A support seat for the complete machine linkage of a coal mining machine

Abstract

The present invention belongs to the field of assembly and debugging technology, and in particular relates to a support seat for the entire coal mining machine, comprising a supporting base, wherein a plurality of connection components mounted on the upper end of the supporting base are fixedly mounted with the coal mining machine, and further comprising: a vibration sensor, a support area expansion mechanism, a plurality of pin anti-slip mechanisms, a ground bearing capacity detection feedback mechanism, a pin quantity control mechanism, a connection status inspection warning mechanism, and a pin quantity replenishment mechanism. The present invention can automatically adjust the support area based on the strength of the ground bearing capacity. The lower the ground bearing capacity, the larger the support area, thereby better dispersing the weight of the coal mining machine, and can automatically adjust the number of anti-slip spikes used based on the ground bearing strength. It can automatically calculate the degree of wear of the connection component based on the vibration intensity during the operation of the coal mining machine, and promptly remind the staff to check the connection status of the connection component after reaching the wear threshold.

Description

Technical Field

[0001] The invention belongs to the technical field of assembly and debugging, and in particular relates to a support seat for the complete machine coupling and debugging of a coal mining machine. Background Art

[0002] The joint adjustment of the coal mining machine refers to the process of jointly debugging the various parts of the coal mining machine. The support seat for the joint adjustment of the coal mining machine is a device that plays a supporting role in the joint adjustment process of the coal mining machine. Its main function is to provide a stable support platform for the coal mining machine to ensure that the coal mining machine can maintain a fixed position and posture during the debugging process. During the joint adjustment, the various components of the coal mining machine need to be precisely debugged, such as the debugging of the cutting part, traction part, height adjustment system, etc. The support seat can prevent the coal mining machine from shaking, displacement, etc. during the debugging process, thereby ensuring the accuracy of the debugging work, such as a coal mining machine joint adjustment support seat proposed in the patent announcement number CN207414732U.

[0003] The operating environment of the coal mining machine is complex and diverse, so the ground conditions of the support seat are also complex, and the bearing capacity of the ground at each location is different. For relatively solid ground, it can withstand greater pressure, and the bottom support area of ​​the support seat can be set relatively small, so as to avoid the inconvenience caused by the bottom support area of ​​the support seat being too large during the debugging process. For relatively soft ground, its bearing capacity is poor, and a larger support area is required to disperse the weight of the coal mining machine to avoid ground collapse, which will affect the stable operation of the overall joint debugging of the coal mining machine. However, the bottom support area of ​​the support seat is currently fixed and cannot be automatically adjusted according to actual conditions, which will affect the stable support work of the support seat and make the support seat unable to achieve the best use effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a support seat for the whole machine linkage of a coal mining machine in order to solve the above problems.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solutions: a support base for a complete coal mining machine, comprising a supporting base, a plurality of connection components for mounting on the coal mining machine being fixedly mounted on the upper end of the supporting base, and further comprising:

[0006] Vibration sensor, installed on the coal mining machine;

[0007] A support area expansion mechanism is mounted on the supporting base;

[0008] A plurality of pin anti-slip mechanisms are fixedly mounted on the upper end of the supporting base;

[0009] A ground bearing capacity detection and feedback mechanism is installed outside one of the nail anti-slip mechanisms;

[0010] A nail quantity control mechanism is installed in the ground bearing capacity detection feedback mechanism;

[0011] A connection status check warning mechanism is mounted on the supporting base and is electrically connected to the vibration sensor;

[0012] The pin quantity replenishing mechanism is mounted on the connection status checking and warning mechanism and is in transmission connection with the connection status checking and warning mechanism.

[0013] In the above-mentioned support seat for the entire coal mining machine, the support area expansion mechanism includes a plurality of electric push rods symmetrically fixedly inserted into the side walls of the supporting base, and the movable ends of the plurality of electric push rods on the same side are fixedly connected to the same expansion plate, and the upper end of the expansion plate is fixedly connected to a plurality of reinforcing rods at equal distances, and the upper end of the supporting base is fixedly provided with a plurality of reinforcing frames movably connected to the reinforcing rods.

[0014] In the above-mentioned coal mining machine complete machine linkage support seat, the pin anti-slip mechanism includes an anti-slip pin that is movably inserted into the upper end of the supporting base, and the upper end of the anti-slip pin is fixedly connected to a pressure plate. The upper end of the supporting base is fixedly provided with a U-shaped fixing plate arranged outside the pressure plate, and the upper end of the pressure plate is fixedly provided with a force-bearing permanent magnet plate, and the lower end of the horizontal part of the U-shaped fixing plate is fixedly provided with a force-bearing electromagnetic plate arranged opposite to the force-bearing permanent magnet plate.

[0015] In the above-mentioned coal mining machine whole-machine linkage support seat, the ground bearing capacity detection feedback mechanism includes a detection shell fixedly connected to the outer side of the vertical part of one of the U-shaped fixing plates, the detection shell is set to an open structure on the side facing the U-shaped fixing plate, the inner wall of the detection shell is fixedly connected to a plurality of limit slide bars arranged side by side, and the plurality of limit slide bars are externally slidably sleeved with the same lifting plate, the lower side of the lifting plate is fixedly provided with a suction permanent magnetic plate, the bottom of the inner wall of the detection shell is fixedly provided with a suction electromagnetic plate arranged opposite to the suction permanent magnetic plate, the upper end of the lifting plate and the top of the inner wall of the detection shell are fixedly provided There are multiple pull-up springs sleeved on the outside of the limit slide bar, a linear motor is fixedly sleeved on one side of the lifting plate, and the moving end of the linear motor is fixedly connected to the in-place switch. The side wall of the U-shaped fixed plate is provided with a strip opening for the in-place switch to extend through, and the side of the lifting plate away from the in-place switch is fixedly connected with a synchronous switch. A synchronous screw arranged parallel to the limit slide bar is also rotatably connected in the detection shell, and a synchronous motor for driving the synchronous screw to rotate is fixedly installed on the outer wall of the detection shell, and a synchronous plate is threadedly sleeved on the rod wall of the synchronous screw, and the synchronous plate is arranged corresponding to the position of the synchronous switch.

[0016] In the above-mentioned coal mining machine complete machine linkage support seat, the pin quantity control mechanism includes a control circular shell fixedly connected to one side of the synchronization plate, a transmission shaft is rotatably connected at the center of the inner wall of the control circular shell, a counting switch is fixedly installed on one side of the inner wall of the control circular shell, and an arc-shaped trigger block corresponding to the position of the counting switch is fixedly connected to the shaft wall of the transmission shaft. One end of the transmission shaft extends through the outside of the control circular shell and is fixedly connected to a transmission gear, and a transmission rack meshing with the transmission gear is fixedly installed on one side of the inner wall of the detection shell.

[0017] In the above-mentioned coal mining machine complete machine linkage support seat, the connection status inspection warning mechanism includes a warning shell, the inner wall of the warning shell is rotatably connected to a rotating screw, the outer wall of the warning shell is fixedly provided with a servo motor for driving the rotating screw to rotate, the rod wall of the rotating screw is threadedly sleeved with a pressing plate, a warning switch arranged opposite to the pressing plate is fixedly provided on one side of the inner wall of the warning shell, and an alarm is fixedly provided on the outer wall of the warning shell.

[0018] In the above-mentioned coal mining machine complete machine linkage support seat, the pin quantity replenishing mechanism includes a speed-increasing gear box fixedly mounted on the outer wall of the warning shell, one end of the rotating screw extends through the warning shell and is fixedly connected to the input end of the speed-increasing gear box, the output end of the speed-increasing gear box is fixedly connected to a cam, the outer wall of the warning shell is fixedly mounted with an air supply shell located at the upper end of the cam, the outer wall of the warning shell is also fixedly mounted with a replenishing shell, the sealing sleeve in the air supply shell is provided with an air supply piston, the lower end of the air supply piston is fixedly connected to a plurality of push-pull rods, the lower ends of the plurality of push-pull rods pass through the lower end of the air supply shell, and are fixedly connected to the same push-pull plate, a plurality of return springs sleeved on the outside of the push-pull rods are fixedly connected between the push-pull plate and the air supply shell, the supply The upper end of the gas shell and the replenishing shell are connected by an air supply pipe. The upper end of the air supply shell is also fixedly connected to an air replenishing pipe. Both the air supply pipe and the air replenishing pipe are equipped with a one-way valve. The replenishing shell is fixedly connected to a small-diameter exhaust pipe on the side corresponding to the air supply pipe. A movable piston is provided in the sealing sleeve of the replenishing shell. The side of the movable piston away from the air supply pipe is fixedly connected to a U-shaped linkage rod. The end of the U-shaped linkage rod away from the movable piston passes through the rear end of the replenishing shell and is fixedly connected to an extrusion round head. The lower end of the replenishing shell is fixedly equipped with a plurality of control switches arranged side by side and corresponding to the position of the extrusion round head. The movable piston and the replenishing shell are fixedly connected on the opposite side with a pressure spring sleeved on the outside of the U-shaped linkage rod. The rear end side wall of the replenishing shell is provided with an air leakage port.

[0019] In the above-mentioned coal mining machine complete machine linkage support seat, the outer wall of the synchronization plate is fixedly connected to the limit slider, and the inner wall of the detection shell is provided with a limit sliding groove that matches and slides with the limit slider.

[0020] Compared with the existing technology, the beneficial effects of the present invention are:

[0021] 1. Through the support area expansion mechanism and ground bearing capacity detection feedback mechanism, the bearing strength of the installation ground can be automatically detected before use, and the support area can be automatically adjusted based on the strength of the ground bearing capacity. The lower the ground bearing capacity, the larger the support area, which can better disperse the weight of the coal mining machine and avoid ground collapse. At the same time, it also avoids the problem of inconvenience in the debugging process caused by an excessively large support area that exceeds the use requirements.

[0022] 2. The anti-slip mechanism and the number of nails control mechanism are set up, so that the support seat can have excellent anti-slip performance, ensuring the stable operation of the coal mining machine during the joint debugging process, and can automatically adjust the number of anti-slip nails used based on the ground bearing strength. The lower the ground bearing strength, the more anti-slip nails are used, because the lower the ground bearing strength, the smaller the friction between the anti-slip nails and the supporting base. In order to prevent the support seat from sliding, more anti-slip nails are used to increase the degree of engagement between the supporting base and the ground, thereby providing sufficient anti-slip force. On the contrary, when the ground bearing strength is large, the friction and shear strength of the ground itself are higher, and the anti-slip nails play a more auxiliary fixation role. Fewer anti-slip nails can meet the use requirements, avoiding the problem of too many anti-slip nails making it difficult to pull out the anti-slip nails, and facilitating subsequent use.

[0023] 3. Through the connection status inspection and warning mechanism set up, the wear degree of the connection components can be automatically calculated based on the vibration intensity of the coal mining machine during operation, and the staff can be reminded in time to detect the connection status of the connection components after the wear threshold is reached. This can not only avoid the problem of excessive wear affecting the stable fixation of the coal mining machine, but also avoid the problem of excessive deformation of the connection components due to vibration wear, which will cause a great impact on the subsequent disassembly and assembly of the coal mining machine. The connection components can be replaced in time to facilitate subsequent operation and processing.

[0024] 4. By setting up a nail quantity supplement mechanism, the number of anti-slip nails used can be further supplemented based on the vibration force generated during the coal mining machine joint debugging process. The greater the vibration force, the more anti-slip nails are supplemented, avoiding the problem that the additional vibration force will further affect the support stability of the support seat, so that the anti-slip stability of the support seat is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the support area expansion mechanism of the present invention;

[0027] Figure 3It is a schematic cross-sectional view of the nail anti-slip mechanism of the present invention;

[0028] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the middle pressure plate;

[0029] Figure 5 It is a schematic cross-sectional view of the ground bearing capacity detection and feedback mechanism of the present invention;

[0030] Figure 6 It is a schematic cross-sectional view of the pin quantity control mechanism of the present invention;

[0031] Figure 7 It is a schematic cross-sectional view of the connection status check warning mechanism of the present invention;

[0032] Figure 8 It is a schematic cross-sectional view of the pin quantity replenishing mechanism of the present invention.

[0033] In the figure: 1 supporting base, 2 supporting area expansion mechanism, 21 electric push rod, 22 expansion plate, 23 reinforcement rod, 24 reinforcement frame, 3 nail anti-slip mechanism, 31 anti-slip nail, 32 pressure plate, 33 U-shaped fixing plate, 34 force permanent magnet plate, 35 force electromagnetic plate, 4 ground bearing capacity detection feedback mechanism, 41 detection shell, 42 limit slide bar, 43 lifting plate, 44 suction permanent magnet plate, 45 suction electromagnetic plate, 46 pull-up spring, 47 linear motor, 48 in-position switch, 49 synchronous switch, 410 synchronous screw, 411 synchronous motor, 412 synchronous plate, 5 nail quantity control mechanism, 51 control round shell, 52 transmission shaft, 53 counting switch, 54 arc-shaped trigger block, 55 transmission gear, 56 transmission rack, 6 connection status check warning mechanism, 61 warning shell, 62 rotating screw, 63 servo motor, 64 pressing plate, 65 warning switch, 66 alarm, 7 nail quantity replenishing mechanism, 71 speed increasing gear box, 72 cam, 73 air supply shell, 74 replenishing shell, 75 air supply piston, 76 push-pull rod, 77 push-pull plate, 78 return spring, 79 air supply pipe, 710 air supply pipe, 711 small diameter exhaust pipe, 712 moving piston, 713 U-shaped linkage rod, 714 extrusion round head, 715 control switch, 716 pressure spring, 717 air leakage port, 8 connecting component, 9 vibration sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figures 1-8As shown, a support base for a coal mining machine is provided, comprising a supporting base 1, a plurality of connecting components 8 for installation with the coal mining machine are fixedly mounted on the upper end of the supporting base 1, and further comprising:

[0036] A vibration sensor 9 is mounted on the coal mining machine;

[0037] The support area expansion mechanism 2 is installed on the supporting base 1. The support area expansion mechanism 2 includes multiple electric push rods 21 symmetrically fixedly inserted into the side wall of the supporting base 1. The moving ends of the multiple electric push rods 21 on the same side are fixedly connected to the same expansion plate 22. The upper end of the expansion plate 22 is equidistantly fixedly connected to multiple reinforcing rods 23. The upper end of the supporting base 1 is fixedly provided with multiple reinforcing frames 24 movably connected to the reinforcing rods 23, which can automatically adjust the bottom support area of ​​the support seat. On the premise of ensuring the support strength, it can also avoid the problem of excessive support area affecting the debugging work of the support seat.

[0038] A plurality of anti-slip mechanisms 3 are fixedly installed on the upper end of the supporting base 1. The anti-slip mechanisms 3 include anti-slip nails 31 that are movably inserted into the upper end of the supporting base 1. The upper ends of the anti-slip nails 31 are fixedly connected to the pressure plates 32. The upper end of the supporting base 1 is fixedly installed with a U-shaped fixing plate 33 arranged outside the pressure plate 32. The upper end of the pressure plate 32 is fixedly installed with a force-bearing permanent magnet plate 34. The lower end of the horizontal part of the U-shaped fixing plate 33 is fixedly installed with a force-bearing electromagnetic plate 35 that is arranged opposite to the force-bearing permanent magnet plate 34. This can make the anti-slip stability of the entire support seat better, and can determine the number of anti-slip nails 31 to be used based on the bearing strength of the ground. On the premise of ensuring anti-slip stability, it can avoid the difficulty of subsequent removal caused by too many anti-slip nails 31 being inserted.

[0039] The ground bearing capacity detection feedback mechanism 4 is installed outside one of the nail anti-slip mechanisms 3. The ground bearing capacity detection feedback mechanism 4 includes a detection shell 41 fixedly connected to the outside of the vertical part of one of the U-shaped fixing plates 33. The side of the detection shell 41 facing the U-shaped fixing plate 33 is set as an open structure. The inner wall of the detection shell 41 is fixedly connected to multiple limit slides 42 arranged side by side. The multiple limit slides 42 are slidably sleeved with the same lifting plate 43. The lower side of the lifting plate 43 is fixedly provided with a suction permanent magnet plate 44. The bottom of the inner wall of the detection shell 41 is fixedly provided with an suction electromagnetic plate 45 arranged opposite to the suction permanent magnet plate 44. The upper end of the lifting plate 43 and the top of the inner wall of the detection shell 41 are fixedly provided with multiple pull-up springs 46 sleeved outside the limit slide 42. A linear motor is fixedly sleeved on one side of the lifting plate 43 47. The moving end of the linear motor 47 is fixedly connected with an in-position switch 48. The side wall of the U-shaped fixed plate 33 is provided with a strip opening for the in-position switch 48 to extend through. The side of the lifting plate 43 away from the in-position switch 48 is fixedly connected with a synchronization switch 49. The detection shell 41 is also rotatably connected with a synchronization screw 410 arranged parallel to the limit slide 42. The outer wall of the detection shell 41 is fixedly provided with a synchronization motor 411 for driving the synchronization screw 410 to rotate. The rod wall of the synchronization screw 410 is threadedly sleeved with a synchronization plate 412. The synchronization plate 412 is arranged corresponding to the position of the synchronization switch 49. The outer wall of the synchronization plate 412 is fixedly connected with the limit slider. The inner wall of the detection shell 41 is provided with a limit slide groove that slides with the limit slider, which can pre-test the ground bearing strength during the anti-slip nail insertion process.

[0040] The nail quantity control mechanism 5 is installed in the ground bearing capacity detection feedback mechanism 4. The nail quantity control mechanism 5 includes a control circular shell 51 fixedly connected to one side of the synchronization plate 412. A transmission shaft 52 is rotatably connected to the center of the inner wall of the control circular shell 51. A counting switch 53 is fixedly installed on one side of the inner wall of the control circular shell 51. The shaft wall of the transmission shaft 52 is fixedly connected to an arc-shaped trigger block 54 corresponding to the position of the counting switch 53. One end of the transmission shaft 52 extends through the outside of the control circular shell 51 and is fixedly connected to a transmission gear 55. A transmission rack 56 meshing with the transmission gear 55 is fixedly installed on one side of the inner wall of the detection shell 41.

[0041] The connection status inspection warning mechanism 6 is installed on the supporting base 1 and is electrically connected to the vibration sensor 9. The connection status inspection warning mechanism 6 includes a warning shell 61. The inner wall of the warning shell 61 is rotatably connected to a rotating screw 62. The outer wall of the warning shell 61 is fixedly provided with a servo motor 63 for driving the rotating screw 62 to rotate. The rod wall of the rotating screw 62 is threadedly sleeved with a pressing plate 64. A warning switch 65 arranged opposite to the pressing plate 64 is fixedly provided on one side of the inner wall of the warning shell 61. An alarm 66 is fixedly provided on the outer wall of the warning shell 61, which can automatically calculate the degree of wear of the connecting component 8 based on the vibration intensity during the operation of the coal mining machine, and promptly remind the staff to detect the connection status of the connecting component 8 after reaching the wear threshold.

[0042] The number of nails replenishing mechanism 7 is installed on the connection status inspection warning mechanism 6 and is transmission-connected with the connection status inspection warning mechanism 6. The number of nails replenishing mechanism 7 includes a speed-increasing gearbox 71 fixedly installed on the outer wall of the warning shell 61. One end of the rotating screw 62 extends through the warning shell 61 and is fixedly connected to the input end of the speed-increasing gearbox 71. The output end of the speed-increasing gearbox 71 is fixedly connected to a cam 72. The outer wall of the warning shell 61 is fixedly provided with an air supply shell 73 located at the upper end of the cam 72. The outer wall of the warning shell 61 is also fixedly provided with a A replenishing shell 74 is provided, and a sealing sleeve is provided in the air supply shell 73 with an air supply piston 75. The lower end of the air supply piston 75 is fixedly connected to multiple push-pull rods 76. The lower ends of the multiple push-pull rods 76 pass through the lower end of the air supply shell 73 and are fixedly connected to the same push-pull plate 77. A plurality of return springs 78 sleeved on the outside of the push-pull rods 76 are fixedly connected between the push-pull plate 77 and the air supply shell 73. The upper end of the air supply shell 73 and the replenishing shell 74 are connected through an air supply pipe 79. The upper end of the air supply shell 73 is also fixedly connected to an air replenishing pipe 710. The air supply pipe 79 and the air replenishing pipe A one-way valve is installed on each tube 710. A small-diameter exhaust pipe 711 is fixedly connected to the side of the replenishing shell 74 corresponding to the air supply pipe 79. A movable piston 712 is fixedly connected to the sealing sleeve in the replenishing shell 74. A U-shaped linkage rod 713 is fixedly connected to the side of the movable piston 712 away from the air supply pipe 79. The end of the U-shaped linkage rod 713 away from the movable piston 712 extends through the rear end of the replenishing shell 74 and is fixedly connected to an extrusion round head 714. A plurality of side-by-side arrangements and corresponding positions of the extrusion round heads 714 are fixedly installed at the lower end of the replenishing shell 74. The regulating switch 715, the movable piston 712 and the opposite side of the replenishing shell 74 are fixedly connected with a pressure spring 716 mounted outside the U-shaped linkage rod 713, and the rear end side wall of the replenishing shell 74 is provided with an air leakage port 717, which can further supplement the number of anti-slip spikes 31 used based on the vibration force generated during the joint adjustment of the coal mining machine. The greater the vibration force, the more anti-slip spikes 31 are supplemented, thereby avoiding the problem that the additional vibration force will further affect the support stability of the support seat, thereby improving the anti-slip stability of the support seat.

[0043] A PLC controller (not shown in the figure) is also installed on the supporting base 1, and the PLC controller is electrically connected to the support area expansion mechanism 2, the nail anti-slip mechanism 3, the ground bearing capacity detection feedback mechanism 4, the nail quantity control mechanism 5, the connection status inspection warning mechanism 6 and the nail quantity replenishment mechanism 7.

[0044] The operating principle of the present invention is described as follows: first, the supporting base 1 is placed in the designated installation position, and the coal mining machine is stably supported and fixed through the connecting component 8, so that the coal mining machine can perform stable joint adjustment work. Before the joint adjustment starts, the PLC controller first controls the power supply equipment to supply a standard power supply current to the force electromagnetic plate 35 in the nail anti-slip mechanism 3 where the ground bearing capacity detection feedback mechanism 4 is located. The force electromagnetic plate 35 is energized to generate the same magnetism as the force-bearing permanent magnet plate 34, and then provides an extrusion thrust to the pressure plate 32, so that the pressure plate 32 drives the anti-slip nail 31 to be nailed into the ground. Specifically, the smaller the ground bearing strength, the deeper the anti-slip nail 31 can be nailed into the ground under the fixed magnetic thrust, thereby making the pressure plate 32 move down a greater distance. At this time, the PLC controller controls the linear motor 47 to act, and the linear motor 47 pushes the in-position switch 48 into the inner side of the U-shaped fixed plate 33, so that the in-position switch 48 is pushed into the inner side of the U-shaped fixed plate 33. The switch 48 is located at the lower side of the pressure plate 32, and the PLC controller controls the power supply equipment to cut off the power supply to the suction electromagnetic plate 45, and then drives the lifting plate 43 to move up along the limit slide rod 42 under the action of the upper pull spring 46 until the switch 48 contacts the lower end of the pressure plate 32. Specifically, the lower the bearing strength of the ground, the greater the distance that the pressure plate 32 drives the anti-slip nail 31 to move downward, so that the lifting plate 43 can move relatively upward. The distance is shorter, and the distance between the lifting plate 43 and the synchronization plate 412 is larger. It should be noted that the installation ground of the support seat has been pre-processed, and the entire installation ground is relatively flat. In the installation ground position where limited use is required, its own bearing strength will not change too much due to the constraints of the ground type. Therefore, the bearing strength of the entire installation ground can be fed back by using the nail anti-slip mechanism 3 to detect the bearing strength at one position of the ground.

[0045] At this time, the PLC controller controls the synchronous motor 411 and the electric push rod 21 to move synchronously, and the synchronous motor 411 drives the synchronous screw 410 to rotate, and the synchronous plate 412 is moved by the threaded connection between the synchronous screw 410 and the synchronous plate 412. At this time, the electric push rod 21 pushes the expansion plate 22 to move outward in the opposite direction of the supporting base 1, gradually increasing the bottom support area of ​​the supporting base 1 until the synchronous plate 412 presses on the synchronous switch 49. The PLC controller controls the synchronous motor 411 and the electric push rod 21 to stop moving synchronously. Specifically, the smaller the ground bearing strength is, the greater the distance between the lifting plate 43 and the synchronous plate 412 is, the longer the synchronous motor 411 needs to work to make the synchronous plate 412 press on the synchronous switch 49, thereby causing the electric push rod 21 to drive the expansion plate 22 to move outward a larger distance, so that the bottom support area of ​​the supporting base 1 is larger;

[0046] During the downward movement of the synchronous plate 412, the control shell 51 is driven to move downward synchronously, thereby causing the transmission gear 55 to move relative to the transmission rack 56, and the transmission gear 55 drives the transmission shaft 52 to rotate, and the transmission shaft 52 drives the arc trigger block 54 to rotate in the control shell 51. The arc trigger block 54 will contact the counting switch 53 during the rotation in the control shell 51, and press the counting switch 53 to trigger it. The counting switch 53 will feed back the triggered signal to the PLC controller. Specifically, the lower the ground bearing strength is, the greater the distance between the synchronous plate 412 and the lifting plate 43 is, and the longer the distance the synchronous plate 412 needs to move. The length of the driving gear 55 relative to the driving rack 56 is longer, thereby increasing the moving distance of the driving gear 55 relative to the driving rack 56. This increases the number of times the arc-shaped trigger block 54 presses the counting switch 53. The PLC controller determines the number of groups of the nail anti-slip mechanism 3 that need to be put into use based on the number of times the counting switch 53 is pressed and triggered. The more times the pressing and triggering are performed, the more nail anti-slip mechanisms 3 are used. The PLC controller controls the power supply device to supply a large current to the force electromagnetic plate 35. The force electromagnetic plate 35 cooperates with the force-bearing permanent magnet plate 34 to provide sufficient pressure on the pressure plate 32, thereby ensuring that the anti-slip spikes 31 can be nailed into the ground, thereby providing support for the anti-slip performance of the supporting base 1.

[0047] The vibration sensor 9 monitors in real time whether the coal mining machine generates vibration during the joint debugging process. [The vibration sensor 9 is a device for detecting the vibration characteristics of an object. Based on the principle of electromechanical conversion, it converts mechanical vibration (such as displacement, velocity or acceleration) into an electrical signal. For example, the piezoelectric vibration sensor 9 uses the piezoelectric effect of a piezoelectric crystal. When the piezoelectric crystal is subjected to pressure generated by vibration, an electric charge is generated inside the crystal. These charges are collected by electrodes and converted into a voltage signal, thereby realizing the collection of vibration signals.] When the coal mining machine is debugging the cutting system, vibration is generated due to the start-up of the cutting motor and the rotation of the cutting drum. The existence of the vibration force will cause the connection component 8 at the connection between the coal mining machine and the supporting base 1 to be impacted and collided. This causes deformation and damage to the connecting component 8. When the vibration sensor 9 detects that the coal mining machine has vibration transmission, the PLC controller controls the servo motor 63 to operate. The servo motor 63 drives the rotating screw 62 to rotate. The threaded connection between the rotating screw 62 and the pressing plate 64 causes the pressing plate 64 to move until the pressing plate 64 presses on the warning switch 65. The warning switch 65 controls the alarm 66 to sound, reminding the staff to adjust the use status of the connecting component 8 in time. The greater the vibration force detected by the vibration sensor 9, the more the PLC controller controls the servo motor 63 to operate at a greater power, shortening the interval time of the pressing plate 64 acting on the warning switch 65, making the warning work more timely.

[0048] When the screw 62 rotates, it drives the input end of the speed increasing gear box 71 to rotate synchronously, and then drives the cam 72 to rotate through the speed increasing gear box 71. When the protrusion of the cam 72 presses on the push-pull plate 77, it provides an extrusion force to the push-pull plate 77. The push-pull plate 77 cooperates with the push-pull rod 76 to overcome the elastic force of the return spring 78 to push the air supply piston 75 to move in the air supply shell 73, and the air in the air supply shell 73 is pressed into the replenishment shell 74 through the air supply pipe 79. When the protrusion of the cam 72 leaves the push-pull plate 77, The return spring 78 pushes back the air supply piston 75 to return to its original position, thereby providing a negative pressure suction force in the air supply shell 73. The air supply shell 73 cooperates with the air supply pipe 710 to replenish air from the outside into the air supply shell 73, waiting for the next air supply. A part of the air transported to the replenishing shell 74 will be discharged from the small diameter exhaust pipe 711, and the pressure spring 716 provides pressure to the moving piston 712 to assist the small diameter exhaust pipe 711 in exhausting the air. However, when the vibration transmission force of the coal mining machine is greater, the self-rotating screw 62 at this time The faster the rotation speed, the faster the rotation speed of the cam 72 driven by the speed increasing gear box 71 is, thereby increasing the frequency of the air supply shell 73 supplying air to the replenishing shell 74. The small diameter exhaust pipe 711 cannot discharge the air in time, which will cause the air pressure in the replenishing shell 74 to gradually increase, thereby driving the moving piston 712 to cooperate with the U-shaped linkage rod 713 to overcome the elastic force of the pressure spring 716 to move. As the pressure spring 716 is compressed, the pressure spring 716 will provide greater pressure to assist the small diameter exhaust pipe 711 to exhaust, so that The air pressure in the replenishing shell 74 reaches a stable and balanced state. Of course, the greater the vibration force of the coal mining machine, the faster the air supply speed of the air supply shell 73, and the pressure spring 716 is required to provide a larger pressure compensation force, so that the moving piston 712 drives the U-shaped linkage rod 713 to move a larger distance, so that the extrusion round head 714 at one end of the U-shaped linkage rod 713 will press on the control switch 715 on the further rear side, and the PLC controller will control more pin anti-slip mechanisms 3 to work to ensure the anti-slip stability of the supporting base 1.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A support base for a complete coal mining machine, comprising a supporting base (1), wherein a plurality of connecting components (8) mounted on the coal mining machine are fixedly mounted on the upper end of the supporting base (1), characterized in that: Also includes: A vibration sensor (9) is mounted on the coal mining machine; A support area expansion mechanism (2) is mounted on the supporting base (1); A plurality of pin anti-slip mechanisms (3) are fixedly mounted on the upper end of the supporting base (1); A ground bearing capacity detection feedback mechanism (4) is installed outside one of the nail anti-slip mechanisms (3); A nail quantity control mechanism (5) is installed in the ground bearing capacity detection feedback mechanism (4); A connection status check warning mechanism (6) is mounted on the supporting base (1) and is electrically connected to the vibration sensor (9); A pin quantity replenishing mechanism (7) is mounted on the connection status inspection warning mechanism (6) and is in transmission connection with the connection status inspection warning mechanism (6); The support area expansion mechanism (2) comprises a plurality of electric push rods (21) symmetrically fixedly inserted into the side wall of the support base (1); the movable ends of the plurality of electric push rods (21) on the same side are fixedly connected to the same expansion plate (22); the upper end of the expansion plate (22) is fixedly connected to a plurality of reinforcing rods (23) at equal intervals; and the upper end of the support base (1) is fixedly provided with a plurality of reinforcing frames (24) movably sleeved with the reinforcing rods (23); The pin anti-slip mechanism (3) comprises an anti-slip pin (31) movably inserted into the upper end of the supporting base (1); the upper end of the anti-slip pin (31) is fixedly connected to a pressure plate (32); the upper end of the supporting base (1) is fixedly provided with a U-shaped fixing plate (33) arranged outside the pressure plate (32); the upper end of the pressure plate (32) is fixedly provided with a force-bearing permanent magnetic plate (34); and the lower end of the horizontal portion of the U-shaped fixing plate (33) is fixedly provided with a force-bearing electromagnetic plate (35) arranged opposite to the force-bearing permanent magnetic plate (34); The ground bearing capacity detection feedback mechanism (4) includes a detection shell (41) fixedly connected to the outside of the vertical portion of one of the U-shaped fixing plates (33), the detection shell (41) is set as an open structure on the side facing the U-shaped fixing plate (33), the inner wall of the detection shell (41) is fixedly connected to a plurality of limit slide bars (42) arranged side by side, the plurality of limit slide bars (42) are slidably sleeved on the outside of the same lifting plate (43), the lower side of the lifting plate (43) is fixedly provided with a suction permanent magnetic plate (44), the bottom of the inner wall of the detection shell (41) is fixedly provided with a suction electromagnetic plate (45) arranged opposite to the suction permanent magnetic plate (44), the upper end of the lifting plate (43) and the top of the inner wall of the detection shell (41) are fixedly provided with a plurality of pull-up springs (46) sleeved outside the limit slide bars (42), ), a linear motor (47) is fixedly inserted into one side of the lifting plate (43), and a moving end of the linear motor (47) is fixedly connected to an in-position switch (48). A strip opening for the in-position switch (48) to extend through the side wall of the U-shaped fixed plate (33) is opened, and a synchronous switch (49) is fixedly connected to the side of the lifting plate (43) away from the in-position switch (48). A synchronous screw (410) arranged parallel to the limiting slide rod (42) is also rotatably connected in the detection shell (41), and a synchronous motor (411) for driving the synchronous screw (410) to rotate is fixedly installed on the outer wall of the detection shell (41), and a synchronous plate (412) is threadedly sleeved on the rod wall of the synchronous screw (410), and the synchronous plate (412) is arranged corresponding to the position of the synchronous switch (49).

2. A support seat for the complete coal mining machine according to claim 1, characterized in that: The pin number control mechanism (5) includes a control circular shell (51) fixedly connected to one side of the synchronization plate (412), a transmission shaft (52) rotatably connected to the center of the inner wall of the control circular shell (51), a counting switch (53) fixedly installed on one side of the inner wall of the control circular shell (51), an arc-shaped trigger block (54) corresponding to the position of the counting switch (53) fixedly connected to the shaft wall of the transmission shaft (52), one end of the transmission shaft (52) extends through the outside of the control circular shell (51) and is fixedly connected to a transmission gear (55), and a transmission rack (56) meshing with the transmission gear (55) fixedly installed on one side of the inner wall of the detection shell (41).

3. The supporting seat for the complete coal mining machine according to claim 1, characterized in that: The connection status check warning mechanism (6) comprises a warning shell (61), the inner wall of the warning shell (61) is rotatably connected to a rotating screw (62), the outer wall of the warning shell (61) is fixedly provided with a servo motor (63) for driving the rotating screw (62) to rotate, the rod wall of the rotating screw (62) is threadedly sleeved with a pressing plate (64), a warning switch (65) arranged opposite to the pressing plate (64) is fixedly provided on one side of the inner wall of the warning shell (61), and an alarm (66) is fixedly provided on the outer wall of the warning shell (61).

4. A supporting seat for the complete coal mining machine according to claim 3, characterized in that: The pin quantity replenishing mechanism (7) comprises a speed increasing gear box (71) fixedly mounted on the outer wall of the warning shell (61), one end of the rotating screw (62) extends through the warning shell (61) and is fixedly connected to the input end of the speed increasing gear box (71), the output end of the speed increasing gear box (71) is fixedly connected to a cam (72), the outer wall of the warning shell (61) is fixedly mounted with an air supply shell (73) located at the upper end of the cam (72), and the outer wall of the warning shell (61) is also fixedly mounted with a replenishing shell (73). 4), the sealing sleeve in the air supply shell (73) is provided with an air supply piston (75), the lower end of the air supply piston (75) is fixedly connected to a plurality of push-pull rods (76), the lower ends of the plurality of push-pull rods (76) pass through the lower end of the air supply shell (73), and are fixedly connected to the same push-pull plate (77), a plurality of return springs (78) sleeved on the outside of the push-pull rods (76) are fixedly connected between the push-pull plate (77) and the air supply shell (73), and the upper end of the air supply shell (73) and the replenishing shell (74) are connected by an air supply pipe (7 9) is connected, the upper end of the air supply shell (73) is also fixedly connected to the air supply pipe (710), and the air supply pipe (79) and the air supply pipe (710) are both provided with a one-way valve. The side of the replenishing shell (74) corresponding to the air supply pipe (79) is fixedly connected to a small-diameter exhaust pipe (711), and a sealing sleeve in the replenishing shell (74) is provided with a movable piston (712). The side of the movable piston (712) away from the air supply pipe (79) is fixedly connected to a U-shaped linkage rod (713), and the U-shaped linkage rod (713) is far away. One end of the movable piston (712) extends through the rear end of the replenishing shell (74) and is fixedly connected to an extrusion round head (714). A plurality of control switches (715) arranged side by side and corresponding to the positions of the extrusion round heads (714) are fixedly mounted on the lower end of the replenishing shell (74). A pressure spring (716) sleeved on the outside of a U-shaped linkage rod (713) is fixedly connected to the opposite side of the movable piston (712) and the replenishing shell (74). An air leakage port (717) is provided on the rear end side wall of the replenishing shell (74).

5. The supporting seat for the complete coal mining machine according to claim 1, characterized in that: The outer wall of the synchronization plate (412) is fixedly connected to a limit slider, and the inner wall of the detection shell (41) is provided with a limit sliding groove that matches and slides with the limit slider.

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