RU2410251C1 - Generator drive in system of electric power supply for mobile complex of topographic referencing - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: generator drive of system of electric power supply of mobile complex of topographic referencing is arranged on carriage of special vehicle. The drive of the generator consists of a Cardan shaft with its one side connected to a crankshaft of an engine of the vehicle, while with its other side connected with shaft (4) by means of a spline connection; the shaft is installed in bearings (5) of support bracket (6). Further, the drive consists of a belt gear equipped with two belts and two-fluted pulleys (8 and 9) and of the generator. Two-fluted pulley (8) is mounted on the other side of shaft (4) on bearing (11); the pulley is rigidly coupled with diaphragm (12) of an electro-magnetic clutch of a contactless type. Case (13) of the clutch is arranged on shaft (4) before pulley (8) by means of key connection (14). Coil holder (15) of the electromagnetic clutch encasing a coil with an anchor is fixed on support bracket (6) and is connected with the case of clutch (13) by means of bearing (16). Coil holder (15) and case (13) are divided with a ballast gap. The generator and support bracket (6) are arranged on a platform mounted of a frame of the special vehicle and are covered with a protective jacket. The cases of support bracket (6) and generator (10) are interconnected with a controlled rod.

EFFECT: increased reliability of generator drive.

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Description

The invention relates to automotive vehicles for military and special purposes, namely the installation of additional energy power sources (electricity, compressed air), and can be used in ground-based mobile weapon systems, in particular in mobile topographic reference complexes.

The known drive of the compressor of the vehicle (patent RU No. 2009050 C1, IPC BK 25/04, publ. March 15, 1994). The drive contains a drive shaft with a pulley mounted on it, through a belt drive connected to a compressor, a drive motor electrically connected to a power source, turn-off couplings configured to connect the compressor to the drive shaft and the engine. The drive shaft is made with splines at the end, turn-off couplings include bearings mounted on the splines, the inner race of one of the bearings being rigidly fixed to the shaft, and the other made with splines and freely mounted on the shaft. A pulley with blades is rigidly fixed on the outer surface of a rigidly mounted bearing, ribs are made on the inner race of a freely mounted bearing, and the first ends of rods are fixed on the outer race, the second ends of which are connected to the cores of electromagnetic relays.

The disadvantages of the drive are:

- high drive complexity;

- high probability of failure;

- high cost of manufacture and installation of the drive.

Known drive rotation of the generator (Topaz UAZ-452T. Technical description and operating instructions BI2 511 003 TO, p. 22, 23, p. 149-153), adopted as a prototype. The generator drive rotates from the crankshaft of the car engine through the driveshaft and belt drive. The belt drive of the generator rotation drive is a bracket on which three pulleys with a belt and a generator are installed. The bracket is mounted on the car frame and fastened to it with bolts. The driveshaft is connected to the engine crankshaft by means of a fork with a flange, which, together with the pulley, is fastened with three bolts to the crankshaft flange. The plug is detachable, fastened with four bolts. On the shaft of the belt transmission bracket, the cardan shaft is fixed using conical pins with a threaded end. The upper part of the bracket through the cutout in the body passes into the driver's cab. From the side of the commander’s place in the cockpit, the generator is fixed to the upper part of the bracket with bolts and screws with nuts. The generator is closed by a casing with a removable cover, which allows inspection of the generator brushes and the connection of the cable wires to the generator terminals. The belt tension is adjusted by turning the bracket with the tension pulley around the bolt. This drive has found wide application in automotive vehicles for special and military purposes, in particular in the UAZ-452T top loader. However, it has several significant drawbacks:

- the complexity of maintenance and operation;

- the inconvenience of adjusting the belt tension;

- insufficiently high operating life of the generator, due to the constant rotation of its shaft with the car engine turned on;

- the lack of the ability to enable / disable rotation of the generator shaft, as necessary, using on-board equipment of the topographic bin.

The proposed invention solves the problem of increasing the combat effectiveness of ground-based mobile weapon systems.

The technical result obtained by the implementation of the invention is to create a reliable and easy-to-use drive of the generator of the power supply system of the mobile topographic reference complex based on the chassis of a special vehicle by optimizing the kinematic, adjusting and layout schemes for using the coupling.

The specified technical result is achieved by the fact that in the proposed drive of the generator of the power supply system of the mobile topographic reference complex containing the driveshaft and the belt drive, which are connected with the crankshaft of the car engine, a support bracket with pulleys and a shaft in the bearing supports, a generator, a protective casing, a tension control mechanism belt, new is that the belt drive is equipped with two belts and two-groove pulleys, the cardan shaft and one side of the shaft of the support bracket are connected through spline connection, on the other side of the shaft of the support bracket on the bearing there is a two-groove pulley rigidly connected to the diaphragm of a non-contact electromagnetic coupling, the housing of which is placed by a key connection on the same shaft in front of the pulley, the coil holder of the electromagnetic coupling, in which the coil with the armature is located, is stationary fixed on the support bracket and connected to the coupling housing by means of a bearing, the generator, bracket and protective cover are placed on a platform mounted on the frame of the car, outside its cab, the housing of the support bracket and the generator are interconnected by adjustable traction.

Equipping a belt drive with two belts and two-groove pulleys allows you to:

- firstly, to increase the operational resource of the belt drive by increasing traction with pulleys and, accordingly, increasing traction ability;

- secondly, to transfer the necessary power without overload.

The connection of the driveshaft and one side of the shaft of the support bracket through a spline connection allows you to:

- firstly, to increase the load capacity of the connection due to the larger working surface of the contact;

- secondly, to improve the centering of the propeller shaft and the shaft of the support bracket;

- thirdly, to increase the fatigue strength of the metal during operation of the drive;

- fourthly, on the basis of the above factors, to increase the overall reliability of the drive.

Installing on the other side of the shaft of the support bracket on the bearing of a two-groove pulley rigidly connected to the diaphragm of a non-contact electromagnetic coupling, the housing of which is placed with a key connection on the same shaft in front of the pulley, fixing the coil of the electromagnetic coupling on the bracket and connecting it to the coupling housing by means of a bearing :

- firstly, to rotate (enable / disable) the generator as necessary in the generation of electricity;

- secondly, enable / disable the generator with a short response time of the electromagnetic clutch;

- thirdly, to control the clutch without the use of additional gears (levers, forks, etc.);

- fourthly, to increase the efficiency of energy supply of the mobile topographic location complex;

- fifthly, due to the dry running of the coupling, the use of protective coatings on the outer surfaces of the coupling to reduce the frequency of technical inspections and maintenance;

- sixth, based on the above factors, to increase the overall reliability of the drive.

Placing the generator, bracket and protective casing on the platform mounted on the car frame, outside its cab, allows not to occupy the useful volume of the car body interior space saturated with equipment.

The implementation of the connection of the housing of the support bracket and the generator with each other by means of an adjustable rod allows you to adjust the tension of the belts by changing the length of the belt due to the rotation of the generator, in the lower part having an axis of rotation.

Technical solutions with features distinguishing the claimed solution from the prototype are not known and do not follow explicitly from the prior art. This suggests that the claimed solution is new and has an inventive step.

The invention is illustrated by drawings, where figure 1 shows a diagram of the installation of the drive of the generator on the chassis, figure 2 - remote element A, view of the drive of the generator from above, figure 3 - section BB, section of the support bracket.

The generator drive of the power supply system of the mobile topographic reference complex is located on the chassis of a special vehicle 1 - an all-terrain vehicle URAL-43206-1730 and contains a driveshaft 2, connected on one side to the crankshaft of the vehicle’s engine 1, and the other side through a splined connection 3 with the shaft 4, mounted in bearings 5 of the support bracket 6, a belt drive equipped with two belts 7 and two-groove pulleys 8 and 9, the generator 10. On the other side of the shaft 4 of the support bracket and 6, a bearing 11 is mounted dvuhkanavochny pulley 8 rigidly connected to the diaphragm 12 of the electromagnetic clutch contactless execution. The clutch housing 13 is placed by means of a key coupling 14 on the shaft 4 in front of the pulley 8. The coil holder 15 of the electromagnetic coupling, in which the coil with the armature is located, is fixedly mounted on the support bracket 6 and connected to the clutch housing 13 by means of the bearing 16. The coil holder 15 and the housing 13 are separated ballast clearance. The generator 10, the support bracket 6 are placed on the platform 17, mounted on the frame of a special vehicle 1, outside its body, and are closed by a protective casing 18. The cases of the support bracket 6 and the generator 10 are interconnected by an adjustable rod 19.

The drive of the generator of the power supply system of the mobile topographic location complex works as follows. A generator 10 driven by the engine of a special vehicle 1 is the main source of electrical energy for the equipment of the mobile topographic location complex. After the engine is started, when the crankshaft rotates, the driveshaft 2 is rotated, which, by means of a spline connection 3, transmits rotation to the shaft 4 located in the bearings 5 of the support bracket 6. The further transmission of torque to the generator 10 depends on the need for electric energy. Depending on the need for electrical energy, the electromagnetic clutch is on or off. When the electromagnetic clutch is disconnected, the shaft 4 and the inner race of the bearing 11 rotate, the housing 13 mounted by keyway 14 on the shaft 4, and the inner race of the bearing 16. The pulley 7 does not rotate in this case, respectively, the generator 10 is stationary. When the coil is turned on, the working magnetic flux closes along the contour, the armature of the coil holder 15 is attracted to the housing 13. The torque is transmitted along the chain: housing 13 - the armature of the coil holder 15 - aperture 12 - pulley 8. Using a belt drive 7, the pulley 9 and the generator shaft 10 begin to rotate . When the clutch is disconnected, the spring diaphragm quickly disengages the housing 13 and the armature of the reel seat 15. The tension of the belts 7 is adjusted by changing the length of the adjustable rod 19, which changes the angular position of the generator 10.

Thus, the proposed drive of the generator of the power supply system of the mobile topographic reference complex solved the problem of achieving a technical result consisting in the creation of a reliable and easy-to-operate drive of the generator of the power supply system of the mobile topographic reference complex based on the chassis of a special vehicle by optimizing the kinematic, adjustment and layout schemes, coupler applications.

Claims (1)

The generator drive of the power supply system of the mobile topographic reference complex, comprising a cardan shaft and a belt drive that are connected to the crankshaft of the car engine, a support bracket with pulleys and a shaft in the bearing bearings, a generator, a protective casing, a belt tension adjustment mechanism, characterized in that the belt drive is equipped two belts and two-groove pulleys, the cardan shaft and one side of the shaft of the support bracket are connected through a spline connection, on the other side of the shaft of the support bracket on the base A two-groove pulley is mounted on the ipnik, which is rigidly connected to the diaphragm of a non-contact electromagnetic coupling, the housing of which is placed by means of a key connection on the same shaft in front of the pulley, the coil holder of the electromagnetic coupling, in which the coil with the armature is fixedly fixed to the support bracket and connected to the coupling housing by the bearing, the generator, the bracket and the protective cover are placed on a platform mounted on the car frame, outside its cab, the housing of the support bracket and the generator and interconnected adjustable thrust.

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