CN222735894U - A dual-frequency capacitor-excited unidirectional synchronous generator - Google Patents

Abstract

The utility model relates to a one-way synchronous generator of double-frequency electric capacity excitation has the dual rotation speed function, can stabilize under different rotational speeds and build the pressure, energy saving and emission reduction. The utility model comprises a generator shell, a rotor, a stator and a driving part, wherein the rotor and the stator are arranged in the generator shell, the driving part is used for driving the rotor to rotate, an oil cavity and a first chute are formed in the top of the generator shell, a through groove communicated with the inner cavity of the generator shell is formed in the bottom of the first chute, a channel communicated with the side wall of the first chute is formed in the side wall of the oil cavity, a sliding block is slidably connected in the first chute, a through hole is formed in the top surface of the sliding block along the vertical direction, the through hole is communicated with the through groove, a control mechanism used for controlling sliding of the sliding block is further arranged in the generator shell, and in an initial state, the side wall of the sliding block seals the channel and the channel port of the first chute, so that the self-lubricating effect is achieved.

Description

Double-frequency capacitor excitation unidirectional synchronous generator

Technical Field

The utility model relates to the field of motors, in particular to a double-frequency capacitor excitation unidirectional synchronous generator.

Background

In the event of a natural disaster or emergency, emergency lighting devices need to be used for illumination, and a generator needs to be provided for supplying power to the emergency lighting devices. In order to meet the requirements of multiple powers and voltages of emergency lighting equipment, the emergency lighting equipment is generally provided with a double-frequency capacitor excitation unidirectional synchronous generator.

The dual frequency generator can switch back and forth between the two operating frequencies, so that the rotor wear of the dual frequency generator can be greater than that of a conventional generator, and special attention is required to the lubrication maintenance of the dual frequency generator. However, in the disaster relief process, personnel are required to be put into the disaster relief process, and the timing lubrication and maintenance of the generator cannot be ensured, so that the problem of realizing the self-lubrication of the generator is solved.

Disclosure of utility model

The application provides a double-frequency capacitor excitation unidirectional synchronous generator which has an autonomous lubrication function.

The application provides a double-frequency capacitor excitation unidirectional synchronous generator which adopts the following technical scheme:

The utility model provides a one-way synchronous generator of double-frequency electric capacity excitation, includes generator housing, locates rotor and stator in the generator housing, is used for driving rotor pivoted drive division, oil pocket, first spout have been seted up at generator housing top, logical groove of intercommunication generator housing inner chamber has been seted up to the bottom of first spout, the diameter of logical groove is less than the diameter of first spout, set up the passageway of intercommunication first spout lateral wall on the lateral wall of oil pocket, sliding connection has the slider in the first spout, the through-hole has been seted up along vertical direction to the top surface of slider, through-hole intercommunication groove, still be equipped with the control mechanism that is used for controlling the slider to slide in the generator housing, under the initial state, the lateral wall shutoff passageway of slider and the access port of first spout, when the slider motion to the access port of inconsistent with first spout diapire, the slider is not in shutoff passageway and first spout.

Through adopting above-mentioned technical scheme, when generator work, through control mechanism control slider downward movement for the slider is not blocking the passageway, and in the slider was not blocking the passageway in the oil pocket can flow into first spout through the passageway, and flow into logical inslot through the through-hole, then on leading to the groove to the rotor, can drive lubricating oil and splash when the rotor is rotatory, thereby make lubricating oil can splash the junction of generator spare part, thereby realize lubricated maintenance to the generator.

Preferably, the slider is the iron plate, control mechanism is including locating the magnetic stripe that has the adsorption to the slider on the rotor and locating the spring in the first spout, the slider is located the magnetic stripe and rotates the route directly over, the one end of spring is inconsistent with the roof fixed connection of first spout, the other end and the roof of slider, the magnetic stripe is greater than under the effect of spring to the slider under the effect of slider.

Through adopting above-mentioned technical scheme, the rotatory in-process of rotor can drive the magnetic stripe and rotate after the generator starts, the magnetic stripe is greater and greater to the adsorption affinity that the slider produced when the magnetic stripe motion is close to the slider, can make the slider downstream not be in shielding the passageway gradually, in the oil pocket lubricating oil can flow into first spout through the passageway when the slider is not in blocking the passageway, and flow into logical inslot through the through-hole, then on leading to the groove to the rotor, can drive lubricating oil and splash when the rotor is rotatory, thereby make lubricating oil can splash to the junction of generator spare part, thereby realize lubrication maintenance to the generator. Meanwhile, the sliding block drives the spring to be stressed and stretched when moving. When the magnetic stripe moves away from the sliding block, the adsorption force of the magnetic stripe to the sliding block is smaller and smaller gradually, and the spring rebounds and drives the sliding block to move upwards to reset, so that the sliding block blocks the channel again.

Preferably, a threaded hole communicated with the first sliding groove is formed in the top surface of the generator shell along the vertical direction, a bolt is connected in the threaded hole, the diameter of the bolt is larger than that of the through hole, the spring is sleeved outside the thread, and when the bolt abuts against the sliding block on the bottom wall of the first sliding groove, the bolt completely shields the through hole.

Through adopting above-mentioned technical scheme, under the generator not in service condition, the position of magnetic stripe has uncertainty, if the magnetic stripe stop in the position that is close to the slider can make the slider be located the bottom of first spout so that the slider can't block the passageway, can make lubricated have and flow into in the generator casing all the time. Therefore, after the generator stops working, the bolts are rotated, so that the bolts move downwards and press the sliding blocks on the bottom wall of the first sliding groove and shield the through groove, lubricating oil can not leak into the inner cavity of the generator shell, and the waste of the lubricating oil is prevented. Before the generator is started, the bolts are not pressed against the sliding blocks by rotating the bolts, and the sliding blocks can move upwards to reset and block the channel openings of the channel and the first sliding groove under the action of the springs.

Preferably, the rotor surface is offered along the axis direction of pivot and is held the groove, the holding groove is used for holding the magnetic stripe, still be equipped with in the holding groove and be used for carrying out radial fixed spacing portion to the magnetic stripe.

Through adopting above-mentioned technical scheme, when making things convenient for the magnetic stripe installation, throw away the holding tank with the magnetic stripe when the prevention rotor is rotatory.

Preferably, the limiting part is a limiting strip arranged on the side wall of the accommodating groove and a limiting groove which is arranged on the side wall of the magnetic stripe and is matched with the limiting strip in a clamping manner.

Through adopting above-mentioned technical scheme, the cooperation of spacing and spacing groove can help the magnetic stripe to overcome the centrifugal force that produces when its rotation to prevent that the magnetic stripe from flying out the holding tank when the rotor is rotatory.

Preferably, a plurality of mounting holes are formed in one side end face of the rotor, a plurality of mounting holes are circumferentially distributed on the rotor, damping strips are arranged in the mounting holes, fixing plates are arranged on two end faces of the rotor, and two ends of the damping strips respectively support against the two fixing plates.

Through adopting above-mentioned technical scheme, increase the damping of generator through setting up the damping strip, can effectively restrain the vibration, improve stability. And the damping strips are prevented from falling out of the mounting holes in the rotating process of the rotor by arranging two fixing plates.

Preferably, the end faces of the two ends of the magnetic strip are flush with the end faces of the two ends of the rotor, and the end parts of the two ends of the magnetic strip are respectively abutted with the two fixing plates.

By adopting the technical scheme, the two mounting plates limit the magnetic stripe, so that the connection reliability between the magnetic stripe and the rotor is further improved.

Preferably, the top surface of the generator shell is provided with an oil filling groove communicated with the oil cavity, the top surface of the generator shell is also hinged with a plugging cover for plugging the notch of the oil filling groove, the plugging cover is matched with the oil filling groove in a clamping way, and the top of the plugging cover is fixedly connected with a pull block.

Through adopting above-mentioned technical scheme, when not needing to add lubricating oil, the shutoff lid is the notch of joint at the oil filler neck, avoids impurity to fall into the oil pocket. When oiling is needed, an operator firstly pulls the pull block to drive the plugging cover to move, so that the plugging cover plugs the oiling groove.

Preferably, the top surface of the generator shell is further provided with a clamping groove matched with the pull block in a clamping manner, the clamping groove is located on the rotating path of the pull block, the top surface of the generator shell is further provided with a limiting block, the limiting block is located on one side, away from the oil filling groove, of the clamping groove, the limiting block is located on the rotating path of the plugging cover, and when the plugging cover moves to be in butt joint with the limiting block, the pull block is located in the clamping groove.

Through adopting above-mentioned technical scheme, make the shutoff lid no longer shutoff oil filler tank through pulling the piece that draws after, make through pressing the shutoff lid draw the piece card into the draw-in groove, the shutoff lid supports and leans on the stopper. The cooperation of pulling piece and draw-in groove can play spacing effect to the shutoff lid, and shutoff lid atress upset shutoff oil filler neck again when preventing the filling lubricating oil. When the limiting block is arranged to enable the pull block to be matched with the clamping groove, a certain distance is reserved between the plugging cover and the generator shell, and fingers can extend into the plugging cover. After the lubricating oil filling is completed, an operator stretches fingers between the plugging cover and the generator shell and then dials the plugging cover to enable the pull block to move away from the clamping groove, and the plugging cover is clamped in the oil filling groove again.

The technical effects of the utility model are mainly as follows:

1. according to the utility model, the movement of the sliding block is controlled through the cooperation of the magnetic stripe and the spring, so that the self-lubrication maintenance of the generator is realized;

2. According to the utility model, the bolts are arranged to prevent lubricating oil from leaking into the inner cavity of the generator shell when the generator does not work;

3. According to the utility model, the fixed plates are arranged to limit the damping strips and the magnetic strips.

Drawings

Fig. 1 is a schematic view of the structure of the generator of the present application when the rack rotates to the highest point in the starting state.

Fig. 2 is a cross-sectional view of the generator of fig. 1 taken along line A-A.

Fig. 3 is a partial enlarged view at B in fig. 2.

Fig. 4 is a schematic structural view of the rotor and a fixing plate in fig. 1.

Fig. 5 is a schematic view of the structure of the magnetic stripe in fig. 1.

The motor comprises the following components of a motor shell, 11, an oil cavity, 12, a first sliding groove, 13, a through groove, 14, a channel, 15, a threaded hole, 16, an oil filling groove, 17, a clamping groove, 18, a limiting block, 2, a rotor, 21, a containing groove, 22, a mounting hole, 23, a damping strip, 3, a stator, 4, a sliding block, 41, a through hole, 5, a control mechanism, 51, a magnetic strip, 52, a spring, 6, a bolt, 7, a limiting part, 71, a limiting strip, 72, a limiting groove, 8, a fixing plate, 9, a sealing cover, 91 and a pulling block.

Detailed Description

The present application will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present application can be more easily understood and grasped.

Referring to fig. 1-3, a dual-frequency capacitor excitation unidirectional synchronous generator of the present embodiment includes a generator housing 1 and a driving portion, wherein a plurality of stators 3 are fixedly connected to an inner wall of the generator housing 1, and a rotor 2 is also rotatably connected to the generator housing 1. The driving part is a diesel engine (not shown in the figure) fixedly connected with the rotating shaft of the rotor 2 and used for driving the rotor 2 to rotate. A plurality of mounting holes 22 penetrating through the rotor 2 are formed in the end face of one side of the rotor 2 along the axial direction of the rotor 2, the plurality of mounting holes 22 are circumferentially distributed on the rotor 2, damping strips 23 are inserted into the plurality of mounting holes 22, fixing plates 8 are fixedly connected to the two end faces of the rotor 2 through bolts 6 respectively, and two ends of the plurality of damping strips 23 respectively lean against the two fixing plates 8.

Referring to fig. 1-3, an oil cavity 11 is further formed in the top of the generator housing 1, and an oil filling groove 16 communicating with the oil cavity 11 is formed in the top surface of the generator housing 1. The top of the generator shell 1 is hinged with a plugging cover 9 for plugging the notch of the oil filling groove 16, the plugging cover 9 is matched with the oil filling groove 16 in a clamping way, and the top of the plugging cover 9 is fixedly connected with a pull block 91. The top surface of the motor shell 1 is also provided with a clamping groove 17 which is matched with the pull block 91 in a clamping way, the clamping groove 17 is positioned on the rotating path of the pull block 91, the top surface of the generator shell 1 is also provided with a limiting block 18, the limiting block 18 is positioned on one side of the clamping groove 17 away from the oil filling groove 16, the limiting block 18 is positioned on the rotating path of the plugging cover 9, and when the plugging cover 9 moves to be abutted with the limiting block 18, the pull block 91 is positioned in the clamping groove 17.

Referring to fig. 1-3, when no lubricant is required to be added, the blocking cover 9 is clamped at the notch of the oil filling groove 16, so that impurities are prevented from falling into the oil cavity 11. When the oil is required to be added, an operator firstly pulls the pull block 91 to drive the plugging cover 9 to move, so that the plugging cover 9 plugs the oil adding groove 16. After the plugging cover 9 is turned over, the plugging cover 9 is pressed to enable the pull block 91 to be clamped into the clamping groove 17, and the plugging cover 9 abuts against the limiting block 18. After the lubricating oil is filled, an operator stretches fingers between the plugging cover 9 and the generator shell 1 and then dials the plugging cover 9 so that the pull block 91 moves away from the clamping groove 17, and the plugging cover 9 is clamped in the oil filling groove 16 again.

Referring to fig. 1-3, a first chute 12 is further formed in the top of the generator housing 1 along the vertical direction, a channel 14 communicated with the first chute 12 is formed in the bottom wall of the oil cavity 11, the channel 14 and a channel 14 opening of the first chute 12 are located on the side wall of the first chute 12, a through groove 13 communicated with the inner cavity of the generator housing 1 is formed in the bottom surface of the first chute 12 along the vertical direction, and the diameter of the through groove 13 is smaller than that of the first chute 12. A sliding block 4 made of iron is also slidably connected in the first sliding groove 12 along the vertical direction, a through hole 41 is formed in the top surface of the sliding block 4 along the vertical direction, and the through hole 41 is communicated with the communication groove 13.

Referring to fig. 1 to 5, an accommodating groove 21 is formed in the outer wall of the rotor 2 in the axial direction of the rotor 2. The generator shell 1 is also internally provided with a control mechanism 5 for controlling the sliding of the sliding block 4, and when the sliding block 4 moves to be in contact with the bottom wall of the first sliding groove 12, the sliding block 4 is not used for blocking the communication port between the channel 14 and the first sliding groove 12. The control mechanism 5 comprises a magnetic stripe 51 which is arranged in the accommodating groove 21 and has an adsorption effect on the sliding block 4, the sliding block 4 is positioned right above the rotating path of the magnetic stripe 51, the end faces of the two ends of the magnetic stripe 51 are flush with the end faces of the two ends of the rotor 2, and the end parts of the two ends of the magnetic stripe 51 are respectively abutted against the two fixing plates 8. The holding groove 21 is also provided with a stopper 7 for radially fixing the magnetic strip 51. The limiting part 7 is a limiting strip 71 fixed on the side wall of the accommodating groove 21 and a limiting groove 72 which is arranged on the side wall of the magnetic stripe 51 and is matched with the limiting strip 71 in a clamping way.

Referring to fig. 1-3, the control mechanism 5 further includes a spring 52 installed in the first chute 12, one end of the spring 52 is fixedly connected with the top wall of the first chute 12, the other end of the spring is in contact with the top wall of the slider 4, and the magnetic stripe 51 acts on the slider 4 more than the spring 52 acts on the slider 4. A threaded hole 15 which is communicated with the first chute 12 is formed in the top surface of the generator shell 1 along the vertical direction, a bolt 6 is connected in the threaded hole 15, the diameter of the bolt 6 is larger than that of the through hole 41, the axis of the bolt 6 is coincident with that of the through hole 41, and a spring 52 is sleeved outside the threads. When the bolt 6 presses the slider 4 against the bottom wall of the first chute 12, the bolt 6 completely shields the through hole 41.

Referring to fig. 1-3, the position of the magnetic strip 51 is not determined when the generator is not in use, and if the magnetic strip 51 is stopped close to the slider 4, the slider 4 is located at the bottom of the first runner 12, so that the slider 4 cannot block the channel 14, and lubrication can flow into the generator housing 1 all the way. Therefore, after the generator stops working, the bolt 6 is rotated, so that the bolt 6 moves downwards and presses the sliding block 4 against the bottom wall of the first sliding groove 12 and shields the through groove, lubricating oil can not leak into the inner cavity of the generator shell 1, and the waste of the lubricating oil is prevented.

Referring to fig. 1-5, when the generator is to be used, the bolt 6 is first rotated so that the bolt 6 is not pressing the slider 4, and the slider 4 moves upward under the action of the spring 52 to reset and close the channel 14 and the channel 14 opening of the first chute 12. The rotor 2 can drive the magnetic stripe 51 to rotate in the rotatory in-process of generator start back, the adsorption force that magnetic stripe 51 produced to slider 4 when magnetic stripe 51 moves and is close to slider 4 is bigger and bigger, can make slider 4 downstream make slider 4 not shelter from passageway 14 gradually, the lubricating oil in the oil pocket 11 can flow into first spout 12 through passageway 14 when slider 4 is not in the passageway 14, and flow into logical inslot 13 through hole 41, then on logical inslot 13 arrives rotor 2, can drive lubricating oil splash when rotor 2 rotates, thereby make lubricating oil can splash to the junction of generator spare part, thereby realize lubricated maintenance to the generator. And meanwhile, the sliding block 4 drives the spring 52 to be stressed and stretched when moving.

When the magnetic strip 51 moves away from the sliding block 4, the adsorption force of the magnetic strip 51 to the sliding block 4 is smaller and smaller gradually, and the spring 52 rebounds and drives the sliding block 4 to move upwards for resetting, so that the sliding block 4 blocks the channel 14 again. The faster the rotor 2 of the generator moves, the more obvious the effect of the magnetic strip 51 on the sliding block 4 is, so that the inflow amount of lubricating oil flowing into the inner cavity of the motor casing is increased, and the adding amount of the lubricating oil can be regulated to a certain extent according to the rotating speed of the generator through the matching of the magnetic strip 51 and the spring 52.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims (9)

1. The double-frequency capacitor excitation unidirectional synchronous generator comprises a generator shell (1), a rotor (2) and a stator (3) which are arranged in the generator shell (1), and a driving part for driving the rotor (2) to rotate, and is characterized in that an oil cavity (11) and a first chute (12) are formed in the top of the generator shell (1), a through groove (13) communicated with the inner cavity of the generator shell (1) is formed in the bottom of the first chute (12), the diameter of the through groove (13) is smaller than that of the first chute (12), a channel (14) communicated with the side wall of the first chute (12) is formed in the side wall of the oil cavity (11), a sliding block (4) is connected in the first chute (12) in a sliding manner, a through hole (41) is formed in the top surface of the sliding block (4) along the vertical direction, a control mechanism (5) for controlling the sliding of the sliding block (4) is further arranged in the generator shell (1), in an initial state, the side wall channel (14) of the sliding block (4) is in a state and the side wall channel (14) of the sliding block (4) is in contact with the first chute (12) when the side wall (14) is in a blocking state, the sliding block (4) is not arranged at the opening of the channel (14) of the first sliding groove (12) and the channel (14).

2. The double-frequency capacitor excitation unidirectional synchronous generator of claim 1, wherein the sliding block (4) is an iron block, the control mechanism (5) comprises a magnetic strip (51) which is arranged on the rotor (2) and has an adsorption effect on the sliding block (4) and a spring (52) which is arranged in the first sliding groove (12), the sliding block (4) is positioned right above a rotating path of the magnetic strip (51), one end of the spring (52) is fixedly connected with the top wall of the first sliding groove (12), the other end of the spring is in contact with the top wall of the sliding block (4), and the action of the magnetic strip (51) on the sliding block (4) is larger than the action of the spring (52) on the sliding block (4).

3. The double-frequency capacitor excitation unidirectional synchronous generator of claim 2, wherein a threaded hole (15) communicated with the first sliding groove (12) is formed in the top surface of the generator shell (1) in the vertical direction, a bolt (6) is connected in the threaded hole (15), the diameter of the bolt (6) is larger than that of the through hole (41), the spring (52) is sleeved outside the thread, and when the bolt (6) pushes the sliding block (4) against the bottom wall of the first sliding groove (12), the bolt (6) completely shields the through hole (41).

4. The double-frequency capacitor excitation unidirectional synchronous generator of claim 2 is characterized in that an accommodating groove (21) is formed in the surface of the rotor (2) along the axial direction of the rotating shaft, the accommodating groove (21) is used for accommodating a magnetic strip (51), and a limiting part (7) used for radially fixing the magnetic strip (51) is further arranged in the accommodating groove (21).

5. The double-frequency capacitor excitation unidirectional synchronous generator of claim 4, wherein the limiting part (7) is a limiting strip (71) arranged on the side wall of the accommodating groove (21) and a limiting groove (72) which is arranged on the side wall of the magnetic strip (51) and is in clamping fit with the limiting strip (71).

6. The double-frequency capacitor excitation unidirectional synchronous generator of claim 2 is characterized in that a plurality of mounting holes (22) are formed in one side end face of the rotor (2), the mounting holes (22) are circumferentially distributed on the rotor (2), damping strips (23) are arranged in the mounting holes (22), fixing plates (8) are arranged on two end faces of the rotor (2), and two ends of the damping strips (23) are respectively abutted against the two fixing plates (8).

7. The double-frequency capacitor excitation unidirectional synchronous generator of claim 6, wherein two end faces of the magnetic strip (51) are flush with two end faces of the rotor (2), and two end faces of the magnetic strip (51) are respectively abutted with two fixing plates (8).

8. The double-frequency capacitor excitation unidirectional synchronous generator of claim 1 is characterized in that an oil filling groove (16) communicated with an oil cavity (11) is formed in the top surface of the generator shell (1), a plugging cover (9) for plugging the notch of the oil filling groove (16) is further hinged to the top surface of the generator shell (1), the plugging cover (9) is matched with the oil filling groove (16) in a clamping mode, and a pull block (91) is fixedly connected to the top of the plugging cover (9).

9. The double-frequency capacitor excitation unidirectional synchronous generator of claim 8, wherein the top surface of the generator shell (1) is further provided with a clamping groove (17) which is matched with the pull block (91) in a clamping way, the clamping groove (17) is located on a rotating path of the pull block (91), the top surface of the generator shell (1) is further provided with a limiting block (18), the limiting block (18) is located on one side, far away from the oiling groove (16), of the clamping groove (17), the limiting block (18) is located on the rotating path of the plugging cover (9), and when the plugging cover (9) moves to be abutted with the limiting block (18), the pull block (91) is located in the clamping groove (17).