CN113776570B - Protection device for mining machinery sensor - Google Patents
Protection device for mining machinery sensor Download PDFInfo
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- CN113776570B CN113776570B CN202111344190.5A CN202111344190A CN113776570B CN 113776570 B CN113776570 B CN 113776570B CN 202111344190 A CN202111344190 A CN 202111344190A CN 113776570 B CN113776570 B CN 113776570B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
Abstract
The invention relates to the technical field of sensor protection devices, in particular to a protection device for a mining machinery sensor, which comprises a protection bin, wherein a circular installation bin is arranged inside the protection bin, the circular installation bin is rotatably connected with the bottom of the protection bin through a set of fixed rotating shafts, a quick replacement assembly is arranged inside the circular installation bin, a driving assembly is arranged at the top of the protection bin, a set of protection assemblies is arranged at the top of the circular installation bin, and the quick replacement assembly comprises a pushing component and two sets of installation components. The dust can be filtered, and the dust is prevented from corroding the sensor body.
Description
Technical Field
The invention relates to the technical field of sensor protection devices, in particular to a protection device for a mining machinery sensor.
Background
The mining machinery is a machine directly used for mineral mining, enrichment and other operations, and comprises mining machinery and mineral separation machinery, the working principle and structure of the prospecting machinery are mostly the same as or similar to those of the mining machinery used for mining similar minerals, in a broad sense, the prospecting machinery also belongs to the mining machinery, in addition, a large number of cranes, conveyors, ventilators, drainage machinery and the like are also applied in the mining operation, sensors are widely applied to the mining equipment, various sensors are used for collecting the working temperature, pressure, torque and the like of the mining equipment to ensure the smooth operation of the mining machinery, and the sensors need to be protected by special protection devices due to the special environment of a mine;
the invention discloses a protection device for a mining machinery sensor with the patent number of CN110081911B, which comprises a sensor body, wherein the output end of the sensor body is connected with a sensor probe, the port of the sensor body is connected with a connecting sleeve in a clamping way, the protection device can protect the sensor probe by arranging a connecting strip and a protection head, when the distance of a test probe is required to be adjusted, a nut is manually rotated to drive a sub rod in threaded connection with the nut to axially displace, the sub rod extends out of a female sleeve, so that the change of the measurement distance is realized, when the test head is seriously worn and needs to be replaced, a sliding block is manually pulled upwards, the sliding block further drives a pull rod in specified connection with the pull rod to upwards move, two first connecting rods in rotational connection with the pull rod are further driven to upwards move after the pull rod moves, a second connecting rod further drives a supporting block fixedly connected with the second connecting rod to a third cavity, and the supporting block is separated from a supporting groove, the test head can be detached and replaced, so that the influence of abrasion of the test head is avoided.
However, the present invention has the following problems:
(1) the invention can only replace the sensor test head alone, when the sensor is in fault, the whole protection device still needs to be dismantled, the workload is too large, and the practicability is poor.
(2) The temperature reduction sensor is lack of a temperature reduction function, a large amount of heat is easily transferred to the sensor in the mining machinery during the working process of the sensor, if the heat is discharged in time, the sensor is damaged, and therefore the detection accuracy of the sensor is affected.
(3) The dust removal device is lack of dust removal effect, and due to the fact that a large amount of dust exists in the air on the mine, a large amount of corrosive particles are mixed in the dust, so that the sensor is corroded, and the detection effect of the sensor is influenced along with the operation of equipment.
Disclosure of Invention
The present invention is directed to a protection device for a mining machine sensor, which solves the problems of the related art.
The technical scheme of the invention is as follows: a protection device for a mining machinery sensor comprises a protection bin, wherein the protection bin is a semicircular hollow cavity, a circular installation bin is arranged inside the protection bin, the inside of the circular installation bin is hollow, the circular installation bin is rotatably connected with the bottom of the protection bin through a set of fixed rotating shafts, a quick replacement assembly is arranged inside the circular installation bin, a driving assembly is arranged at the top of the protection bin, a set of protection assemblies is arranged at the top of the circular installation bin, and the quick replacement assembly comprises a pushing part and two sets of installation parts;
every group installation component is including bracing piece, cylindrical slide cartridge, sensor fixing base and sensor body, cylindrical slide cartridge passes through the bracing piece sets up on the bottom inner wall in circular installation storehouse, the sensor fixing base sets up inside cylindrical slide cartridge, and sensor fixing base and cylindrical slide cartridge sliding fit, the sensor body sets up on the sensor fixing base.
Preferably, the sensor body is kept away from to the sensor fixing base one side and is seted up the sliding tray that link up from top to bottom, and the upper and lower both ends of sliding tray are provided with two sets of kicking blocks respectively, and through connecting spring fixed connection between two sets of kicking blocks, two sets of kicking blocks all pass through sliding tray and sensor fixing base sliding fit all are provided with a set of rack on the lateral wall of every group kicking block, and the one end of sliding tray inner wall is rotated and is connected with a set of connecting gear, connecting gear is located between two sets of racks, and two sets of racks all with rack toothing.
Preferably, every group the installation component is all still including the rectangle sliding frame, according to the briquetting, press the depression bar, jacking spring, spring fixed block and press the button, the rectangle sliding frame sets up the top at circular installation storehouse through a set of rectangular channel, the spring fixed block sets up on the inner wall of rectangle sliding frame, the jacking spring sets up the top at the spring fixed block, press the briquetting setting at the top of jacking spring, press the depression bar setting in the inside of jacking spring, and press the top of depression bar and press the bottom fixed connection of briquetting, be provided with multiunit and two sets of kicking block joint complex joint grooves on the cylindrical slide cartridge, every group is pressed the depression bar and is all located a set of kicking block directly over.
Preferably, the pushing component comprises a pushing electric cylinder, a hinged block, two groups of pushing rods, two groups of driving rods and two groups of L-shaped compression rods, promote the electric jar setting in the bottom of circular installation storehouse inner wall, articulated piece cover is established on the output shaft of promoting the electric jar, the bottom of two sets of catch bars all is articulated with articulated piece, one side of two sets of actuating levers is articulated with the top of two sets of catch bars respectively, one side that the catch bar was kept away from to every group actuating lever all is provided with a set of electro-magnet, every group electro-magnet all corresponds with a set of cylindrical slide cartridge, every group electro-magnet all with the cylindrical slide cartridge sliding fit that corresponds, two sets of L type depression bars set up the top at two sets of actuating levers respectively, the fluting that supplies L type depression bar to pass through is all seted up at the top of every group cylindrical slide cartridge, every group L type depression bar all cooperates with a set of kicking block joint that is close to L type depression bar, the top of every group cylindrical slide cartridge all is provided with a set of guide vane.
Preferably, a set of circular recess has been seted up on the lateral wall of protection storehouse, and the outside of circular recess is provided with a set of installation piece, rotates on the installation piece to be connected with a set of connection pivot, is provided with a set of closing plug in the connection pivot, and one side that the connection pivot is close to the closing plug is provided with reset spring, be provided with the sealing washer on the inner wall of circular recess, the sensor body passes through sealing washer and protection storehouse sealing connection.
Preferably, the protection subassembly is including installation section of thick bamboo, ratchet, pawl, two-way lead screw, gag lever post and L type mount, the installation section of thick bamboo rotates to be connected the top in circular installation storehouse, cylindrical cavity has been seted up to the inside in circular installation storehouse, and the installation section of thick bamboo rotates with the top in protection storehouse to be connected, the ratchet cover is established on the outer wall of installation section of thick bamboo, the pawl rotates the top of connecting in circular installation storehouse, ratchet and pawl mutually support, the vertical setting of two-way lead screw is on the top inner wall of cylindrical cavity, and two-way lead screw and installation section of thick bamboo are concentric and set up, L type mount sets up the top at circular installation storehouse inner wall, the vertical setting of gag lever post is on L type mount, and the top of gag lever post extends to inside the cylindrical cavity.
Preferably, the protection component further comprises a piston ring, the piston ring is sleeved on the bidirectional screw rod and is in threaded connection with the bidirectional screw rod, the piston ring is in sliding fit with the cylindrical cavity in the vertical direction, an exhaust pipeline is arranged on the outer wall of the installation cylinder, and the piston ring and the exhaust pipeline are both provided with one-way valves.
Preferably, drive assembly is including step motor and drive gear, step motor sets up at the top in protection storehouse, and drive gear cover is established on step motor's output shaft, the top cover of installation section of thick bamboo is equipped with driven gear, driven gear and drive gear meshing.
Preferably, circular through holes are formed in the outer wall of the circular mounting bin, and a group of filter screens is arranged on each group of circular through holes.
The invention provides a protection device for a mining machinery sensor through improvement, and compared with the prior art, the protection device has the following improvement and advantages:
when the sensor body is ejected out by the electromagnet, the outer edge of the sensor body is hermetically connected with the sealing ring, only the detection part of the sensor body 25 extends into the mining machinery to seal and protect the main body part of the sensor body, and when the sensor body retracts into the circular mounting bin, the sealing ring can seal the circular groove under the action of the reset spring to prevent gas and oil in the mining machinery from leaking, so that the sensor body is prevented from being damaged, and the measuring effect of the sensor is influenced.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a portion of the present invention;
FIG. 3 is a perspective view of a quick change assembly of the present invention;
FIG. 4 is a partial perspective view of the quick change assembly of the present invention;
FIG. 5 is a cross-sectional view of the internal structure of the quick-change assembly of the present invention;
FIG. 6 is an enlarged view at A in FIG. 5;
FIG. 7 is an enlarged view at B in FIG. 5;
FIG. 8 is a perspective view of the drive assembly of the present invention;
FIG. 9 is an enlarged view at C of FIG. 8;
FIG. 10 is an enlarged view at D of FIG. 8;
FIG. 11 is a schematic perspective view of a portion of the protective assembly of the present invention;
fig. 12 is an enlarged view at E in fig. 11.
Description of reference numerals: 1. a protection bin; 2. a circular mounting bin; 3. a driven gear; 4. mounting the cylinder; 5. a step motor; 6. a drive gear; 11. a support bar; 12. fixing the rotating shaft; 13. a cylindrical slide drum; 14. an L-shaped fixing frame; 15. pressing the button; 16. an electric cylinder; 17. a hinged block; 18. a push rod; 19. a drive rod; 20. an L-shaped compression bar; 21. a guide piece; 22. a clamping groove; 23. an electromagnet; 24. a sensor holder; 25. a sensor body; 26. a top block; 27. a connecting spring; 28. a rack; 29. a connecting gear; 30. a pressing block; 31. a rectangular sliding frame; 32. a jacking spring; 33. a spring fixing block; 34. a pressing lever; 35. a circular through hole; 36. a filter screen; 37. a ratchet wheel; 38. a pawl; 39. mounting blocks; 40. a closing plug; 41. connecting the rotating shaft; 42. a return spring; 43. an exhaust duct; 44. a bidirectional screw rod; 45. a piston ring; 46. a limiting rod; 47. a cylindrical cavity.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a protection device for a mining machinery sensor through improvement, and the technical scheme of the protection device is as follows:
the first embodiment is as follows:
as shown in fig. 1 to 12, a protection device for a mining machinery sensor comprises a protection bin 1, wherein the protection bin 1 is a semicircular hollow cavity, a circular installation bin 2 is arranged inside the protection bin 1, the circular installation bin 2 is hollow, the circular installation bin 2 is rotatably connected with the bottom of the protection bin 1 through a set of fixed rotating shaft 12, a quick replacement assembly is arranged inside the circular installation bin 2, a driving assembly is arranged at the top of the protection bin 1, a set of protection assembly is arranged at the top of the circular installation bin 2, and the quick replacement assembly comprises a pushing part and two sets of installation parts;
each group of mounting components comprises a support rod 11, a cylindrical sliding barrel 13, a sensor fixing seat 24 and a sensor body 25, wherein the cylindrical sliding barrel 13 is arranged on the inner wall of the bottom of the circular mounting bin 2 through the support rod 11, the sensor fixing seat 24 is arranged inside the cylindrical sliding barrel 13, the sensor fixing seat 24 is in sliding fit with the cylindrical sliding barrel 13, and the sensor body 25 is arranged on the sensor fixing seat 24; the outer edge of the protection bin 1 is arranged at a specific part of the mining machine, so that the outer edge of the protection bin 1 is positioned inside the mining machine, and the circular installation bin 2 is positioned outside the mining machine, so that the whole device is protected.
Specifically, one side of the sensor fixing seat 24, which is away from the sensor body 25, is provided with a vertically through sliding groove, two sets of ejector blocks 26 are respectively arranged at the upper end and the lower end of the sliding groove, the two sets of ejector blocks 26 are fixedly connected through a connecting spring 27, the two sets of ejector blocks 26 are in sliding fit with the sensor fixing seat 24 through the sliding groove, a set of racks 28 is arranged on the side wall of each set of ejector blocks 26, one end of the inner wall of the sliding groove is rotatably connected with a set of connecting gears 29, the connecting gears 29 are located between the two sets of racks 28, and the two sets of racks 28 are both meshed with the racks 28; when the sensor body 25 is out of order and needs to be replaced, a worker puts a new sensor body 25 and a new sensor fixing seat 24 into the cylindrical sliding barrel 13 together, so that two groups of top blocks 26 on the sensor body 25 are clamped and fixed with one group of clamping grooves 22 on the cylindrical sliding barrel 13.
Specifically, each group of the mounting components further includes a rectangular sliding frame 31, a pressing block 30, a pressing rod 34, a jacking spring 32, a spring fixing block 33 and a pressing button 15, the rectangular sliding frame 31 is arranged at the top of the circular mounting bin 2 through a group of rectangular grooves, the spring fixing block 33 is arranged on the inner wall of the rectangular sliding frame 31, the jacking spring 32 is arranged at the top of the spring fixing block 33, the pressing block 30 is arranged at the top of the jacking spring 32, the pressing rod 34 is arranged inside the jacking spring 32, the top of the pressing rod 34 is fixedly connected with the bottom of the pressing block 30, a plurality of groups of clamping grooves 22 which are clamped and matched with two groups of the jacking blocks 26 are arranged on the cylindrical sliding barrel 13, and each group of the pressing rods 34 is located right above one group of the jacking blocks 26; the staff presses the push rod 34 downstream of push button 15 drive push block 30 bottom through pressing, presses the kicking block 26 that lies in the top, and when the kicking block 26 downstream of top, under the effect of two sets of racks 28 and connecting gear 29, the kicking block 26 that lies in the below can the upward movement to make two sets of kicking blocks 26 break away from with joint groove 22, so that the sensor body 25 that the staff will need to change takes out.
Specifically, the pushing component comprises an electric pushing cylinder 16, a hinged block 17, two groups of push rods 18, two groups of driving rods 19 and two groups of L-shaped press rods 20, the electric pushing cylinder 16 is arranged at the bottom of the inner wall of the circular mounting bin 2, the hinged block 17 is sleeved on the output shaft of the electric pushing cylinder 16, the bottoms of the two groups of push rods 18 are hinged to the hinged block 17, one sides of the two groups of driving rods 19 are hinged to the tops of the two groups of push rods 18, one side, away from the push rods 18, of each group of driving rods 19 is provided with a group of electromagnets 23, each group of electromagnets 23 corresponds to one group of cylindrical sliding cylinders 13, each group of electromagnets 23 is in sliding fit with the corresponding cylindrical sliding cylinders 13, the two groups of L-shaped press rods 20 are arranged at the tops of the two groups of driving rods 19, the top of each group of cylindrical sliding cylinders 13 is provided with a slot for the L-shaped press rod 20 to pass through, each group of L-shaped press rods 20 is in clamping fit with a group of top blocks 26 close to the L-shaped press rods 20, the top of each group of cylindrical sliding cylinders 13 is provided with a group of guide vanes 21; the sensor fixing seat 24 is magnetically connected with the electromagnet 23, when the new sensor body 25 and the sensor fixing seat 24 are fixed inside the cylindrical sliding barrel 13, the electromagnet 23 adsorbs the sensor fixing seat 24, meanwhile, the output end of the electric cylinder 16 retracts, the driving rod 19 is driven by the push rod 18 to move, so that the two groups of electromagnets 23 approach each other, and further the two groups of sensor fixing seats 24 move towards the electric cylinder 16, so that the sensor body 25 to be replaced and the new sensor body 25 enter the circular mounting bin 2, the mounting bin 4 rotates clockwise, the circular mounting bin 2 is driven to rotate 180 degrees through the clamping action of the ratchet wheel 37 and the pawl 38, so that the positions of the new sensor body 25 and the sensor body 25 to be replaced are exchanged, then, the output end of the electric cylinder 16 is jacked up, the driving rod 19 is driven by the push rod 18, so that the two groups of electromagnets 23 are far away from each other, and then make two sets of sensor fixing bases 24 remove to opposite direction, inside new sensor body 25's detection part entered into mining machinery for the sensor body 25 that needs to be changed stretches out circular installation storehouse 2, and the staff of being convenient for takes out, and L type depression bar 20 is used for pressing kicking block 26, and the electro-magnet 23 of being convenient for drives sensor fixing base 24 and removes.
Specifically, a set of circular grooves are formed in the side wall of the protection bin 1, a set of mounting blocks 39 are arranged outside the circular grooves, a set of connecting rotating shafts 41 are rotatably connected to the mounting blocks 39, a set of closing plugs 40 are arranged on the connecting rotating shafts 41, a return spring 42 is arranged on one side, close to the closing plugs 40, of the connecting rotating shafts 41, a sealing ring is arranged on the inner wall of each circular groove, and the sensor body 25 is hermetically connected with the protection bin 1 through the sealing ring; when the sensor body 25 is ejected by the electromagnet 23, the outer edge of the sensor body 25 is connected with the sealing ring in a sealing manner, only the detection part of the sensor body 25 extends into the mining machinery, the main body part of the sensor body 25 is protected in a sealing manner, when the sensor body 25 retracts into the circular mounting bin 2, the sealing ring can seal the circular groove under the action of the reset spring 42, gas and oil inside the mining machinery are prevented from leaking, and therefore damage to the sensor body is caused, and the measuring effect of the sensor is influenced.
Specifically, the protection component comprises a mounting cylinder 4, a ratchet wheel 37, a pawl 38, a bidirectional screw rod 44, a limiting rod 46 and an L-shaped fixing frame 14, the mounting cylinder 4 is rotationally connected with the top of the circular mounting bin 2, a cylindrical cavity 47 is arranged inside the circular mounting bin 2, the mounting cylinder 4 is rotationally connected with the top of the protection bin 1, the ratchet wheel 37 is sleeved on the outer wall of the mounting barrel 4, the pawl 38 is rotatably connected to the top of the circular mounting bin 2, the ratchet wheel 37 is matched with the pawl 38, the bidirectional screw rod 44 is vertically arranged on the top inner wall of the cylindrical cavity 47, the bidirectional screw rod 44 and the mounting barrel 4 are arranged concentrically, the L-shaped fixing frame 14 is arranged at the top of the inner wall of the circular mounting bin 2, the limiting rod 46 is vertically arranged on the L-shaped fixing frame 14, and the top end of the limiting rod 46 extends into the cylindrical cavity 47; after the new sensor body 25 is installed, the installation cylinder 4 rotates anticlockwise, the ratchet wheel 37 loses the driving effect on the pawl 38, the circular installation bin 2 cannot rotate at the moment, the position of the sensor body after installation cannot be changed, and when the installation cylinder 4 rotates, the bidirectional screw rod 44 can rotate along with the installation cylinder 4.
Specifically, the protection assembly further comprises a piston ring 45, the piston ring 45 is sleeved on the bidirectional screw rod 44, the piston ring 45 is in threaded connection with the bidirectional screw rod 44, the piston ring 45 is in sliding fit with the cylindrical cavity 47 in the vertical direction, the outer wall of the mounting cylinder 4 is provided with an exhaust pipeline 43, and the piston ring 45 and the exhaust pipeline 43 are both provided with one-way valves; when the bidirectional screw 44 rotates, the piston ring 45 is driven to move up and down along the cylindrical cavity 47, when the piston ring 45 moves downwards, high-temperature air inside the circular mounting bin 2 enters the cylindrical cavity 47 through the one-way valve on the piston ring 45, and when the piston ring 45 moves upwards, the high-temperature air in the cylindrical cavity 47 is discharged through the exhaust pipeline 43.
Specifically, the driving assembly comprises a stepping motor 5 and a driving gear 6, the stepping motor 5 is arranged at the top of the protection bin 1, the driving gear 6 is sleeved on an output shaft of the stepping motor 5, the top of the mounting barrel 4 is sleeved with a driven gear 3, and the driven gear 3 is meshed with the driving gear 6; the driving motor drives the driven gear 3 to rotate through the driving gear 6, and the driven gear 3 continues to drive the mounting cylinder 4 to rotate.
Specifically, circular through holes 35 are formed in the outer wall of the circular mounting bin 2, and a group of filter screens 36 is arranged on each group of circular through holes 35; when high temperature air passes through exhaust duct 43 and discharges, when outside air can enter into circular installation storehouse 2 through circular through-hole 35, can be filtered by filter screen 36 to can reach and cool down sensor body 25, and carry out filterable effect to the inside dust in circular installation storehouse 2.
The working principle is as follows: when the sensor body 25 is out of order and needs to be replaced, a worker puts a new sensor body 25 and a new sensor fixing seat 24 into the cylindrical sliding barrel 13 together, so that two groups of top blocks 26 on the sensor body 25 are clamped and fixed with one group of clamping grooves 22 on the cylindrical sliding barrel 13.
The sensor fixing seat 24 is magnetically connected with the electromagnet 23, when the new sensor body 25 and the sensor fixing seat 24 are fixed inside the cylindrical sliding barrel 13, the electromagnet 23 adsorbs the sensor fixing seat 24, meanwhile, the output end of the electric cylinder 16 retracts, the driving rod 19 is driven by the push rod 18 to move, so that the two groups of electromagnets 23 are close to each other, the two groups of sensor fixing seats 24 move towards the electric cylinder 16, and the sensor body 25 to be replaced and the new sensor body 25 enter the circular mounting bin 2;
through the joint effect of ratchet 37 and pawl 38, driving motor drives driven gear 3 through drive gear 6 and rotates, driven gear 3 continues to drive installation section of thick bamboo 4 and rotates, drive circular installation storehouse 2 rotatory 180 degrees, make new sensor body 25 and the sensor body 25 position that needs to be changed exchange, later the output jacking of electric cylinder 16, drive actuating lever 19 motion through catch bar 18, make two sets of electro-magnets 23 keep away from each other, and then make two sets of sensor fixing bases 24 remove to opposite direction, the detection part of new sensor body 25 enters into inside the mining machinery, make the sensor body 25 that needs to be changed stretch out circular installation storehouse 2, the staff of being convenient for takes out, L type depression bar 20 is used for pressing on kicking block 26, be convenient for electro-magnet 23 drive sensor fixing base 24 and remove.
The staff presses the push rod 34 downstream of push button 15 drive push block 30 bottom through pressing, presses the kicking block 26 that lies in the top, and when the kicking block 26 downstream of top, under the effect of two sets of racks 28 and connecting gear 29, the kicking block 26 that lies in the below can the upward movement to make two sets of kicking blocks 26 break away from with joint groove 22, so that the sensor body 25 that the staff will need to change takes out.
When the sensor body 25 is ejected by the electromagnet 23, the outer edge of the sensor body 25 is hermetically connected with the sealing ring, only the detection part of the sensor body 25 extends into the mining machinery, the main body part of the sensor body 25 is protected in a sealing mode, and when the sensor body 25 retracts into the circular mounting bin 2, the sealing ring can seal the circular groove under the action of the reset spring 42, so that gas and oil inside the mining machinery are prevented from leaking.
After the new sensor body 25 is installed, the installation barrel 4 rotates anticlockwise, the ratchet wheel 37 loses the driving effect on the pawl 38, the circular installation bin 2 cannot rotate at the moment, and when the installation barrel 4 rotates, the bidirectional screw rod 44 rotates along with the installation barrel 4.
When the bidirectional screw 44 rotates, the piston ring 45 is driven to move up and down along the cylindrical cavity 47, when the piston ring 45 moves downwards, high-temperature air inside the circular mounting bin 2 enters the cylindrical cavity 47 through the one-way valve on the piston ring 45, and when the piston ring 45 moves upwards, the high-temperature air in the cylindrical cavity 47 is discharged through the exhaust pipeline 43.
When high temperature air passes through exhaust duct 43 and discharges, when outside air can enter into circular installation storehouse 2 through circular through-hole 35, can be filtered by filter screen 36 to can reach and cool down sensor body 25, and carry out filterable effect to the inside dust in circular installation storehouse 2.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The protection device for the mining machinery sensor is characterized by comprising a protection bin (1), wherein the protection bin (1) is a semicircular hollow cavity, a round installation bin (2) is arranged inside the protection bin (1), the round installation bin (2) is hollow, the round installation bin (2) is rotatably connected with the bottom of the protection bin (1) through a set of fixed rotating shaft (12), a quick replacement assembly is arranged inside the round installation bin (2), a driving assembly is arranged at the top of the protection bin (1), a set of protection assemblies is arranged at the top of the round installation bin (2), and the quick replacement assembly comprises a pushing part and two sets of installation parts;
each group of mounting components comprises a support rod (11), a cylindrical sliding barrel (13), a sensor fixing seat (24) and a sensor body (25), the support rod (11) is arranged on the inner wall of the bottom of the circular mounting bin (2), the cylindrical sliding barrel (13) is arranged at the top of the support rod (11), the sensor fixing seat (24) is arranged inside the cylindrical sliding barrel (13), the sensor fixing seat (24) is in sliding fit with the cylindrical sliding barrel (13), the sensor body (25) is arranged on the end face, close to one side of the side wall of the circular mounting bin (2), of the sensor fixing seat (24), a circular through groove for the sensor body (25) to pass through is formed in the outer wall of the circular mounting bin (2), and a through hole is formed in the top of the circular mounting bin (2);
one side, far away from the sensor body (25), of the sensor fixing seat (24) is provided with a sliding groove which is through up and down, two groups of ejector blocks (26) are arranged at the upper end and the lower end of the sliding groove respectively, the two groups of ejector blocks (26) are fixedly connected through a connecting spring (27), the two groups of ejector blocks (26) are in sliding fit with the sensor fixing seat (24) through the sliding groove, a group of racks (28) are arranged on the side wall of each group of ejector blocks (26), one end of the inner wall of the sliding groove is rotatably connected with a group of connecting gears (29), the connecting gears (29) are located between the two groups of racks (28), and the two groups of racks (28) are meshed with the racks (28);
each group of the mounting components also comprises a rectangular sliding frame (31), a pressing block (30), a pressing rod (34), a jacking spring (32), a spring fixing block (33) and a pressing button (15), the rectangular sliding frame (31) is arranged at the top of the round mounting bin (2) through a group of rectangular grooves, the spring fixing block (33) is arranged on the inner wall of the rectangular sliding frame (31), the jacking spring (32) is arranged at the top of the spring fixing block (33), the pressing block (30) is arranged at the top of the jacking spring (32), the pressing rod (34) is arranged inside the jacking spring (32), the top of each pressing rod (34) is fixedly connected with the bottom of each pressing block (30), a plurality of groups of clamping grooves (22) which are clamped and matched with the two groups of ejector blocks (26) are formed in the cylindrical sliding barrel (13), and each group of pressing rods (34) is located right above one group of ejector blocks (26);
the protection component comprises an installation barrel (4), a ratchet wheel (37), a pawl (38), a bidirectional screw rod (44), a limiting rod (46) and an L-shaped fixing frame (14), the installation barrel (4) is rotatably connected to the top of the circular installation bin (2), a cylindrical cavity (47) is formed in the circular installation bin (2), the installation barrel (4) is rotatably connected with the top of the protection bin (1), the ratchet wheel (37) is sleeved on the outer wall of the installation barrel (4), the pawl (38) is rotatably connected to the top of the circular installation bin (2), the ratchet wheel (37) and the pawl (38) are mutually matched, the bidirectional screw rod (44) is vertically arranged on the inner wall of the top of the cylindrical cavity (47), the bidirectional screw rod (44) and the installation barrel (4) are concentrically arranged, and the L-shaped fixing frame (14) is arranged at the top of the inner wall of the circular installation bin (2), the limiting rod (46) is vertically arranged on the L-shaped fixing frame (14), the top end of the limiting rod (46) extends into the cylindrical cavity (47), and the bidirectional screw rod (44) and the limiting rod (46) extend into the circular mounting bin (2) through the through holes;
the protection assembly further comprises a piston ring (45), the piston ring (45) is sleeved on the bidirectional screw rod (44), the piston ring (45) is in threaded connection with the bidirectional screw rod (44), the piston ring (45) is in sliding fit with the cylindrical cavity (47) in the vertical direction, an exhaust pipeline (43) is arranged on the outer wall of the installation cylinder (4), and the piston ring (45) and the exhaust pipeline (43) are both provided with one-way valves.
2. A protection arrangement for a mining machine sensor according to claim 1, characterised in that: the pushing component comprises a pushing electric cylinder (16), a hinging block (17), two groups of push rods (18), two groups of driving rods (19) and two groups of L-shaped pressure rods (20), the pushing electric cylinder (16) is arranged at the bottom of the inner wall of the circular mounting bin (2), the hinging block (17) is sleeved on an output shaft of the pushing electric cylinder (16), the bottoms of the two groups of push rods (18) are hinged with the hinging block (17), one side of each group of driving rods (19) is hinged with the tops of the two groups of push rods (18), one side of each group of driving rods (19) far away from the push rods (18) is provided with one group of electromagnets (23), each group of electromagnets (23) corresponds to one group of cylindrical sliding cylinders (13), each group of electromagnets (23) is in sliding fit with the corresponding cylindrical sliding cylinder (13), the two groups of L-shaped pressure rods (20) are arranged at the tops of the two groups of driving rods (19) respectively, the top of every cylindrical smooth section of thick bamboo (13) of group all sets up the fluting that supplies L type depression bar (20) to pass through, every L type depression bar of group (20) all with a set of kicking block (26) joint cooperation that is close to L type depression bar (20), the top of every cylindrical smooth section of thick bamboo of group (13) all is provided with a set of guide vane (21).
3. A protection device for a mining machine sensor according to claim 2, characterized in that: the sensor is characterized in that a set of circular groove is formed in the side wall of the protection bin (1), a set of installation block (39) is arranged outside the circular groove, a set of connection rotating shaft (41) is connected to the installation block (39) in a rotating mode, a set of sealing plug (40) is arranged on the connection rotating shaft (41), a reset spring (42) is arranged on one side, close to the sealing plug (40), of the connection rotating shaft (41), a sealing ring is arranged on the inner wall of the circular groove, and the sensor body (25) is connected with the protection bin (1) in a sealing mode.
4. A protection arrangement for a mining machine sensor according to claim 3, characterised in that: drive assembly is including step motor (5) and drive gear (6), step motor (5) set up at the top in protection storehouse (1), and drive gear (6) cover is established on the output shaft of step motor (5), the top cover of installation section of thick bamboo (4) is equipped with driven gear (3), driven gear (3) and drive gear (6) meshing.
5. A protection arrangement for a mining machine sensor according to claim 4, characterised in that: circular through-hole (35) have been seted up on the outer wall in circular installation storehouse (2), all be provided with a set of filter screen (36) on every circular through-hole of group (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111344190.5A CN113776570B (en) | 2021-11-15 | 2021-11-15 | Protection device for mining machinery sensor |
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| CN202111344190.5A CN113776570B (en) | 2021-11-15 | 2021-11-15 | Protection device for mining machinery sensor |
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