Turn drive

FIELD: mechanics.

SUBSTANCE: invention can be used in devices designed for turning in a horizontal or vertical plane. The turn drive contains a tooth rim meshing with two identical main gears; the said rim is assembled on a turning portion of the object, this turning portion is installed with a support component on the base whereon an electric motor, a brake mechanism and a reducer are arranged. The electric motor via a coupling is connected to an input shaft of the reducer which includes a frictional mechanism to limit a maximum torque at the input shaft of the reducer, self braking worm gear and two differential mechanisms. Each of the differential mechanisms is made as a planetary drive equipped with an epicyclic gear, a sun gear, a carrier and satellites. One of the main gears is secured to the shaft made as one whole with the carrier of the first planetary gear, the axis of which is geometrically coupled with the central axis of the latter. The other main gear is fixed on the shaft installed in the case of the reducer; whereon the gear is attached meshing with the gear made as one whole with the epicyclic gear of the first planetary gear mechanism. The sun gear of the second planetary gear mechanism is connected to the shaft of the motor; epicyclic gear of the planetary gear mechanism by means of tooth meshing is kinematically tied to the above said friction mechanism. The sun gear of the first planetary gear mechanism is secured on the shaft which is kinematically tied with the carrier of the second planetary gear mechanism via the said self braking worm gear.

EFFECT: increased reliability of operation, improvement of dynamic and operational characteristics of a turn drive.

6 cl, 7 dwg

 

The invention relates to mechanical engineering and can be used in devices designed to implement pivoting movement in a horizontal or vertical plane, in particular in devices for turning platforms jib cranes, drives rotation launchers weapon type torpedo.

There are many drives (lifting mechanism), containing a geared motor and a safety device mounted directly on the input, the high-speed shaft of the reducer (see, for example, Alexandrov M.P. Lifting-transport machines. Ed. 4-E. Textbook for high schools. M: "High school", 1972, s-214, is on s). As a safety device known drive containing the disk friction clutch Assembly.

However, a large moment of inertia of the safety device to be installed directly on the input, the high-speed shaft of the gearbox, leads to a significant increase in moment of inertia reduced to the motor shaft, which degrades the dynamic performance of the drive.

Famous swing drive diesel-electric crane KDE-161, containing mounted on the supporting and rotating (moving) parts of the object, engine braking device, gearing, friction mechanism to limit the maximum torque on the input VA is in gear and the gear link while the engine is connected with the input shaft of the gear on the output shaft which enshrines the fundamental gear that is in mesh with the toothed element (peasants VI, Rednikov, VA cranes rail move: a Textbook for technology. schools W.-D. transport. - 4th ed., revised and enlarged extra - M.: Transport, 1978, s, RES).

However, the known drive rotation has a relatively low dynamic performance.

Also known swing drive launcher weapon type torpedo (Description textrange torpedo tubes TTA-53-BES. - M.: Voenizdat, 1964). The launcher comprises a base (support), made with the possibility of fixing on the foundations of the vehicle, a rotary part mounted on said base with the possibility of rotation and fixation in a given position relative to the vertical axis, and the drive rotation of the rotating part. Swing drive contains senatormenendez a worm gear, locking swivel part in the "travelling", "downloads" and "combat", and the electrical contact of the control circuit launcher mounted on the rotary part, which allows the shot only when the angle of fire.

However, the known drive rotation has a low load capacity.

The closest in technical essence to allow jemym invention is an actuator for rotating tower crane according to patent RU 2232127 C1, VS 23/84, 2004 Known swing drive contains mounted on the bracket mounted on the rotary platform of the crane, the engine braking device and the gearbox. While the engine is connected with the input shaft of the gear on the output shaft which enshrines the fundamental gear that is in mesh with a toothed rim mounted on the rotary device. The brake device is made with the possibility of installing a handle for turning the turntable manually during transportation, operation and dismantling.

However, the known drive rotation does not suggest a safety device for limiting the transmitted torque and protect the parts from damage when possible overloads in excess of the allowable strength conditions.

The problem solved by the invention is the creation of drive rotation, providing increased load capacity, reducing weight and performance and at the same time providing improved dynamic characteristics of the actuator rotation.

This problem is solved due to the fact that the drive rotation, containing mounted on the support and rotatable parts of the object, engine braking device, reducer and the gear element, and the engine is connected with the input shaft of the gearbox, the output is om shaft which enshrines the fundamental gear, located in engagement with the toothed chain according to the invention additionally contains identical fundamental gear that is in mesh with the toothed element. This gearing includes a friction mechanism to limit the maximum torque on the input shaft of the gearbox, Sanatornaya worm gear and the first and second differential mechanisms. Each of the differential mechanisms is made in the form of a planetary gear set having epicycle gear, drove and satellites. One of the indigenous gears fixed on made in one piece with the planet carrier of the first planetary gear shaft, the axis of which is geometrically aligned with the Central axis of the latter. Another fundamental gear fixed on the prescribed of the housing shaft, which is fixed to the gear that is in mesh with the gear, made in one piece with epicycle gear of the first planetary gear set. The sun gear of the second planetary gear connected to the motor shaft. Epicycle gear of the second planetary gear with gear kinematically connected with the said friction mechanism. The sun gear of the first planetary gear mounted on a shaft which is kinematically connected with the planet carrier of the second planetary gear set through the mentioned samotomas the Yuexiu a worm gear.

Together with this, the engine braking device and gearbox are mounted on the supporting part of the object, and a gear element mounted on the rotary part of the object.

In addition, the engine braking device and the gearbox can be mounted on the rotary part of the object, and the timing element can be mounted on the supporting part of the object.

In an embodiment, the actuator rotation as the gear element comprises a gear rim.

In another embodiment, the actuator rotation as the gear element comprises a gear sector.

With this drive rotation as the friction mechanism includes a friction clutch comprising friction elements, one of which is stationary relative to the housing, and the other is installed on the shaft, which is kinematically connected with the mentioned gear with epicycle gear of the second planetary gear set. When this friction clutch is arranged to open its frictional elements when operating in the manual mode of the drive.

The technical result of the use of the invention is that it provides improved reliability of operation. This is due to the fact that the claimed invention while minimizing the mass and size parameters of the drive elements rotate allows you to ensure the transmission is in high torque rotation. Together with this, the invention provides improved dynamic and operational characteristics of the actuator rotation.

Figure 1 shows the kinematic diagram of the drive rotation; figure 2 - device differential mechanism drive gear rotation, defined by the input shaft of the gearbox, a longitudinal section; figure 3 is a device of the differential mechanism and Sanatornaya worm gear reducer drive rotation, longitudinal section; figure 4 is a device of the friction drive mechanism rotation, longitudinal section; figure 5 - location of projection (tenon) of lead, used to work in manual mode actuator, relative to the master drive in the operating condition of the friction mechanism, the section a-a of figure 4; figure 6 shows a launcher weapon type torpedoes, the position of the "travelling", General view; figure 7 is a view in plan (CBP conventionally not shown).

In the embodiment of the invention, the actuator rotation comprises a gear rim gear link) 1 which engages with two identical indigenous gears 2 and 3. The toothed rim mounted on the rotating (moving) part 4 installed via the supporting device 5, made for example in the form of a roller radial bearing with intersecting axes of the cylindrical rollers, the supporting part 6. The last is also mounted engine (for example, the motor 7 with the brake device 8 and gear 9. The motor 7 through the coupling 10 is connected with the input shaft 11 of the reduction gear. The gear 9 includes a friction mechanism 12 to limit the maximum torque on the input shaft 11 of the reduction gear, Sanatornaya a worm gear that contains the worm wheel 13 with the worm 14, and two differential mechanism. The latter is in the form of a planetary gear, respectively 15 and 16. The planetary gear 15 contains epicycle gear (in other words, the external gear wheel of the planetary gear) 17, a sun gear 18, the carrier 19 and the satellites 20. Planetary gear (i.e. differential mechanism) 15 distributes the forces (torques) between indigenous gears 2 and 3. External loads are seen connected to the planet carrier 19 of the planetary gear 15 by the worm 14 Sanatornaya worm gear and is no longer transmitted. The planetary gear 16 contains epicycle gear 21, a sun gear 22, drove 23 and 24 satellites. Fundamental gear 2 is fixed on made in one piece with the planet carrier 19 of the planetary gear 15 to the shaft 25, the axis 26 which is geometrically aligned with the Central axis of the planetary gear 15. Fundamental gear 3 mounted on the manner prescribed in the housing 27 of the gear 9 to the shaft 28, which is fixed to the gear 29, finding the I in mesh with the gear 30, made in one piece with epicycle gear 17 (i.e. made in one piece with being in engagement with the satellites of the outer gear of the planetary gear) of the planetary gear 15. The sun gear 22 of the planetary gear 16 through the shaft 11 and the sleeve 10 is connected with the shaft 31 of the motor 7. The friction mechanism 12 is mounted on the shaft 32, which is fixed to the gear 33 which engages with the gear 34 made, for example, in one piece with epicycle gear 21. Thus, the epicycle gear 21 of the planetary gear 16 is kinematically connected with a friction mechanism 12. Essentially epicycle gear 21 of the planetary gear 16 is held by the brake (friction mechanism that limits the maximum torque on the input shaft 11 of the reduction gear 9 and thereby perform the function of safety devices. The sun gear 18 of the planetary gear 15 through the shaft 35, the worm wheel 13, the worm 14 and the shaft 36 is kinematically connected with the planet carrier 23 of the planetary gear 16. In the embodiment of the invention, the actuator rotation provides rotary movement in a horizontal plane.

In other embodiments, execution (not shown) as a timing element 1 actuator rotation may include a toothed sector, for example, when it is not required to provide full rotation (i.e. rotation system-easy installation the I) of the rotating part relative to the vertical axis or in a variant, when the actuator provides rotary motion (essentially swing in a vertical plane and the timing link is located in the vertical plane.

Possible implementation, when the motor 7 with the brake device 8 and gear 9 mounted on a support (static) part of the object, and the toothed rim gear link) 1 - on the turning (moving) parts of an object (not shown).

In an embodiment as a friction drive mechanism 12 turn contains a friction clutch comprising friction elements or disks 37 and 38. Friction elements 37 is fixed in a housing 39 mounted stationary relative to the housing 27 of the gearbox 9. The friction elements 38 mounted on the sleeve 40, is installed using a slotted connection with the possibility of longitudinal movement on the shaft 32. The shaft 32 at one end is connected to a lead 41 with element 42 of the engagement made with the possibility of interaction with the corresponding (response) element 43 of the removable engagement of the arm 44, which is used to work in the manual mode of the drive.

A friction clutch 12 is made with the possibility of disconnection of the friction elements 37 and 38 when the manual actuator. For this purpose, in the embodiment of the invention the shaft 32 provided with a stop 45, interacting with the disc support 46 and installed using a slotted link is at the end of the shaft 32, the leading disc 47 having conical sockets (holes) for the intermediate balls 48, and a support disk 49 with a glass of 50 and a cylindrical spring 51 mounted inside the Cup 50 between the body of the last disc and a support 46. Effort tucked up spring 51 is regulated by the nut 52. In the embodiment of the invention the stop 45 is made, for example, in the form of a split ring. The lead 41 at the same time serves as a support shaft 32 and has a flange "b", made with spaced evenly around the circumference, for example, three cylindrical holes intermediate the balls 48 and the projection (tenon), enters into the hollow "d", performed on the master disk 49. In the absence of external influences on the leash 41 intermediate the balls 48, mounted in the flange holes "b" leash, are in corresponding conical holes (holes) "and"executed on the master disk 47, and have a certain freedom of movement (along the longitudinal axis of the respective hole).

In the embodiment of the invention, the actuator rotation serves as a drive rotation launchers) weapon type torpedo. The rotary part 4 PU made with the possibility of installation on it United in a block (in other words, package, or module) transport-launch container (TLC) with torpedoes (antitorpedo). On the supporting portion 6 inside the last set is MS electrical contact (essentially, limit switch) 53 of the control circuit launcher with the ability to interact in the extreme angular positions of the rotating part 4 resetting the stops 54, mounted on the rotary part 4. In an embodiment resetting the stops made in the form of fingers, and the rotary part 4 are located along the circumference (i.e. at different angles) holes (sockets) with the opportunity to install the resetting stops (fingers) 54. In the embodiment of the invention the nest is made on the movable ring of the bearing 5. Thanks to this performance by a simple reinstall of the fingers 54 is provided adaptability PU for right and left sides of a surface ship and sets the rotation angle of the rotary support, the "combat" position PU (i.e. corner of the start torpedoes). The uniform limit switch 53 provides a signal to stop the drive of the rotation as the PU "travelling", and on any given angles start.

Swing drive works as follows.

When turning on the drive motor 7 of the rotating PU torque is transmitted from the motor through the planetary gear 16 and senatormenendez a worm gear to the sun gear 18 of the planetary gear 15 which engages with satellites 20. The environment is a great effort applied to the satellites 20, is balanced by the reaction of district efforts to drive rod 19 and epicycle gear 17, which form they torques, aimed in different directions. The moment of rotation epicycle gear 17 through gears 30 and 29 is transmitted to a radical gear 3 and the moment of rotation of the carrier 19 is passed directly to the root of the gear 2. Indigenous gears 2 and 3 rotate in the same direction with equal speed, because it engages with one of the toothed rim 1. Its final drive ratio gear pair including gears 29 and 30, selected on the basis of the power ratio of the drive rotation depending on the direction (direct from the motor side and the opposite side of the toothed rim) maximum load to ensure equal load on both indigenous gears 2 and 3 than achieved the minimum dimensions of the actuator rotation at the increased load placed on the launcher unit (package) TPK.

With the approach of the rotary part 4 PU to "combat" the position of the electrical contact (limit switch) 53 communicates with resetting the stop 54 mounted in the position specified for a given surface ship combat" position PU (i.e. a given corner of the start), and outputs a signal to stop the drive of the rotation. Launches the installation is ready for production start torpedoes (torpedoes).

When returning PU in the position of "travelling" after turning on the drive motor 7 turning resetting the stop 54 moves away from the electric contact (limit switch) 53 of the control circuit PU and under the action of spring-loaded zero-installer (not shown) returns (installation) electrical contact (limit switch) 53 to its original position.

With the approach of the rotary part 4 launchers to the position of "travelling" another perestanavlivaya emphasis 54 affects the electrical contact (limit switch) 53, which outputs a signal to stop the motor 7 of actuator rotation. When triggered, the electric contact (limit switch) 53 disconnects the motor 7 and comes in its brake device 8. Further rotation is restricted to a rigid support of the corresponding resetting of the stop (finger) 54 in the response element on the rotary part (not shown). When triggered, the limit switch position information of the rotating part of VS is supplied to the control system.

The friction mechanism to limit the maximum torque on the input shaft 11 of the reduction gear 9 is as follows.

In the operating condition of the friction mechanism (safety device) 12, a cylindrical spring 51, leaning through the disc supports the 46 and split ring (focus) 45 on the shaft 32, through the body of the Cup 50 compresses the friction elements (disks) 37, 38 mounted respectively on the fixed yoke 39 and the sleeve 40 is moved along the spline shaft 32. The force of compression cylindrical springs 51 is regulated by the nut 52. The torque transmitted from the sun gear 22 on the carrier 23, causes the appropriate time on the epicycle gear 21, which through gears 34 and 33 is transmitted to the shaft 32 and held by a friction mechanism, the outer friction elements (disks) 37 which have a splined connection with the yoke 39 and the inner friction elements (disks) 38 through the sleeve 40 with the shaft 32. Upon reaching the maximum allowable torque (friction torque of the friction clutch) shaft 32 begins to rotate, thereby limiting the torque of the input shaft 11 of the reduction gear 9.

Under normal operating conditions, i.e. when the specific project normal (accident-free) conditions, the moment of resistance to rotation of the rotating part 4 of the toothed rim 1 is transmitted to the indigenous gears 2 and 3, mounted respectively on the output shafts 25 and 28 of the gear 9. On the input shaft 11 of the reduction gear 9 comes a moment that through the planetary transmission 16 includes drove 23, 24 satellites, epicycle gear 21 and the sun gear 22, and then through the shaft 11 and the sleeve 10, is transmitted to the shaft 31 of the motor PI this epicycle gear 21 remains stationary, since during normal operation of the drive withheld epicycle gear 21 of the friction clutch (friction mechanism) 12 because of the toothed gear comprising gears 33 and 34, more of the time of actuation of the friction clutch shown to epicycle gear. Thus, in normal operation, the drive of the rotation elements of the friction clutch 12 were removed from the chain drive and their moments of inertia does not affect the normal operation of the latter.

When increasing the torque on the shaft 31 of the electric motor 7 (for example, when excess to drive starting torque), the torque on the epicycle gear 21 is larger than the torque of the friction clutch 12 with regard toothed gear comprising gears 33 and 34. When this occurs, the rotation shaft 32 of the friction mechanism (friction clutch) 12 thus, the torque on the input shaft 11 of the reduction gear 9 does not exceed the allowable values.

Thus, by reducing the moment of inertia reduced to the motor shaft, the drive rotation provides improved dynamic performance.

When turned off, the rotation of the rotating part of the object can be performed in the manual mode of the drive.

To work in manual mode actuator on the shank 41 leash set removable handle 44. During the rotation of the removable arm 44, i.e. the application to the lead 41 IOM is the rotation leash 41 "rolling out" smart balls 48 of the slots (holes) "and" master disk 47. Intermediate the balls 48, interacting with the support surfaces of the master drive 47 and the support disk 49, press the spring-loaded Cup 50 of the sleeve 40. Open friction elements or disks 37 and 38 of the friction clutch. In the disconnection of the friction elements of the shaft 32 is released from fixation relative to the housing 27 of the gearbox. Thus, when the manual actuator of the friction clutch 12 is automatically turned off at the beginning of the rotation of the lead 41 by a compression spring 51 glass 50, which is moved by the rotation bodies (intermediate balls) 48, "vymatyvanii" of the holes (slots) "and" master disk 47. After the rotation of the lead 41 through projection (tenon), interacting with the wall of the hollow "d"is transmitted to the host disk 47 provided by the splined connection at the end of the shaft 32, and hence the shaft 32. Starts to rotate the gear 33, transmitting motion through the gear 34 on the epicycle gear 21 of the planetary gear 16 and then through the satellites 24, drove 23, the shaft 36, the worm 14 and worm wheel 13 on the planetary gear 15 and further on indigenous gears 2 and 3. The shaft 11, which is fixed to the sun gear 22, is retained by the motor 7 or the brake device 8. Limitation IOM the NTA of rotation of the manual drive is carried out, for example, the ball slipping device removable arm 44 (not shown). At the end of the operation manual drive Cup 50 and the lead 41 with a cylindrical spring 51 again occupy its original position, and the item (s) 37, 38 move into frictional engagement. As a result, the shaft 32 is inhibited and thereby holds the epicycle gear 21 of the planetary gear 16 from rotating. Thus, due to the constructive combination of the manual drive device limit the transmitted torque of the drive rotation ensures safe operation in manual mode actuator without requiring additional switching devices and locks, which improves performance.

Thus, thanks to the peculiarity of drive rotation of the claimed invention while minimizing the mass and size parameters of the drive elements rotate allows the transmission of high torque rotary part, which is especially important for driving the rotating launcher with package TPK, which is under the influence of the increasing inertia, weight and tipping load. With this invention allows you to create a drive of rotation, and improved dynamic performance. In addition, when the security mode manual the th actuator the invention does not require additional switching devices and locks, that simplifies the drive rotation and improves performance.

1. Swing drive containing mounted on the support and rotatable parts of the object, engine braking device, reducer and the gear element, and the engine is connected with the input shaft of the gear on the output shaft which enshrines the fundamental gear that is in mesh with the toothed element, characterized in that it additionally contains identical fundamental gear that is in mesh with a gear part, the gearbox comprises a friction mechanism to limit the maximum torque on the input shaft of the gearbox, Sanatornaya worm gear and the first and second differential mechanisms, each of which is made in the form of a planetary gear set having epicycle gear, the sun gear, carrier and satellites, and one indigenous gears fixed on made in one piece with the planet carrier of the first planetary gear shaft, the axis of which is geometrically aligned with the Central axis of the latter, and the other radical gear fixed on the prescribed of the housing shaft, which is fixed to the gear that is in mesh with the gear, made in one piece with epicycle gear of the first planetary gear set, while the sun gear in the second planetary gear set is connected with the motor shaft, epicycle gear last with gear kinematically connected with the said friction mechanism, and a sun gear of the first planetary gear mounted on a shaft which is kinematically connected with the planet carrier of the second planetary gear set through the mentioned senatormenendez a worm gear.

2. The actuator according to claim 1, characterized in that the engine braking device and gearbox are mounted on the supporting part of the object, and a gear element mounted on the rotary part of the object.

3. The actuator according to claim 1, characterized in that the engine braking device and gearbox are mounted on the rotary part of the object, and a gear element on the supporting part of the object.

4. The actuator according to claim 1, characterized in that as the gear level it comprises a gear rim.

5. Swing drive according to claim 1, characterized in that as the gear level it comprises a gear sector.

6. The actuator according to claim 1, characterized in that the friction mechanism, it contains a friction clutch comprising friction elements, one of which is stationary relative to the housing, and the other is installed on the shaft, which is kinematically connected with the mentioned gear with epicycle gear of the second planetary gear set, while the friction clutch is made with the possibility the firm opening its frictional elements when operating in the manual mode of the drive.



 

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4 dwg

FIELD: forest engineering.

SUBSTANCE: supporting-and-rotating apparatus has roller-type rotating support having lower immovable part rigidly fixed on frame of self-propelled chassis and equipped with toothed crown on its inner circumference. Rotating platform is rigidly fixed on upper movable part of support and handler is mounted on said platform. Rotation mechanism for rotating platform with handler in horizontal plane relative to frame of self-propelled chassis is also fixed on movable part of support. Platform rotation mechanism has engine and reducer with drive gear rigidly fixed on output shaft, said drive gear being meshed with toothed crown of immovable part. Device for shifting of cantilever of drive gear shaft is made in the form of U-shaped frame whose sides are extending in horizontal plane, have different lengths and are equipped with openings wherein drive shaft with drive gear is introduced through bearing units. U-shaped frame is joined with its longer side to rotating platform.

EFFECT: elimination of misalignment in drive gear and toothed crown teeth meshing to thereby enhance reliability and prolong service life of apparatus.

3 cl, 4 dwg

Turning drive // 2323153

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in devices designed for providing turns in horizontal or vertical planes. Proposed turning drive contains motor with brake, reduction gear, friction mechanism to limit maximum torque on reduction gear shaft and differential mechanism, all mounted on support and turnable (movable) parts of object. Motor is connected with input shaft of reduction gear on output shaft of which ring main gear is secured, being in meshing with gear rim. Differential mechanism is made in form of planetary train with epicyclic gear, sun gear, carrier and planet pinions. Sun gear is connected with motor shaft, carrier is connected with input shaft of reduction gear, and epicyclic gear is mechanically coupled with said friction mechanism through gearing.

EFFECT: improved dynamic and service characteristics of turning drive.

9 cl, 4 dwg

Turn drive // 2328442

FIELD: mechanics.

SUBSTANCE: invention can be used in devices designed for turning in a horizontal or vertical plane. The turn drive contains a tooth rim meshing with two identical main gears; the said rim is assembled on a turning portion of the object, this turning portion is installed with a support component on the base whereon an electric motor, a brake mechanism and a reducer are arranged. The electric motor via a coupling is connected to an input shaft of the reducer which includes a frictional mechanism to limit a maximum torque at the input shaft of the reducer, self braking worm gear and two differential mechanisms. Each of the differential mechanisms is made as a planetary drive equipped with an epicyclic gear, a sun gear, a carrier and satellites. One of the main gears is secured to the shaft made as one whole with the carrier of the first planetary gear, the axis of which is geometrically coupled with the central axis of the latter. The other main gear is fixed on the shaft installed in the case of the reducer; whereon the gear is attached meshing with the gear made as one whole with the epicyclic gear of the first planetary gear mechanism. The sun gear of the second planetary gear mechanism is connected to the shaft of the motor; epicyclic gear of the planetary gear mechanism by means of tooth meshing is kinematically tied to the above said friction mechanism. The sun gear of the first planetary gear mechanism is secured on the shaft which is kinematically tied with the carrier of the second planetary gear mechanism via the said self braking worm gear.

EFFECT: increased reliability of operation, improvement of dynamic and operational characteristics of a turn drive.

6 cl, 7 dwg

Slewing ring // 2335453

FIELD: transportation.

SUBSTANCE: slewing ring contains fixed and movable rings with running paths contacting with rolling bodies located between them. Cross-section of running paths profile represents square equally inclined to ring base, with radial recesses made on each of its sides, and running paths consist of 8 rectilinear and 4 radial surfaces located along diameter of ring running paths centre. In running paths with rectilinear surfaces rolling bodies of roller-type are installed, and between them/in running paths with radial surfaces - rolling bodies of ball-type, at that, balls diameter exceeds rollers diameter.

EFFECT: increase of load-carrying capability of running paths and lowering of contact loads.

2 cl, 6 dwg

FIELD: mechanics.

SUBSTANCE: support-rotating device (SRD) incorporates rotary-roller support with its lower part rigidly attached to the self-propelled chassis frame and furnished gear ring arranged along its outer edge, and its upper movable part accommodating platform rigidly fixed thereon. The platform supports manipulator and mechanism to turn the said platform with the manipulator horizontally and relative to the self-propelled chassis frame, the latter being furnished with a motor and a reduction gear with its output shaft provided with a drive gear in mesh with the aforesaid gear ring of the support fixed part. A rotary plate is fitted on the reduction gear output shaft, furnished with additional gears driven from the drive gear via a flexible link, e.g. a roller chain and lantern gears, one of them being fitted on the drive gear shaft, the others on the additional gear shafts. The said additional gears are in mesh with the fixed support gear ring.

EFFECT: longer life of SRD and machine proper.

4 cl, 2 dwg

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