A preventive maintenance system for a mechanical and electrical device and its usage method

Abstract

The present application provides a preventive maintenance system for electromechanical equipment and a method for using the same, which relates to the technical field of electromechanical maintenance. The preventive maintenance system for electromechanical equipment includes a column and a control box. A locking assembly is provided between the positioning plate and the fixed seat. A clamping assembly for fixing both sides of the falling control box is provided at the bottom of the fixed seat. The fixed seat is further provided with a limiting assembly for blocking the front side of the falling control box. An alarm assembly capable of automatically alarming when the control box falls is provided on the column. When the control box falls due to the loosening of the screws of the control box caused by the long-term vibration of the electromechanical equipment, the falling control box can be supported and fixed by the provided locking assembly and clamping assembly, avoiding damage caused by direct collision between the falling control box and the electromechanical equipment. After the sliding control box is supported and fixed, the alarm can be automatically triggered to remind the staff that the control box has fallen, so as to be able to perform temporary preventive treatment on the electromechanical equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical maintenance. Specifically, it relates to a preventive maintenance system for electromechanical equipment and its usage method. Background Art

[0002] Electromechanical equipment generally refers to machinery, electrical appliances, and electrical automation equipment. With the continuous improvement of technology, traditional mechanical equipment has entered a new stage of integration of machinery and electricity, and its application scope has been continuously expanded. Since the 1960s, computers have gradually been popularized in scientific research, design, production, and management in the machinery industry, creating conditions for the development of the machinery manufacturing industry towards more complex and precise directions. Electromechanical equipment has also started to develop towards digitalization, automation, intelligence, and flexibility, and has entered a new stage of modern equipment. Preventive maintenance of equipment refers to maintenance carried out according to a pre-specified plan or goal to maintain the specified functions of the system and prevent the degradation of system performance, and is usually also called preventive maintenance.

[0003] In the maintenance management of electromechanical equipment, maintenance management mainly relies on the working cycle of the equipment or the directly observed state. This method often only reacts when the equipment fails, showing a large lag. Currently, on electromechanical equipment such as machine tools in factories, a control box is installed through a column in cooperation with a hoop and screws. When the machine tool equipment vibrates during long-term operation, the screws on the control box will become loose, which is likely to cause the control box to slip off the column and hit the machine tool. If there are no workers around the machine tool, it will not only damage the equipment but also easily lead to accidents. Summary of the Invention

[0004] The purpose of the present invention is to address the problem that when the control box on electromechanical equipment slips from a high place due to loose screws, it is likely to damage the equipment and cause accidents in the absence of personnel.

[0005] To achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0006] A preventive maintenance system for electromechanical equipment, including a column and a control box installed on the column through a hoop. A fixed seat is provided on the outer wall of the column below the control box. A positioning plate is provided at the bottom of the control box. A locking assembly is provided between the positioning plate and the fixed seat. A clamping assembly for fixing both sides of the falling control box is provided at the bottom of the fixed seat. A limiting assembly for blocking the front side of the falling control box is further provided on the clamping assembly. An alarm assembly capable of automatically alarming when the control box falls is provided on the column.

[0007] As a preferred technical solution of the present application, the locking assembly includes fixing blocks arranged on both sides of the top of the fixed seat, slots arranged on both sides of the bottom of the positioning plate and corresponding to the fixing blocks, sliding grooves arranged inside both sides of the positioning plate and communicating with the slots, clamping blocks slidably arranged inside the sliding grooves, and a first spring arranged between the clamping blocks and the inner walls of the sliding grooves. A clamping groove matched with the clamping block is arranged on the side wall of the fixing block.

[0008] As a preferred technical solution of the present application, a bolt is threadedly connected to the side wall of the positioning plate. A pull rope is arranged between the screwing end of the bolt located inside the sliding groove and the clamping block.

[0009] As a preferred technical solution of the present application, the clamping assembly includes support plates symmetrically arranged in pairs on both sides of the bottom of the fixed seat, movable columns movably arranged between the symmetrically arranged support plates in pairs, fixing heads arranged on the tops of the movable columns, and a transmission assembly arranged between the positioning plate and the support plates for driving the two groups of movable columns to flip relative to each other and enabling the fixing heads to clamp the downward sliding control box. A protection box is arranged on the rod wall of the upright column, and movable grooves for the rotation of the movable columns are arranged on both sides of the protection box.

[0010] As a preferred technical solution of the present application, the transmission assembly includes a fixing rod arranged at the bottom of the positioning plate and extending downward through the fixed seat, a toothed plate arranged at the bottom of the fixing rod, a rotating shaft rotatably arranged between the symmetrically arranged support plates in pairs, and a gear arranged on the rod wall of the rotating shaft and meshing with the toothed plate. The movable column is fixedly connected to the rod wall of the rotating shaft. A baffle is arranged on the side wall of the support plate. The fixing rod is slidably connected to the baffle, and a second spring is sleeved on the rod wall of the fixing rod between the baffle and the toothed plate.

[0011] As a preferred technical solution of the present application, the fixing head includes a first arc-shaped clamping head arranged on the top of the movable column, two groups of second arc-shaped clamping heads symmetrically slidably arranged on both sides of the first arc-shaped clamping head, and two groups of third arc-shaped clamping heads symmetrically slidably arranged on both sides of the second arc-shaped clamping heads.

[0012] As a preferred technical solution of the present application, a hanging assembly is further arranged on the top of the upright column. The hanging assembly includes a mounting plate arranged on the top of the upright column, a rotating rod rotatably arranged at the bottom of the mounting plate, a reel sleeved on the rod wall of the rotating rod, a torsion spring sleeved on the rod wall of the rotating rod, and a hanging rope arranged on the reel. One end of the hanging rope away from the reel is threadedly connected to the top of the control box through a threaded head.

[0013] As a preferred technical solution of the present application, the limiting assembly includes a fixed cylinder arranged on the surface of the support plate, a sliding rod slidably arranged inside the fixed cylinder, a third spring arranged between the sliding rod and the fixed cylinder, a bracket arranged at the end of the sliding rod away from the fixed cylinder, and a plurality of cleaning cylinders rotatably arranged on the side wall of the bracket. A moving groove for the telescopic movement of the bracket is arranged on the surface of the protection box.

[0014] As a preferred technical solution of the present application, the alarm component includes a connecting plate provided at the bottom of the protection box, an alarm provided at the top of the connecting plate, a switch provided at the top of the connecting plate and signal-connected to the alarm, and a pressing rod provided at the bottom of the toothed plate and on the same axis as the switch.

[0015] The present invention also discloses a usage method of a preventive maintenance system for electromechanical equipment, including the following steps:

[0016] S1: When the machine tool equipment drives the control box to vibrate for a long time during operation, causing the hoop bolts to loosen, the control box will slide down along the column. When the positioning plate at the bottom of the control box abuts against the fixed seat, the fixed block will be inserted into the slot. At this time, the first spring will squeeze the block into the card slot on the side wall of the fixed block, so as to support and fix the falling control box;

[0017] S2: When the control box slides down due to the loosening of the screws, the positioning plate at its bottom will also drive the fixed rod to slide down. At this time, the fixed rod will drive the rotating shaft and gear on the support plate to rotate through the toothed plate at its bottom, and then be able to drive the movable column on the support plate to turn upwards. When the control box abuts against the fixed seat, the flipped movable column will just drive the fixed head to abut against both sides of the control box, clamping and fixing both sides of the control box;

[0018] S3: When the control box slides down, it will also contact each cleaning cylinder on the bracket. The cleaning cylinder will move outward along the sliding rod toward the outside of the fixed cylinder under the extrusion of the control box. At this time, the cleaning cylinder will roll along the outer wall of the control box. When the control box abuts against the fixed seat, the cleaning cylinder will adhere to the front surface of the control box, which can not only clean the dust on the surface of the control box, but also cooperate with the third spring to squeeze and fix the front side of the control box;

[0019] S4: After the control box slides down, it will pull the lifting rope on the winding reel. At this time, the lifting rope will pull the reel and the rotating rod to rotate. The torsion spring will have a resistance to hinder the rotation of the rotating rod and the reel, so as to pull and buffer the falling control box, so that the control box can slide down slowly and contact the fixed seat;

[0020] S5: After the control box slides down and contacts the fixed seat, the fixed rod and the toothed plate at its bottom will drive the pressing rod to move down and just squeeze the switch on the connecting plate, so as to start the alarm to work and emit an alarm sound to remind the staff that the control box has slipped due to the loosening of the hoop bolts.

[0021] Compared with the prior art, the beneficial effects of the present invention:

[0022] When the machine tool equipment drives the control box to vibrate for a long time during operation, causing the hoop bolts to loosen, the control box will slide down along the column. When the positioning plate at the bottom of the control box abuts against the fixed seat, through the provided locking assembly, when the fixed block is inserted into the slot, at this time, the first spring will squeeze the block into the slot on the side wall of the fixed block, so as to support and fix the falling control box. When it is necessary to disassemble the control box and the fixed seat, through the provided bolts and ropes, the bolts can be first screwed out of the positioning plate, and then the block can be pulled back into the chute through the rope, so as to release the fixed block. At this time, the control box can be pulled out from the fixed seat, which can not only fix the falling control box, but also disassemble the control box and the fixed seat, solving the problem that the control box in the prior art slides down from a high place and collides with the machine tool equipment and is damaged due to loose screws;

[0023] When the control box slides down due to loose screws, through the provided clamping assembly, the positioning plate at the bottom of the control box will also drive the fixed rod to slide down. At this time, the fixed rod will drive the rotating shaft and gear on the support plate to rotate through the toothed plate at its bottom, and then can drive the movable column on the support plate to turn up. When the control box abuts against the fixed seat, the turned-up movable column will just drive the fixed head to abut against both sides of the control box, clamping and fixing both sides of the control box to prevent the control box from falling and being damaged due to loose screws;

[0024] When the control box slides down, it will also contact with each cleaning cylinder on the bracket. The cleaning cylinder will move outward along the sliding rod towards the outside of the fixed cylinder under the extrusion of the control box. At this time, the cleaning cylinder will roll along the outer wall of the control box. When the control box abuts against the fixed seat, the cleaning cylinder will adhere to the front surface of the control box, which can not only clean the dust on the surface of the control box, but also cooperate with the third spring to squeeze and fix the front side of the control box;

[0025] After the control box slides down and contacts the fixed seat, the fixed rod and toothed plate at its bottom will also drive the pressing rod to move down and just squeeze the switch on the connecting plate, so as to start the alarm to work and emit an alarm sound to remind the staff that the control box slides down due to loose hoop bolts. And through the provided suspension assembly, the falling control box will pull the lifting rope wound on the winding reel. At this time, the lifting rope will pull the winding reel and the rotating rod to rotate, and the torsion spring will have a resistance to hinder the rotation of the rotating rod and the winding reel, so as to pull and buffer the falling control box, so that the control box can slide down slowly and contact the fixed seat, avoiding the large impact force caused by the direct fall of the control box and the fixed seat and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structure diagram of the present invention;

[0027] Figure 2 is a three-dimensional rear view structure diagram of the present invention;

[0028] Figure 3Stereo working state structure diagram of the present invention;

[0029] Figure 4 Partial stereo structure diagram of the present invention;

[0030] Figure 5 Partial stereo upward view structure diagram of the present invention;

[0031] Figure 6 Partial stereo sectional structure diagram of the present invention;

[0032] Figure 7 Locking component structure diagram of the present invention;

[0033] Figure 8 Clamping component structure diagram of the present invention;

[0034] Figure 9 Limit component structure diagram of the present invention;

[0035] Figure 10 For the present invention Figure 4 Enlarged structure diagram at position A;

[0036] Figure 11 For the present invention Figure 5 Enlarged structure diagram at position B;

[0037] Figure 12 For the present invention Figure 6 Enlarged structure diagram at position C;

[0038] Figure 13 For the present invention Figure 6 Enlarged structure diagram at position D;

[0039] Figure 14 For the present invention Figure 9 Enlarged structure diagram at position E.

[0040] Labels in the figure:

[0041] 1. Column; 2. Control box; 3. Fixed seat; 301. Fixed block; 302. Card slot; 4. Positioning plate; 401. Slot; 402. Slide groove; 5. Card block; 501. Spring 1; 6. Bolt; 601. Pull rope; 7. Support plate; 701. Baffle; 8. Movable column; 801. Rotating shaft; 802. Gear; 9. Fixed head; 901. Arc-shaped chuck 1; 902. Arc-shaped chuck 2; 903. Arc-shaped chuck 3; 10. Fixed rod; 1001. Spring 2; 11. Tooth plate; 1101. Pressing rod; 12. Mounting plate; 13. Rotating rod; 1301. Torsion spring; 14. Reel; 1401. Suspension rope; 15. Fixed cylinder; 1501. Spring 3; 16. Slide bar; 17. Bracket; 1701. Cleaning cylinder; 18. Protection box; 1801. Connecting plate; 19. Alarm; 1901. Switch. Detailed implementation mode

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention.

[0043] As Figures 1 to 6 shown, this implementation mode proposes a preventive maintenance system for electromechanical equipment, including a column 1 and a control box 2 installed on the column 1 through a hoop. A fixed seat 3 is provided on the outer wall of the column 1 below the control box 2. A positioning plate 4 is provided at the bottom of the control box 2. A locking assembly is provided between the positioning plate 4 and the fixed seat 3. A clamping assembly for fixing both sides of the falling control box 2 is provided at the bottom of the fixed seat 3. A limiting assembly for blocking the front side of the falling control box 2 is further provided on the clamping assembly. An alarm assembly capable of automatically alarming when the control box 2 falls is provided on the column 1.

[0044] When the machine tool equipment drives the control box 2 to vibrate for a long time during operation, causing the hoop screws to loosen, at this time the control box 2 will slide down along the column 1. Through the provided locking assembly, when the sliding control box 2 contacts the fixed seat 3 below the column, the control box 2 and the fixed seat 3 can be locked and fixed, so as to prevent the control box 2 from continuing to fall and hitting the machine tool, causing equipment damage. And when the control box 2 falls, through the provided clamping assembly, when the control box 2 contacts the fixed seat 3, both sides of the control box 2 can be clamped and fixed, further avoiding the control box 2 from falling and hitting the machine tool due to loose screws and causing equipment damage when there is no one around. And after the control box 2 slides down and abuts against the fixed seat 3 and is clamped, the alarm assembly can work to emit an alarm sound to remind the staff that the control box 2 has slipped, facilitating the staff to maintain the control box 2 in a timely manner.

[0045] As Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 12 shown, as a preferred implementation mode, on the basis of the above mode, further, the locking assembly includes fixing blocks 301 provided on both sides of the top of the fixed seat 3, slots 401 provided on both sides of the bottom of the positioning plate 4 corresponding to the fixing blocks 301, chutes 402 provided inside both sides of the positioning plate 4 and communicating with the slots 401, clamping blocks 5 slidably arranged inside the chutes 402, and a first spring 501 provided between the clamping blocks 5 and the inner walls of the chutes 402. A clamping groove 302 matched with the clamping blocks 5 is provided on the side wall of the fixing block 301;

[0046] The side wall of the positioning plate 4 is threadedly connected with a bolt 6, and a pull rope 601 is provided between the screw-in end of the bolt 6 located inside the slide groove 402 and the clamping block 5;

[0047] When the control box 2 slides down and contacts the fixing seat 3 due to the loosening of the screws, the fixing block 301 on the top of the fixing seat 3 will be inserted into the slot 401 at the bottom of the positioning plate 4, and when the fixing block 301 contacts the card block 5, the card block 5 will be squeezed into the slide groove 402 and the spring 1 501 will be compressed. When the positioning plate 4 is completely against the fixing seat 3, the card slot 302 on the side wall of the fixing block 301 will move to a position flush with the card block 5. At this time, the force of the spring 1 501 is released, which will drive the card block 5 to rebound and return to its original position and bounce into the card slot 302 to fix the fixing seat 3. The fixed block 301 is locked, so that the control box 2 and the fixed seat 3 can be quickly fixed, and then the falling control box 2 can be supported and fixed to prevent the control box 2 from colliding with the machine tool and causing damage to the equipment. When the staff needs to disassemble the control box 2 and the fixed seat 3, they only need to unscrew the bolt 6 from the side wall of the positioning plate 4, and then pull the block 5 back into the slide groove 402 through the pull rope 601 and disengage from the slot 302. At this time, the fixed block 301 is loosened, so that the control box 2 and the fixed seat 3 can be quickly disassembled.

[0048] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 10 and Figure 11 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the clamping assembly includes support plates 7 symmetrically arranged on both sides of the bottom of the fixed seat 3, movable columns 8 movably arranged between the two symmetrical support plates 7, fixed heads 9 arranged on the tops of the movable columns 8, and transmission components arranged between the positioning plate 4 and the support plate 7 for driving the two groups of movable columns 8 to flip relative to each other and realizing the fixed head 9 to clamp the downward control box 2, a protective box 18 is provided on the rod wall of the column 1, and movable grooves for rotating the movable columns 8 are provided on both sides of the protective box 18;

[0049] The transmission assembly includes a fixed rod 10 arranged at the bottom of the positioning plate 4 and extending downward through the fixed seat 3, a toothed plate 11 arranged at the bottom of the fixed rod 10, a rotating shaft 801 rotatably arranged between two symmetrical support plates 7, and a gear 802 arranged on the rod wall of the rotating shaft 801 and meshing with the toothed plate 11, the movable column 8 is fixedly connected to the rod wall of the rotating shaft 801, a baffle 701 is arranged on the side wall of the support plate 7, the fixed rod 10 is slidably connected to the baffle 701, and a spring 2 1001 is sleeved on the rod wall of the fixed rod 10 located between the baffle 701 and the toothed plate 11;

[0050] When the control box 2 slides down, it will drive the fixed rod 10 at its bottom to move downward. The fixed rod 10 will drive the rotating shaft 801 provided with the gear 802 to rotate through the toothed plate 11 at its bottom. The rotating shaft 801 will drive the movable column 8 to turn upward. When the control box 2 completely abuts against the fixed seat 3, the movable column 8 will just drive the fixed head 9 at its top to abut against both sides of the control box 2, so as to be able to clamp and fix both sides of the control box 2, further preventing the control box 2 from shaking and displacing. Moreover, when the fixed rod 10 slides down, the compression of the second spring 1001 can also buffer and shock-absorb the falling control box 2 to avoid the control box 2 directly colliding with the fixed seat 3 and being damaged. And when the positioning plate 4 and the fixed seat 3 are disassembled, the pressure on the second spring 1001 is released, thereby driving the control box 2 to bounce upward, further improving the disassembly efficiency of the control box 2 and the fixed seat 3.

[0051] Among them, the fixed head 9 includes an arc-shaped chuck one 901 arranged at the top of the movable column 8, two groups of arc-shaped chucks two 902 symmetrically slidably arranged on both sides of the arc-shaped chuck one 901, and two groups of arc-shaped chucks three 903 symmetrically slidably arranged on both sides of the arc-shaped chuck two 902; when the arc-shaped chuck one 901 approaches the side wall of the control box 2, the arc-shaped chuck three 903 will first contact the side wall of the control box 2, and the arc-shaped chuck three 903 will slide on the inner wall of the arc-shaped chuck two 902, and the arc-shaped chuck two 902 can slide on the inner wall of the arc-shaped chuck one 901. Therefore, the arc-shaped chuck three 903 can stably contact the outer wall of the control box 2, which can not only clamp the control box 2 with a regular surface, but also clamp the irregular control box 2 with an uneven surface, thus improving the adaptability of the equipment.

[0052] As Figure 1 and Figure 3 shown, as a preferred implementation method, on the basis of the above method, further, a suspension assembly is also provided at the top of the column 1. The suspension assembly includes a mounting plate 12 arranged at the top of the column 1, a rotating rod 13 rotatably arranged at the bottom of the mounting plate 12, a reel 14 sleeved on the rod wall of the rotating rod 13, a torsion spring 1301 sleeved on the rod wall of the rotating rod 13, and a lifting rope 1401 arranged on the reel 14. One end of the lifting rope 1401 away from the reel 14 is threadedly connected to the top of the control box 2 through a threaded head;

[0053] When the control box 2 falls, it will pull out the lifting rope 1401 from the reel 14. The lifting rope 1401 will drive the reel 14 and the rotating rod 13 to rotate. At this time, the torsion spring 1301 will be driven to twist and there is a resistance to prevent the rotating rod 13 and the reel 14 from rotating, so as to be able to buffer the falling control box 2 and make the control box 2 buffer and fall, avoiding the control box 2 directly falling and colliding with the fixed seat 3 and causing equipment damage.

[0054] As Figure 1 、 Figure 4 、Figure 6 and Figure 13 As shown in Figure 13 , as a preferred embodiment, on the basis of the above method, further, the alarm component includes a connecting plate 1801 provided at the bottom of the protection box 18, an alarm 19 provided on the top of the connecting plate 1801, a switch 1901 provided on the top of the connecting plate 1801 and signal-connected to the alarm 19, and a pressing rod 1101 provided at the bottom of the toothed plate 11 and on the same axis as the switch 1901;

[0055] After the control box 2 falls and contacts the fixed seat 3 and is fixed due to the loosening of the screws, when the fixing rod 10 slides down, it just drives the pressing rod 1101 at the bottom of the toothed plate 11 at its bottom to squeeze the switch 1901, so as to be able to start the alarm 19 to work and generate an alarm sound, reminding the staff that the control box 2 has slipped, so that the control box 2 can be maintained in time.

[0056] such as Figure 4 、 Figure 9 and Figure 14 As shown in Figure 4 , Figure 9 and Figure 14 , as a preferred embodiment, on the basis of the above method, further, the limiting component includes a fixed cylinder 15 provided on the surface of the support plate 7, a sliding rod 16 slidably arranged inside the fixed cylinder 15, a spring three 1501 arranged between the sliding rod 16 and the fixed cylinder 15, a bracket 17 arranged at one end of the sliding rod 16 away from the fixed cylinder 15, and a plurality of cleaning cylinders 1701 rotatably arranged on the side wall of the bracket 17. A moving groove for the expansion and contraction of the bracket 17 is provided on the surface of the protection box 18;

[0057] When the control box 2 falls and contacts the cleaning cylinder 1701, the cleaning cylinder 1701 will slide outward along the sliding rod 16 toward the outside of the fixed cylinder 15 under the extrusion of the control box 2. At this time, the cleaning cylinder 1701 will roll along the outer wall of the control box 2, which is convenient for wiping and cleaning the outer wall of the control box 2. After the control box 2 is fixed, the cleaning cylinder 1701 is located in front of the control box 2. The spring three 1501 can pull the sliding rod 16 and the cleaning cylinder 1701 to tightly abut against the front surface of the control box 2, so that not only the outer wall of the control box 2 can be cleaned, but also the front side of the control box 2 can be squeezed and fixed, further improving the fixing effect on the falling control box 2.

[0058] The present invention also discloses a use method of a preventive maintenance system for electromechanical equipment, which is characterized in that it includes the following steps:

[0059] S1: When the machine tool equipment drives the control box 2 to vibrate for a long time during operation and causes the hoop screws to loosen, the control box 2 will slide down along the column 1. When the positioning plate 4 at the bottom of the control box 2 abuts against the fixed seat 3, the fixed block 301 will be inserted into the slot 401. At this time, the spring one 501 will squeeze the block 5 into the slot 302 on the side wall of the fixed block 301, so as to be able to support and fix the falling control box 2;

[0060] S2: When the control box 2 slides down due to loose screws, the positioning plate 4 at its bottom will also drive the fixing rod 10 to slide down. At this time, the fixing rod 10 will drive the rotating shaft 801 and the gear 802 on the support plate 7 to rotate through the toothed plate 11 at its bottom, and then be able to drive the movable column 8 on the support plate 7 to flip upward. When the control box 2 abuts against the fixed seat 3, the flipped movable column 8 will exactly drive the fixed head 9 to abut against both sides of the control box 2, clamping and fixing both sides of the control box 2;

[0061] S3: When the control box 2 slides down, it will also contact each cleaning cylinder 1701 on the bracket 17. The cleaning cylinder 1701 will move outward along the fixed cylinder 15 through the sliding rod 16 under the extrusion of the control box 2. At this time, the cleaning cylinder 1701 will roll along the outer wall of the control box 2. When the control box 2 abuts against the fixed seat 3, the cleaning cylinder 1701 will adhere to the front surface of the control box 2, which can not only clean the dust on the surface of the control box 2, but also cooperate with the spring three 1501 to extrude and fix the front side of the control box 2;

[0062] S4: After the control box 2 slides down, it will pull the lifting rope 1401 wound around the winding reel 14. At this time, the lifting rope 1401 will pull the reel 14 and the rotating rod 13 to rotate, and the torsion spring 1301 will have a resistance to hinder the rotation of the rotating rod 13 and the reel 14, so as to be able to pull and buffer the falling control box 2, making the control box 2 slide down slowly and contact the fixed seat 3;

[0063] S5: After the control box 2 slides down and contacts the fixed seat 3, the fixing rod 10 and the toothed plate 11 at its bottom will also drive the pressure rod 1101 to move downward and just squeeze the switch 1901 on the connecting plate 1801, so as to be able to start the alarm 19 to work and emit an alarm sound to remind the staff that the control box 2 has slipped due to the loose hoop screws.

[0064] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although the present specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A preventive maintenance system for a mechanical and electrical device, comprising a column (1) and a control box (2) mounted on the column (1) by a hoop, characterized in that, On the outer wall of the upright column (1) below the control box (2), there is a fixed seat (3). At the bottom of the control box (2), there is a positioning plate (4). Between the positioning plate (4) and the fixed seat (3), there is a locking assembly. At the bottom of the fixed seat (3), there is a clamping assembly for fixing both sides of the falling control box (2). On the clamping assembly, there is also a limiting assembly for blocking the front side of the falling control box (2). On the upright column (1), there is an alarm assembly that can automatically alarm when the control box (2) falls. The locking assembly includes fixed blocks (301) arranged on both sides of the top of the fixed seat (3), slots (401) arranged on both sides of the bottom of the positioning plate (4) corresponding to the fixed blocks (301), chutes (402) arranged inside both sides of the positioning plate (4) and communicating with the slots (401), clamping blocks (5) slidably arranged inside the chutes (402), and a first spring (501) arranged between the clamping blocks (5) and the inner walls of the chutes (402). On the side wall of the fixed block (301), there is a card slot (302) that cooperates with the clamping block (5). On the side wall of the positioning plate (4), there is a bolt (6) threadedly connected. Between the screwing end of the bolt (6) inside the chute (402) and the clamping block (5), there is a pull rope (601). The clamping assembly includes support plates (7) arranged symmetrically in pairs on both sides of the bottom of the fixed seat (3), movable columns (8) movably arranged between the symmetrically arranged support plates (7) in pairs, fixed heads (9) arranged on the tops of the movable columns (8), and a transmission assembly arranged between the positioning plate (4) and the support plates (7) for driving the two groups of movable columns (8) to rotate relatively and enabling the fixed heads (9) to clamp the sliding control box (2). On the rod wall of the upright column (1), there is a protective box (18). On both sides of the protective box (18), there are movable slots for the rotation of the movable columns (8). The transmission assembly includes a fixed rod (10) arranged at the bottom of the positioning plate (4) and extending downward through the fixed seat (3), a toothed plate (11) arranged at the bottom of the fixed rod (10), a rotating shaft (801) rotatably arranged between the symmetrically arranged support plates (7) in pairs, and a gear (802) arranged on the rod wall of the rotating shaft (801) and meshing with the toothed plate (11). The movable column (8) is fixedly connected to the rod wall of the rotating shaft (801). On the side wall of the support plate (7), there is a baffle (701). The fixed rod (10) is slidably connected to the baffle (701). And on the rod wall of the fixed rod (10) between the baffle (701) and the toothed plate (11), there is a second spring (1001) sleeved. The alarm assembly includes a connecting plate (1801) arranged at the bottom of the protective box (18), an alarm (19) arranged on the top of the connecting plate (1801), a switch (1901) arranged on the top of the connecting plate (1801) and signal-connected to the alarm (19), and a pressure rod (1101) arranged at the bottom of the toothed plate (11) and on the same axis as the switch (1901).

2. The preventive maintenance system for an electromechanical device according to claim 1, characterized in that, The fixed head (9) includes an arc-shaped chuck one (901) arranged at the top of the movable column (8), two groups of arc-shaped chucks two (902) symmetrically and slidably arranged on both sides of the arc-shaped chuck one (901), and two groups of arc-shaped chucks three (903) symmetrically and slidably arranged on both sides of the arc-shaped chuck two (902).

3. The preventive maintenance system for a mechanical and electrical equipment according to claim 2, characterized in that, A suspension assembly is further provided at the top of the column (1). The suspension assembly includes a mounting plate (12) arranged at the top of the column (1), a rotating rod (13) rotatably arranged at the bottom of the mounting plate (12), a reel (14) sleeved on the rod wall of the rotating rod (13), a torsion spring (1301) sleeved on the rod wall of the rotating rod (13), and a lifting rope (1401) arranged on the reel (14). One end of the lifting rope (1401) far from the reel (14) is threadedly connected to the top of the control box (2) through a threaded head.

4. The preventive maintenance system for a mechanical and electrical device according to claim 3, characterized in that, The limiting assembly includes a fixed cylinder (15) arranged on the surface of the support plate (7), a sliding rod (16) slidably arranged inside the fixed cylinder (15), a spring three (1501) arranged between the sliding rod (16) and the fixed cylinder (15), a bracket (17) arranged at one end of the sliding rod (16) far from the fixed cylinder (15), and a plurality of cleaning cylinders (1701) rotatably arranged on the side wall of the bracket (17). A moving groove for the telescopic movement of the bracket (17) is provided on the surface of the protective box (18).

5. The usage method of a preventive maintenance system for an electromechanical device according to claim 4, characterized in that, It includes the following steps: S1: When the machine tool equipment drives the control box (2) to vibrate for a long time during operation, causing the hoop screws to loosen, the control box (2) will slide down along the column (1). When the positioning plate (4) at the bottom of the control box (2) abuts against the fixed seat (3), the fixed block (301) will insert into the slot (401). At this time, the spring one (501) will squeeze the block (5) into the card slot (302) on the side wall of the fixed block (301), so as to support and fix the falling control box (2). S2: When the control box (2) slides down due to the loosening of the screws, the positioning plate (4) at its bottom will also drive the fixed rod (10) to slide down. At this time, the fixed rod (10) will drive the rotating shaft (801) and the gear (802) on the support plate (7) to rotate through the toothed plate (11) at its bottom, and then be able to drive the movable column (8) on the support plate (7) to turn upwards. When the control box (2) abuts against the fixed seat (3), the turned movable column (8) will just drive the fixed head (9) to abut against both sides of the control box (2), clamping and fixing both sides of the control box (2). S3: When the control box (2) slides down, it will also contact with each cleaning cylinder (1701) on the bracket (17). The cleaning cylinder (1701) will move outward towards the outside of the fixed cylinder (15) through the sliding rod (16) under the extrusion of the control box (2). At this time, the cleaning cylinder (1701) will roll along the outer wall of the control box (2). When the control box (2) abuts against the fixed seat (3), the cleaning cylinder (1701) will adhere to the front surface of the control box (2), which can not only clean the dust on the surface of the control box (2), but also cooperate with the spring three (1501) to squeeze and fix the front side of the control box (2). S4: After the control box (2) slides down, it will pull the lifting rope (1401) on the winding reel (14). At this time, the lifting rope (1401) will pull the reel (14) and the rotating rod (13) to rotate. The torsion spring (1301) will have a resistance to hinder the rotation of the rotating rod (13) and the reel (14), so as to be able to pull and buffer the falling control box (2), so that the control box (2) can slide down slowly and contact the fixed seat (3); S5: After the control box (2) slides down and contacts the fixed seat (3), the fixed rod (10) and the toothed plate (11) at its bottom will also drive the pressure rod (1101) to move down and just squeeze the switch (1901) on the connecting plate (1801), so as to be able to start the alarm (19) to work and emit an alarm sound to remind the staff that the control box (2) has slipped due to the loosening of the hoop screw.

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