough plate; the V-shaped coal guiding plate is a vertical plate with a V-shaped cross section, and its tip is arranged towards the coal incoming direction; the main coal plough part consists of a V-shaped inner sleeve plate and a main coal plough plate, the V-shaped inner sleeve plate is arranged inside the V-shaped coal guiding plate, and the two are slidably connected to form a nested structure; the main coal plough plate is arranged at the bottom of the V-shaped inner sleeve plate; a top plate is arranged at the top of the V-shaped coal guiding plate, the second electro-hydraulic push rod is arranged on the top plate, the extending end of the second electro-hydraulic push rod is connected to the main coal plough part, and the main coal plough part can move up and down under the drive of the second electro-hydraulic push rod; along the coal conveying direction, the edge coal cleaning plough plates are arranged on both sides downstream of the V-shaped coal guiding plate, the tops of the edge coal cleaning plough plates are connected to the top plate, the inner ends of the edge coal cleaning plough plates are connected to the V-shaped coal guiding plate, and the outer ends of the edge coal cleaning plough plates are hinged to the push rod support through the lower connecting rod.

[0012] A gantry adjustable coal plough with variable coal distribution amount further comprises a coal distribution amount control system; the coal distribution amount control system comprises a main controller, a composite coal plough assembly travel switch and a main coal plough plate travel controller; the composite coal plough assembly travel switch is arranged outside the extending end of the first electro-hydraulic push rod, and the main coal plough plate travel controller is arranged outside the extending end of the second electro-hydraulic push rod; an electronic belt scale one is arranged under the belt of the belt conveyor upstream of the gantry adjustable coal plough with variable coal distribution amount, and an electronic belt scale two is arranged under the belt of the belt conveyor downstream of the gantry adjustable coal plough with variable coal distribution amount; the signal output ends of the electronic belt scale one, the electronic belt scale two and the composite coal plough assembly travel switch are respectively connected to the main controller, the control ends of the first electro-hydraulic push rod, the second electro-hydraulic push rod and the main coal plough plate travel controller are respectively connected to the main controller, and the main controller is additionally connected to a coal conveying centralized control system.

[0013] Further, guide grooves are respectively arranged in the middle, two ends of the V-shaped coal guiding plate, and T-shaped guide rails are respectively arranged at the corresponding positions of the V-shaped inner sleeve plate, and the sliding connection between the main coal plough part and the V-shaped coal guiding plate is realized through the cooperation of the T-shaped guide rails and the guide grooves.

[0014] Further, an upper support plate and a lower support plate are arranged at intervals below the top plate. The upper support plate and the lower support plate are both arranged parallel to the top plate. The electro-hydraulic push rod II is fixed on the top plate, and the extending end of the electro-hydraulic push rod II passes through the top plate and is hinged to the upper support plate. One ends of the upper support plate and the lower support plate are respectively connected to the V-shaped inner sleeve plate. A support vertical plate is further arranged at one end of the top of the main coal plough plate away from the V-shaped inner sleeve plate. The upper support plate and the lower support plate are respectively connected to the support vertical plate. The upper support plate, the lower support plate and the support vertical plate and the main coal plough component form an integral moving component.

[0015] A control method for a gantry adjustable coal distributing plough includes the following steps:

[0016] 1) The coal conveying centralized control system sends the initial value of the set unit coal unloading amount to the main controller;

[0017] 2) After the belt conveyor starts, the electronic belt scale I sends the measured value of the coal amount coming to the belt conveyor per unit time to the main controller;

[0018] 3) The main controller sends a start instruction to the electro-hydraulic push rod I, and the electro-hydraulic push rod I pushes the composite coal plough component to fall towards the belt surface as a whole;

[0019] 4) The main controller calculates the unit coal conveying amount after passing through the coal plough, that is, the value obtained by subtracting the unit time coal unloading amount of the coal plough from the coal amount coming to the belt conveyor per unit time; then converts the unit coal conveying amount after passing through the coal plough into the layer height of the coal material when passing through the coal plough, that is, the height value of the main coal plough plate from the belt surface, and sends the calculated height value to the main coal plough plate stroke controller;

[0020] 5) The main controller sends a start instruction to the electro-hydraulic push rod II. When the electro-hydraulic push rod II reaches the specified position controlled by the main coal plough plate stroke controller after starting, it sends a feedback signal to the main controller, and the main controller controls the electro-hydraulic push rod II to stop acting;

[0021] 6) The electronic belt scale II sends the measured value of the coal amount passing through the coal plough by the belt conveyor per unit time to the main controller;

[0022] 7) The main controller compares the measured value of the coal amount sent by the electronic belt scale II with the initial value of the set unit coal unloading amount; when the measured value of the coal amount is greater than the set initial value, start the electro-hydraulic push rod II for fine adjustment. At this time, the electro-hydraulic push rod II drives the main coal plough component to press down; on the contrary, when the measured value of the coal amount is less than the set initial value, the electro-hydraulic push rod II drives the main coal plough component to lift; until the measured value of the coal amount is consistent with the initial set value, stop the adjustment.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1) The V-shaped coal guiding plate in the composite coal ploughing component does not directly contact the belt surface and is only used to stratify the incoming coal, and then the required coal is ploughed out by the main coal ploughing component; the main coal ploughing component is driven by the electro-hydraulic push rod two and can achieve stepless adjustment, so as to achieve the purpose of accurately adjusting the coal unloading volume;

[0025] 2) A material distribution amount control system is provided, which adopts the way of feedback control closed-loop regulation and can accurately plough the coal according to the set coal unloading volume;

[0026] 3) By adopting the cooperation mode of the V-shaped coal guiding plate and the main coal ploughing component, the resistance of coal ploughing is reduced, and excessive wear of the belt is avoided;

[0027] 4) The structure of the gantry adjustable material distribution amount coal plough is reasonable, which can make the distribution of coal material in the width direction of the belt conveyor consistent with the distribution of incoming coal in the width direction of the belt conveyor, facilitate the subsequent treatment of coal material, and can effectively prevent the belt conveyor from deviating. Description of the Drawings

[0028] Figure 1 is the front view of a gantry adjustable material distribution amount coal plough described in the present invention Figure 1 (before the composite coal ploughing component drops).

[0029] Figure 2 is the front view of a gantry adjustable material distribution amount coal plough described in the present invention Figure 2 (after the composite coal ploughing component drops and before the main coal ploughing component drops).

[0030] Figure 3 is Figure 2 the side view.

[0031] Figure 4 is Figure 2 the top view.

[0032] Figure 5 is the front view of a gantry adjustable material distribution amount coal plough described in the present invention Figure 3 (after the main coal ploughing component drops after the composite coal ploughing component drops).

[0033] Figure 6 The control schematic diagram of a gantry adjustable material distribution amount coal plough described in the present invention.

[0034] In the figure: 1. Base; 2. Movable connecting frame; 3. Roller group; 4. Belt conveyor; 5. Electronic belt scale I; 6. Electronic belt scale II; 7. Electro-hydraulic push rod I; 8. Push rod support; 9. Swing rod; 10. Upper connecting rod; 11. Composite coal ploughing component; 111. Edge coal cleaning plough plate; 112. Roof plate; 113. V-shaped coal guiding plate; 114. Upper support plate; 115. Electro-hydraulic push rod II; 116. Main coal ploughing plate stroke controller; 117. Main coal ploughing plate; 118. Lower support plate; 119. Guide rail groove; 120. T-shaped guide rail; 12. Composite coal ploughing component travel switch; 13. Main controller; 14. Centralized coal conveying control system; 15. Lower connecting shaft; 16. Coal discharging chute Specific embodiments

[0035] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0036] As Figures 1-5 shown, a portal adjustable coal ploughing device of the present invention includes a base 1, a movable connecting frame 2 and a roller group 3 arranged below the belt conveyor 4. The roller group 3 is connected to the base 1 through the movable connecting frame 2. It also includes a push rod support 8, an electro-hydraulic push rod I 7, a swing rod 9, an upper connecting rod 10, a lower connecting rod and a composite coal ploughing component 11. Two push rod supports 8 are respectively arranged on the base 1 on both sides of the belt conveyor 4. The upper parts of the push rod supports 8 are connected through an upper connecting shaft to form a portal frame structure. The middle parts of the two swing rods 9 are respectively rotatably connected to the corresponding ends of the upper connecting shaft. The lower parts of the push rod supports 8 are connected through a lower connecting shaft 15. One end of the lower connecting shaft 15 is connected to the extending end of the electro-hydraulic push rod I 7. The upper ends of the two swing rods 9 are hinged to one end of the corresponding upper connecting rod 10. The other ends of the two upper connecting rods 10 are hinged to a fixed part in the composite coal ploughing component 11. The composite coal ploughing component 11 is composed of a V-shaped coal guiding plate 113, a main coal ploughing member, an electro-hydraulic push rod II 115 and an edge coal cleaning plough plate 111. The V-shaped coal guiding plate 113 is a vertical plate with a V-shaped cross-section, and its tip is arranged towards the coal incoming direction. The main coal ploughing member is composed of a V-shaped inner sleeve plate and a main coal ploughing plate 117. The V-shaped inner sleeve plate is arranged inside the V-shaped coal guiding plate 113, and the two are slidably connected to form a nested structure. The main coal ploughing plate 117 is arranged at the bottom of the V-shaped inner sleeve plate. A roof plate 112 is arranged at the top of the V-shaped coal guiding plate 113. The electro-hydraulic push rod II 115 is arranged on the roof plate 112. The extending end of the electro-hydraulic push rod II 115 is connected to the main coal ploughing member. Under the drive of the electro-hydraulic push rod II 115, the main coal ploughing member can move up and down. Along the coal conveying direction, the edge coal cleaning plough plate 111 is arranged on both downstream sides of the V-shaped coal guiding plate 113. The top of the edge coal cleaning plough plate 111 is connected to the roof plate 112. The inner end of the edge coal cleaning plough plate 111 is connected to the V-shaped coal guiding plate 113. The outer end of the edge coal cleaning plough plate 112 is hinged to the push rod support 8 through a lower connecting rod.

[0037] As Figure 6As shown in the figure, the portal adjustable coal plough of the present invention further includes a coal distribution control system; the coal distribution control system includes a main controller 13, a compound coal plough assembly travel switch 12 and a main coal plough plate travel controller 116; the compound coal plough assembly travel switch 12 is arranged outside the extending end of the first electro-hydraulic push rod 7, and the main coal plough plate travel controller 116 is arranged outside the extending end of the second electro-hydraulic push rod 115; an electronic belt scale 5 is arranged under the belt of the belt conveyor 4 upstream of the portal adjustable coal plough, and an electronic belt scale 6 is arranged under the belt of the belt conveyor 4 downstream of the portal adjustable coal plough; the signal output ends of the electronic belt scale 5, the electronic belt scale 6 and the compound coal plough assembly travel switch 12 are respectively connected to the main controller 13, the control ends of the first electro-hydraulic push rod 7, the second electro-hydraulic push rod 115 and the main coal plough plate travel controller 116 are respectively connected to the main controller 13, and the main controller 13 is additionally connected to the coal conveying centralized control system 14.

[0038] Further, guide rail grooves 119 are respectively arranged in the middle and at both ends of the V-shaped coal guiding plate 113, and T-shaped guide rails 120 are respectively arranged at the corresponding positions of the V-shaped inner sleeve plate. The sliding connection between the main coal plough part and the V-shaped coal guiding plate 113 is realized through the cooperation of the T-shaped guide rails 120 and the guide rail grooves 119.

[0039] Further, an upper support plate 114 and a lower support plate 118 are arranged at intervals below the top plate 112, and both the upper support plate 114 and the lower support plate 118 are arranged parallel to the top plate 112; the second electro-hydraulic push rod 115 is fixed on the top plate 112, and the extending end of the second electro-hydraulic push rod 115 passes through the top plate 112 and is hinged to the upper support plate 114; one ends of the upper support plate 114 and the lower support plate 118 are respectively connected to the V-shaped inner sleeve plate; a support vertical plate is further arranged at the end of the top of the main coal plough plate 117 away from the V-shaped inner sleeve plate, and the upper support plate 114 and the lower support plate 118 are respectively connected to the support vertical plate; the upper support plate 114, the lower support plate 118, the support vertical plate and the main coal plough part form an integral moving assembly.

[0040] The control method of the portal adjustable coal plough of the present invention includes the following steps:

[0041] 1) The coal conveying centralized control system 14 sends the initial value of the set unit coal unloading amount to the main controller 13;

[0042] 2) After the belt conveyor 4 starts, the electronic belt scale 5 sends the measured value of the coal incoming amount per unit time of the belt conveyor to the main controller 13;

[0043] 3) The main controller 13 sends a start command to the first electro-hydraulic push rod 7, and the first electro-hydraulic push rod 7 pushes the compound coal plough assembly 11 to fall towards the belt surface as a whole;

[0044] 4) The main controller 13 calculates the unit coal conveying volume after the coal plough, that is, the value obtained by subtracting the coal unloading volume per unit time of the coal plough from the coal feeding volume per unit time of the belt conveyor; then converts the unit coal conveying volume after the coal plough into the height of the coal layer when the coal passes through the coal plough, that is, the height value of the main coal plough plate from the belt surface, and sends the calculated height value to the main coal plough plate stroke controller 116;

[0045] 5) The main controller 13 sends a start command to the electro-hydraulic push rod two 115. When the electro-hydraulic push rod two 115 reaches the designated position controlled by the main coal plough plate stroke controller 116 after starting, it sends a feedback signal to the main controller 13, and the main controller 13 controls the electro-hydraulic push rod two 115 to stop acting;

[0046] 6) The electronic belt scale two 6 sends the measured value of the coal volume passing through the coal plough per unit time of the belt conveyor to the main controller 13;

[0047] 7) The main controller 13 compares the measured value of the coal volume sent by the electronic belt scale two 6 with the initial value of the set unit coal unloading volume; when the measured value of the coal volume is greater than the set initial value, the electro-hydraulic push rod two 115 is started for fine adjustment. At this time, the electro-hydraulic push rod two 115 drives the main coal ploughing part to press down; on the contrary, when the measured value of the coal volume is less than the set initial value, the electro-hydraulic push rod drives the main coal ploughing part to lift; the adjustment stops until the measured value of the coal volume is consistent with the initial set value.

[0048] In the portal adjustable coal distributing plough (referred to as coal plough) of the present invention, the base 1, the idler group 3 and the movable connecting frame 2 are conventional settings. When the electro-hydraulic push rod one 7 extends to drive the composite coal ploughing component 11 to descend, the idler group 3 is supported by the movable connecting rod frame 2 to make the working surface of the belt conveyor 4 flat, which is beneficial to coal ploughing operation.

[0049] In the present invention, the electro-hydraulic push rod one 7 generates a driving force, and a four-bar linkage mechanism composed of a swing rod 9, an upper connecting rod 10, a lower connecting rod and a push rod support 8 drives the composite coal ploughing component 11 to lift or fall, and its movement has high stability and high accuracy.

[0050] In the composite coal ploughing component 11 of the present invention, the V-shaped coal guiding plate 113 and the edge coal cleaning plough plate 111 are of an integral structure. The main coal ploughing part is arranged in the internal space surrounded by the V-shaped coal guiding plate 113. The main coal ploughing part is a three-dimensional structure composed of a V-shaped inner sleeve plate and a main coal plough plate 117, and is the main coal ploughing component. The main coal ploughing part can lift and lower under the drive of the electro-hydraulic push rod two 115. The V-shaped coal guiding plate 113 always keeps a certain distance from the belt surface of the belt conveyor 4 during the coal ploughing process, that is, it does not directly contact the belt surface. The V-shaped coal guiding plate 113 can pre-level the coal conveyed on the belt conveyor 4 to ensure the accuracy of the coal unloading volume when the main coal ploughing part unloads coal. The edge coal cleaning plough plate 111 mainly ensures that all the ploughed coal falls into the coal unloading chutes 16 on both sides.

[0051] The present invention is provided with a coal distribution control system. Through the cooperation of the main controller 13 with the first electro-hydraulic push rod 7, the second electro-hydraulic push rod 115, the main coal plough plate travel controller 116, the composite coal plough assembly travel switch 12, the first electronic belt scale 5, and the second electronic belt scale 6, and the information transmission with the external coal conveying centralized control system 14, feedback control closed-loop regulation is achieved to ensure that coal is accurately ploughed out according to the set coal unloading amount.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A door-type adjustable material distribution coal plow, comprising a base, a movable connecting frame and a roller group arranged below a belt conveyor, wherein the roller group is connected to the base through the movable connecting frame; characterized in that: It also includes a push rod bracket, an electro-hydraulic push rod 1, a swing rod, an upper connecting rod, a lower connecting rod and a composite coal plow assembly; the two push rod brackets are respectively arranged on the bases on both sides of the belt conveyor, and the upper parts of the push rod brackets are connected through the upper connecting shaft to form a portal frame structure; the middle parts of the two swing rods are rotatably connected to the corresponding ends of the upper connecting shaft, and the lower parts of the push rod brackets are connected through the lower connecting shaft, one end of the lower connecting shaft is connected to the protruding end of the electro-hydraulic push rod 1, and the upper ends of the two swing rods are hinged to one end of the corresponding upper connecting rod; the other ends of the two upper connecting rods are hinged to the fixing parts in the composite coal plow assembly; the composite coal plow assembly is composed of a V-shaped coal guide plate, a main coal plow component, an electro-hydraulic push rod 2 and an edge coal cleaning plow plate; the V-shaped coal guide The plate is a vertical plate with a V-shaped cross-section, and its tip is set toward the direction of incoming coal; the main coal plow piece is composed of a V-shaped inner sleeve plate and a main coal plow plate, the V-shaped inner sleeve plate is arranged on the inner side of the V-shaped coal guide plate, and the two are slidably connected to form a nested structure; the main coal plow plate is arranged at the bottom of the V-shaped inner sleeve plate; a top plate is arranged on the top of the V-shaped coal guide plate, and a second electro-hydraulic push rod is arranged on the top plate, and the protruding end of the second electro-hydraulic push rod is connected to the main coal plow piece, and the main coal plow piece can be raised and lowered under the drive of the second electro-hydraulic push rod; along the coal conveying direction, the edge coal cleaning plow plate is arranged on both sides of the downstream of the V-shaped coal guide plate, the top of the edge coal cleaning plow plate is connected to the top plate, the inner end of the edge coal cleaning plow plate is connected to the V-shaped coal guide plate, and the outer end of the edge coal cleaning plow plate is hinged to the push rod bracket through the lower connecting rod.

2. A gate-type adjustable material distribution coal plow according to claim 1, characterized in that: It also includes a material distribution quantity control system; the material distribution quantity control system includes a main controller, a composite coal plow assembly stroke switch and a main coal plow plate stroke controller; the composite coal plow assembly stroke switch is arranged on the outside of the extended end of the electro-hydraulic push rod 1, and the main coal plow plate stroke controller is arranged on the outside of the extended end of the electro-hydraulic push rod 2; an electronic belt scale 1 is arranged under the belt conveyor belt upstream of the gate-type adjustable material distribution quantity plow, and an electronic belt scale 2 is arranged under the belt conveyor belt downstream of the gate-type adjustable material distribution quantity plow; the signal output ends of the electronic belt scale 1, the electronic belt scale 2 and the composite coal plow assembly stroke switch are respectively connected to the main controller, and the control ends of the electro-hydraulic push rod 1, the electro-hydraulic push rod 2 and the main coal plow plate stroke controller are respectively connected to the main controller, and the main controller is also connected to the coal transportation centralized control system.

3. A gate-type adjustable material distribution coal plow according to claim 1, characterized in that: The middle and both ends of the V-shaped coal guide plate are respectively provided with guide rail grooves, and the corresponding positions of the V-shaped inner sleeve plate are respectively provided with T-shaped guide rails. The sliding connection between the main coal plowing part and the V-shaped coal guide plate is realized through the cooperation of the T-shaped guide rails and the guide rail grooves.

4. A gate-type adjustable material distribution coal plow according to claim 1, characterized in that: An upper support plate and a lower support plate are provided at intervals below the top plate, and the upper support plate and the lower support plate are arranged parallel to the top plate; the second electro-hydraulic push rod is fixed on the top plate, and the extended end of the second electro-hydraulic push rod passes through the top plate and is hinged to the upper support plate; one end of the upper support plate and the lower support plate are respectively connected to the V-shaped inner sleeve plate; a supporting vertical plate is also provided on the top of the main coal plow plate at the end away from the V-shaped inner sleeve plate, and the upper support plate and the lower support plate are respectively connected to the supporting vertical plate; the upper support plate, the lower support plate, the supporting vertical plate and the main coal plow component constitute an integral moving assembly.

5. A control method for the gate-type adjustable material distribution coal plough as claimed in any one of claims 1 to 4, characterized in that: The steps include: 1) The centralized coal handling control system sends the set initial value of the unit coal unloading quantity to the main controller; 2) After the belt conveyor is started, the electronic belt scale sends the measured value of the coal quantity per unit time of the belt conveyor to the main controller; 3) The main controller sends a start command to the electro-hydraulic push rod 1, and the electro-hydraulic push rod 1 pushes the composite coal plow assembly as a whole to fall toward the belt surface; 4) The main controller calculates the unit coal transport volume after passing through the coal plow, that is, the value obtained by subtracting the coal unloading volume per unit time of the coal plow from the coal transport volume per unit time of the belt conveyor; then the unit coal transport volume after passing through the coal plow is converted into the material layer height when the coal passes through the coal plow, that is, the height value of the main coal plow plate from the belt surface, and the calculated height value is sent to the main coal plow plate stroke controller; 5) The main controller sends a start command to the electro-hydraulic push rod 2. When the electro-hydraulic push rod 2 starts and reaches the specified position controlled by the main plowing coal plate stroke controller, a feedback signal is sent to the main controller, and the main controller controls the electro-hydraulic push rod 2 to stop moving; 6) The electronic belt scale 2 sends the measured value of the amount of coal after the belt conveyor passes through the coal plow per unit time to the main controller; 7) The main controller compares the coal quantity measurement value sent by the electronic belt scale No. 2 with the set initial value of the unit coal unloading quantity; when the coal quantity measurement value is greater than the set initial value, the electro-hydraulic push rod No. 2 is started for fine-tuning, and at this time the electro-hydraulic push rod No. 2 drives the main coal plow part to press down; conversely, when the coal quantity measurement value is less than the set initial value, the electro-hydraulic push rod No. 2 drives the main coal plow part to lift up; the adjustment is stopped until the coal quantity measurement value is consistent with the initial set value.

Images