Supporting seat for integral coal mining machine joint adjustment

Abstract

The invention belongs to the technical field of assembling and debugging, and particularly relates to a coal mining machine whole machine linkage adjusting supporting seat which comprises a bearing base, and a plurality of connecting assemblies installed on a coal mining machine are fixedly installed at the upper end of the bearing base. The device further comprises a vibration sensor, a supporting area expanding mechanism, a plurality of plug pin anti-skid mechanisms, a ground bearing capacity detection feedback mechanism, a plug pin number control mechanism, a connection state inspection warning mechanism and a plug pin number supplementing mechanism. The supporting area can be automatically adjusted and controlled on the basis of the strength of the ground bearing capacity, the lower the ground bearing capacity is, the larger the supporting area is, then the weight of the coal mining machine is better dispersed, the number of the used anti-skid nails can be automatically adjusted and controlled on the basis of the ground bearing strength, and the coal mining efficiency is improved. The abrasion degree of the connecting assembly can be automatically calculated based on the vibration intensity in the working process of the coal mining machine, and a worker is reminded to detect the connecting state of the connecting assembly in time after the abrasion threshold value is reached.

Description

Technical Field

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

[0002] The whole-machine joint adjustment of a coal mining machine refers to the process of jointly debugging all parts of the whole coal mining machine, wherein the whole-machine joint adjustment support seat of the coal mining machine is a device that plays a supporting role in the whole-machine joint adjustment process of the coal mining machine. Its main function is to provide a stable support platform for the coal mining machine, ensuring that the coal mining machine can maintain a fixed position and posture during the debugging process. During the joint adjustment, 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 whole-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 position is different. For a 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 a 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 that will affect the stable operation of the overall joint adjustment 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 view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: a supporting seat for the whole machine of a coal mining machine, comprising a supporting base, a plurality of connecting components installed with the coal mining machine are fixedly mounted on the upper end of the supporting base, and further comprising:

[0006] A vibration sensor is installed on the coal mining machine;

[0007] A support area expansion mechanism is installed 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 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 inspection warning mechanism is mounted on the supporting base and is electrically connected to the vibration sensor;

[0012] The pin quantity supplement mechanism is installed on the connection status inspection warning mechanism and is transmission-connected with the connection status inspection warning mechanism.

[0013] In the above-mentioned support seat for the whole-machine linkage of a 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, the moving ends of the plurality of electric push rods on the same side are fixedly connected with the same expansion plate, a plurality of reinforcing rods are equidistantly fixedly connected to the upper end of the expansion plate, and a plurality of reinforcing frames movably sleeved with the reinforcing rods are fixedly mounted on the upper end of the supporting base.

[0014] In the above-mentioned coal mining machine complete machine linkage support seat, the nail anti-skid mechanism includes an anti-skid nail that is movably inserted into the upper end of the supporting base, and the upper end of the anti-skid nail is fixedly connected to a pressure plate, and 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 magnetic 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 magnetic 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 sliding bars arranged side by side, and the plurality of limit sliding bars are externally slidably sleeved with the same lifting plate, a suction permanent magnetic plate is fixedly installed on the lower side of the lifting plate, a suction electromagnetic plate arranged opposite to the suction permanent magnetic plate is fixedly installed on the bottom of the inner wall of the detection shell, and the upper end of the lifting plate and the top of the inner wall of the detection shell are fixedly installed 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 an in-place switch. The side wall of the U-shaped fixed plate is provided with a strip opening for the in-place switch to penetrate and extend therethrough, and a synchronous switch is fixedly connected to the side of the lifting plate away from the in-place 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 to 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 penetrates and extends out 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 with 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, one side of the inner wall of the warning shell is fixedly provided with a warning switch arranged opposite to the pressing plate, and the outer wall of the warning shell is fixedly provided with an alarm.

[0018] In the above-mentioned coal mining machine whole-machine linkage support seat, the nail quantity replenishment mechanism includes a speed-increasing gear box fixedly mounted on the outer wall of the warning shell, one end of the rotating screw rod penetrates and extends out of 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 with 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 replenishment 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 with a plurality of push-pull rods, the lower ends of the plurality of push-pull rods penetrate the lower end of the air supply shell, and are fixedly connected with 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, and the supply The upper end of the gas shell and the replenishing shell are connected by an air supply pipe, and the upper end of the air supply shell is also fixedly connected with an air replenishing pipe. Both the air supply pipe and the air replenishing pipe are provided with a one-way valve, and the replenishing shell is fixedly connected with a small diameter exhaust pipe on the side of the air supply pipe corresponding to the air supply pipe, and a movable piston is provided in the sealing sleeve of the replenishing shell, and a U-shaped linkage rod is fixedly connected to the side of the movable piston away from the air supply pipe, and 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 with an extrusion round head, and a plurality of control switches arranged side by side and corresponding to the position of the extrusion round head are fixedly installed at the lower end of the replenishing shell, and a pressure spring mounted on the outside of the U-shaped linkage rod is fixedly connected to the opposite side of the movable piston and the replenishing shell, and an air leakage port is provided on the rear end side wall of the replenishing shell.

[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 prior art, the present invention has the following beneficial effects:

[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. Through the set nail anti-skid mechanism and nail quantity control mechanism, the support seat can have good anti-skid performance, ensuring the stable operation of the coal mining machine during the joint adjustment process, and can automatically adjust the number of anti-skid nails used based on the ground bearing strength. The lower the ground bearing strength, the more anti-skid nails are used, because the lower the ground bearing strength, the smaller the friction between the supporting base and the ground. In order to prevent the support seat from sliding, more anti-skid nails are used to increase the degree of engagement between the supporting base and the ground, thereby providing sufficient anti-skid 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-skid nails play a more auxiliary fixation role. Fewer anti-skid nails can meet the use requirements, avoiding the problem of too many anti-skid nails making it difficult to pull out the subsequent anti-skid nails, and facilitating subsequent use.

[0023] 3. Through the connection status inspection and warning mechanism, 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 promptly reminded to check 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 adjustment 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, thereby improving the anti-slip stability of the support seat. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 It is a three-dimensional structural schematic diagram 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 feedback mechanism of the present invention;

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

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

[0032] Figure 8 It is a cross-sectional structural schematic diagram of the pin quantity supplementing 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-skid mechanism, 31 anti-skid nail, 32 pressure plate, 33 U-shaped fixing plate, 34 force permanent magnetic 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 magnetic 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 replenishment mechanism, 71 speed increasing gear box, 72 cam, 73 air supply shell, 74 replenishment shell, 75 air supply piston, 76 push-pull rod, 77 push-pull plate, 78 reset spring, 79 air supply pipe, 710 air replenishment 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 assembly, 9 vibration sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 Figure 1-Figure 8As shown, a supporting seat for the whole machine of a coal mining machine comprises 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 comprises:

[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. The bottom support area of ​​the support seat can be automatically adjusted. On the premise of ensuring the support strength, the problem of excessive support area affecting the debugging work of the support seat can also be avoided.

[0038] A plurality of nail anti-skid mechanisms 3 are fixedly mounted on the upper end of the supporting base 1. The nail anti-skid mechanisms 3 include anti-skid nails 31 that are movably inserted into the upper end of the supporting base 1. The upper ends of the anti-skid nails 31 are fixedly connected to the pressure plates 32. The upper end of the supporting base 1 is fixedly mounted with a U-shaped fixing plate 33 arranged outside the pressure plates 32. The upper end of the pressure plates 32 is fixedly mounted with a force-bearing permanent magnetic plate 34. The lower end of the horizontal portion of the U-shaped fixing plate 33 is fixedly mounted with a force-bearing electromagnetic plate 35 that is arranged opposite to the force-bearing permanent magnetic plate 34. This can make the anti-skid stability of the entire support seat better, and can determine the number of anti-skid nails 31 to be used based on the ground bearing strength. On the premise of ensuring anti-skid stability, it is possible to avoid the difficulty of subsequent removal caused by too many anti-skid 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 slide bars 42 arranged side by side. The multiple limit slide bars 42 are slidably sleeved with the same lifting plate 43. A suction permanent magnetic plate 44 is fixedly installed on the lower side of the lifting plate 43. A suction electromagnetic plate 45 arranged opposite to the suction permanent magnetic plate 44 is fixedly installed on the bottom of the inner wall of the detection shell 41. Multiple pull-up springs 46 sleeved outside the limit slide bar 42 are fixedly installed on the upper end of the lifting plate 43 and the top of the inner wall of the detection shell 41. 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 synchronous switch 49, and the detection shell 41 is also rotatably connected with a synchronous screw 410 arranged parallel to the limit slide 42, the outer wall of the detection shell 41 is fixedly provided with a synchronous motor 411 for driving the synchronous screw 410 to rotate, the rod wall of the synchronous screw 410 is threadedly sleeved with a synchronous plate 412, the synchronous plate 412 is arranged corresponding to the position of the synchronous switch 49, the outer wall of the synchronous plate 412 is fixedly connected with the limit slide, the inner wall of the detection shell 41 is provided with a limit slide groove matching the limit slide, so that the ground bearing strength can be detected in advance 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 round 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 round shell 51. A counting switch 53 is fixedly installed on one side of the inner wall of the control round shell 51. An arc-shaped trigger block 54 corresponding to the position of the counting switch 53 is fixedly connected to the shaft wall of the transmission shaft 52. One end of the transmission shaft 52 penetrates and extends out of the control round 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 check warning mechanism 6 is installed on the supporting base 1 and is electrically connected to the vibration sensor 9. The connection status check 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. The warning shell 61 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 the wear threshold is reached.

[0042] The nail quantity replenishing mechanism 7 is installed on the connection status inspection warning mechanism 6 and is in transmission connection with the connection status inspection warning mechanism 6. The nail quantity replenishing mechanism 7 includes a speed increasing gear box 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 gear box 71. The output end of the speed increasing gear box 71 is fixedly connected with 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 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. 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 710 are fixedly connected. A one-way valve is installed on each of the tubes 710. A small-diameter exhaust pipe 711 is fixedly connected to one 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 arrangements 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 supplement mechanism 7 respectively.

[0044] The operating principle of the present invention is described as follows: first, the supporting base 1 is placed in the specified 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-skid 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-skid nail 31 to be nailed into the ground. Specifically, the smaller the ground bearing strength, the deeper the anti-skid nail 31 can be nailed into the ground under the fixed magnetic thrust, so that the pressure plate 32 moves 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 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 pull-up spring 46 until the switch 48 contacts the lower end of the pressure plate 32. Specifically, the lower the ground bearing strength, 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, thereby making the lifting plate 43 The relative spacing between the synchronous plate 412 is larger, and it is additionally explained that the installation ground of the support seat is pre-processed, and the entire installation ground is relatively flat. In the installation ground position where limited use is required, its own bearing strength is constrained by the ground type and will not change too much. Therefore, by detecting the bearing strength of one position of the ground using the nail anti-slip mechanism 3, the bearing strength of the entire installation ground can be fed back;

[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 through the threaded sleeve effect of 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 larger the distance between the lifting plate 43 and the synchronous plate 412 is, and the synchronous motor 411 needs to work for a longer time 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 greater 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, so that the transmission gear 55 moves 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 of the control shell 51, and the counting switch 53 will be pressed to trigger. The counting switch 53 will feed back the triggered signal to the PLC controller. Specifically, when the ground bearing strength is lower, the spacing between the synchronous plate 412 and the lifting plate 43 is larger, and the synchronous plate 412 needs to move a longer distance. The length of the driving gear 55 relative to the driving rack 56 is longer, so that the moving distance of the driving gear 55 relative to the driving rack 56 is larger, so that the arc-shaped trigger block 54 presses the counting switch 53 more times, and the PLC controller determines the number of groups of the nail anti-skid 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 times are, the more the nail anti-skid mechanism 3 is used. The PLC controller controls the power supply equipment to supply a large current to the force electromagnetic plate 35, and 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-skid nails 31 can be nailed into the ground, and providing support for the anti-skid property 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, the mechanical vibration quantity (such as displacement, velocity or acceleration) is converted 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 the pressure generated by the vibration, an electric charge is generated inside it. These charges are collected by electrodes and converted into voltage signals, 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, and the servo motor 63 drives the rotating screw 62 to rotate. The threaded sleeve of the rotating screw 62 and the pressing plate 64 moves the pressing plate 64 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 monitored by the vibration sensor 9, the PLC controller controls the servo motor 63 to operate with greater power, shortening the interval time of the pressing plate 64 acting on the warning switch 65, so that the warning work is 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 protruding part 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 protruding part 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-actuation of the 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, so that the frequency of the air supply shell 73 supplying air to the replenishing shell 74 is increased. 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 air, so that The air pressure in the replenishment 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 rear side, and the PLC controller will control more nail 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A support base for a 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 inspection warning mechanism (6) is mounted on the supporting base (1) and is electrically connected to the vibration sensor (9); The pin quantity supplement mechanism (7) is mounted on the connection status inspection warning mechanism (6) and is transmission-connected to the connection status inspection warning mechanism (6).

2. A supporting seat for the complete machine linkage of a coal mining machine according to claim 1, characterized in that: The support area expansion mechanism (2) comprises a plurality of electric push rods (21) symmetrically fixedly inserted into the side wall of the supporting 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 distances; and the upper end of the supporting base (1) is fixedly provided with a plurality of reinforcing frames (24) movably sleeved with the reinforcing rods (23).

3. The supporting seat for the complete machine linkage of a coal mining machine according to claim 1, characterized in that: 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).

4. A supporting seat for the complete machine linkage of a coal mining machine according to claim 3, characterized in that: The ground bearing capacity detection feedback mechanism (4) comprises a detection shell (41) fixedly connected to the outer side 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 in parallel; the plurality of limit slide bars (42) are slidably sleeved with the same lifting plate (43); a suction permanent magnetic plate (44) is fixedly installed on the lower side of the lifting plate (43); a suction electromagnetic plate (45) arranged opposite to the suction permanent magnetic plate (44) is fixedly installed on the bottom of the inner wall of the detection shell (41); and a plurality of pull-up springs (46) sleeved outside the limit slide bars (42) are fixedly installed on the upper end of the lifting plate (43) and the top of the inner wall of the detection shell (41). ), a linear motor (47) is fixedly inserted on one side of the lifting plate (43), a moving end of the linear motor (47) is fixedly connected to an in-position switch (48), a side wall of the U-shaped fixed plate (33) is provided with a strip opening for the in-position switch (48) to penetrate and extend therethrough, 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 limit slide bar (42) is also rotatably connected in the detection shell (41), a synchronous motor (411) for driving the synchronous screw (410) to rotate is fixedly installed on the outer wall of the detection shell (41), 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).

5. A supporting seat for the complete machine linkage of a coal mining machine according to claim 4, characterized in that: The pin number control mechanism (5) comprises a control round 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 round shell (51); a counting switch (53) is fixedly installed on one side of the inner wall of the control round shell (51); an arc-shaped trigger block (54) corresponding to the position of the counting switch (53) is fixedly connected to the shaft wall of the transmission shaft (52); one end of the transmission shaft (52) penetrates and extends out of the control round shell (51) and is fixedly connected to a transmission gear (55); and 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).

6. The supporting seat for the complete machine linkage of a 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).

7. A supporting seat for the complete machine linkage of a coal mining machine according to claim 6, characterized in that: The nail 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) penetrates and extends out of 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); an air supply shell (73) located at the upper end of the cam (72) is fixedly mounted on the outer wall of the warning shell (61); and a replenishing shell (73) is fixedly mounted on the outer wall of the warning shell (61). 4), a gas supply piston (75) is provided in the sealing sleeve of the gas supply shell (73), and the lower end of the gas 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 gas 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 gas supply shell (73), and a gas supply pipe (76) is provided between the upper end of the gas supply shell (73) and the supplementary shell (74). 9), the upper end of the air supply shell (73) is also fixedly connected to an air supply pipe (710), and both the air supply pipe (79) and the air supply pipe (710) are provided with a one-way valve, and 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), and 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 from the air supply pipe (79). 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 regulating switches (715) arranged side by side and corresponding to the position of the extrusion round head (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). A gas leakage port (717) is provided on the rear end side wall of the replenishing shell (74).

8. The supporting seat for the complete machine linkage of a coal mining machine according to claim 4, characterized in that: The outer wall of the synchronization plate (412) is fixedly connected to a limit sliding block, and the inner wall of the detection shell (41) is provided with a limit sliding groove that matches and slides with the limit sliding block.

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