Adjustable rotary sensors for a self-restoring fluidic mortar support system
阅读：417发布：2021-02-27
专利汇可以提供Adjustable rotary sensors for a self-restoring fluidic mortar support system专利检索，专利查询，专利分析的服务。并且An adjustable tripod support for the firing tube of a mortar is provided with a digital type of fluidic control system responsive to sensing means which detect a predetermined amount of the azimuth and elevation components of the recoil displacement imparted to the tube during firing. In response to such detection, the fluidic control system functions elevation and aziumth pistons which automatically restore the firing tube to the previously selected sighting inclination. The compressed air required by the fluidic control system is stored in an accumulator arranged to be automatically replenished by the discharge gases generated in the mortar tube during the firing thereof. As the firing tube is subjected to recoil displacement, the rotation of a chordally slabbed control shaft associated therewith serves to unblock one of a pair of sensing orifices for activating the control system to provide the required restoration movements of the firing tube. The combination of chordal edges and sensing orifices in each sensing means can be adjusted to provide a given deadband zone through which each control shaft must be rotated before the respective restoration movement is imparted to the firing tube.，下面是Adjustable rotary sensors for a self-restoring fluidic mortar support system专利的具体信息内容。
1. In an adjustable tripod support for the firing tube of a mortar having a fluidic control system for automatically restoring the tube to a previously selected sighting inclination in response to the recoil displacement encountered during the firing thereof, the combination of, a primary leg having a yoke in pivotal supporting engagement with the firing tube, a pair of secondary legs pivotally engageable with said primary leg for supporting the firing tube at the selected sighting inclination, a first piston having an elongated rod extending therefrom into fixed engagement with said yoke and slidably disposed in said primary leg for imparting elevational movement to the firing tube, a second piston slidably disposed in said yoke for imparting azimuth movement to the firing tube, first sensing means disposed in said yoke and responsive to the elevational component of the recoil displacement of the firing tube for activating the fluidic control system to actuate said first piston until the firing tube is restored to the initial sighting inclination thereof, said first sensing means comprising, a control shaft rotatably disposed in said yoke with one end fixed to the firing tube and the opposite end thereof having a separately rotatable segment thereon, said shaft and said segment each having a transverse chordal surface disposed in adjacent relation and extending in opposite directions to form an angle therebetween, a cylindrical bushing rotatably disposed in said yoke in surrounding relation to said chordal surfaces, said bushing having a pair of sensing orifices through opposite sides thereof in coaxial relation and in respective alignment with said chordal surfaces, and means for releasably locking said rotatable segment to said control shaft with the remote edges of said chordal surfaces selectively positioned relative to said sensing orifices to establish a desired deadband zone through which said control shaft must be rotated prior to unblocking one of said orifices for activating the fluidic control system to actuate said first piston, second sensing means disposed in said primary leg in surrounding relation to said primary leg and responsive to the azimuth component of the recoil displacement of the firing tube for activating the fluidic control system to actuate said second piston until the firing tube is restored to the initial sighting inclination thereof, and means for adjusting said first and second sensing means to delay activation of the fluidic control system until the recoil exceeds a predetermined degree of movement in azimuth and elevation, respectively.
2. The tripod support defined in claim 1 including, first index means on said control shaft for indicating the established deadband zone between said chordal surfaces and said respective sensing orifices, and second index means on said bushing and said yoke for indicating the angular relationship between said deadband zone and the sighting inclination of the firing tube in elevation.
3. The tripod support defined in claim 1 wherein said second sensing means comprises, a chordal surface extending longitudinally along said piston rod to form opposite edges thereon, a cylindrical extension rotatably disposed on said primary leg in surrounding relation to said chordal surface, an adjusting ring coextensive with said cylindrical extension and rotatably disposed in adjacent relation thereto, said ring and said extension each having a radially disposed sensing orifice spaced apart to a greater extent than said opposite edges of said chordal surface, and means for releasably locking said ring to said extension with said orifices selectively positioned relative to said oppOsite edges of said chordal surface to establish a desired deadband zone through which said piston rod must be rotated prior to unblocking one of said orifices for activating the fluidic control system to actuate said second piston.
4. The tripod support defined in claim 3 including, first index means on said cylindrical extension and said adjusting ring for indicating the established deadband zone between said orifices and said edges of said chordal surface, and second index means on said extension and said primary leg for indicating the angular relationship between said deadband zone and the sighting inclination of the firing tube in azimuth.
5. The adjustable tripod support defined in claim 1 including, an accumulator on one of said secondary legs for storing a supply of compressed air for use by the fluidic control system, conduit means between the firing tube and said accumulator for passage therein of the discharge gases generated during each firing of the mortar to replenish the supply of air in said accumulator, and conduit means between said accumulator and the firing control system for passage of the air released from said accumulator.
6. In an adjustable tripod for supporting the firing tube of a mortar in a selected sighting inclination, said tripod including a fluidic control system for automatically restoring the firing tube to the selected sighting inclination thereof in response to the recoil displacement encountered during firing, means for varying the degree of recoil displacement required to activate the fluidic control system for actuating the firing tube in elevation, comprising, a sleeve slidably engageable with the firing tube, a pair of trunnions projecting from opposite sides of said sleeve, a primary tripod leg having a yoke in pivotal engagement with said trunnions, a segment rotatably supported on the outer end of one of said trunnions, a pair of chordal surfaces extending respectively across said one trunnion and said segment in adjacent relation to each other and in opposiste directions to form an angle therebetween, a cylindrical bushing rotatably disposed in said yoke to surround said one trunnion and having a pair of radially extending orifices therethrough disposed in respective alignment with each of said chordal surfaces, and means for releasably locking said rotatable segment to said one trunnion with the remote edges of said chordal surfaces selectively positioned relative to said sensing orifices to establish a desired deadband zone through which said one trunnion must be rotated prior to unblocking one of said orifices for activating the fluidic control system to impart restoration movements to the firing tube in elevation.
7. The adjustable tripod defined in claim 6 wherein a pin extends centrally outward from said one trunnion through said segment to project therefrom, said segment having an arcuate slot of stepped width extending longitudinally therethrough, and said means for releasably locking said segment to said one trunnion comprises a screw having an enlarged head receivable in the larger width portion of said arcuate slot and a body extending therethrough into threaded engagement with said one trunnion whereby said chordal surface on said segment is disposed for limited rotation relative to said corresponding orifice in said bushing when said screw is loosened.
8. The adjustable tripod defined in claim 7 including, a first index mark on the portion of said pin projecting from said segment, a plurality of graduations on the outer end of said rotatable segment disposed for cooperating alignment with said first index mark to indicate the angle between said chordal surfaces in terms of the sighting inclination of the firing tube, a second index mark on the outer end of said cylindrical bushing, a plurality of graduations on said yoke for cooperating with said second index mark to indicate the degree of any change in the sighting inclinaTion of the firing tube in elevation, and gear means for rotating said cylindrical bushing to realign said second index with said graduations on said rotatable segment and thereby reestablish the desired deadband zone in the event of any change in the sighting inclination of the firing tube in elevation.
9. In an adjustable tripod for supporting the firing tube of a mortar in a selected sighting inclination, said tripod including a fluidic control system for automatically restoring the firing tube to te selected sighting inclination thereof in response to the recoil displacement encountered during firing, means for varying the degree of recoil displacement required to activate the fluidic control system for actuating the firing tube in azimuth, comprising, a sleeve slidably engageable with the firing tube, a pair of trunnions projecting from opposite sides of said sleeve, a primary tripod leg having a slidablel piston rod therein terminating in a yoke pivotally engageable with said trunnions, a chordal surface extending longitudinally along said piston rod to form opposed edges thereon, a cylindrical extension rotatably secured to said primary leg in surrounding relation to said chordal surface, an adjusting ring coextensive with said cylindrical extension and rotatably disposed in adjacent relation thereto, said ring and said extension each having a radially disposed sensing orifice spaced apart to a greater extent than said opposite edges of said chordal surface, and means for releasably locking said ring to said extension with said orifices selectively positioned relative to said opposite edges of said chordal surface to establish a desired deadband zone through which said piston rod must be rotated prior to unblocking one of said orifices for activating the fluidic control system to impart restoration movement to the firing tube in azimuth.
10. The adjustable tripod defined in claim 9 wherein said adjusting ring is provided with a pair of oppositely disposed arcuate slots therethrough and said means for releasably locking said ring to said extension comprises a pair of screws having enlarged heads and body portions extending respectively through said arcuate slots into threaded engagement with said cylindrical extension whereby said orifice in said adjusting ring is disposed for limited rotation relative to said corresponding edge on said chordal surface when said screws are loosened.
11. The adjustable tripod defined in claim 9 including, a first index mark on said adjusting ring, a second index mark on said cylindrical extension, a plurality of graduations on one side of said second index mark disposed for cooperating alignment with said first index mark to indicate the angle between said sensing orifices in terms of the sighting inclination of the firing tube, a third index mark on said cylindrical extension in alignment with said second index mark thereon, a fourth index mark on said primary tripod leg, a plurality of graduations on one side of said fourth index mark for cooperating with said third index mark to indicate said deadband zone between said orifices and said opposed edges of said chordal surface in terms of the sighting inclination of the firing tube in azimuth, and gear means for rotating said cylindrical extension to realign said third index mark with said fourth index mark and thereby reestablish said deadband zone in the event of any change in the sighting inclination of the firing tube in azimuth.
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