The invention relates to equipment for loosening frozen ground and frozen bulk materials. Ripper includes fitted on the rod screw the blade to drive it from the equipped engine rotator, the body of which is spring-loaded relative to the frame by hydraulic cylinders its vertical movement. Rod placed inside of a spring-loaded with respect to the frame V corps, kinematically connected to the housing of the rotator through cremallera transmission, parallel slats which entered into toothed engagement with the gear, the axis of rotation which is fixed on the frame. Increases reliability of the Ripper. 1 Il. The invention relates to equipment for loosening frozen ground and frozen bulk materials. Known Ripper , comprising a Central wedge body, inside of which is placed a rotating rod at the exit end of which is mounted the screw blade, and on the sides of the wedge body has an inclined upward drive screws. All of the above equipment is mounted on a suspension frame with its vertical movement. When the device is screw blade, penetrating into the soil, obespechivaetsya and bring it to the surface. Thereby substantially reduced lateral resistance when the depth of all of the working body in the ground. The disadvantage of this device is its relative complexity. So the actuator is radially placed augers are made inside the hollow Central wedge that makes it difficult technical operation and leads to increased energy consumption.Also known baking powder , in which case the rotator screw rod is spring-loaded relative to the movable frame cylinders, causing the screw tip is intermittent. So, in the initial period of his burial he is on the ground under the action of axial forces transmitted to the screw from the rotator, while the process of compression of the spring suspension. When the elastic force of the compression spring exceeds the force of adhesion of the soil with a spiral blade, the whole system of the above elements “shoot” up together with material strung on the blade. Then this cycle must be repeated. An advantage of this device is its efficiency for the destruction of the material is through the use of deformation of the gap, and not the windshield compression that took place in . However, the device , as an object with the cyclicity of the x helical blade lost its contact with the main ground array and to start a new cycle implementation requires a new drilling. In such bounces the ground you get small portions, to apply this process of destruction is appropriate, or when spreading it outwards, or to continue the development of the soil in depth, pre-preparing for this scope of work with free old portions already chipped off of the ground.In this regard, the task of the claimed object is that he, having good qualities selected for the nearest equivalent devices , was devoid of the above disadvantages and would not lose in the process of destruction of the soil of his contact with all the ground array. In other words, the goal is: when the internal cyclicity work helical blades offer the Ripper to give such new differences (including from other similar devices), which would be considered as the process of destruction of the soil is really continuous with constant contact Ripper with the ground. This task is achieved by the fact that the Ripper, including fitted on the rod screw the blade to drive it from the equipped engine rotator, the body of which is spring-loaded relative to the frame by hydraulic cylinders its vertical movement, the rod is placed inside the spring otnosilas, parallel slats which entered into toothed engagement with the gear, the axis of rotation which is fixed on the frame.The above is illustrated by the drawing, which shows the following: the Central wedge body 1, in bearings of which is placed a rod 2 with the outer spiral blade 3. The drive rod 2 comes equipped from the engine 4 rotator, the housing 5 which is connected with the frame 6 is supplied through the metal elastic elements 7. Wedge body 1 is suspended from the frame 6, with the drive from the hydraulic cylinders 8, by means of springs 9. In addition, the housing 1, 5 wedge rotator and kinematically linked by cremallera transmission, each of which includes two parallel spaced in the mirror each other, display rack, one of which 10 is bonded with wedge housing 1, and the other 11 - case 5 rotator rod 2. Between racks 10 and 11, in engagement with them the gear 12, the axis of which is fixed to the frame 6.Does the proposed device is as follows. From the actuator rotation receives the rod 2 with a screw blade 3, which when exposed to the cylinders 8, and through them and the frame 6 will affect developed ground. This frame 6, lane is Kalenova in a static position status will be compressed, rapidly pulling the screw blade 3, the rod 2, the housing 5 of the rotator, the engine 4. The movement of these elements down faster frame 6 will continue to until the force of the elastic elements 7 will not become greater strength of adhesion of the material, is threaded on the screw blade 3. When this happens, the elastic elements 7 will open and the system: screw blade 3 - bar 2 - case 5 rotator - engine 4 will hit up having a separation material, a keen blade 3. Note that the described process works helical blade 3 - bar 2 - case 5 rotator - engine 4 together with their elastic elements 7 is completely identical to what took place in the object . However, a distinctive feature of the operation of the proposed device from the object  is that the cyclical movement of the screw blade 3 - bar 2 - case 5 rotator - engine 4 and the elastic elements 7 up and down at the same time causing the reverse movement, i.e., up-down V of the housing 1 and the spring 9. The latter is achieved by the presence and work cremallera transmission: gear racks 10 - gear 12 - toothed rails 11. So, when moving engine 4 - housing 5-rotator - rod 2 helical blade 3 down with them there redout opposite direction of movement (i.e., up) gear rails 10, fastened to the sides V of the housing 1. While moving the wedge body 1 up accompanied by a compression of his suspension to the frame 6 of the springs 9. Further, when “the shot” helical blade 3 - bar 2 - case 5 rotator - engine 4 up happens reverse the movement of the rails 11-10 and “shot” already down V of the housing 1 and the spring 9. So, drilling into the ground blade 3 is accompanied by a move up wedge body 1, when the screw rod 2 tears off the ground and moves up, the outer wedge moves down opposite. Thus, the working body of the Ripper constantly affects the soil alternately the two parts of the screw blade 3 and the wedge housing 1. In this work the screw blade 3 removes drag when moving wedge body 1 downward, and the vertical oscillations of the wedge reduces the lateral resistance on his ribs. In fact, these fluctuations wedge housing 1 perform alternative role of energy-intensive side of the screws in the device . In the device there are new design elements: a spring 9, the rack 10, 11 gear 12, which define a new operation previously known for the La. Auth. St. No. 1530694 A1. Publ. in bull. No. 47, 19892. A. C. Of Shuvalov. Ripper frozen materials. Auth. St. No. 861505. Publ. in bull. No. 33, 1981
ClaimsRipper, including fitted on the rod screw the blade to drive it from the equipped engine rotator, the body of which is spring-loaded relative to the frame by hydraulic cylinders its vertical movement, wherein the rod is placed inside the spring relative to the frame V corps, kinematically connected to the housing of the rotator through cremallera transmission, parallel slats which entered into toothed engagement with the gear, the axis of rotation which is fixed on the frame.
FIELD: mining industry; civil engineering.
SUBSTANCE: invention can be used in rippers of gas-dynamic action for loosening firm and frozen soils. Proposed gas-dynamic ripper has hollow rod housing installed coaxially and connected mechanically with housing of screw head with exhaust holes, vertically installed gui9de shaft for fastening on frame of base machine on which bracket is installed for longitudinal displacement with fitted-on bushings for connection with shaft, cocks to control delivery of compressed gas and pipelines to deliver compressed gas from supply source to gas distributor made in form of pneumatic accumulator with hollow shank secured on hollow rod housing, and ring housing with three ring channels in its wall rigidly connected with bracket, coaxially installed inner and outer supply pipes, exhaust control valve installed in screw head installed for limited axial displacement inside housing of screw head and interacting with seat for communicating ring clearance between seat and inner supply pipe with exhaust holes in housing of screw head are provided with control space and inner supply pipe arranged in control space, spring to press valve to seat, and piston for forced displacement of gas installed inside hollow rod housing for limited axial displacement. One of ring channels in wall of ring housing communicates through cock with pipeline to deliver compressed gas from supply source, and it communicates through radial channels made in ring housing through inner supply pipe with valve control space to communicate ring clearance between seat and inner supply pipe with exhaust holes in screw head housing. Space of pneumatic accumulator communicates with atmosphere and with supply source through compressed gas supply control cock, pipelines, ring channel with radial channels in wall of ring housing, radial channels and inner space in shank. Ring clearance between seat and inner supply pipe communicates with supply source through compressed gas supply cock, pipelines, ring channel with radial channels in wall of ring housing and outer supply pipe. Housing of pneumatic accumulator is made in form of hollow cylinder with lower and upper flanged parts provided with concentric holes for coaxial fastening of upper flanged part of pneumatic accumulator to flanged part of hollow shank, for coaxial fastening of lower flanged part of pneumatic accumulator to flanged part of hollow rod housing made at a distance from its upper end face equal to height of housing of pneumatic accumulator. Seat installed on upper end face of hollow rod housing for limiting upwards movement of forced gas displacement piston. Spring for limiting downward movement of forced gas displacement piston is installed on upper end face of seat to limit upward movement exhaust control valve. Outer supply pipe is installed in central hole of forced gas displacement piston.
EFFECT: increased efficiency.
FIELD: mining industry, particularly gas-dynamic devices for layered ground cutting.
SUBSTANCE: device has hollow rod body of central ripper kinematically connected to discharge bush coaxially thereto, screw bit body connected to discharge bush coaxially thereto, vertical guiding shafts to be secured to the base machine frame. Corbels are connected to guiding shafts so that corbels may perform longitudinal movement. Corbels have bushings for connecting thereof with guiding shafts. Device also has protective shield with central orifice for hollow rod body passage, valves to control delivery of compressed air and pipelines for compressed air supplying from source to gas distribution mechanism formed as the main operative chamber secured to upper end of hollow rod body and having hollow tail inserted in through central orifice of annular body rigidly connected to corbels. Annular body has central upper annular channel with radial channels and central lower annular channel with radial channels. Annular body may perform limited axial displacement inside discharge bush and may cooperate with lower end of valve rod body to establish communication between annular gap defined by rod body and central supply pipe, and exhaust orifices of discharge bush. Annular body comprises control chamber and central feeding pipe arranged into the control chamber, spring for valve pressing to lower end of rod body of central ripper. The device is provided with four additional gas-dynamic rippers with tails installed in through coaxial orifices formed in the annular body. Upper coaxial channel with radial channels and lower coaxial channel with radial orifices are formed around each through coaxial channel. One upper coaxial annular channel communicates through said valve with pipeline for compressed air supplying from the source and communicates with operative chamber by means of radial channels formed in annular body and through radial channels and inner cavity of the tail. Each other upper coaxial annular channel communicates with central upper annular channel through radial channels in annular body. One of the lower coaxial annular channels communicates with pipeline supplying for compressed air through the valve and with valve control chamber by means of radial channels made in annular body through annular groove created in the tail and through central supplying pipe to establish communication between annular gap defined by rod body of additional ripper and central supplying pipe, and exhaust orifices in discharge bush. Each other lower coaxial annular channel communicates with central lower annular channel through radial channels of annular body.
EFFECT: increased output.
3 cl, 6 dwg
FIELD: mining and building, particularly for layered ground cutting by impulse compressed gas pressure application to the ground.
SUBSTANCE: device has load-bearing frame with vertical guiding shafts and cams connected thereto, gas-dynamic rippers with tubular rods. Connected to rods are screw heads with exhaust orifices, discharge bushes, working chambers, annular cases of gas-distribution units connected to vertical guiding shafts by means of brackets and enclosing vertical guiding shafts of sliding bushes. The device also has protective screen composed of several sections located at different levels along device height, movably connected to lower ends of vertical guiding shafts and eccentrically located relative central orifices adapted to receive tubular rods of gas-dynamic rippers formed in each protective screen section. Device also has supply system for -dynamic rippers. Upper parts of vertical guiding shafts may perform rotation through 0°-360° with fixation thereof and are installed in concentric orifices formed in load-bearing frame. Each cam has orifice for cam fixing in determined position. The orifices are eccentric to longitudinal vertical guiding shaft axis. Load-bearing frame also has concentric orifices formed with regard to each concentric orifice adapted for vertical guiding shaft installation. Concentric orifices of load-bearing frame are used for fixed cam connection with load-bearing frame. The connection is made as locking bolt installed in cam orifice and in one concentric orifice of loaf-bearing frame.
EFFECT: increased capacity.
2 cl, 6 dwg
FIELD: building equipment, particularly adapted to develop frozen and firm ground.
SUBSTANCE: device has tractor, executive tool formed as band with wedges secured thereto, executive tool frame, which connects the executive tool with tractor, and power source installed on executive tool frame. Device additionally comprises gantry connected to the tractor, vertical frame secured to gantry and cantledge lever. One lever end is pivotally connected to vertical frame. Central lever part is freely supported by executive tool frame through roller. Cantledge is installed on free lever end. Vibrator is rigidly secured inside executive tool frame, wherein the executive tool frame is three-dimensional and connected to vertical frame to perform rotation relative tractor in horizontal and vertical planes. Wedges are solid and cutting faces thereof are oriented along tractor travel direction axis. Band and cutting faces of the wedges form cutting disc having round continuous cutting edge.
EFFECT: increased capabilities due to possibility of ground cutting parameters regulation.
FIELD: mechanical engineering.
SUBSTANCE: the bearing-rotary device in the engineer track vehicle is installed in the nose section of the chassis on the side of the tower of and positioned in the armored hull, it is fastened in cantilever in the tower and made in the form of a low-profile straight cylinder with a bottom shaped as a ball segment. An opening is made in the segment on the side of the tower for disposition of the drive of the bearing platform. The upper part of the portal is cylinder-shaped and provided with a boom rotation mechanism. An ogee is made on the retractable section of the boom, at the end of the projecting part positioned are ears with an axle installed on which are the excavator dipper and the tooth-ripper positioned under the excavator dipper for provision of separate or joint operation by formation of a gripping working member. The wall of the retractable section positioned on the opposite side of the ogee is additionally provided with a cargo-catching hook hanger for applying hoist slings to the cargo. Brackets are made on the lateral walls of the retractable section, fastened in whose ears are two short-range hydraulic cylinders linked with the tooth-ripper through a leverage with formation of a drive for turning and fixing the shaped cutouts for arrangement of the hydraulic cylinders of the tooth-ripper drive at a shift of the boom from the operating to traveling position are made in the lateral walls of the boom bearing section on the side of the retractable section.
EFFECT: expanded functional potentialities of the vehicle, enhanced protection of the bearing-rotary device.
6 cl, 12 dwg
FIELD: mining industry.
SUBSTANCE: invention can be used in working members of mining and earth-moving machines, particularly, in machines for digging hard and frozen soils. Proposed ripper point for breaking hard and frozen soils has shank with slot for fastening, and wedge-like working part formed by front end surface, two side surfaces and rear surface. Working part of front end surface located in place of intensive wear is reinforced along longitudinal axial line H-H by three of stress concentrators, being round elements projecting over front end working surface and dipped into body of point. Distance L between concentrators in row and distance 1 between rows is equal to triple value of their diameter.
EFFECT: reduced effort to applied to small soil, reduced power consumption for ripping, increased service life of ripper point.
SUBSTANCE: invention concerns ground development by diggers and can be applied in mining, in construction for communication channel and line laying in hard and frozen soil and rock. Vibration ripper includes basic machine, parallelogram suspension, bearing beam 3, struts 5 with ripping cogs, vibration exciters. Articulated supports 8 are mounted at the top part of struts 5 and linked to resilient element 9. Resilient element is made in the form of pneumatic cylinder 9 including two equal chambers encasing force variation pistons 10 connected over stocks 11 and control rods 12 to top parts of struts 5. Each pneumatic cylinder chamber features volume variation pistons 13 connected by concentric stocks 14 over links 15 to hydraulic cylinders 16 controlling chamber volume and mounted at the ends or pneumatic cylinder 9.
EFFECT: enhanced efficiency of ground ripping.
SUBSTANCE: invention is related to construction and mining, and may be used in development of hard rocks, firm and frozen soils. Impact ripper includes basic machine, equal-arm lever mounted on hinged frame with main and additional pneumatic hammers, cavities of which are separated with piston-strikers, and air-distributing system that contains air distributor 12 and air manifold. Air distributor is arranged in the form of body and has rotor 13, which rests with journals via bearings 14 and 15, installed in bodies of couplers 16 and body of air distributor. Inside rotor 13 there are two non-communicating holes 17, arranged along radial lines. On generatrix of rotor 13 there are grooves 18, which are connected to radial holes 17. In journals of rotor 13 there are channels 19, which connect holes 17 to bores and channels 21, arranged in bodies of couplers 16. One of rotor 13 journals is connected via flanged coupler 22 to electric motor 23.
EFFECT: improved efficiency of ripper operation, simplification and increase of operation reliability.
SUBSTANCE: impact ripper consists of base machine, of mounted frame 1, of hydro-cylinder and pneumatic hammer 3. Pneumatic hammer 3 contains a case with piston-die 5 and tooth 4 installed inside. The ripper is equipped with at least one beam 6 connected to mounted frame 1 by means of rotation axle 7 and balance weight 8. Also pneumatic hammer 3 and balance weight 8 are arranged on beam 6 and designed to travel along it.
EFFECT: increased efficiency of soil ripping and reduced dynamic loads affecting base machine.
SUBSTANCE: ripper tip includes replaceable tooth and attached seat in top cover of ripper tip. Ripper tooth is protected against rotation within the above top cover of ripper tip owing to locking heavy-shrink fitting so that the replaceable ripper tooth does not rotate when it is being used. Locking heavy-shrink fitting prevents penetration of solid particles into the gap between the walls of the above tooth and the above attached seat. Tooth has locking cone-shaped stock, and the above seat is provided with cone-shaped hole to be adjoined to the above locking cone-shaped stock. Tooth is cone-shaped and ends with a tip. Tip is made from high-strength material. Ripper tooth includes head section made at least partially from high-strength material. Top cover and ripper tooth form conjugation between seat and stock of ripper tooth having the corresponding shape; at that, seat and stock of ripper tooth have inner cone for formation of clamping cone between top cover and tooth; at that, ripper tooth is removed from cover in case of failure of clamping cone. Seat with inner cone forms some part of section for arrangement of ripper tooth in the cover, and the above stock of ripper tooth having the corresponding shape forms the part of ripper tooth. In stock of ripper tooth and section for arrangement of ripper tooth there made are through transverse channels the axial lines of which are aligned in case of fixture in the seat of stock of ripper tooth, which allows inserting the retaining pin. Head section of ripper tooth includes outward protruding arm enabling removal of ripper tooth. Section for arrangement of ripper tooth includes displacement hole that passes from external section of ripper tip to the area of base of the above seat, which allows displacing the tooth at available corresponding tool.
EFFECT: improving wear resistance and service life and economic effectiveness.
21 cl, 14 dwg