阅读说明：本技术 一种用于矿山机械具有高度可调节性能的保护装置 (A protection device that is used for mining machinery to have height-adjustable festival performance ) 是由 朱桂玲 于 2020-10-28 设计创作，主要内容包括：本发明公开了一种用于矿山机械具有高度可调节性能的保护装置,包括万向轮和合页,所述万向轮的上方设置有底座,所述框架的上方设置有门体,所述合页连接与门体的右侧,所述放置箱的右侧安装有格栅,所述安装板的内部设置有螺丝,所述放置箱的上方固定有立柱,所述螺栓的上方设置有活动柱,所述定位孔的上方安装有警示板,所述立柱的左侧设置有台座,所述检测仪的右侧连接有鸣笛,所述格栅的内部安装有风扇,所述检测仪的外部设置有螺柱,且螺柱的下方设置有通孔。该矿山机械保护装置设置有活动柱和格栅,使得具备了高度调节和安全防护的作用,并且设置有风扇,使得具备了除尘的功能,同时设置有检测仪,使得可以进行检测空气。(The invention discloses a protection device with height-adjustable performance for mining machinery, which comprises a universal wheel and a hinge, wherein a base is arranged above the universal wheel, a door body is arranged above a frame and connected with the right side of the door body through the hinge, a grid is arranged on the right side of a placing box, screws are arranged inside a mounting plate, an upright post is fixed above the placing box, a movable post is arranged above the bolts, a warning plate is arranged above a positioning hole, a pedestal is arranged on the left side of the upright post, a whistle is connected on the right side of a detector, a fan is arranged inside the grid, a stud is arranged outside the detector, and a through hole is arranged below the stud. This mining machinery protection device is provided with activity post and grid for the effect that has possessed altitude mixture control and safety protection, and be provided with the fan, make to have possessed the function of removing dust, be provided with the detector simultaneously, make and to detect the air.)

1. A protection device with height-adjustable performance for mining machinery, includes universal wheel (1) and hinge (6), its characterized in that: the universal wheel is characterized in that a base (2) is arranged above the universal wheel (1), a frame (3) is fixed above the base (2), a door body (4) is arranged above the frame (3), a sealing strip (5) is arranged inside the door body (4), a hinge (6) is connected with the right side of the door body (4), a placing box (7) is arranged on the right side of the hinge (6), a grating (8) is installed on the right side of the placing box (7), mounting plates (9) are fixed around the grating (8), screws (10) are arranged inside the mounting plates (9), a stand column (11) is fixed above the placing box (7), a bolt (12) is installed above the stand column (11), a movable column (13) is arranged above the bolt (12), a positioning hole (14) is formed inside the movable column (13), and a warning plate (15) is installed above the positioning hole (14), the left side of stand (11) is provided with pedestal (16), and the top of pedestal (16) is provided with detector (17), the right side of detector (17) is connected with whistle (18), the internally mounted of grid (8) has fan (19), the outside of detector (17) is provided with double-screw bolt (20), and the below of double-screw bolt (20) is provided with through-hole (21).

2. A protection device with height adjustability for mining machinery according to claim 1, characterized by: the placing box (7), the frame (3) and the base (2) are of an integrated structure, and the placing box (7) and the frame (3) are welded.

3. A protection device with height adjustability for mining machinery according to claim 1, characterized by: the door body (4) forms a turnover structure with the placing box (7) through the hinge (6), and the door body (4) is connected with the placing box (7) through the hinge.

4. A protection device with height adjustability for mining machinery according to claim 1, characterized by: grid (8) through the cooperation between mounting panel (9) and screw (10) with place case (7) and constitute detachable construction, and divide equally between mounting panel (9) and distribute in four endpoints of grid (8), and formula structure as an organic whole between mounting panel (9) and grid (8), and grid (8) and place for threaded connection between case (7), constitute fan-shaped form hollow out construction between grid (8) and mounting panel (9) moreover, mounting panel (9) are cladding column structure about between screw (10).

5. A protection device with height adjustability for mining machinery according to claim 1, characterized by: warning board (15) are through activity post (13), constitute elevation structure between locating hole (14) and stand (11), and be threaded connection between activity post (13) and stand (11), and all distribute about the vertical central line equidistance of activity post (13) between locating hole (14), and be embedded connection between locating hole (14) and activity post (13), and the external dimension of locating hole (14) is identical with the internal dimension of activity post (13), and be the welding between warning board (15) and the activity post (13).

6. A protection device with height adjustability for mining machinery according to claim 1, characterized by: detector (17) and whistle (18) pass through the cooperation between double-screw bolt (20) and through-hole (21) and pedestal (16) constitution detachable construction, and be threaded connection between detector (17) and whistle (18) and pedestal (16), and be fixed connection between detector (17) and whistle (18), and the external dimension of detector (17) is identical with the inside dimension of whistle (18), and the vertical center line of detector (17) is parallel to each other with the vertical center line of whistle (18), and the external surface of double-screw bolt (20) and the inside surface of through-hole (21) are laminated each other.

7. A protection device with height adjustability for mining machinery according to claim 1, characterized by further comprising: the device comprises an image shooting module (22), an image processing module (23), a wear detection module (24), a first alarm module (25) and a first control module (26); wherein the content of the first and second substances,

the image shooting module (22) is arranged in the placing box (7) and is used for shooting the parts placed in the placing box (7) to obtain a first image to be detected of the parts;

the image processing module (23) is connected with the image shooting module (22), and is used for receiving a first image to be detected acquired by the image shooting module (22), performing image graying processing and image filtering processing on the first image to be detected to acquire a second image to be detected, performing binarization processing on the second image to be detected to acquire single-pixel edge lines of the second image to be detected, extracting all the single-pixel edge lines in the second image to be detected, and generating a single-pixel edge picture;

the abrasion detection module (24) is connected with the image processing module (23) and is used for receiving the single-pixel edge picture obtained by the image processing module (23), and selecting an intersection point of two adjacent single-pixel edge lines in the single-pixel edge picture as 1 angular point by adopting a self-adaptive threshold value selection method to obtain a plurality of angular points; fitting the linear distance between every two angular points by using a least square method to obtain a fitting value;

the first alarm module (25) is arranged on the placing box (7);

the first control module (26) is connected with the abrasion detection module (24) and the first alarm module (25) respectively, and is used for receiving the fitting value obtained by the abrasion detection module (24), comparing the fitting value with a preset fitting value, and controlling the first alarm module (25) to alarm when the fitting value is determined to be larger than the preset fitting value.

8. A protection device with height adjustability for mining machinery according to claim 1, characterized by further comprising: a second alarm module (27) and a second control module (28); wherein the content of the first and second substances,

the second alarm module (27) is arranged on the placing box (7);

the fan (19) is used for carrying out dust removal treatment on the placing box (7);

the second control module (27) is respectively connected with the second alarm module (28) and the fan (19), and is used for calculating the dust removing force of the fan (19) during dust removing treatment of the placing box (7), judging whether the dust removing force is smaller than a first preset dust removing force or not, and controlling the second alarm module (27) to send out an alarm prompt when the dust removing force is determined to be smaller than the first preset dust removing force;

the calculating of the dust removal force when the fan (19) removes dust from the placing box (7) includes:

calculating the dedusting air volume G when the fan (19) carries out dedusting treatment, as shown in a formula (1):

wherein S is₀Is the sectional area of a dust outlet arranged on one side wall of the placing box (7); p is the atmospheric pressure at which the holding box (7) is located; p is a radical of₀When the fan (19) is subjected to dust removal treatment, air pressure of air enters through an air inlet arranged on the other side wall of the placing box (7); p is a radical of₁Is the air pressure of the air passing through the dust outlet; t is the average temperature of the air passing through the placing tank (7);

calculating the dust removal resistance F of the fan (19) during dust removal treatment according to the dust removal air volume G of the fan (19) during dust removal treatment₀As shown in equation (2):

wherein S is₁The sectional area of the air inlet;

according to the dust removal resistance F when the fan (19) performs dust removal treatment₀And calculating the dust removal force F when the fan (19) performs dust removal treatment on the placing box (7), as shown in formula (3):

F＝F₁-F₀ (3)

wherein, F₁A second predetermined dust-removing force.

Technical Field

The invention relates to the technical field of mining machinery protection devices, in particular to a protection device with height-adjustable performance for mining machinery.

Background

Mining machines are machines directly used for mineral mining, beneficiation, and other operations, including mining machines and mineral separation machines, and with the development of modern science and technology and the high speed of mining industry, mining machines are slowly converted from large machines to small machines with high working efficiency, but in the operation of the machines, many machines are in an exposed state, so that a good device is needed for protecting the exposed machines.

The mining machinery protection device on the existing market exists in the working process, the device does not have the height to be adjusted in a lifting mode, the compatibility is poor, the function of the device is single, only the device can be protected, the air cannot be detected, meanwhile, the safety of the device is poor, danger is easy to occur, the protection effect of the device is poor, and the problem of a dust removal function is solved.

In view of the above problems, it is urgently necessary to innovate on the basis of the original mining machine protection device, and therefore a protection device with height-adjustable performance for a mining machine is proposed.

Disclosure of Invention

The invention aims to provide a protection device with height-adjustable performance for mining machinery, and aims to solve the problems that the existing protection device for the mining machinery on the market in the background art is poor in compatibility due to the fact that the device does not have height lifting adjustment during working and use, the device is single in function, only can protect and cannot detect air, meanwhile, the device is poor in safety, easy to cause danger, poor in protection effect and not provided with a dust removal function. Therefore, the protection device with the height-adjustable performance for the mining machine is designed.

In order to achieve the purpose, the invention provides the following technical scheme: a protection device with height-adjustable performance for mining machinery comprises universal wheels and hinges, wherein a base is arranged above each universal wheel, a frame is fixed above each base, a door body is arranged above each frame, a sealing strip is arranged inside each door body, each hinge is connected with the right side of each door body, a placing box is arranged on the right side of each hinge, a grid is arranged on the right side of each placing box, mounting plates are fixed on the peripheries of the grids, screws are arranged inside the mounting plates, stand columns are fixed above the placing boxes, bolts are arranged above the stand columns, movable columns are arranged above the bolts, positioning holes are formed inside the movable columns, warning plates are arranged above the positioning holes, a pedestal is arranged on the left side of each stand column, a detector is arranged above each pedestal, and a whistle is connected to the right side of the detector, the utility model discloses a detector, including grid, detector, and the inside mounting of grid has the fan, the outside of detector is provided with the double-screw bolt, and the below of double-screw bolt is provided with the through-hole.

Preferably, the placing box, the frame and the base are of an integrated structure, and the placing box and the frame are welded.

Preferably, the door body forms a turnover structure with the placing box through a hinge, and the door body is connected with the placing box through a hinge.

Preferably, the grid passes through the cooperation between mounting panel and the screw and places the case and constitute detachable construction, and equally divide equally between the mounting panel and distribute in four endpoints of grid to formula structure as an organic whole between mounting panel and the grid, the grid and place for threaded connection between the case moreover, constitute fan-shaped hollow out construction between grid and the mounting panel moreover, the mounting panel is cladding column structure about between the screw moreover.

Preferably, the warning board passes through and constitutes elevation structure between activity post, locating hole and the stand, and be threaded connection between activity post and the stand to all distribute about the vertical central line equidistance of activity post between the locating hole, be embedded connection between locating hole and the activity post moreover, the outside dimension of locating hole is identical with the inside dimension of activity post, is the welding moreover between warning board and the activity post.

Preferably, the detector and the whistle pass through the cooperation between double-screw bolt and the through-hole and constitute detachable construction with the pedestal, and be threaded connection between detector and the whistle and the pedestal to be fixed connection between detector and the whistle, the external dimension of detector is identical with the inside dimension of whistle moreover, and the vertical center line of detector is parallel to each other with the vertical center line of whistle moreover, and the external surface of double-screw bolt laminates with the inside surface of through-hole each other.

Preferably, the method further comprises the following steps: the device comprises an image shooting module, an image processing module, a wear detection module, a first alarm module and a first control module; wherein the content of the first and second substances,

the image shooting module is arranged in the placing box and used for shooting the parts placed in the placing box to obtain a first image to be detected of the parts;

the image processing module is connected with the image shooting module and used for receiving a first image to be detected acquired by the image shooting module, performing image graying processing and image filtering processing on the first image to be detected to acquire a second image to be detected, performing binarization processing on the second image to be detected to acquire a single-pixel edge line of the second image to be detected, extracting all the single-pixel edge lines in the second image to be detected and generating a single-pixel edge picture;

the abrasion detection module is connected with the image processing module and used for receiving the single-pixel edge picture acquired by the image processing module, and selecting an intersection point of two adjacent single-pixel edge lines in the single-pixel edge picture as 1 angular point by adopting a self-adaptive threshold value selection method to obtain a plurality of angular points; fitting the linear distance between every two angular points by using a least square method to obtain a fitting value;

the first alarm module is arranged on the placing box;

the first control module is respectively connected with the abrasion detection module and the first alarm module, and is used for receiving the fitting value obtained by the abrasion detection module, comparing the fitting value with a preset fitting value, and controlling the first alarm module to alarm when the fitting value is determined to be larger than the preset fitting value.

Preferably, the method further comprises the following steps: the second alarm module and the second control module; wherein the content of the first and second substances,

the second alarm module is arranged on the placing box;

the fan is used for carrying out dust removal treatment on the placing box;

the second control module is respectively connected with the second alarm module and the fan and used for calculating the dust removal force of the fan during dust removal treatment of the placing box, judging whether the dust removal force is smaller than a first preset dust removal force or not, and controlling the second alarm module to send out an alarm prompt when the dust removal force is determined to be smaller than the first preset dust removal force;

the calculating the dust removing force of the fan when the placing box is subjected to dust removing treatment comprises the following steps:

calculating the dedusting air volume G when the fan carries out dedusting treatment, as shown in a formula (1):

wherein S is₀Is the sectional area of a dust outlet arranged on one side wall of the placing box; p is the atmospheric pressure at the location of the holding box; p is a radical of₀When the fan is subjected to dust removal treatment, air pressure of air enters through an air inlet formed in the other side wall of the placing box; p is a radical of₁Is the air pressure of the air passing through the dust outlet; t is the average temperature of the air passing through the holding tank;

calculating dust removal resistance F of the fan during dust removal treatment according to the dust removal air volume G of the fan during dust removal treatment₀As shown in equation (2):

wherein S is₁The sectional area of the air inlet;

according to the dust removal resistance F when the fan performs dust removal treatment₀And calculating the dust removal force F when the fan removes dust for the placing box, wherein the dust removal force F is shown as a formula:

F＝F₁-F₀ (3)

wherein, F₁A second predetermined dust-removing force.

Compared with the prior art, the invention has the beneficial effects that:

1. this a protection device for mining machinery has height-adjustable ability is provided with movable post, through installing the activity post in the bolt top, is provided with movable post to this device, and the design of activity post has improved the compatibility of this device greatly, and the user can stimulate movable post when using to control the warning board of top and carry out the lift adjustment of height, carry and can increase mechanical protection area through the design of high liftable regulation like this, let more workman can observe.

2. This a protection device for mining machinery has height-adjustable ability is provided with the grid, through installing the grid on placing case right side, be provided with the grid to this device, the design of grid has improved this device security greatly, through being provided with the grid, the inside fan of protection that not only can be fine, make the fan more durable, and can also protect workman's hand, like this the workman is when using, can form a barrier between hand and fan, can effectually prevent that workman's hand is wounded by the fan, and detachable construction's design makes the convenience dismantle the change maintenance.

3. This a protection device for mining machinery has height-adjustable ability is provided with the detector, through installing the detector in the pedestal top, be provided with the detector to this device, the design of detector has improved the practicality of this device greatly, the detector detects for the oxygen content, if when using in this kind of narrow and small space in ore deposit way or mine, the detector can detect the oxygen content in the air, when the oxygen content is thin, steerable whistle is reported to the police, thereby let the workman withdraw, such design provides very big guarantee for workman's life safety

4. This a protection device for mining machinery has height-adjustable festival performance is provided with the fan, through installing the inside fan of the grid in pedestal top, be provided with the fan to this device, the design of fan has improved the functionalization of this device greatly, the user is when using, need place some important precision machinery in the inside of placing the case, rotation through the fan, can play fine play dust removal effect, make the inside of placing the case be in dry and sanitary environment for a long time, and also make more intact that machine part preserved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the grid of the present invention;

FIG. 3 is an exploded view of the detector and the pedestal of the present invention;

FIG. 4 is a schematic front view of the present invention;

FIG. 5 is a schematic side view of the present invention;

fig. 6 is a block diagram of a protection device with height adjustability for a mining machine according to an embodiment of the present invention;

fig. 7 is a block diagram of a protection device with height adjustability for a mining machine according to a further embodiment of the present invention.

In the figure: 1. a universal wheel; 2. a base; 3. a frame; 4. a door body; 5. a sealing strip; 6. a hinge; 7. placing a box; 8. a grid; 9. mounting a plate; 10. a screw; 11. a column; 12. a bolt; 13. a movable post; 14. positioning holes; 15. a warning board; 16. a pedestal; 17. a detector; 18. whistling; 19. a fan; 20. a stud; 21. a through hole; 22. an image capturing module; 23. an image processing module; 24. a wear detection module; 25. a first alarm module; 26. a first control module; 27. a second alarm module; 28. and a second control module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a protection device with height-adjustable performance for mining machinery comprises universal wheels 1 and hinges 6, wherein a base 2 is arranged above the universal wheels 1, a frame 3 is fixed above the base 2, a door body 4 is arranged above the frame 3, a sealing strip 5 is arranged inside the door body 4, the hinges 6 are connected with the right side of the door body 4, a placing box 7 is arranged on the right side of the hinges 6, a grating 8 is arranged on the right side of the placing box 7, mounting plates 9 are fixed on the periphery of the grating 8, the placing box 7, the frame 3 and the base 2 are of an integrated structure, the placing box 7 and the frame 3 are welded, the integrated structure has the advantages of stability and collision resistance, the welding connection enables the placing box 7 and the frame 3 to be matched more stably, the door body 4 forms an overturning structure with the placing box 7 through the hinges 6, and the door body 4 is connected with the placing box 7 through hinges, the turnover structure can enable the door body 4 to be turned over and opened and closed at any angle, the hinged connection design has the advantages of silence and large transmission stroke, the mounting plate 9 is internally provided with screws 10, the upright post 11 is fixed above the placing box 7, the bolts 12 are arranged above the upright post 11, the grating 8 and the placing box 7 form a detachable structure through the matching between the mounting plate 9 and the screws 10, the mounting plate 9 is uniformly distributed at four end points of the grating 8, the mounting plate 9 and the grating 8 are of an integrated structure, the grating 8 and the placing box 7 are in threaded connection, a fan-shaped hollow structure is formed between the grating 8 and the mounting plate 9, the mounting plate 9 is of a cladding structure relative to the screws 10, the grating 8 is arranged on the device, the safety of the device is greatly improved through the design of the grating 8, the internal fan 19 can be well protected through the arrangement of the grating 8, the fan 19 is more durable, the hands of workers can be protected, the warning plate 15 passes through the movable column 13, the positioning holes 14 and the upright column 11 to form a lifting structure, the movable column 13 is in threaded connection with the upright column 11, the positioning holes 14 are distributed at equal intervals about the vertical central line of the movable column 13, the positioning holes 14 are in embedded connection with the movable column 13, the external dimension of the positioning holes 14 is matched with the internal dimension of the movable column 13, the warning plate 15 is welded with the movable column 13, the movable column 13 is arranged on the device, the compatibility of the device is greatly improved due to the design of the movable column 13, when the device is used, a user can pull the movable column 13, so that the lifting adjustment of the height of the warning plate 15 above is controlled, the detector 17 and the whistle 18 form a detachable structure with the pedestal 16 through the matching between the stud 20 and the through hole 21, and be threaded connection between detector 17 and whistle 18 and pedestal 16, and be fixed connection between detector 17 and the whistle 18, and the external dimension of detector 17 is identical with the internal dimension of whistle 18, and the vertical central line of detector 17 is parallel to each other with the vertical central line of whistle 18, and the external surface of double-screw bolt 20 laminates with the internal surface of through-hole 21 each other, be provided with detector 17 to this device, the design of detector 17 has improved the practicality of this device greatly, detector 17 can detect oxygen content in the air, when thin oxygen content, steerable whistle 18 reports to the police.

The working principle is as follows: the protective device with the height-adjustable performance for the mining machine is used in the process that firstly, the device needs to be placed on the stable ground by a user, if an exposed motor or pump is seen, the user pushes the device to enable the universal wheel 1 below the base 2 to rotate, then the frame 3 is placed outside the exposed motor or pump, the exposed motor or pump can be protected through the frame 3, the placing box 7 is arranged, the placing box 7 is used for storing and protecting some precise part machines, when the protective device is used, the user places parts inside the placing box 7, then the door body 4 is turned over and closed through the hinge 6, the sealing strip 5 is sealed and attached to the outside of the placing box 7 after the door body is closed, therefore, the parts are placed, the fan 19 is started after the parts are placed, and the fan 19 rotates, the dust removal device has the advantages that the dust removal effect is good, the inside of the placing box 7 is in a dry and sanitary environment for a long time, mechanical parts are well stored, the grille 8 is arranged outside the fan 19, the fan 19 in the placing box can be well protected by the grille 8, the fan 19 is more durable, the hands of workers can be protected, a barrier can be formed between the hands and the fan 19 when the workers use the dust removal device, the hands of the workers can be effectively prevented from being damaged by the fan 19, if the grille 8 is cleaned, the workers can rotate the screw 10 to separate the screw 10 from the mounting plate 9, then the fan can be detached, meanwhile, the detector 17 is arranged, is used for detecting the oxygen concentration in the air and is in the form of cyh25, and if the air in a mine is lower than a normal value, then can make whistle 18 report to the police, we are connected pedestal 16 and detector 17 through double-screw bolt 20 and through-hole 21, the change of maintaining is conveniently carried out like this, still be provided with warning board 15 in the top of placing case 7, warning board 15 has played the effect of reminding the warning, if when wanting height-adjusting, the user need rotate bolt 12 earlier, make slack, pressing warning board 15, make warning board 15 carry out the oscilaltion in stand 11 through activity post 13, when adjusting suitable position, at rotatory bolt 12, make bolt 12 cooperate with locating hole 14, highly adjustable regulation has been accomplished like this, this is exactly this a protection device's that is used for mining machinery to have height-adjustable ability use flow.

As shown in fig. 6, a protection device with a height-adjustable capability for a mining machine, further includes: the system comprises an image shooting module 22, an image processing module 23, a wear detection module 24, a first alarm module 25 and a first control module 26; wherein the content of the first and second substances,

the image shooting module 22 is arranged in the placing box 7 and is used for shooting the parts placed in the placing box 7 to obtain a first image to be detected of the parts;

the image processing module 23 is connected to the image capturing module 22, and is configured to receive a first image to be detected obtained by the image capturing module 22, perform image graying processing and image filtering processing on the first image to be detected to obtain a second image to be detected, perform binarization processing on the second image to be detected to obtain a single-pixel edge line of the second image to be detected, extract all the single-pixel edge lines in the second image to be detected, and generate a single-pixel edge picture;

the abrasion detection module 24 is connected to the image processing module 23, and is configured to receive the single-pixel edge picture obtained by the image processing module 23, select an intersection of two adjacent single-pixel edge lines in the single-pixel edge picture as 1 corner point by using a self-adaptive threshold selection method, and obtain a plurality of corner points; fitting the linear distance between every two angular points by using a least square method to obtain a fitting value;

the first alarm module 25 is arranged on the placing box 7;

the first control module 26 is connected to the wear detection module 24 and the first alarm module 25, and configured to receive the fitting value obtained by the wear detection module 24, compare the fitting value with a preset fitting value, and control the first alarm module 25 to alarm when it is determined that the fitting value is greater than the preset fitting value.

The working principle of the scheme is as follows: the image shooting module 22 is installed in the placing box 7, the zero device placed in the placing box 7 is shot to obtain a first image to be detected of the zero device, the image processing module 23 performs image graying processing and image filtering processing on the first image to be detected to obtain a second image to be detected, binarization processing is performed on the second image to be detected to obtain a single-pixel edge line of the second image to be detected, all the single-pixel edge lines in the second image to be detected are extracted to generate a single-pixel edge picture, and then the abrasion detection module 24 selects an intersection point of two adjacent single-pixel edge lines in the single-pixel edge picture as 1 angular point by adopting a self-adaptive threshold value selection method to obtain a plurality of angular points; and fitting the linear distance between every two angular points by using a least square method to obtain a fitting value, comparing the fitting value with a preset fitting value by using the first control module 26, and controlling the first alarm module 25 to alarm when the fitting value is determined to be greater than the preset fitting value.

The beneficial effect of above-mentioned scheme: in order to better improve the practicability of the protective device with the height adjustable performance of the mining machine, the image shooting module 22 is arranged in the placing box 7 of the protective device, the parts in the placing box 7 are shot to obtain a first image to be detected of the parts, the first image to be detected is subjected to graying processing and image filtering through the image processing module 23 to eliminate noise in the image to be detected, so that a second image to be detected is clearer, binarization processing is carried out on the second image to be detected to obtain pixel points of edges in the image, and the pixel points are connected to form a single pixel edge line, namely an edge contour line of the parts, all the single pixel edge lines in the image are extracted to form a single pixel edge image, the abrasion detection module 24 adopts a self-adaptive threshold value selection method for the single pixel edge image to select a junction point of two adjacent single pixel edge lines in the single pixel edge image as a corner point, the least square method to the linear distance adoption between per two angular points is fitted, obtains the fitting value, by first control module 25, it makes to be greater than preset fitting value when confirming the fitting value, and the first alarm module of control is reported to the police 26, to keeping in zero device in placing case 7 carries out wearing and tearing and detects, realizes the intellectual detection system to zero device, satisfies the precision requirement to zero device, is convenient for guarantee the accuracy of the data that the user measured when using zero device, also can guarantee the intact degree of replacement zero device simultaneously, reduces the fault rate, avoids reprocessing again, and labour saving and time saving improves user experience.

As shown in fig. 7, a protection device with a height-adjustable capability for a mining machine, further includes: a second alarm module 27, a second control module 28; wherein the content of the first and second substances,

the second alarm module 27 is arranged on the placing box 7;

the fan 19 is used for performing dust removal treatment on the placing box 7;

the second control module 27 is connected to the second alarm module 28 and the fan 19, and configured to calculate a dust removal force when the fan 19 removes dust from the storage box 7, determine whether the dust removal force is smaller than a first preset dust removal force, and control the second alarm module 27 to issue an alarm prompt when it is determined that the dust removal force is smaller than the first preset dust removal force;

the calculating of the dust removing force of the fan 19 in the dust removing process of the placing box 7 includes:

calculating the dust removal air volume G when the fan 19 performs the dust removal processing, as shown in formula (1):

wherein S is₀Is the sectional area of a dust outlet arranged on one side wall of the placing box 7; p is the atmospheric pressure at the location of the holding tank 7; p is a radical of₀When the fan 19 is subjected to dust removal treatment, air pressure of air enters through an air inlet arranged on the other side wall of the placing box 7; p is a radical of₁Is the air pressure of the air passing through the dust outlet; t is the average temperature of the air passing through the holding tank 7;

calculating the dust removal resistance F of the fan 19 during the dust removal process according to the dust removal air volume G of the fan 19 during the dust removal process₀As shown in equation (2):

wherein S is₁The sectional area of the air inlet;

according to the dust removal resistance F when the fan 19 performs dust removal treatment₀And calculating the dust removal force F when the fan 19 removes dust from the placing box 7, as shown in formula 3:

F＝F₁-F₀ (3)

wherein, F₁A second predetermined dust-removing force.

The working principle of the scheme is as follows: the second control module is arranged in the placing box and is respectively connected with the second alarm module and the fan, the dust removing force of the fan when the placing box is subjected to dust removing treatment is calculated according to the second dust removing resistance and the dust removing resistance of the fan when the placing box is subjected to dust removing treatment, whether the dust removing force is smaller than a first preset dust removing force or not is judged, and the second alarm module is controlled to give an alarm prompt when the dust removing force is determined to be smaller than the first preset dust removing force. The second dust removing force is obtained according to the rated power of the fan; the first dust removal force is the dust removal force which influences the sudden change of the dust removal efficiency and is measured by a plurality of tests, namely when the actual dust removal force of the fan is smaller than the first dust removal force, the dust removal efficiency is suddenly reduced; the second dust removing force is greater than the first dust removing force.

The beneficial effect of above-mentioned scheme: in order to make the fan 19 have a better dust removing effect and keep the inside of the placing box 7 in a dry and sanitary environment for a long time, the dust removing force of the fan 19 during the dust removing treatment of the placing box 7 needs to be calculated, the dust removing resistance needs to be calculated first, when the dust removing resistance is calculated, the sectional area of the dust outlet arranged on one side wall of the placing box 7, the atmospheric pressure of the position where the placing box 7 is located, when the fan 19 performs the dust removing treatment, the air pressure of the air entering through the air inlet arranged on the other side wall of the placing box 7, the air pressure of the air passing through the dust outlet, the average temperature of the air passing through the placing box 7, the sectional area of the air inlet and other factors need to be considered, so that the dust removing resistance during the dust removing treatment of the placing box 7 by the fan 19 is more accurate, and then the dust removing resistance is reduced by the second preset dust removing force, obtain the fan 19 is right place the dust removal power when placing case 7 and removing dust and handle, second control module is confirming when dust removal power is less than first predetermined dust removal power, control second alarm module 27 sends the warning suggestion, reminds the staff in time to inspect, is convenient for guarantee the dust collection efficiency of fan makes place the inside of case 7 and be in dry sanitary environment for a long time, and spare part conservatism is more intact, increases user's experience effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.