Hybrid power gapless cutting driving system

Abstract

The invention relates to a hybrid power gapless cutting driving system which comprises a transmission controller, a permanent magnet driver and a control circuit, the transmission controller is composed of a shell, a transmission shaft, a front end driving ring, a floating contact mechanism, a conductive sleeve, an electric brush ring and the like, and the transmission shaft is connected with an internal combustion engine and the front end driving ring; the floating contact mechanism is in contact with the front-end driving ring through a floating push rod and a balancing weight, the permanent magnet driver comprises a permanent magnet rotor motor, a driving circuit, an output shaft and a reduction gear box and is connected with the cutting head, and the control circuit is composed of a relay, a capacitor and a charging and discharging loop and controls charging and discharging of the permanent magnet motor. A front-end conducting ring is arranged on the inner wall of the shell of the transmission controller, the floating push rod is connected with the conducting sleeve in a conducting mode, the electric brush ring is conducted with the wire inlet end of the transmission controller, the front-end conducting ring is conducted with the wire outlet end, hybrid power driving of the internal combustion engine and the motor is achieved, and the cutting efficiency and the system performance are improved.

Description

Technical Field

[0001] The invention relates to a hybrid power gapless cutting drive system, belonging to the field of engineering machinery drive and transmission systems. Background Art

[0002] The current cutting drive system of the roadheader is driven by either an electric motor or an internal combustion engine.

[0003] When excavating caves or working in some suburban areas, the first pure electric drive cannot be easily and quickly connected to the power grid and other structures, so it usually uses a long connecting wire to connect to a large diesel generator or a storage power station for driving. Therefore, the versatility of pure electric drive cutting equipment is low, and no matter what power supply method is used, it will rely on the laying of cables; the second internal combustion engine drive often uses a diesel engine as a power source, and the speed stability of the diesel engine is relatively low. Moreover, when used in a cave, the speed will be unstable due to the unstable supply. When the speed is low, it is very easy for the cutting head to get stuck in the rock formation due to insufficient rotational torque and speed. When the speed changes, the torque curve of the internal combustion engine is not as smooth as that of the motor, which will reduce the torque control accuracy of the cutting head.

[0004] In addition, there is also a driving form in the prior art that uses a tunnel boring machine to drive a generator in real time, and then the generator is connected to the motor after being buffered by a capacitor. However, in this driving form, the capacitor is in a real-time charging and discharging state, which will shorten the life of the capacitor, and the maintenance cost of high-energy-density capacitors is also high. In addition, this form of generator is in a long-term working state, and there will be a fixed energy loss from the internal combustion engine driving the generator, and then to the generator driving the motor. Relatively speaking, the energy utilization rate is also low, and the internal combustion engine in the cave cannot be at the most reasonable power generation speed, which will further reduce the energy utilization efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the technical problems in the prior art and provide a hybrid power gapless cutting drive system.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A hybrid power gapless cutting drive system; comprising:

[0008] A transmission controller, the transmission controller comprises a transmission controller housing, a transmission shaft is rotatably connected in the middle of the transmission controller housing, one end of the transmission shaft is connected to the rotating output end of the internal combustion engine, a front end driving ring is coaxially fixedly connected in the middle of the transmission shaft, and the front end driving ring is made of insulating material; a plurality of floating contact mechanisms are arranged in an annular array on the wall surface of the front end driving ring; the floating contact mechanism comprises a floating component arranged in an annular array in the front end driving ring, the floating component comprises a floating push rod, the floating push rod is slidably connected with the front end driving ring, and a counterweight block is arranged at the end of the floating push rod; the floating contact mechanism also comprises a conductive contact piece arranged in an annular array on the outer side wall of the front end driving ring, and the conductive contact piece is located above the floating push rod; a conductive sleeve is coaxially fixed at the tail end of the transmission shaft, and the conductive sleeve is fixed to the transmission shaft through an insulating sleeve sleeved on the wall surface of the transmission shaft, and a brush ring is fixed in the transmission controller housing, and the brush ring is in sliding contact with the conductive sleeve;

[0009] A permanent magnet drive, the permanent magnet drive comprises a permanent magnet rotor motor, the permanent magnet rotor motor is connected to a permanent magnet motor drive circuit, a rotor of the permanent magnet rotor motor is fixed on an output shaft, one end of the output shaft is coaxially fixedly connected to a transmission shaft, the other end of the output shaft is connected to a reduction gear box, and the output end of the reduction gear box is connected to a cutting head;

[0010] And, a control circuit, the control circuit includes a relay, a capacitor, a permanent magnet motor charging circuit and a permanent magnet motor discharging circuit, the permanent magnet motor charging circuit and the permanent magnet motor discharging circuit are connected in parallel to the connection end of the permanent magnet motor drive circuit, the normally open contact of the relay is connected to the permanent magnet motor charging circuit, the permanent magnet motor charging circuit is connected to the input end of the capacitor through the energy storage rectifier circuit, the normally closed contact of the relay is connected to the permanent magnet motor discharging circuit, and the permanent magnet motor discharging circuit is connected to the output end of the capacitor; the control end of the relay is connected to the low-voltage rectifier circuit through the relay control circuit, the input end of the low-voltage rectifier circuit is connected to the output end of the capacitor, and the transmission controller is connected to the relay control circuit;

[0011] Among them, a front end conductive ring is arranged on the inner wall of the transmission controller housing, the front end conductive ring is fixed in an insulating inner sleeve, the insulating inner sleeve is embedded in the inner wall of the transmission controller housing, and the end of the conductive contact piece is pressed against the inner wall surface of the front end conductive ring by elastic force;

[0012] The floating push rod is synchronously connected with a return spring, and the return spring pushes the floating push rod to move toward the center of the front driving ring;

[0013] Wherein, the rear end of the floating push rod is conductively connected to the conductive sleeve through a conductive connector;

[0014] The brush ring is connected to the input terminal of the transmission controller, and the front conductive ring is connected to the output terminal of the transmission controller;

[0015] Compared with the existing technology, this solution is driven by local energy storage and internal combustion integrated equipment, with no delay in power switching. It can well compensate for the unstable operation of the internal combustion engine under low oxygen conditions, and can also compensate for the poor torque performance of the internal combustion engine at low speeds through electric drive.

[0016] As a further improvement of the present invention, the floating contact mechanism also includes a floating groove arranged in the front end driving ring, a floating component is floatingly connected in the floating groove, the floating component includes a floating valve block, the floating valve block is made of conductive material, a floating push rod is vertically fixedly connected to the middle of the floating valve block, the floating push rod passes through the outer edge wall of the front section driving ring and is slidably connected to the outer edge wall, a return spring is arranged between the end of the floating valve block and the inner side of the wall of the front end driving ring, and a counterweight block is embedded in the floating valve block;

[0017] The floating groove structure improves the floating stability of the floating putter. The floating groove allows the floating putter to be equipped with a larger counterweight block to improve the sensitivity of speed perception.

[0018] As a further improvement of the present invention, the end fixing bolt of the floating push rod is fixed to the floating valve block, a flexible wire is fixed to the end fixing bolt, a wiring ring with an integrated structure with the conductive sleeve is fixed to the side of the front end driving ring, the wiring ring is fixed to the side fixing bolt on the side of the front end driving ring through a plurality of annular arrays, a plug hole is provided in the middle of the side fixing bolt, and the other end of the flexible wire is sealed and inserted into the side fixing bolt through the plug hole;

[0019] The integrated conductive contact of each floating push rod is achieved through the wiring ring, which has higher stability, reduces the use of conductive wires, and reduces the complexity of the internal mechanism.

[0020] As a further improvement of the present invention, a sealing sheet is provided at the opening of the floating groove of the outer edge surface of the front end driving ring, and a floating push rod is slidably connected to the middle part of the sealing sheet through a guide sleeve;

[0021] The sealing piece can be easily inspected and replaced by the floating groove, and the speed changer can be easily replaced.

[0022] As a further improvement of the present invention, the floating push rod comprises a plurality of groups of sub-push rods arranged in an array along the rotation axis of the front end drive ring;

[0023] The split push rod can not only improve the overall floating stability, but also improve the contact point and improve the conductive efficiency.

[0024] As a further improvement of the present invention, damping oil is filled in the floating groove, weight particles are filled between the floating valve block and the bottom of the floating groove, and a plurality of damping holes for the damping oil to pass through are arranged on the floating slider;

[0025] The counterweight particles can assist the counterweight block in improving the sensitivity of the centrifugal drive; in addition, the damping of the damping oil can prevent the reciprocating of the floating push rod at the critical speed from causing the transmission controller to open and close quickly, affecting the stability of the entire drive circuit.

[0026] As a further improvement of the present invention, a connecting flange is fixed by interference fit at the front end of the transmission shaft, and an adapter ring is fixed on the connecting flange by a combination bolt. The front end drive ring and the adapter ring are an integral injection molding structure, and an insulating bushing is sleeved on the threaded end of the combination bolt, and the end of the combination bolt is in contact with the wiring ring through the insulating bushing. The structure of the adapter ring allows the front end drive ring to be replaced independently, which is convenient for maintenance, and the integral injection molding structure is also more stable.

[0027] As a further improvement of the present invention, an insulating ring is fixedly connected in the transmission controller housing, the brush ring includes a conductive support ring, the outer ring of the conductive support ring is fixed to the inner ring of the insulating ring, the conductive support ring is connected to the incoming line end of the transmission controller housing through a wire, and a plurality of protruding pieces are arranged in an integrated annular array on the inner ring of the conductive support ring, and the ends of the protruding pieces are in contact with the surface of the conductive sleeve through elastic force;

[0028] The brush ring uses an integrated structure and achieves conductive contact through its own elastic force. Compared with the brush structure independently pushed by a coil spring, it is simpler and can reduce a certain degree of equipment complexity. It can also increase the conductive contact points and improve conductive stability.

[0029] As a further improvement of the present invention, the permanent magnet drive includes a drive housing, and a plurality of winding coils are arranged on the inner wall of the drive housing through a stator core wire frame array, the winding coils are star-connected, the winding coils are connected to the connection terminals of the permanent magnet drive, and the connection terminals are connected to the permanent magnet drive. The middle part of the drive housing is rotatably connected to an output shaft, and a plurality of rotor permanent magnets are arranged in a ring array on the output shaft, and the magnetic poles of adjacent permanent magnets are opposite.

[0030] As a further improvement of the present invention, a first cooling oil inlet interface is provided at one end of the transmission controller housing near the brush ring, a first cooling oil discharge interface is provided at one end of the transmission controller housing near the front end drive ring, and a cooling oil drive impeller is coaxially fixed at the front end of the transmission shaft; a second cooling oil inlet interface is provided at one end of the axis of the permanent magnet driver, and a second cooling oil discharge interface is provided at the other end of the axis of the permanent magnet driver;

[0031] The first cooling oil discharge interface and the second cooling oil introduction interface are connected through a high-pressure oil pipe; the first cooling oil introduction interface is connected to the oil outlet of the cooling oil pump, and the second cooling oil discharge interface is connected to the oil inlet of the cooling oil pump;

[0032] The cooling oil structure is driven by a transmission controller and a high-pressure oil pump. It can not only reduce the high temperature caused by friction through flow, but also lubricate the sliding structure and play a good arc extinguishing role. The rear end connected to the permanent magnet drive can reduce the heat generated by the permanent magnet drive during the charging and discharging process.

[0033] The beneficial effects of the present invention are:

[0034] 1. The present invention uses a set of speed control devices. When the internal combustion engine is at a stable high speed, the transmission controller is closed, the normally open contact of the relay is attracted, and the permanent magnet driver is driven by the internal combustion engine to charge the capacitor. When the capacitor is fully charged, the capacitor is disconnected, and the charging circuit is disconnected. The permanent magnet driver will not bring additional magnetic resistance to the rotation of the internal combustion engine; in addition, during the charging process, when the internal combustion engine is in an unstable rotation, the magnetic resistance of the permanent magnet driver will limit the speed jump of the internal combustion engine, thereby ensuring the smooth output of the internal combustion engine;

[0035] 2. When the internal combustion engine slows down due to lack of air or fuel, or the cutting mechanism encounters a large rotational resistance, the speed of the internal combustion engine decreases, and the transmission controller controls the normally open contact circuit of the relay to disconnect. At this time, the capacitor drives the permanent magnet motor to rotate through the permanent magnet motor discharge circuit, assisting the internal combustion engine in outputting torque and ensuring the stability of the speed until the internal combustion engine returns to a stable operating condition and the transmission controller is closed again; in this way, the capacitor will only intervene in the work when the speed of the internal combustion engine is low, discharging and charging energy, which greatly improves the life of the capacitor.

[0036] 3. Use a conductive contact piece to make conductive contact with the front conductive ring. Because the front drive ring needs to rotate all the time, if a floating push rod is used to directly slide in contact with the front conductive ring, it will cause great wear on the floating push rod. The elasticity of the conductive contact piece itself can compensate for the wear. Even if a larger conductive contact piece is worn, it will not affect the excessive change of the closing stroke of the floating push rod. In addition, the conductive contact piece increases the conductive contact area and stability of the floating push rod. The conductive contact piece can compensate for the impact caused by the extrusion of the floating push rod and prevent the pressure of the floating push rod from causing additional wear to the front conductive ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0038] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0039] Figure 2 yes Figure 1 The local schematic diagram of the A in the middle;

[0040] Figure 3 This is a diagram of the front end drive ring assembly;

[0041] Figure 4 is a schematic diagram of the structure of a conductive support ring;

[0042] Figure 5 is the schematic diagram of the control circuit;

[0043] In the figure: 1. Transmission shaft; 2. Connecting flange; 3. Adapter ring; 4. Front conductive ring; 5. Front drive ring; 5-1. Floating groove; 5-2. Floating valve block; 5-3. Push rod; 5-4. Sealing plate; 5-5. Guide sleeve; 5-6. Counterweight block; 5-7. End fixing bolt; 5-8. Feeding bolt; 5-9. Sealing bolt; 5-10. Return spring; 5-11. Adjusting bolt; 5-12. Damping hole; 5-13. Side fixing bolt; 5-14. Flexible wire; 5-15. Counterweight particles; 6. Insulating inner sleeve; 7. Combination bolt; 8. Wiring ring; 9. Conductive sleeve; 10. Transmission controller housing; 11. Transmission controller back cover; 12. Insulating ring; 13. Insulation Casing tube; 14, tail push sleeve; 15, limit ring; 16, inlet terminal; 17, outlet terminal; 18, cooling oil drive impeller; 19, first cooling oil inlet interface; 20, first cooling oil discharge interface; 21, internal combustion engine input flange; 22, transmission output flange; 23, permanent magnet input flange; 24, output shaft; 25, permanent magnet connecting frame; 26, permanent magnet; 27, stator core wire frame; 28, insulation layer; 29, winding coil; 30, drive housing; 31, second cooling oil inlet interface; 32, second cooling oil discharge interface; 33, permanent magnet motor interface; 34, end output flange; 35, conductive contact piece; 36, fastening bolt; 37, conductive support ring; 37-1, protrusion piece. DETAILED DESCRIPTION

[0044] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0045] A hybrid power gapless cutting drive system comprises a transmission controller, a permanent magnet drive and a control circuit.

[0046] like Figure 1The transmission controller includes a transmission controller housing 10, a rear cover is provided at the rear of the transmission controller housing 10, a transmission shaft 1 is rotatably connected in the middle of the transmission controller housing 10, one end of the transmission shaft 1 is connected to the rotation output end of the internal combustion engine through the internal combustion engine input flange 21, and the other end of the transmission shaft 1 is connected to the transmission output flange 22, a connecting flange 2 is coaxially fixed in the middle of the transmission shaft 1, and a front end driving ring 5 is coaxially fixed on the transmission shaft 1 by the connecting flange 2 through the combination bolt 7; the front end driving ring 5 is made of insulating material, and an alloy adapter ring 3 is fixed to the inner ring of the front end driving ring 5 by integral injection molding, and the adapter ring 3 and the connecting flange 2 are fixed to each other.

[0047] like Figure 1 , Figure 2 and Figure 3 , a plurality of floating contact mechanisms are arranged in an annular array on the wall surface of the front end driving ring 5; the floating contact mechanism comprises a floating groove 5-1 arranged in the front end driving ring 5, a floating component is floatingly connected in the floating groove 5-1, the floating component comprises a floating valve block 5-2, the floating valve block 5-2 is made of conductive material, the floating groove 5-1 is filled with damping oil, a counterweight particle 5-15 is filled between the floating valve block 5-2 and the bottom of the floating groove 5-1, a plurality of damping holes 5-12 for the damping oil to pass through are arranged on the floating slider, a feeding bolt 5-8 for filling the damping oil is arranged on the side wall of the floating groove 5-1, a floating push rod is vertically fixedly connected to the middle of the floating valve block 5-2, and the floating push rod comprises a plurality of groups of sub-push rods 5-3 arranged in an array along the rotation axis of the front end driving ring 5; the floating groove 5-1 with an opening on the outer edge surface of the front end driving ring 5 is provided with a sealing sheet 5-4 at the opening of the floating groove 5-1, and both ends of the sealing sheet 5-4 are fixed by sealing bolts 5-9 To the side wall of the front-end driving ring 5, the push rod 5-3 is slidably connected through the guide sleeve 5-5 in the middle of the sealing plate 5-4, a return spring 5-10 is arranged between the end of the floating valve block 5-2 and the inner side of the wall of the front-end driving ring 5, and an adjusting bolt 5-11 for adjusting the preload degree of the return spring 5-10 is threadedly connected on the sealing plate 5-4; the push rod 5-3 is fixed to the floating valve block 5-2 through the end fixing bolt 5-7, a counterweight block 5-6 is embedded in the end of the floating valve block 5-2, and the counterweight block 5-6 is also fixed through the end fixing bolt 5-7, and a flexible wire 5-14 is fixed on the end fixing bolt 5-7, and a wiring ring 8 is fixed on the side of the front-end driving ring 5, and the wiring ring 8 is fixed to the side fixing bolt 5-13 on the side of the front-end driving ring 5 through a plurality of annular arrays, and a plug hole is arranged in the middle of the side fixing bolt 5-13, and the other end of the flexible wire 5-14 is sealed and inserted into the side fixing bolt 5-13 through the plug hole.

[0048] like Figure 1 and Figure 3The floating contact mechanism also includes a conductive contact piece 35 arranged in a circular array on the outer wall of the front end driving ring 5. The conductive contact piece 35 has a bent portion, which is fixed to the side wall of the front end driving ring 5 by a fastening bolt 36. The conductive contact piece 35 is located above the floating push rod.

[0049] like Figure 1 The tail end of the transmission shaft 1 is a step structure, and an insulating ring 12 is coaxially fixed at the tail end of the transmission shaft 1 through the step end with a smaller diameter of the transmission shaft 1. The insulating ring 12 is pressed and fixed by a tail push sleeve 14 that is interference-fitted with the tail of the transmission shaft 1. A conductive sleeve 9 is sleeved on the outside of the insulating ring 12. The conductive sleeve 9 and the wiring ring 8 are an integrally formed structure. The conductive sleeve 9 is fixed by a limit ring 15 fixed on the outside of the transmission shaft 1. The conductive sleeve 9 is fixed on the transmission shaft 1 through an insulating sleeve 13 sleeved on the wall of the transmission shaft 1. A brush ring is fixed in the transmission controller housing 10, and the insulating ring 12 is fixedly connected in the transmission controller housing 10. The outer ring of the insulating ring 12 is provided with a flange structure. The outer ring of the insulating ring 12 and the flange structure at the tail end of the insulating inner sleeve 6 are stacked on each other and clamped between the front end of the transmission controller housing 10 and the rear cover 11 of the transmission controller. The brush ring includes a conductive support ring 37, such as Figure 4 The outer ring of the conductive support ring 37 is fixed to the inner ring of the insulating ring 12, and the conductive support ring 37 is connected to the line inlet terminal 16 of the transmission controller housing 10 through a wire. A plurality of protrusions 37-1 are arranged in an integrated annular array on the inner ring of the conductive support ring 37, and the end of the protrusion 37-1 contacts the surface of the conductive sleeve 9 through elastic force.

[0050] like Figure 1 , a permanent magnet drive, the permanent magnet drive includes a permanent magnet rotor motor, the permanent magnet rotor motor is connected to the permanent magnet motor drive circuit through a permanent magnet motor interface 33, the rotor of the permanent magnet rotor motor is fixed on the output shaft 24, one end of the output shaft 24 is coaxially fixedly connected to the transmission shaft 1 through a permanent magnet input flange 23, the other end of the output shaft 24 is connected to the reduction gear box through a terminal output flange 34, the output end of the reduction gear box is connected to the cutting head, the permanent magnet drive includes a drive housing 30, a plurality of winding coils 29 are arranged on the inner wall of the drive housing 30 through a stator core wire frame 27 array, the winding coils 29 are fixed to the core frame through an insulating layer 28, the winding coils 29 are star-connected, the winding coils 29 are connected to the connection terminals of the permanent magnet drive, the connection terminals are connected to the permanent magnet motor drive circuit of the permanent magnet drive, the output shaft 24 is fixed with a plurality of rotor permanent magnets 26 in a ring array through a permanent magnet connecting frame 25, and the magnetic poles of adjacent permanent magnets 26 are opposite;

[0051] like Figure 5The control circuit includes a relay, a capacitor, a permanent magnet motor charging circuit and a permanent magnet motor discharging circuit. The permanent magnet motor charging circuit and the permanent magnet motor discharging circuit are connected in parallel to the connection end of the permanent magnet motor drive circuit. The normally open contact of the relay is connected to the permanent magnet motor charging circuit. The permanent magnet motor charging circuit is connected to the input end of the capacitor through an energy storage rectifier circuit. The normally closed contact of the relay is connected to the permanent magnet motor discharging circuit. The permanent magnet motor discharging circuit is connected to the output end of the capacitor; the control end of the relay is connected to the low-voltage rectifier circuit through the relay control circuit, the input end of the low-voltage rectifier circuit is connected to the output end of the capacitor, and the transmission controller is connected to the relay control circuit.

[0052] Among them, a front end conductive ring 4 is arranged on the inner wall of the transmission controller housing 10, and the front end conductive ring 4 is fixed in an insulating inner sleeve 6, and the insulating inner sleeve 6 is embedded in the inner wall of the transmission controller housing 10, and the end of the conductive contact piece 35 is pressed against the inner wall surface of the front end conductive ring 4 by elastic force;

[0053] The floating push rod is synchronously connected with a return spring 5-10, and the return spring 5-10 pushes the floating push rod to move toward the center of the front drive ring 5;

[0054] The rear end of the floating push rod is conductively connected to the conductive sleeve 9 through a conductive connector;

[0055] The brush ring is conductively connected to the line-in terminal 16 of the transmission controller, and the front conductive ring 4 is connected to the line-out terminal 17 of the transmission controller.

[0056] Among them; a first cooling oil inlet interface 19 is provided at one end of the transmission controller housing 10 close to the brush ring, a first cooling oil discharge interface 20 is provided at one end of the transmission controller housing 10 close to the front end drive ring 5, and a cooling oil drive impeller 18 is coaxially fixed at the front end of the transmission shaft 1; a second cooling oil inlet interface 31 is provided at one end of the axis of the permanent magnet driver, and a second cooling oil discharge interface 32 is provided at the other end of the axis of the permanent magnet driver;

[0057] Among them, the first cooling oil discharge interface 20 and the second cooling oil inlet interface 31 are connected through a high-pressure oil pipe; the first cooling oil inlet interface 19 is connected to the oil outlet end of the cooling oil pump, and the second cooling oil discharge interface 32 is connected to the oil inlet end of the cooling oil pump.

[0058] The present invention uses a set of speed control devices. When the internal combustion engine is at a stable high speed, the transmission controller is closed, the normally open contacts of the relay are energized, and the permanent magnet driver is driven by the internal combustion engine to charge the capacitor. When the capacitor is fully charged, the capacitor is short-circuited, and the charging circuit is disconnected. The permanent magnet driver will not bring additional magnetic resistance to the rotation of the internal combustion engine. In addition, during the charging process, when the internal combustion engine is in an unstable rotation, the magnetic resistance of the permanent magnet driver will limit the speed jump of the internal combustion engine, thereby ensuring the smoothness of the internal combustion engine output.

[0059] In the default state of the transmission controller, the entire front end drive ring 5 is at a stable speed due to the drive of the internal combustion engine; in the default state, there is a certain gap between the conductive contact piece 35 and the front end conductive ring 4 or there is a slight contact with the front end conductive ring 4, and when the front end drive ring 5 is at a stable high speed, the floating valve block 5-2 will be driven by the centrifugal force of the counterweight block 5-6 and the counterweight particles 5-15 to push the sub-push rod 5-3 out toward the outside of the front end drive ring 5, and the end of the sub-push rod 5-3 will contact the conductive contact piece 35, and push the conductive contact piece 35 to connect with the front end conductive ring 4. The brush ring 5-10 is in contact with the conductive sleeve 9 to realize the conduction of the entire transmission controller, and the other circuit is realized by the conductive contact between the brush ring and the conductive sleeve 9; when the speed is insufficient and the centrifugal force is insufficient to support the elastic force of the return spring 5-10, due to the presence of the damping oil, the return spring 5-10 will drive the floating valve block 5-2 to slowly recover, and separate the scoring push rod 5-3 from the conductive contact sheet 35, so that the transmission controller is disconnected. When the transmission controller is disconnected, the normally open contacts of the relay will lose power and disconnect, while the normally closed contacts will be attracted, thereby opening the output circuit of the relay to the permanent magnet driver and realizing the rotation of the permanent magnet driver.

[0060] At the same time, the high-pressure oil pump will inject cooling oil into the transmission controller through the first cooling oil inlet interface 19 to cool several sliding friction parts, and then discharge it into the permanent magnet driver through the first cooling oil discharge interface 20 and the second cooling oil inlet interface 31. Here, the cooling oil will be driven by the cooling oil impeller 18 driven by the transmission shaft 1 to provide a certain driving force for the cooling oil. Then the cooling oil will cool the heated permanent magnet driver and finally be discharged through the second cooling oil discharge interface 32 and return to the high-pressure oil pump. The high-pressure oil pump bypasses a low-pressure circulation pipeline to connect the heat exchanger for circulating cooling of the oil.

[0061] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hybrid gapless cutting drive system; characterized in that: include: A transmission controller, the transmission controller comprises a transmission controller housing (10), a transmission shaft (1) is rotatably connected in the middle of the transmission controller housing (10), one end of the transmission shaft (1) is connected to the rotation output end of the internal combustion engine, a front end driving ring (5) is coaxially fixedly connected in the middle of the transmission shaft (1), and the front end driving ring (5) is made of insulating material; a plurality of floating contact mechanisms are arranged in an annular array on the wall surface of the front end driving ring (5); the floating contact mechanism comprises a floating component arranged in an annular array and in the front end driving ring (5), the floating component comprises a floating push rod, ... The floating push rod is slidably connected to the front end driving ring (5), and a counterweight block (5-6) is arranged at the end of the floating push rod; the floating contact mechanism also includes a conductive contact piece (35) arranged in a ring array on the outer side wall of the front end driving ring (5), and the conductive contact piece (35) is located above the floating push rod; a conductive sleeve (9) is coaxially fixed at the rear end of the transmission shaft (1), and the conductive sleeve (9) is fixed to the transmission shaft (1) through an insulating sleeve (13) sleeved on the wall of the transmission shaft (1); a brush ring is fixed in the transmission controller housing (10), and the brush ring and the conductive sleeve (9) are in sliding contact; A permanent magnet drive, the permanent magnet drive comprising a permanent magnet rotor motor, the permanent magnet rotor motor being connected to a permanent magnet motor drive circuit, the rotor of the permanent magnet rotor motor being fixed on an output shaft (24), one end of the output shaft (24) being coaxially fixedly connected to a transmission shaft (1), the other end of the output shaft (24) being connected to a reduction gear box, the output end of the reduction gear box being connected to a cutting head; And, a control circuit, the control circuit includes a relay, a capacitor, a permanent magnet motor charging circuit and a permanent magnet motor discharging circuit, the permanent magnet motor charging circuit and the permanent magnet motor discharging circuit are connected in parallel to the connection end of the permanent magnet motor drive circuit, the normally open contact of the relay is connected to the permanent magnet motor charging circuit, the permanent magnet motor charging circuit is connected to the input end of the capacitor through the energy storage rectifier circuit, the normally closed contact of the relay is connected to the permanent magnet motor discharging circuit, and the permanent magnet motor discharging circuit is connected to the output end of the capacitor; the control end of the relay is connected to the low-voltage rectifier circuit through the relay control circuit, the input end of the low-voltage rectifier circuit is connected to the output end of the capacitor, and the transmission controller is connected to the relay control circuit; A front end conductive ring (4) is arranged on the inner wall of the transmission controller housing (10), the front end conductive ring (4) is fixed in an insulating inner sleeve (6), the insulating inner sleeve (6) is embedded in the inner wall of the transmission controller housing (10), and the end of the conductive contact piece (35) is pressed against the inner wall surface of the front end conductive ring (4) by elastic force; The floating push rod is synchronously connected with a return spring (5-10), and the return spring (5-10) pushes the floating push rod to move toward the center of the front drive ring (5); The rear end of the floating push rod is conductively connected to the conductive sleeve (9) via a conductive connector; The brush ring is conductively connected to the input terminal (16) of the transmission controller, and the front end conductive ring (4) is connected to the output terminal (17) of the transmission controller.

2. A hybrid gapless cutting drive system as claimed in claim 1, characterized in that: The floating contact mechanism also includes a floating groove (5-1) arranged in the front end driving ring (5), a floating component is floatingly connected in the floating groove (5-1), and the floating component includes a floating valve block (5-2). The floating valve block (5-2) is made of conductive material, and a floating push rod is vertically fixedly connected to the middle of the floating valve block (5-2). The floating push rod passes through the outer edge wall surface of the front section driving ring and is slidably connected to the outer edge wall surface. A return spring (5-10) is arranged between the end of the floating valve block (5-2) and the inner side of the wall surface of the front end driving ring (5), and the counterweight block (5-6) is embedded in the floating valve block (5-2).

3. A hybrid gapless cutting drive system as claimed in claim 2, characterized in that: The end fixing bolt (5-7) of the floating push rod is fixed to the floating valve block (5-2), a flexible wire (5-14) is fixed to the end fixing bolt (5-7), a wiring ring (8) having an integral structure with the conductive sleeve (9) is fixed to the side of the front end driving ring (5), the wiring ring (8) is fixed to the side fixing bolt (5-13) on the side of the front end driving ring (5) through a plurality of annular arrays, a plug hole is provided in the middle of the side fixing bolt (5-13), and the other end of the flexible wire (5-14) is sealed and inserted into the side fixing bolt (5-13) through the plug hole.

4. A hybrid power gapless cutting drive system as claimed in claim 2, characterized in that: the front end A floating groove (5-1) with an opening on the outer edge surface of the driving ring (5) is provided with a sealing sheet (5-4) at the opening of the floating groove (5-1), and a floating push rod is slidably connected to the middle of the sealing sheet (5-4) via a guide sleeve (5-5).

5. A hybrid gapless cutting drive system as claimed in claim 2, characterized in that: The floating push rod comprises a plurality of groups of sub-push rods (5-3) arranged in an array along the rotation axis of the front end driving ring (5).

6. A hybrid gapless cutting drive system as claimed in claim 2, characterized in that: The floating groove (5-1) is filled with damping oil, the floating valve block (5-2) and the bottom of the floating groove (5-1) are filled with weight particles (5-15), and a plurality of damping holes (5-12) for the damping oil to pass through are arranged through the floating slider.

7. A hybrid power gapless cutting drive system as claimed in claim 2, characterized in that: A connecting flange (2) is fixed to the front end of the transmission shaft (1) by interference fit, and an adapter ring (3) is fixed to the connecting flange (2) by means of a combination bolt (7). The front end driving ring (5) and the adapter ring (3) are an integral injection-molded structure, an insulating bushing is sleeved on the threaded end of the combination bolt (7), and the end of the combination bolt (7) contacts the wiring ring (8) via the insulating bushing.

8. A hybrid power gapless cutting drive system as claimed in claim 1, characterized in that: An insulating ring (12) is fixedly connected inside a transmission controller housing (10), the brush ring comprising a conductive support ring (37), the outer ring of the conductive support ring (37) being fixed to the inner ring of the insulating ring (12), the conductive support ring (37) being connected to an inlet terminal (16) of the transmission controller housing (10) via a wire, a plurality of protrusions (37-1) being arranged in an integral annular array on the inner ring of the conductive support ring (37), the ends of the protrusions (37-1) being in contact with the surface of a conductive sleeve (9) via elastic force.

9. A hybrid power gapless cutting drive system as claimed in claim 1, characterized in that: The permanent magnet driver comprises a driver housing (30), a plurality of winding coils (29) are arranged in an array on the inner wall of the driver housing (30) through a stator core wire frame (27), the winding coils (29) are connected in a star shape, the winding coils (29) are connected to a connection terminal of the permanent magnet driver, the connection terminal is connected to the permanent magnet driver, an output shaft (24) is rotatably connected to the middle of the driver housing (30), a plurality of rotor permanent magnets (26) are arranged in an annular array on the output shaft (24), and the magnetic poles of adjacent permanent magnets (26) are opposite.

10. A hybrid gapless cutting drive system as claimed in claim 1, characterized in that: A first cooling oil inlet interface (19) is provided at one end of the transmission controller housing (10) close to the brush ring, a first cooling oil outlet interface (20) is provided at one end of the transmission controller housing (10) close to the front end drive ring (5), and a cooling oil drive impeller (18) is coaxially fixed at the front end of the transmission shaft (1); a second cooling oil inlet interface (31) is provided at one end of the axis of the permanent magnet driver, and a second cooling oil outlet interface (32) is provided at the other end of the axis of the permanent magnet driver; The first cooling oil discharge interface (20) and the second cooling oil inlet interface (31) are connected via a high-pressure oil pipe; the first cooling oil inlet interface (19) is connected to the oil outlet of the cooling oil pump, and the second cooling oil discharge interface (32) is connected to the oil inlet of the cooling oil pump.

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