Fully mechanized coal mining face spreading equipment

Abstract

The invention relates to the technical field of spreading equipment, and discloses fully mechanized coal mining face spreading equipment, which comprises a main body case and a locking control main body which are connected with each other, and further comprises a locking button, the outside of the locking button is fixedly connected with a stop dog and a mechanical lock, and the mechanical lock comprises a lock body positioned outside the locking button and a key matched with the lock body for use. A lock cylinder is rotationally connected into the lock body, a lock hole and a plugging inner core are formed in the middle of the lock cylinder, and a baffle making contact with the check block is fixedly connected to the end, away from the lock hole, of the plugging inner core. Coal dust and water vapor are blocked by blocking the interior of a lock hole through the blocking inner core, the scale deposition and corrosion phenomena are reduced from the source, in the key inserting and pulling process, the blocking inner core sliding back and forth can adhere to a proper amount of graphite powder through the powder scraping brush to enter the interior of the lock hole so as to lubricate the interior of the lock hole and the end faces of the driving pins, and the service life of the lock hole is prolonged. The occurrence frequency of faults such as difficult insertion and extraction of the key can be reduced while the occurrence of the lock cylinder dust accumulation and clamping stagnation phenomenon is reduced.

Description

Technical Field

[0001] This invention relates to the field of seeding equipment technology, and more specifically, to a seeding device for a fully mechanized mining face. Background Technology

[0002] The fully mechanized mining face broadcasting equipment is a core integrated communication and control device for underground coal mine working faces. Designed for harsh working conditions such as high gas, high dust, humidity, and strong vibration underground, this equipment mainly enables real-time voice communication for underground personnel, broadcasting of production instructions and safety warnings, emergency one-button interlocking control, and linkage management with equipment, providing an indispensable guarantee for efficient production and inherent safety in fully mechanized mining faces.

[0003] like Figure 2 As shown, this fully mechanized mining face broadcasting equipment mainly consists of a main chassis and a locking control unit. The main chassis is equipped with a communication button for voice communication and broadcasting functions, while the locking control unit is equipped with a locking button to support equipment shutdown control in emergency situations. To prevent unauthorized personnel from accidentally resetting the locking button, a mechanical lock is added to the locking control unit. When resetting, the operator must use a special key to rotate and unlock, in accordance with the coal mine safety regulations' requirement of "dedicated personnel responsible and controllable unlocking".

[0004] Although the aforementioned fully mechanized mining face expansion equipment can prevent unauthorized personnel from accidentally resetting the locking button, in actual application, the working conditions of fully mechanized coal mining faces are harsh, and mechanical locks are exposed to the high dust and humid working environment for a long time. The keyhole in the lock cylinder is prone to become a channel for the accumulation of coal dust and water vapor. The accumulated coal dust will mix with metal wear debris to form hard dirt, increasing the rotation resistance of the lock cylinder. Water vapor will accelerate the corrosion and oxidation of metal parts, resulting in increased surface roughness. Ultimately, both of these factors lead to malfunctions such as lock cylinder jamming due to dust accumulation and difficulty in inserting and removing the key, which is not conducive to resetting the locking button and affects the production efficiency of the fully mechanized mining face. Summary of the Invention

[0005] This invention provides a fully mechanized mining face expansion device, which solves the technical problem in related technologies that mechanical locks exposed to high dust and humid environments are prone to dust accumulation and jamming of the lock cylinder and difficulty in inserting and removing the key.

[0006] This invention provides a fully mechanized mining face propagation device, comprising a main chassis and a locking control main body connected to each other, and further comprising:

[0007] A locking button extends slidably into the locking control body, and a stop is fixedly connected to the outside of the locking button;

[0008] A mechanical lock is disposed outside the locking control body. The mechanical lock includes a lock body located outside the locking button and a matching key. A lock cylinder is rotatably connected inside the lock body, and a keyhole is opened in the middle of the lock cylinder.

[0009] The sealing core is adapted to the keyhole and slidably connected inside the keyhole. The end of the sealing core away from the keyhole is fixedly connected to a baffle that contacts the stop block. In the initial state, the sealing core is located inside the keyhole to block coal dust and water vapor.

[0010] Preferably, a return spring is symmetrically installed on the outside of the locking button, and an initial position groove and a locking groove are formed on the outside of the locking button. The initial position groove is close to the stop block, and the locking groove is close to the pressing surface of the locking button.

[0011] Preferably, the lock body has evenly spaced spring grooves inside, a drive pin is slidably connected inside the spring groove, and a compression spring is fixedly connected between the spring groove and the drive pin. The lock cylinder has evenly spaced vertical grooves aligned with the spring grooves inside, and a key pin that contacts the drive pin is slidably connected inside the vertical groove. The lengths of the multiple key pins are all different.

[0012] Preferably, when the sealing core enters the keyhole, the ends of the multiple key pins away from the keyhole are all located inside the corresponding spring grooves, and when the key enters the keyhole, the ends of the multiple key pins away from the keyhole are all located at the ends of the corresponding vertical grooves.

[0013] Preferably, an eccentric shaft is fixedly connected to the outside of the lock cylinder via a connecting plate, a guide rail is sleeved on the outside of the eccentric shaft, a locking block is slidably connected to the outside of the guide rail via a connecting rod, a fixing plate fixed to the outside of the locking control body is slidably connected to the outside of the connecting rod, and a sleeved spring sleeved on the outside of the connecting rod is fixedly connected between the locking block and the fixing plate.

[0014] Preferably, the side of the latching block near the locking groove is set as an inclined surface. In the initial state, the latching block is located inside the initial position groove. When the locking button is pressed down, the latching block is located inside the locking groove.

[0015] Preferably, the baffle is located between the stop block and the locking block, and when the locking button is reset, it can drive the sealing core to reset and enter the keyhole through the stop block and the baffle.

[0016] Preferably, a fixed chamber is provided below the eccentric shaft and fixed on the locking control body. The fixed chamber is filled with graphite powder. Openings are provided at both ends of the fixed chamber. The sealing core passes through the fixed chamber through the openings. On both sides of the openings, there are powder scraping brushes that fit against the outer side of the sealing core.

[0017] Preferably, both ends of the fixed compartment are connected to a connecting compartment, and a sealing plug is provided at the end of the connecting compartment away from the fixed compartment.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention employs a combination of a locking button and a mechanical lock. When the locking button is pressed, it is locked by a stop block that abuts against the locking control body and a locking block that engages with the locking groove. By inserting a key into the keyhole, the ends of multiple key pins of different lengths away from the keyhole are respectively located at the ends of the corresponding vertical grooves. The key can then be turned to rotate the lock cylinder to release the locking button, thus preventing unauthorized personnel from accidentally resetting the locking button.

[0020] 2. This invention employs a combination of a locking button, a mechanical lock, and a sealing core. The sealing core blocks coal dust and moisture from entering the keyhole, reducing dirt and corrosion at the source. When the key is inserted, it slides against the sealing core inside the keyhole. When the locking button is reset with the key, the reset button abuts against a baffle plate via a stop block, causing the sealing core to reset and push the key back, thereby reducing the resistance to pulling out the key.

[0021] 3. During the key insertion and removal process, the sealing core of this invention can slide back and forth inside the keyhole. The sliding sealing core can be coated with an appropriate amount of graphite powder by a scraping brush and enter the keyhole. This prevents excessive graphite powder from entering and affecting the lock cylinder's unlocking or locking actions. This lubricates the inside of the keyhole and the end faces of multiple drive pins, reducing the movement resistance between the drive pins and the inner wall of the lock cylinder and the key teeth. In other words, this invention reduces the occurrence of dust accumulation and jamming in the lock cylinder, and also reduces the frequency of key insertion and removal difficulties. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the existing technology;

[0024] Figure 3 This is a partial structural schematic diagram of the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of the structure at point A in the image;

[0026] Figure 5 This is a schematic diagram of the locking button in this invention;

[0027] Figure 6 This is a schematic diagram of the mechanical lock in this invention;

[0028] Figure 7 This is a schematic diagram of the structure of the sealing core located inside the keyhole in this invention;

[0029] Figure 8 for Figure 7 Enlarged view of the structure at point B in the image;

[0030] Figure 9 This is a schematic diagram of the structure in which the key is located inside the keyhole in this invention;

[0031] Figure 10 for Figure 9 Enlarged view of the structure at point C.

[0032] In the diagram: 10. Main chassis; 20. Locking control main body; 30. Locking button; 31. Stop block; 32. Return spring; 33. Initial position slot; 34. Locking slot; 40. Mechanical lock; 41. Lock body; 42. Key; 43. Lock cylinder; 44. Keyhole; 45. Eccentric shaft; 46. Guide rail; 47. Snap-fit ​​block; 48. Fixing plate; 49. Sleeve spring; 50. Sealing inner core; 51. Baffle; 60. Fixed compartment; 61. Opening; 62. Scraper; 63. Connecting compartment. Detailed Implementation

[0033] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0034] like Figure 1 - Figure 10 As shown, this embodiment provides a fully mechanized mining face expansion device, including a main body housing 10 and a locking control body 20 connected to each other. The main body housing 10 and the locking control body 20 constitute the existing fully mechanized mining face expansion device, and also include a locking button 30, a mechanical lock 40 and a sealing core 50.

[0035] The locking button 30 extends slidably into the locking control body 20. The part of the locking button 30 located outside the locking control body 20 is an insulated part. The part of the locking button 30 extending into the locking control body 20 can cooperate with the locking component (located inside the locking control body 20; the locking component is existing technology, and its structure and working principle are not detailed in this embodiment). Pressing the locking button 30 can realize the equipment stop control. A stop block 31 is fixedly connected to the outside of the locking button 30. A return spring 32 is symmetrically installed on the outside of the locking button 30. An initial position groove 33 and a locking groove 34 are opened on the outside of the locking button 30. The initial position groove 33 and the locking groove 34 are used to limit the initial position and the pressed position of the locking button 30. The initial position groove 33 is close to the stop block 31, and the locking groove 34 is close to the pressing surface of the locking button 30. When the locking button 30 is pressed, the stop block 31 abuts against the outside of the locking control body 20.

[0036] The mechanical lock 40 is located outside the locking control body 20. The mechanical lock 40 includes a lock body 41 located outside the locking button 30 and a matching key 42. The lock body 41 has evenly spaced spring grooves inside. A drive pin is slidably connected inside the spring groove. A pressure spring is fixedly connected between the spring groove and the drive pin. When the pressure spring is in its natural state, the bottom end of the drive pin does not exceed the spring groove. The lock body 41 is rotatably connected to a lock cylinder 43. The lock cylinder 43 has evenly spaced vertical grooves aligned with the spring grooves inside. A key pin that contacts the drive pin is slidably connected inside the vertical groove. The lengths of the multiple key pins are different. A keyhole 44 is opened in the middle of the lock cylinder 43. When the key 42 is inserted into the keyhole 44, the bottom ends of the multiple drive pins are exactly flush with the bottom ends of the spring grooves, and the top ends of the multiple key pins are exactly flush with the top ends of the vertical grooves. Then, by turning the key 42, the lock cylinder 43 can be rotated.

[0037] An eccentric shaft 45 is fixedly connected to the outside of the lock cylinder 43 via a connecting plate. A guide rail 46 is sleeved on the outside of the eccentric shaft 45. A locking block 47 slides on the outside of the guide rail 46 via a connecting rod. One end of the connecting rod is fixedly connected to the guide rail 46, and the other end of the connecting rod is slidably connected to the locking block 47. The side of the locking block 47 near the locking groove 34 is set as an inclined surface. In the initial state, the locking block 47 is located inside the initial position groove 33. When the locking button 30 is pressed down, the locking block 47 is located inside the locking groove 34 to limit the locking button 30. The external sliding connection is fixed to a fixed plate 48 on the outside of the locking control body 20. The guide rail 46, the connecting rod and the locking block 47 slide up and down through the fixed plate 48. A sleeve spring 49 is fixedly connected between the locking block 47 and the fixed plate 48 and is sleeved on the outside of the connecting rod. When the sleeve spring 49 is in its natural state, the distance between the connecting rod and the locking block 47 is the longest. When the lock cylinder 43 rotates, it can drive the guide rail 46 to move downward through the eccentric shaft 45, thereby causing the locking block 47 to disengage from the initial position groove 33 or the locking groove 34.

[0038] With the above structure, when the key 42 is inserted into the keyhole 44, the ends of multiple key pins of different lengths away from the keyhole 44 are respectively located at the ends of the corresponding vertical grooves. Then, the key 42 can be turned to drive the lock cylinder 43 to rotate and release the lock button 30, thus preventing unauthorized personnel from accidentally resetting the lock button.

[0039] The sealing core 50 is adapted to and slidably connected to the keyhole 44 inside the keyhole 44. When the sealing core 50 enters the keyhole 44, the ends of multiple key pins away from the keyhole 44 are located in the corresponding spring grooves. That is, the lock cylinder 43 cannot be rotated in this state. In the initial state, the sealing core 50 is located inside the keyhole 44 to block coal dust and water vapor. The end of the sealing core 50 away from the keyhole 44 is fixedly connected to a baffle 51 that contacts the stop block 31. The baffle 51 is located between the stop block 31 and the locking block 47. When the locking button 30 is pressed, the stop block 31 moves away from the baffle 51 and abuts against the outside of the locking control body 20. When the locking button 30 is reset, the sealing core 50 can be reset and enter the keyhole 44 through the stop block 31 and the baffle 51, reducing the resistance to pulling out the key 42.

[0040] Through the above structure, the sealing core 50 can block the keyhole 44 to block coal dust and water vapor, reducing the accumulation of dirt and corrosion from the source. When the key 42 is used to reset the locking button 30, the reset locking button 30 can abut against the baffle 51 through the stop block 31, so as to drive the sealing core 50 to reset and push the key 42 back, thereby reducing the resistance to pulling out the key 42.

[0041] In addition, a fixed chamber 60 is provided below the eccentric shaft 45 and fixed on the locking control body 20. The fixed chamber 60 is filled with graphite powder. Both ends of the fixed chamber 60 are connected to a connecting chamber 63. A sealing plug is provided at the end of the connecting chamber 63 away from the fixed chamber 60. By removing the sealing plug, graphite powder can be added to the interior of the fixed chamber 60 through the connecting chamber 63. Both ends of the fixed chamber 60 are provided with openings 61. The sealing core 50 passes through the fixed chamber 60 through the openings 61. Graphite powder can adhere to the outside of the sealing core 50 that passes through the fixed chamber 60 through the openings 61. Both sides of the openings 61 are provided with scraping brushes 62 that fit against the outside of the sealing core 50. When the key 42 is inserted or removed, the sealing core 50 can slide back and forth inside the keyhole 44. The back and forth sliding of the sealing core 50 and the scraping of the powder by the scraping brushes 62 can prevent too much graphite powder from entering the keyhole 44 and affecting the lock cylinder 43 to complete the unlocking or locking action.

[0042] Through the above structure, the sliding sealing core 50 can be coated with an appropriate amount of graphite powder by the scraper brush 62 and enter the keyhole 44 to lubricate the inside of the keyhole 44 and the end faces of multiple drive pins. This reduces the movement resistance between the drive pins and the inner wall of the lock cylinder 43 and the tooth surface of the key 42, reduces the occurrence of dust accumulation and jamming in the lock cylinder 43, and also reduces the frequency of faults such as difficulty in inserting and removing the key 42.

[0043] The specific working principle of this implementation is as follows: Figure 1 - Figure 3 As shown, when the equipment on the longwall mining face needs to be stopped in an emergency, pressing the interlock button 30 inward will control the equipment to stop.

[0044] During the process of pressing the locking button 30 inward, the locking button 30 moves the stop block 31 away from the baffle 51 and causes the initial position groove 33 to disengage from the locking block 47 (the inwardly moving initial position groove 33 will abut against the inclined surface of the locking block 47, causing the locking block 47 to slide outside the connecting rod and compress the sleeve spring 49). At the same time, the reset spring 32 is compressed, and the locking button 30 is continuously pressed inward until the stop block 31 abuts against the locking control body 20. At the same time, the locking groove 34 is locked inside the locking block 47 (when the inwardly moving locking groove 34 is aligned with the locking block 47, the compressed sleeve spring 49 will drive the locking block 47 to reset and enter the locking groove 34). At this time, the locking button 30 is locked, and the equipment continues to stop.

[0045] During the normal and pressed states of the locking button 30, the sealing core 50 remains inside the keyhole 44, blocking coal dust and moisture, thus reducing dirt and corrosion at the source. At the same time, when the sealing core 50 is inside the keyhole 44, the ends of multiple key pins away from the keyhole 44 are located inside their corresponding spring grooves, and multiple pressure springs are compressed, at which point the lock cylinder 43 is in the locked state.

[0046] When the locking button 30 needs to be reset, first wipe the end face of the sealing core 50 and ensure that the key 42 is clean to prevent coal dust and moisture from entering the keyhole 44 when the key 42 is inserted or removed. Then, insert the key 42 into the keyhole 44. The inserted key 42 will abut against the sealing core 50 and move inward. The inwardly moving sealing core 50 passes through the fixed compartment 60 and moves the baffle 51 closer to the stop block 31. When the key 42 is fully inserted into the keyhole 44, the bottom ends of the multiple drive pins are exactly aligned with the spring grooves due to the rebound force of the spring, the weight of the drive pins, and the weight of the key pins. The bottom of the lock body 41 is flush with the top of the lock cylinder 43, and the top of the multiple key pins is flush with the top of the vertical groove. At this time, the rotation between the lock body 41 and the lock cylinder 43 is unrestricted. Then, turning the key 42 will cause the lock cylinder 43 to rotate. The rotation of the lock cylinder 43 can drive the guide rail 46 to move downward through the eccentric shaft 45. The downward-moving guide rail 46 will drive the locking block 47 to move downward through the connecting rod and disengage from the locking groove 34 to release the lock button 30. Then, reverse the key 42 to reset the lock cylinder 43 and pull out the key 42 so that the compressed reset spring 32 can drive the lock button 30 to reset.

[0047] During the process of removing the key 42 to reset the locking button 30, the reset locking button 30 can abut against the baffle 51 through the stop block 31, thereby driving the sealing core 50 to reset and push the key 42 back, reducing the resistance to pulling out the key 42. At the same time, the reset sealing core 50 can be coated with an appropriate amount of graphite powder by the scraper brush 62 and enter the keyhole 44 to lubricate the inside of the keyhole 44 and the end faces of multiple drive pins, reducing the movement resistance between the drive pins and the inner wall of the lock cylinder 43 and the tooth surface of the key 42.

[0048] After being reset, the locking button 30 will cause the initial position slot 33 to engage with the outside of the engaging block 47, and at the same time cause the stop block 31 to contact the baffle 51.

[0049] This completes the pressing and resetting process of the locking button 30. While preventing unauthorized personnel from accidentally resetting the locking button, the sealing core 50 inside the keyhole 44 blocks coal dust and water vapor, reducing dirt and corrosion from the source. At the same time, the unlocking action lubricates the inside of the keyhole 44 and the end faces of multiple drive pins.

[0050] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A fully mechanized mining face propagation device, comprising a main chassis (10) and a locking control main body (20) connected to each other, characterized in that, Also includes: The locking button (30) slides into the interior of the locking control body (20), and a stop (31) is fixedly connected to the outside of the locking button (30). A mechanical lock (40) is provided outside the locking control body (20). The mechanical lock (40) includes a lock body (41) located outside the locking button (30) and a matching key (42). The lock body (41) is rotatably connected to a lock cylinder (43), and a keyhole (44) is provided in the middle of the lock cylinder (43). The sealing core (50) is adapted to the keyhole (44) and slidably connected inside the keyhole (44). The end of the sealing core (50) away from the keyhole (44) is fixedly connected to a baffle (51) that contacts the stop block (31). In the initial state, the sealing core (50) is located inside the keyhole (44) to block coal dust and water vapor.

2. The fully mechanized mining face seeding equipment according to claim 1, characterized in that, The locking button (30) is symmetrically equipped with a reset spring (32). The locking button (30) has an initial position groove (33) and a locking groove (34) on its exterior. The initial position groove (33) is close to the stop block (31), and the locking groove (34) is close to the pressing surface of the locking button (30).

3. The fully mechanized mining face seeding equipment according to claim 2, characterized in that, The lock body (41) has evenly spaced spring grooves inside, and a drive pin is slidably connected inside the spring groove. A pressure spring is fixedly connected between the spring groove and the drive pin. The lock cylinder (43) has evenly spaced vertical grooves aligned with the spring grooves inside, and a key pin that contacts the drive pin is slidably connected inside the vertical groove. The lengths of the multiple key pins are all different.

4. A fully mechanized mining face seeding device according to claim 3, characterized in that, When the sealing core (50) enters the keyhole (44), the ends of the multiple key pins away from the keyhole (44) are all located inside the corresponding spring grooves. When the key (42) enters the keyhole (44), the ends of the multiple key pins away from the keyhole (44) are all located at the ends of the corresponding vertical grooves.

5. A fully mechanized mining face seeding device according to claim 4, characterized in that, An eccentric shaft (45) is fixedly connected to the outside of the lock cylinder (43) via a connecting plate. A guide rail (46) is sleeved on the outside of the eccentric shaft (45). A locking block (47) is slidably connected to the outside of the guide rail (46) via a connecting rod. A fixing plate (48) fixed to the outside of the locking control body (20) is slidably connected to the outside of the connecting rod. A sleeved spring (49) sleeved on the outside of the connecting rod is fixedly connected between the locking block (47) and the fixing plate (48).

6. A fully mechanized mining face seeding device according to claim 5, characterized in that, The side of the latching block (47) near the locking groove (34) is set as an inclined surface. In the initial state, the latching block (47) is located inside the initial position groove (33). When the locking button (30) is pressed down, the latching block (47) is located inside the locking groove (34).

7. A fully mechanized mining face seeding device according to claim 6, characterized in that, The baffle (51) is located between the stop block (31) and the snap block (47). When the locking button (30) is reset, it can drive the sealing core (50) to reset and enter the lock eye (44) through the stop block (31) and the baffle (51).

8. A fully mechanized mining face seeding device according to claim 7, characterized in that, Below the eccentric shaft (45) is a fixed chamber (60) fixed on the locking control body (20). The fixed chamber (60) is filled with graphite powder. Both ends of the fixed chamber (60) have openings (61). The sealing core (50) passes through the fixed chamber (60) through the openings (61). Both sides of the openings (61) are provided with scraping brushes (62) that fit against the outside of the sealing core (50).

9. A fully mechanized mining face seeding device according to claim 8, characterized in that, Both ends of the fixed chamber (60) are connected to a connecting chamber (63), and a sealing plug is provided at the end of the connecting chamber (63) away from the fixed chamber (60).

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