Mining intrinsic safety type valve controller

Abstract

The utility model discloses a mining intrinsic safety type valve controller which comprises a shell made of plastic, a detachable installation plate is arranged in the shell, supporting plates which are arranged in parallel at intervals are arranged on one side of the installation plate, a reduction gear set is arranged between the installation plate and the supporting plates, and the reduction gear set is connected with the installation plate through a connecting rod. A sleeve is coaxially arranged at the output end of the reduction gear set, a groove matched with a valve to be operated is formed in the end of the sleeve, a control hole corresponding to the sleeve is formed in the shell, and the sleeve is coaxially arranged in the control hole in a penetrating mode. The input end of the reduction gear set is coaxially connected with an intrinsic safety type brushless motor, and the intrinsic safety type brushless motor is connected with an intrinsic safety type electric control module. The utility model has the advantages of reasonable structural design, light overall weight, convenience in underground installation, facilitation of prolonging the service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to an intrinsically safe valve controller for mining applications. Background Technology

[0002] Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, diversion, and overflow / pressure relief. Valve controllers are products used in conjunction with valves to control their opening and closing. Mining valve controllers fall under the category of mine electrical equipment and must meet the insulation resistance and power frequency withstand voltage requirements specified in MT 210-1990. Most existing mining valve controllers use 24V DC motors or 127V AC motors. To meet explosion-proof requirements, they are typically encapsulated in an explosion-proof structure with an iron casing, resulting in a large overall weight and size, making underground installation inconvenient. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a mining intrinsically safe valve controller with reasonable structural design, light overall weight, convenient underground installation, and beneficial extension of service life.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An intrinsically safe valve controller for mining applications includes a plastic housing with a detachable mounting plate inside. One side of the mounting plate has parallel, spaced-apart support plates. A reduction gear set is disposed between the mounting plate and the support plates. The output end of the reduction gear set has a coaxially mounted sleeve with a groove at its end that matches the valve to be operated. The housing has a control hole corresponding to the sleeve, and the sleeve coaxially passes through the control hole. An intrinsically safe brushless motor is coaxially connected to the input end of the reduction gear set, and an intrinsically safe electrical control module is connected to the intrinsically safe brushless motor.

[0006] In the aforementioned structure, an intrinsically safe brushless motor drives a reduction gear set. The reduction gear set increases the output torque of the sleeve, thereby controlling the valve's opening and closing. Because the brushless motor uses electronic commutation, it eliminates the risk of mechanical sparks and avoids wear during use, extending its service life. Furthermore, the absence of mechanical contact in electronic commutation makes it more suitable for dusty downhole environments. By employing an intrinsically safe brushless motor and an intrinsically safe electrical control module, the electrical control system itself meets intrinsic safety requirements, allowing for the use of a plastic housing for protection. This significantly reduces the overall weight and size, facilitating disassembly and assembly in the well.

[0007] Furthermore, the outer casing includes a lower casing and an upper casing that are interlocked with each other, and the control hole is located on the lower casing.

[0008] Furthermore, the edge of the control hole extends in a direction away from the upper housing to form a support cylinder, the bottom of the lower housing has a support wall surrounding the support cylinder, and the support cylinder has a plurality of radially arranged reinforcing ribs, which are connected between the support wall and the support cylinder.

[0009] In this way, the strength of the lower shell can be enhanced by the support cylinder, support wall, and reinforcing ribs.

[0010] Furthermore, four reinforcing ribs are distributed circumferentially along the support cylinder, and each reinforcing rib is provided with at least one screw hole arranged axially along the control hole, the screw hole being located in the middle of the reinforcing rib.

[0011] Furthermore, a sealing ring is provided between the sleeve and the control hole.

[0012] Furthermore, a magnetic rotary encoder is provided between the output shaft of the reduction gear set and the mounting plate or support plate, and the magnetic rotary encoder is connected to the intrinsically safe electronic control module.

[0013] Furthermore, the output shaft of the reduction gear set extends upward and is close to the upper housing. An arc-shaped window coaxial with the output shaft is opened on the upper housing, and a transparent cover plate is sealed on the arc-shaped window. The upper end of the output shaft has a pointer arranged radially, and the pointer is located inside the arc-shaped window.

[0014] In this way, the rotation angle of the output shaft can be indicated by the pointer at the top of the output shaft, and the rotation angle of the output shaft is the rotation angle of the sleeve-operated valve. Thus, the real-time opening degree of the valve can be directly observed through the arc-shaped window.

[0015] Furthermore, the intrinsically safe electronic control module is connected to a display screen, and the upper housing has a display window corresponding to the display screen, and is sealed with a transparent protective plate, with the display screen disposed within the display window.

[0016] Furthermore, the reduction gear set includes an input pinion gear disposed on the intrinsically safe brushless motor and an output large gear coaxially connected to the sleeve. A gear shaft is sequentially meshed between the input pinion gear and the output large gear. The gear shaft includes a rotating shaft rotatably disposed between the mounting plate and the support plate. The large gear and the pinion gear are fixedly mounted on the rotating shaft. The input pinion gear meshes with the large gear, and the output large gear meshes with the pinion gear.

[0017] Furthermore, the gear shaft is provided with at least two sets, and in two adjacent sets of gear shafts, the small gear on the upper gear shaft meshes with the large gear on the lower gear shaft; the housing is provided with an aviation connector, which is connected to the intrinsically safe electronic control module; the intrinsically safe electronic control module is provided with a wireless transceiver module, and the housing is provided with a wireless antenna, which is connected to the intrinsically safe electronic control module.

[0018] In summary, this utility model has the advantages of reasonable structural design, light overall weight, convenient underground installation, and extended service life. Attached Figure Description

[0019] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of this embodiment.

[0020] Figure 3 This is a schematic diagram of the internal structure of this embodiment.

[0021] Figure 4 This is a schematic diagram of the internal structure of the outer shell.

[0022] Figure 5 This is a schematic diagram of the reduction gear set. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments.

[0024] In practical implementation: such as Figures 1-5 As shown, an intrinsically safe valve controller for mining includes a plastic housing 1, a detachable mounting plate 2 inside the housing 1, and parallel spaced support plates 3 on one side of the mounting plate 2. A reduction gear set 4 is disposed between the mounting plate 2 and the support plates 3. The output end of the reduction gear set 4 has a coaxially disposed sleeve 5, and the end of the sleeve 5 has a groove that matches the valve to be operated. The housing 1 has a control hole corresponding to the sleeve 5, and the sleeve 5 is coaxially inserted into the control hole. An intrinsically safe brushless motor 6 is coaxially connected to the input end of the reduction gear set 4, and an intrinsically safe electrical control module is connected to the intrinsically safe brushless motor 6.

[0025] like Figure 5As shown, the reduction gear set 4 includes an input pinion 41 mounted on the intrinsically safe brushless motor 6 and an output gear 42 coaxially connected to the sleeve 5. A gear shaft 43 is sequentially meshed between the input pinion 41 and the output gear 42. The gear shaft 43 includes a rotating shaft rotatably mounted between the mounting plate 2 and the support plate 3, on which a large gear and a pinion are fixedly mounted. The input pinion 41 meshes with the large gear, and the output gear 42 meshes with the pinion. Two sets of gear shafts 43 are provided; in adjacent sets, the pinion on the upper gear shaft meshes with the large gear on the lower gear shaft. An aviation connector is provided on the housing 1, connected to the intrinsically safe electronic control module. A wireless transceiver module is provided on the intrinsically safe electronic control module, and a wireless antenna is provided on the housing 1, connected to the intrinsically safe electronic control module.

[0026] The outer casing 1 includes a lower casing 11 and an upper casing 12 that are interlocked. The control hole is located on the lower casing 11, and the edge of the control hole extends in a direction away from the upper casing 12 to form a support cylinder 13. The bottom of the lower casing 11 has a support wall 14 surrounding the support cylinder 13. The support cylinder 13 has a plurality of radially arranged reinforcing ribs 15, which connect the support wall 14 and the support cylinder 13. A sealing ring is provided between the sleeve 5 and the control hole. Specifically, a bearing is provided between the sleeve 5 and the control hole. In this way, the support cylinder and the bearing can provide more stable rotational support for the sleeve, thereby allowing the sleeve to apply torque more efficiently and facilitating reliable valve opening and closing.

[0027] Four reinforcing ribs 15 are distributed circumferentially along the support cylinder 13, and each reinforcing rib 15 is provided with at least one screw hole arranged axially along the control hole, the screw hole being located in the middle of the reinforcing rib 15.

[0028] A magnetic rotary encoder is installed between the output shaft of the reduction gear set 4 and the mounting plate 2 or support plate 3, and the magnetic rotary encoder is connected to the intrinsically safe electronic control module. The magnetic rotary encoder provides feedback to the intrinsically safe electronic control module on the rotation angle of the output shaft, i.e., the valve opening degree, facilitating more precise opening control. Furthermore, using a magnetic rotary encoder can extend its service life.

[0029] In this embodiment, the output shaft of the reduction gear set 4 extends upward and approaches the upper housing 12. An arc-shaped window coaxial with the output shaft is opened on the upper housing 12, and a transparent cover plate is sealingly installed over the arc-shaped window. A pointer arranged radially at the upper end of the output shaft is located within the arc-shaped window. Thus, the rotation angle of the output shaft can be indicated by the pointer at the upper end of the output shaft, and this rotation angle is the angle of rotation of the sleeve-operated valve. Therefore, the real-time opening degree of the valve can be directly observed through the arc-shaped window.

[0030] The intrinsically safe electronic control module is connected to a display screen. The upper housing 12 has a display window corresponding to the display screen and is covered with a transparent protective plate. The display screen is located inside the display window.

[0031] In this embodiment, an intrinsically safe brushless motor drives a reduction gear set. The reduction speed of the gear set increases the output torque of the sleeve, thereby controlling the valve's opening and closing. Because the brushless motor uses electronic commutation, it eliminates the risk of mechanical sparks and avoids wear during use, extending its service life. Furthermore, the absence of mechanical contact in electronic commutation makes it more suitable for dusty downhole environments. By using an intrinsically safe brushless motor and an intrinsically safe electrical control module, the electrical control system itself meets intrinsic safety requirements, allowing for the use of a plastic housing for protection. This significantly reduces the overall weight and size, facilitating disassembly and assembly in the well.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mining intrinsically safe valve controller, characterized in that, The device includes a plastic housing (1), a removable mounting plate (2) inside the housing (1), a parallel support plate (3) on one side of the mounting plate (2), a reduction gear set (4) between the mounting plate (2) and the support plate (3), a sleeve (5) coaxially mounted at the output end of the reduction gear set (4), a groove matching the valve to be operated at the end of the sleeve (5), a control hole corresponding to the sleeve (5) on the housing (1), and the sleeve (5) coaxially passing through the control hole; an intrinsically safe brushless motor (6) coaxially connected to the input end of the reduction gear set (4), and an intrinsically safe electronic control module connected to the intrinsically safe brushless motor (6).

2. The intrinsically safe valve controller for mining as described in claim 1, characterized in that, The outer casing (1) includes a lower casing (11) and an upper casing (12) that are interlocked with each other, and the control hole is located on the lower casing (11).

3. The intrinsically safe valve controller for mining as described in claim 2, characterized in that, The edge of the control hole extends in a direction away from the upper housing (12) to form a support cylinder (13). The bottom of the lower housing (11) has a support wall (14) arranged around the support cylinder (13). The support cylinder (13) has a plurality of radially arranged reinforcing ribs (15), which are connected between the support wall (14) and the support cylinder (13).

4. The intrinsically safe valve controller for mining as described in claim 3, characterized in that, Four reinforcing ribs (15) are distributed circumferentially along the support cylinder (13), and each reinforcing rib (15) is provided with at least one screw hole arranged axially along the control hole, the screw hole being located in the middle of the reinforcing rib (15).

5. The intrinsically safe valve controller for mining as described in claim 1, characterized in that, A sealing ring is provided between the sleeve (5) and the control hole.

6. The intrinsically safe valve controller for mining as described in claim 1, characterized in that, A magnetic rotary encoder is provided between the output shaft of the reduction gear set (4) and the mounting plate (2) or support plate (3), and the magnetic rotary encoder is connected to the intrinsically safe electronic control module.

7. The intrinsically safe valve controller for mining as described in claim 2, characterized in that, The output shaft of the reduction gear set (4) extends upward and is close to the upper housing (12). An arc-shaped window coaxial with the output shaft is opened on the upper housing (12). A transparent cover plate is sealed on the arc-shaped window. The upper end of the output shaft has a pointer arranged radially, and the pointer is located in the arc-shaped window.

8. The intrinsically safe valve controller for mining as described in claim 2, characterized in that, The intrinsically safe electronic control module is connected to a display screen. The upper housing (12) has a display window corresponding to the display screen and is covered with a transparent protective plate. The display screen is located inside the display window.

9. The intrinsically safe valve controller for mining as described in claim 1, characterized in that, The reduction gear set (4) includes an input pinion (41) mounted on the intrinsically safe brushless motor (6) and an output gear (42) coaxially connected to the sleeve (5). A gear shaft (43) is sequentially meshed between the input pinion (41) and the output gear (42). The gear shaft (43) includes a rotating shaft rotatably mounted between the mounting plate (2) and the support plate (3). A large gear and a pinion are fixedly mounted on the rotating shaft. The input pinion (41) meshes with the large gear, and the output gear (42) meshes with the pinion.

10. The intrinsically safe valve controller for mining as described in claim 9, characterized in that, The gear shaft (43) is provided with at least two sets, and in two adjacent sets of gear shafts, the small gear on the upper gear shaft meshes with the large gear on the lower gear shaft; the housing (1) is provided with an aviation plug, which is connected to the intrinsically safe electronic control module; The intrinsically safe electronic control module is equipped with a wireless transceiver module, and the outer casing (1) is equipped with a wireless antenna, which is connected to the intrinsically safe electronic control module.

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