Ripping equipment of bulldozer

FIELD: construction.

SUBSTANCE: ripping equipment of a bulldozer relates to suspension equipment of machines, for instance, tractors, and is designed for ripping of solid rocks and road surfaces, and may also be used for working of frozen soils. The ripping equipment of the bulldozer comprises a support frame rigidly fixed to the rear part of the tractor, on which there are elements of a parallelogram mechanism hingedly fixed, comprising upper and lower traction rods, hingedly connected with a working beam, in which there is a hole for tooth installation, at the same time ripping equipment is equipped with a hydraulic device of tooth control, which is connected by supply sleeves of high pressure with a hydraulic system of suspension equipment of the tractor and is hingedly attached to the support frame and the working beam. The equipment is equipped with the second upper traction rod, the lower traction rod is made in the form of a supporting board, combined with links adjoining its sides into a unified whole, and the hydraulic device of tooth control represents a hydraulic cylinder arranged with the stem down, which is connected with the lower part of the working beam. The supporting board of the lower traction rod has a trapezoidal cut aimed towards the working beam. The hydraulic cylinder is installed along the axis of device symmetry, and upper traction rods - symmetrically at both sides of it. On the support frame in the centre of its upper part there are two eyes rigidly fixed as distant from each other for installation of the axis of hydraulic cylinder body fixation, and at the edges of the support frame there are brackets rigidly fixed with holes on top and bottom accordingly for axes of upper traction rods and axes of links of the lower traction rod. On the working beam in the centre of its lower part there are two eyes rigidly fixed as distant from each other for installation of the axis of hydraulic cylinder stem fixation, and at the edges of the working beam there are brackets rigidly fixed with holes on top and bottom accordingly for axes of upper traction rods and axes of links of the lower traction rod.

EFFECT: simplified design of ripping equipment, improved efficiency and reliability.

5 cl, 4 dwg

 

The invention relates to attachments machines, such as tractors, and is intended for loosening hard rocks and road surfaces, and can also be used for the development of permafrost.

Known Ripper equipment bulldozer containing rigidly attached to the rear axle of the tractor support frame, on which is pivoted the links of the parallelogram mechanism in the form of upper and lower linkage, pivotally connected with the working beam, which made the hole for the installation of a tooth, the tooth is associated with a hydraulic system mounted on the tractor hydraulic device in the form of two hydraulic cylinders with the rod facing up, the body of which is pivotally connected with a supporting frame, and rods pivotally attached to the upper part of the working beam (see online on the website http://stroy-technics.ru/article/buldozery-rykhliteli article Bulldozers-rippers, Fig. 1.12. Bulldozer with Ripper D3-V-2, p.2). When the depth of the tooth oil is fed into the rod cavity of the cylinders, this requires a total effort of the two cylinders to be sunk a tooth into the ground. When lifting tooth oil is pumped into the piston cavity of the cylinders.

The disadvantages of the known Ripper equipment is the high consumption of the inlet high pressure hoses and wt is a, fill the cylinders, which makes the construction of expensive equipment.

The task of the claimed invention is to cheapen the construction of the device.

The technical result is to simplify the design Ripper equipment without compromising performance and reliability.

This task is achieved by the fact that in the famous Ripper equipment bulldozer containing rigidly attached to the rear of the tractor support frame, on which hinged the elements of a parallelogram mechanism including upper and lower links, pivotally connected with the working beam, which made the hole for the installation of the tooth, thus loosening the equipment is equipped with a hydraulic control device of the tooth, which is connected the inlet of the high pressure hose from the hydraulic system of the tractor and pivotally attached to the support frame and the working beam, according to the invention, equipment is provided with a second top pull, bottom pull is made in the form of a supporting plate, combined with the adjacent to her side links in a single unit, and the hydraulic control device of the tooth is a hydraulic cylinder, set the rod down, which is connected with the lower part of the working beam.

In loosening the equipment bulldozer supports the maintenance plate lower links has a trapezoidal neckline, aimed in the direction of the working beam.

In loosening the equipment bulldozer hydraulic cylinder mounted on the axis of symmetry of the device, and the upper thrust - symmetrically on either side of him.

In loosening the equipment dozer skid in its upper part is rigidly fixed to two spaced apart lugs for mounting the axis of the fixing body of the cylinder, and the edges of the base frame is rigidly fixed to the brackets with the holes in the top and bottom, respectively, under the axis of the upper rod and the axis of the links of the lower links.

In loosening the equipment bulldozer working on the beam at the center of its lower portion is rigidly fixed to two spaced apart lugs for mounting the axis of the mounting rod of the hydraulic cylinder, and the edges of the working beam is rigidly fixed to the brackets with the holes in the top and bottom, respectively, under the axis of the upper rod and the axis of the links of the lower links.

Research conducted on the sources of patent and scientific and technical information, showed that the proposed Ripper equipment bulldozer is not known and should not be explicitly studied the prior art, i.e. meets the criteria of "novelty" and "inventive step".

The proposed device can be manufactured in an industrial environment departments of large and medium machine-building plants using modern is known military technologies, materials and standard equipment that is available to both domestic and foreign industry.

Therefore, the proposed device meets the criterion of "industrial applicability".

We offer a set of essential features gives the claimed device new properties that allow you to solve the problem.

The claimed design Ripper equipment bulldozer optimized so that the hydraulic control device of the tooth is made in the form of one cylinder, and the lower thrust, by combining into a single unit supporting plate and the adjacent parts, is one Assembly unit, instead of two. In a known prototype for the depth of the tooth in the ground oil (working fluid) is supplied in rod cylinder chamber, and in the claimed device in the piston. Due to the fact that the cross section of the piston cavity larger cross-section rod end, declared ripping equipment bulldozer force at the depth of the tooth enough for production work on loosening of the soil. When lifting tooth cylinder develops a much smaller force, since it is necessary only to overcome the weight of the raised details. In this case, the force generated by the hydraulic cylinder when the oil flow into the cavity of the stem.

The proposed loosening about the equipment bulldozer is illustrated by drawings, where presented:

Figure 1 - view of ripping equipment ISO;

Figure 2 - view of ripping equipment side;

Figure 3 - view of ripping equipment from above;

4 is a view of ripping equipment behind.

Declare ripping equipment bulldozer includes a stationary base frame 1, is rigidly attached either to the rear axle of the tractor (to hell. not shown), or directly to the frame of the tractor. On the base frame 2 hinged top two thrust 2 and the lower thrust, containing supporting plate 3 with a trapezoidal neckline, amalgamated with the adjoining side-by-side links 4. The neck plate 3 made by the working beam 5 and is intended for the passage of the hydraulic cylinder when lowering and raising. On the working beam 5 is also pivotally secured their second ends of the upper thrust 2 and sections 4 lower links. In the working beam 5 is made the hole for the installation of the tooth 6. Ripping equipment bulldozer is equipped with a hydraulic control device tooth 6 in the form of a hydraulic cylinder 7, the associated supply high pressure hoses (to hell. not shown) to a hydraulic system mounted on the tractor. The cylinder 7 is a piston cylinder double acting one-way valve 8. The building features. not labeled) hydroc is lindra 7 are articulated to the support frame 2, and the rod 8 downward pivotally attached to the bottom side of the beam 5. The force on the rod 8 and its movement can be directed in both directions depending on which of the cavity is pumped working fluid. Optimal location of the hydraulic cylinder 7 is fixed on the center axis of symmetry ripping equipment bulldozer symmetrical positioning of the upper rod 2 relative to the cylinder 7. On the base frame 1 in the center is rigidly fixed to two spaced apart lugs 9 to install axis on features. not indicated) unit mounting the hydraulic cylinder 7, and the edges of the base frame 1 is rigidly fixed to the bracket 10 with the holes in the top and bottom, respectively, under axis 11 of the upper rod 2 and the axis 12 of the links 4 lower links. The lugs 9 are rigidly interconnected. The bracket 10 is made of two spaced apart parts rigidly connected to each other. In the center of the working beams 5 are two spaced apart lugs 13 to install the axis of the mounting rod 8 of the cylinder 7, and the edges of the working beam 5 is rigidly fixed to the bracket 14 with holes at the top and bottom, respectively, under axis 15 of the upper rod and the axis 16 of the links 4 lower links. Lugs 13 are rigidly interconnected. The bracket 14 is made of two spaced apart parts rigidly connected to each other.

The tooth 6 is nebgen replaceable weld-on protector 17 and removable molded tip 18. The tooth 6 includes an elongated rack (to hell. not labeled)in the upper part of which is a three under each other holes 19, which allows you to change the magnitude of the departure of the tooth 6 for different depths of loosening. In addition, at the bottom of the hole 19 is used to transport position. Secure the tooth 6 to the working beam 5 finger 20.

Offer Ripper equipment bulldozer is used as follows.

The tooth 6 is placed on a working beam 5 by means of the finger 20 to the required penetration position. From the hydraulic system of the tractor is served in the piston cylinder chamber 7, the working fluid (oil), the rod 8 extends, passing the force on the working beam 5, which goes down, recessed tooth 6 in the ground. The tractor starts to move and the tooth 6 loosens the rock along a given trajectory. After completion of the process of loosening served the working fluid in the rod cavity of the hydraulic cylinder 7, retracting the piston rod 8, which makes up the working beam 5, producing vyhloubene tooth 6 of the soil. The supporting plate 3 protects the hydraulic cylinder 7 from being hit by large pieces of soil.

The invention has several advantages:

- reduction of the structure;

- reduction of costs for the process of loosening;

- reliability in operation.

1. Ripping equipment bulldozer containing W is stco attached to the rear of the tractor support frame, on which hinged the elements of a parallelogram mechanism including upper and lower links, pivotally connected with the working beam, which made the hole for the installation of the tooth, thus loosening the equipment is equipped with a hydraulic control device of the tooth, which is connected the inlet of the high pressure hoses to a hydraulic system mounted on the tractor and pivotally attached to the support frame and the working beam, characterized in that the equipment is equipped with a second top pull, bottom pull is made in the form of a supporting plate, combined with adjacent its lateral sides of the links in a single unit, and the hydraulic control device of the tooth is a hydraulic cylinder located the rod down, which is connected with the lower part of the working beam.

2. Ripping equipment bulldozer according to claim 1, characterized in that the supporting plate of the lower thrust has a trapezoidal neckline, aimed in the direction of the working beam.

3. Ripping equipment bulldozer according to claim 1, characterized in that the hydraulic cylinder is installed on the axis of symmetry of the device, and the upper thrust - symmetrically on either side of him.

4. Ripping equipment bulldozer according to claim 1, characterized in that on the support frame in its upper part is rigidly fixed to two spaced others the g from each other lugs for mounting the axis of the fixing body of the cylinder, and on the edges of the support frame is rigidly fixed to the brackets with the holes in the top and bottom, respectively, under the axis of the upper rod and the axis of the links of the lower links.

5. Ripping equipment bulldozer according to claim 1, characterized in that the working beam at the center of its lower portion is rigidly fixed to two spaced apart lugs for mounting the axis of the mounting rod of the hydraulic cylinder, and the edges of the working beam is rigidly fixed to the brackets with the holes in the top and bottom, respectively, under the axis of the upper rod and the axis of the links of the lower links.



 

Same patents:

FIELD: machine building.

SUBSTANCE: ripper contains a hinged frame and a loosening rack pivotally mounted on a hinged frame and connected to the frame through a spring-loaded energy storage device. At that the spring-loaded energy storage device comprises the body and is equipped with a central disk connected via a rod to a ripper stem. The central disk is adjoined on both sides with additional disks with the rods telescopically mounted in the central part, connected in pairs with the brackets mounted on the free ends of the rods along the diameter line, with the adjusting device in the form of hydraulic cylinders which are placed between brackets. The central disk on both sides and the additional disks on the side of the rods are equipped with the concentrically arranged coil springs, the free ends of which are connected to the internal sides of the ends of the body. The ripper is also equipped with the disk of initial spring load and the rear end of the internal side of the accumulator body and connected by means of the swing link to the disk motion control hydro cylinders installed on the body.

EFFECT: increased efficiency of soil ripping due to reduced traction and dynamic loads acting on the base machine, and their transfer to the zone of destruction of soil in a wide range of the frequency of forced oscillations.

6 dwg

Improved ripper tip // 2434998

FIELD: mining.

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

Impact ripper // 2380489

FIELD: mining.

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.

3 dwg

Impact ripper // 2372447

FIELD: construction.

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.

3 dwg

Vibration ripper // 2367747

FIELD: construction.

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.

3 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.

3 dwg

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: 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.

5 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: 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

Gas-dynamic ripper // 2244784

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.

3 dwg

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.

5 dwg

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.

3 dwg

Vibration ripper // 2367747

FIELD: construction.

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.

3 dwg

Impact ripper // 2372447

FIELD: construction.

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.

3 dwg

Impact ripper // 2380489

FIELD: mining.

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.

3 dwg

Improved ripper tip // 2434998

FIELD: mining.

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

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