A scraper with multiple protection functions

Abstract

The present invention discloses a scraper machine with multiple protection functions in the field of scraper machines, including a scraper machine body, a mounting opening groove is provided on one side wall of the scraper machine body, a mounting plate is provided on the periphery of the mounting opening groove, a avoidance groove corresponding to the mounting opening groove is provided on the mounting plate, and slide rails are provided on one side wall of the mounting plate on both sides of the avoidance groove, and a slider is provided on the slide rail. The present invention can feedback information to an alarm device when a chain is broken, a chain is tilted, a chain is skipped, a hanging plate is loose, or a material is blocked, so that the alarm device sends an alarm message, and at the same time, feedback information to a PLC controller or a single-chip microcomputer, and the conveying motor can be controlled to stop working by the PLC controller or the single-chip microcomputer to protect the motor, and the operation of the scraper machine can be protected in multiple ways, with higher safety, simple and efficient installation process, no need to adjust any parameters, and can be installed on an existing scraper machine, which is extremely practical and easy to promote.

Description

Technical Field

[0001] The invention relates to the field of scraper machines, in particular to a scraper machine with multiple protection functions. Background Art

[0002] The scraper is a transport machine used in feed grain production and processing, coal mining working face, etc. It is mainly used for the storage, production, processing, etc. of feed grain. It can be used for transportation in coal mining working face and mining area chute, and can also be used in coal lane and semi-coal rock lane excavation working face. It can transport upward or downward, and the upward transportation is generally not more than 35 degrees. The downward transportation is generally not more than 25 degrees, and it is actually better not to exceed 20 degrees. However, during the operation of the existing scraper, the protection process is mostly carried out by installing complex instruments such as controllers, data storage, speed sensors, synchronization disks, proximity switches, motors and other circuits. The installation process is complicated, the adjustment is troublesome, and the protection function is relatively single. Therefore, those skilled in the art provide a scraper with multiple protection functions to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide a scraper with multiple protection functions to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A scraper with multiple protection functions comprises a scraper body, a mounting opening groove is provided on one side wall of the scraper body, a mounting plate is arranged around the mounting opening groove, an avoidance groove corresponding to the mounting opening groove is provided on the mounting plate, slide rails are provided on one side wall of the mounting plate at both sides of the avoidance groove, a slider is provided on the slide rail, a travel switch is provided on one side wall of the slider, the moving contact of the travel switch passes through the avoidance groove on the mounting plate and the mounting opening groove on the scraper body, a rotating support seat is provided on one side wall of the travel switch, a support plate is provided on the mounting plate, a lead screw is passed through the middle of the support plate, one end of the lead screw is located inside the rotating support seat and a rotating support disk is provided, an adjusting handle is provided on the other end of the lead screw, and a locking nut is provided on the lead screw at one side of the support plate.

[0006] As a further solution of the present invention: the mounting plate is connected to the scraper body by screws, the slide rail is connected to the scraper body by screws, the slider is connected to the travel switch by screws, and the slider is slidably connected to the slide rail.

[0007] As a further solution of the present invention: the travel switch is slidably connected to the mounting plate through the slider and the slide rail, the support plate and the mounting plate are installed by screws, the lead screw and the support plate are threadedly connected, and the locking nut and the support plate are threadedly connected.

[0008] As a further solution of the present invention: the rotating support seat and the rotating support disk are rotatably connected via a bearing, the rotating support disk and the lead screw are installed via screws, and the lead screw and the rotating support seat are rotatably connected via the rotating support disk.

[0009] As a further solution of the present invention: the adjusting handle is connected to the lead screw via a screw, and a hexagonal adjusting hole is provided at one end of the adjusting handle.

[0010] As a further solution of the present invention: the installation opening groove and the avoidance groove are both rectangular structures, the avoidance groove and the installation opening groove are the same in size, and the lengths of the avoidance groove and the installation opening groove are greater than 60 mm.

[0011] As a further solution of the present invention: the slide rail is a T-shaped structure, and the travel switch is at the same height as the conveying main shaft of the scraper conveyor body.

[0012] As a further solution of the present invention: an alarm is installed on the top of the scraper body by means of screws, and the alarm is electrically connected to the travel switch by means of a wire.

[0013] As a further solution of the present invention: the travel switch is a normally closed switch, and the normally closed contact of the travel switch is electrically connected to a PLC controller or a single chip microcomputer that controls the conveying motor of the scraper conveyor body through a wire.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention can feed back information to the alarm when the chain is broken, tilted, jumped, the hanging plate is loose or blocked, so that the alarm sends out an alarm message, and at the same time feed back information to the PLC controller or the single-chip microcomputer, and the conveying motor can be controlled by the PLC controller or the single-chip microcomputer to stop working and protect the motor. The operation of the scraper conveyor can be protected in multiple ways, and the safety is higher.

[0016] 2. The installation process of the present invention is simple and efficient. It does not need to adjust any parameters and avoids the installation of complex instruments such as controllers, data storage, speed sensors, synchronous disks, proximity switches, motors and other circuits, which reduces damage. The maintenance is convenient and quick, and it is clear at a glance. It has the convenience that other detection methods cannot achieve, is efficient and low-cost, and can be installed on existing scrapers. It is extremely practical and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a top sectional view of the present invention at the travel switch position;

[0019] Figure 3 It is a partial enlarged view of the travel switch part in the present invention;

[0020] Figure 4 It is a connection relationship diagram of the lead screw, support plate, locking nut, rotating support seat and rotating support disk in the present invention.

[0021] In the figure: 1. Scraper body; 2. Travel switch; 3. Mounting opening groove; 4. Mounting plate; 5. Avoidance groove; 6. Slide rail; 7. Slider; 8. Support plate; 9. Lead screw; 10. Rotating support seat; 11. Locking nut; 12. Moving contact; 13. Rotating support plate; 14. Adjustment handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4 In an embodiment of the present invention, a scraper with multiple protection functions includes a scraper body 1, a mounting opening groove 3 is opened on one side wall of the scraper body 1, a mounting plate 4 is arranged outside the mounting opening groove 3, an avoidance groove 5 corresponding to the mounting opening groove 3 is opened on the mounting plate 4, a slide rail 6 is arranged on both sides of the avoidance groove 5 on one side wall of the mounting plate 4, a slider 7 is arranged on the slide rail 6, a travel switch 2 is arranged on one side wall of the slider 7, a moving contact 12 of the travel switch 2 passes through the avoidance groove 5 on the mounting plate 4 and the mounting opening groove 3 on the scraper body 1, a rotating support seat 10 is arranged on one side wall of the travel switch 2, a support plate 8 is arranged on the mounting plate 4, a lead screw 9 is penetrated in the middle of the support plate 8, one end of the lead screw 9 is located inside the rotating support seat 10 and a rotating support disk 13 is arranged, an adjusting handle 14 is arranged on the other end of the lead screw 9, and a locking nut 11 is arranged on the lead screw 9 at one side of the support plate 8.

[0024] Among them, the mounting plate 4 is connected to the scraper body 1 by screws, the slide rail 6 is connected to the scraper body 1 by screws, the slider 7 is connected to the travel switch 2 by screws, and the slider 7 is slidably connected to the slide rail 6. The slide rail 6 and the slider 7 can cooperate to provide guidance for the adjustment of the travel switch 2 so that it starts to move in parallel.

[0025] Among them, the travel switch 2 is slidably connected to the mounting plate 4 through the slider 7 and the slide rail 6, the support plate 8 is installed with screws, the lead screw 9 is threadedly connected to the support plate 8, and the locking nut 11 is threadedly connected to the support plate 8. The lead screw 9 can be rotated, and the threaded drive of the lead screw 9 and the support plate 8 can push the rotating support seat 10 and the position of the travel switch 2 to move to provide power. After the adjustment is completed, the lead screw 9 can be firmly fixed by the locking nut 11 to prevent the position of the travel switch 2 from changing during vibration, thereby improving the stability of protection.

[0026] Among them, the rotating support seat 10 is rotatably connected to the rotating support disk 13 through a bearing, the rotating support disk 13 and the lead screw 9 are installed through screws, and the lead screw 9 and the rotating support seat 10 are rotatably connected through the rotating support disk 13, which can ensure that the lead screw 9 can rotate flexibly inside the rotating support seat 10.

[0027] The adjusting handle 14 is connected to the lead screw 9 by means of screws, and a hexagonal adjusting hole is provided at one end of the adjusting handle 14 , so that the lead screw 9 can be easily rotated by means of the adjusting handle 14 .

[0028] Among them, the installation opening groove and the avoidance groove 5 are both rectangular structures, the avoidance groove 5 and the installation opening groove 3 are the same size, and the length of the avoidance groove 5 and the installation opening groove 3 is greater than 60 mm, which can ensure the adjustment range of the travel switch 2.

[0029] Among them, the slide rail 6 is a T-shaped structure, the travel switch 2 is at the same height as the conveying spindle of the scraper body 1, and an alarm is installed on the top of the scraper body 1 by screws. The alarm is electrically connected to the travel switch 2 through a wire. After the travel switch 2 is touched, information can be fed back to the alarm, so that the alarm sends an alarm message.

[0030] Among them, the travel switch 2 is a normally closed switch. The normally closed contacts of the travel switch 2 are electrically connected to the PLC controller or the single-chip microcomputer that controls the conveying motor of the scraper body 1 through a wire. After the travel switch 2 is touched, information can be fed back to the PLC controller or the single-chip microcomputer. The conveying motor can be controlled to stop working by the PLC controller or the single-chip microcomputer to protect the motor.

[0031] The working principle of the present invention is: when using this scraper machine body 1, first, the screw 9 can be rotated by adjusting the handle 14, and the screw 9 and the support plate 8 are driven by the threads to push the rotating support seat 10 and the position of the travel switch 2 to move to provide power. After the adjustment is completed, the screw 9 can be firmly fixed by the locking nut 11 to prevent the travel switch 2 from changing its position during the vibration process and improve the stability of the protection. After the position adjustment is completed, the scraper machine body 1 is turned on to work. During the operation of the scraper machine body 1, as long as the chain inside the scraper machine body 1 breaks, the chain will inevitably tilt and collide with the moving contact 12 of the travel switch 2 next to it; when the chain is very loose and jumps, the moving contact 12 of the travel switch 2 will also be touched; when the bolts of the scraper wear-resistant rubber are loose or fall off, the rubber block will loosen and extend out, and touch the moving contact 12 of the travel opening; when the scraper machine body When the body 1 is blocked with material, the material accumulates upward from the bottom, and the scraper is moved to touch the moving contact 12 of the travel switch 2. After the moving contact 12 of the travel switch 2 is touched, information can be fed back to the alarm, so that the alarm sends out an alarm message, and at the same time, information is fed back to the PLC controller or the single-chip microcomputer, and the conveying motor can be controlled by the PLC controller or the single-chip microcomputer to stop working and protect the motor. The operation of the scraper body 1 can be protected in multiple ways. It is simple and efficient, and the installation process is simple. There is no need to adjust any parameters, and the installation of complex instruments such as controllers, data storage devices, speed sensors, synchronous disks, proximity switches, motors and other circuits can be avoided to reduce damage. The maintenance is convenient and quick, and it is clear at a glance. It has the convenience that other detection methods cannot achieve, high efficiency and low cost, and can be installed on the existing scraper body 1, which is extremely practical and easy to promote.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A scraper with multiple protection functions, comprising a scraper body (1), characterized in that: A mounting opening groove (3) is provided on one side wall of the scraper body (1), a mounting plate (4) is provided on the periphery of the mounting opening groove (3), an avoidance groove (5) corresponding to the mounting opening groove (3) is provided on the mounting plate (4), a slide rail (6) is provided on one side wall of the mounting plate (4) on both sides of the avoidance groove (5), a slider (7) is provided on the slide rail (6), a travel switch (2) is provided on one side wall of the slider (7), a moving contact (12) of the travel switch (2) passes through the avoidance groove (5) on the mounting plate (4) and the mounting opening groove (3) on the scraper body (1), a rotating support seat (10) is provided on one side wall of the travel switch (2), a supporting plate (8) is provided on the mounting plate (4), a lead screw (9) is passed through the middle of the support plate (8), one end of the lead screw (9) is located inside the rotating support seat (10) and a rotating support plate (13) is provided, and the other end of the lead screw (9) is located inside the rotating support seat (10) and a rotating support plate (13) is provided. An adjusting handle (14) is provided at the end, and a locking nut (11) is provided on the lead screw (9) on one side of the support plate (8); as soon as the chain inside the scraper body (1) breaks, the chain will inevitably tilt and collide with the moving contact (12) of the travel switch (2) next to it; when the chain is very loose and jumps, it will also touch the moving contact (12) of the travel switch (2); when the bolts of the scraper wear-resistant rubber are loose or fall off, the rubber block will loosen and extend out, and touch the moving contact (12) of the travel switch (2) 12); when the scraper body (1) is blocked by material, the material accumulates from the bottom to the top, and the scraper is moved to actuate the movable contact (12) of the travel switch (2). After the movable contact (12) of the travel switch (2) is actuated, information is fed back to the alarm device, so that the alarm device issues an alarm message, and the information is fed back to the PLC controller or the single-chip microcomputer, so that the conveying motor stops working through the PLC controller or the single-chip microcomputer, thereby protecting the motor and protecting the operation of the scraper body (1) in multiple ways; The mounting plate (4) is connected to the scraper body (1) by screws, the slide rail (6) is connected to the scraper body (1) by screws, the slider (7) is connected to the travel switch (2) by screws, and the slider (7) is slidably connected to the slide rail (6); The travel switch (2) is slidably connected to the mounting plate (4) via the slider (7) and the slide rail (6); the support plate (8) is mounted to the mounting plate (4) via screws; the lead screw (9) is threadedly connected to the support plate (8); and the locking nut (11) is threadedly connected to the support plate (8); The rotating support seat (10) and the rotating support plate (13) are rotatably connected via a bearing, the rotating support plate (13) and the lead screw (9) are mounted via screws, and the lead screw (9) and the rotating support seat (10) are rotatably connected via the rotating support plate (13); The adjusting handle (14) is connected to the lead screw (9) via a screw, and a hexagonal adjusting hole is formed at one end of the adjusting handle (14); The installation opening groove (3) and the avoidance groove (5) are both rectangular structures, the avoidance groove (5) and the installation opening groove (3) are of the same size, and the length of the avoidance groove (5) and the installation opening groove (3) is greater than; The slide rail (6) is of a T-shaped structure, and the travel switch (2) is at the same height as the conveying main shaft of the scraper body (1); An alarm is installed on the top of the scraper body (1) by means of screws, and the alarm is electrically connected to the travel switch (2) by means of a wire; The travel switch (2) is a normally closed switch, and the normally closed contact of the travel switch (2) is electrically connected to a PLC controller or a single chip microcomputer or a contactor coil that controls the conveying motor of the scraper body (1) through a wire.

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