Efficient generator for paver thermal insulation system

Abstract

The invention relates to the technical field of generators, in particular to an efficient generator for a paver heat preservation system, which comprises a protection mechanism, a generator stator is arranged on the inner wall of the protection mechanism, and a rotatable rotor mechanism is arranged at the axis of the generator stator; the protection mechanism comprises a generator shell, the left side and the right side of the generator shell are closed, an air inlet hole is formed in the right side of the generator shell, and an air outlet hole is formed in the left side of the generator shell. During use, two sides of the rotor core are respectively provided with two connecting bearings, a first permanent magnet is arranged between the two connecting bearings at the same side, and an air supply piece and an air exhaust piece are arranged on the outer surfaces of the connecting bearings in an interference fit mode; the air supply part and the air exhaust part rotate under the traction of the magnetic force, and the rotation of the rotor core is not affected too much no matter whether the air supply part and the air exhaust part are affected by wind resistance or clamped, so that the effect of efficient power generation is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of generator technology, in particular to a high-efficiency generator for paving machine heat preservation system. BACKGROUND

[0002] The paving machine is a construction equipment mainly used for paving various materials on the base and surface layer of the highway. It is completed by various systems cooperating with each other to complete the paving work, mainly including a walking system, a hydraulic system, a conveying and distributing system, etc. When paving materials such as asphalt, the materials need to be kept warm to avoid solidification. Therefore, the heat preservation system needs to be provided with electric energy by the generator to ensure the normal operation of the heat preservation system.

[0003] When the generator works, the rotor inside the generator rotates at high speed and cuts the magnetic force lines with the stator, thereby generating an induced electromotive force, which is led out through the terminal and connected in the circuit, thereby generating an electric current. Therefore, the rotation efficiency of the rotor directly affects the power generation efficiency of the generator. However, the paving machine often works in a high-temperature environment, so a corresponding fan is arranged in the generator for heat dissipation. When the rotor drives the fan to rotate, the fan will generate friction with the air to form wind resistance, thereby causing the need for greater driving force to reach the same rotating speed, resulting in the reduction of the power generation efficiency of the generator.

[0004] Therefore, the present application provides a high-efficiency generator for paving machine heat preservation system, which is used to reduce the influence of wind resistance on the rotating speed of the rotor while dissipating heat. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a high-efficiency generator for paving machine heat preservation system, which is used to solve the problem that the wind resistance easily reduces the efficiency of the generator mentioned in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application provides a high-efficiency generator for paving machine heat preservation system, which comprises a protection mechanism, the inner wall of the protection mechanism is provided with a generator stator, and the axis of the generator stator is provided with a rotatable rotor mechanism. The protection mechanism comprises a generator housing, the left and right sides of the generator housing are closed, the right side of the generator housing is provided with an air inlet hole, and the left side of the generator housing is provided with an air outlet hole. The rotor mechanism comprises a transmission shaft, the transmission shaft is concentrically arranged with the generator stator; the left end of the transmission shaft is supported and rotationally connected by the inner wall of the left end of the generator housing; the right end of the transmission shaft penetrates the right side of the generator housing, the outer surface of the transmission shaft is provided with a rotor core, and the rotor core is located in the inside of the generator stator and is concentrically arranged with the generator stator. The outer surfaces of the transmission rotating shafts on the two sides of the rotor core are respectively provided with two connecting bearings, the connecting bearing on the right side of the rotor core is located outside the generator shell, a plurality of first permanent magnets are equidistantly arranged between the two connecting bearings, the outer surfaces of the two connecting bearings are respectively provided with air supply members and air exhaust members from right to left, the air supply members and the air exhaust members are all magnetically coupled with the first permanent magnets, and the right end of the generator shell is provided with a separable filtering mechanism for covering the air supply members.

[0007] Preferably, the air supply member comprises a sleeve, the sleeve is sleeved on the outer surfaces of the two connecting bearings, the inner wall of the sleeve is provided with second permanent magnets matched with the first permanent magnets, and the outer surface of the sleeve is provided with air supply blades.

[0008] Preferably, the air exhaust member is the same in structure and connection mode as the air supply member.

[0009] Preferably, the outer surface of the rotor core is equidistantly provided with a plurality of air guide grooves.

[0010] Preferably, the end of the rotor core is equidistantly provided with a plurality of air guide holes, and the air guide holes respectively penetrate the left and right ends of the rotor core.

[0011] Preferably, the air guide holes are equidistantly provided with a plurality of air expansion holes in the axial direction of the rotor core, and the air expansion holes are communicated with the air guide grooves.

[0012] Preferably, all the air expansion holes are filled with sound-absorbing members, and the sound-absorbing members are provided with a plurality of communicated sound-absorbing holes.

[0013] Preferably, the air inlet holes are a plurality of equidistantly distributed penetrating holes, and the air inlet holes are radially distributed.

[0014] Preferably, the generator shell is provided with a blocking column between two adjacent penetrating holes on the right side, and the blocking column is in a columnar structure.

[0015] Preferably, the filtering mechanism comprises a protective cover, a plurality of air inlet filtering holes are equidistantly arranged on the side surface of the protective cover, and the air supply member is located in the interior of the protective cover.

[0016] As described above, the high-efficiency generator for a paving machine heat preservation system has the following beneficial effects: 1. In the application, two connecting bearings are arranged on the two sides of the rotor core, first permanent magnets are arranged between the two connecting bearings on the same side, air supply members and air exhaust members are arranged on the outer surfaces of the connecting bearings in the interference fit mode, when the transmission rotating shaft is driven to rotate, the air supply members and the air exhaust members rotate under the magnetic traction, and the rotation of the rotor core is not affected too much whether the air supply members and the air exhaust members are affected by wind resistance or are stuck, thereby achieving the effect of high-efficiency power generation.

[0017] 2、The generator of the present application increases the ventilation channel between the stator and the rotor core by setting the air guide groove on the outer surface of the rotor core, and sets the air guide hole on the end of the rotor core, so that the air flow can accelerate the heat dissipation of the rotor core through the air guide hole, and the air flow entering the air guide hole will be blown out from the air expansion hole directly to the inner wall of the generator stator under the rotation of the rotor core, so as to improve the heat dissipation performance of the generator.

[0018] 3、The present application fills the sound-absorbing part in the air expansion hole, and sets a plurality of sound-absorbing holes in the sound-absorbing part, so that the sound-absorbing part can reduce or avoid the vibration and noise generated by the air flow through the air expansion hole when the rotor core rotates at high speed, thereby reducing noise.

[0019] 4、The present application sets a plurality of blocking columns on the side of the air inlet hole facing the air supply part for blocking external sundries, and sets a protective cover on the outer surface of the air supply part, and sets an air inlet filter hole on the side of the protective cover, so that the external air flow blowing to the air supply part from the side is reduced, the windward area of the air supply part is reduced, the air resistance received by the air supply part is reduced, the rotation efficiency of the air supply part is improved, and the external air flow directly blowing to the air inlet hole is avoided, thereby improving the heat dissipation performance while reducing the sundries entering between the generator stator and the rotor core.

[0020] Therefore, the present application effectively overcomes the various shortcomings in the prior art and has high industrial utilization value. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the present application is shown.

[0022] Figure 2 The structure of the present application is shown.

[0023] Figure 3 The structure of the rotor mechanism of the present application is shown.

[0024] Figure 4 The structure of the first permanent magnet of the present application is shown.

[0025] Figure 5 The structure of the air supply part of the present application is shown.

[0026] Figure 6 The structure of the present application Figure 5 The structure of the present application

[0027] Figure 7 The structure of the rotor core of the present application is shown.

[0028] Figure 8 The structure of the air inlet hole of the present application is shown.

[0029] Figure 9 The structure shown at B in the present application Figure 8 is enlarged.

[0030] Element number explanation: 1, protection mechanism; 11, generator shell; 12, air inlet hole; 13, air outlet hole; 14, blocking column; 2, generator stator; 3, rotor mechanism; 31, transmission rotating shaft; 32, rotor core; 321, air guide groove; 322, air guide hole; 323, air expansion hole; 324, silencer; 33, connecting bearing; 34, first permanent magnet; 35, air supply member; 351, sleeve; 352, second permanent magnet; 353, air supply fan blade; 36, air exhaust member; 4, filtering mechanism; 41, protective cover; 42, air inlet filter hole. DETAILED DESCRIPTION

[0031] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0032] Please refer to Figures 1 to 9 . It should be understood that the structure, proportion, size, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the defined conditions under which the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope in which the present application can be implemented, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope in which the present application can be implemented.

[0033] As Figures 1-4 shown, the present application provides a high-efficiency generator for a paving machine heat preservation system, which comprises a protection mechanism 1, the inner wall of the protection mechanism 1 is provided with a generator stator 2, the axis of the generator stator 2 is provided with a rotatable rotor mechanism 3, the rotor mechanism 3 cuts the magnetic force line when rotating, thereby generating an induced potential, which is led out through a terminal, and connected to a loop, thereby generating a current; the generator stator 2 has the same electronic structure as the existing generator, and is provided with a stator core, a stator winding and other necessary structures.

[0034] Specific, protection mechanism 1 includes generator housing 11, the left and right sides of generator housing 11 are closed, the right side of generator housing 11 is provided with air inlet hole 12, the left side of generator housing 11 is provided with air outlet hole 13, thereby forming air flow channel, external air flow enters from air inlet hole 12 and blows out from air outlet hole 13 after passing through the gap between generator stator 2 and rotor mechanism 3, to realize the heat dissipation cooling of the inside of generator housing 11. Rotor mechanism 3 includes transmission shaft 31, transmission shaft 31 is concentrically arranged with generator stator 2; the left end of transmission shaft 31 is supported and rotationally connected by the inner wall of the left end of generator housing 11; the right end of transmission shaft 31 penetrates the right side of generator housing 11, the outer surface of transmission shaft 31 is provided with rotor core 32, rotor core 32 is located in the inside of generator stator 2 and is concentrically arranged with generator stator 2, when transmission shaft 31 is driven to rotate by external power, rotor core 32 rotates around the axis of generator stator 2, thereby cutting the magnetic force line of generator stator 2 to realize power generation.

[0035] The outer surfaces of transmission shaft 31 on both sides of rotor core 32 are respectively provided with two connecting bearings 33, the connecting bearing 33 located on the right side of rotor core 32 is located outside generator housing 11; a plurality of first permanent magnets 34 are equidistantly arranged between the two connecting bearings 33, the outer surfaces of the two connecting bearings 33 from right to left are respectively provided with air supply member 35 and air exhaust member 36, air supply member 35 and air exhaust member 36 are all magnetically coupled with first permanent magnet 34; when transmission shaft 31 rotates, first permanent magnet 34 drives air supply member 35 and air exhaust member 36 to rotate through magnetic coupling, thereby the external air is sucked into the inside of generator housing 11 through air supply member 35, and the air in the inside of generator housing 11 is quickly exhausted through air exhaust member 36, thereby realizing rapid heat dissipation; when the air flow causes resistance to air supply member 35 or air exhaust member 36, the speed of air supply member 35 and air exhaust member 36 will relatively decrease; however, because air supply member 35 and air exhaust member 36 are connected through connecting bearing 33, it will not cause too much interference to the rotation of transmission shaft 31, so as to improve the working efficiency of the generator, and after transmission shaft 31 stops rotating, air supply member 35 and air exhaust member 36 will continue to rotate for a period of time under the action of inertia to dissipate heat; the heat is low at the initial stage of generator starting, air supply member 35 and air exhaust member 36 slowly rotate under the magnetic traction, which will not cause too much influence on heat dissipation, when transmission shaft 31 stably rotates, air supply member 35 and air exhaust member 36 will stably rotate under the continuous magnetic traction; the right end of generator housing 11 is provided with separable filter mechanism 4 to cover and protect air supply member 35.

[0036] As Figure 5 And Figure 6As shown in FIG. 1 and FIG. 2, in some embodiments, the air supply part 35 of the application comprises a sleeve 351 which is sleeved on the outer surface of the two connecting bearings 33 in an interference fit, so that there is a gap between the inner wall of the sleeve 351 and the outer surface of the transmission shaft 31, so that there is no friction between the sleeve 351 and the transmission shaft 31 when the sleeve 351 rotates; the inner wall of the sleeve 351 is provided with a second permanent magnet 352 which is matched with the first permanent magnet 34, so that when the first permanent magnet 34 rotates, the second permanent magnet 352 will be driven to rotate under the action of magnetic force, and then the sleeve 351 will rotate; the outer surface of the sleeve 351 is provided with air supply blades 353, which will drive air to flow into the inside of the generator housing 11 when the air supply blades 353 rotate with the sleeve 351, thereby cooling the inside of the generator housing 11 by external cold air.

[0037] It should be noted that the structure of the air exhaust part 36 and the air supply part 35 and the connection mode with the connecting bearing 33 are the same, so that the air exhaust part 36 also has all the characteristics of the air supply part 35 described above, and can extract hot air in the generator housing 11 to the outside of the generator housing 11.

[0038] As shown in FIG. 1 and FIG. 2, Figure 3 and Figure 4 in some embodiments, the outer surface of the rotor core 32 of the application is provided with a plurality of air guide grooves 321 at equal intervals, which can increase the amount of cold air passing between the rotor core 32 and the generator stator 2 when the air supply part 35 delivers cold air to the inside of the generator housing 11, thereby accelerating the heat dissipation effect.

[0039] As shown in FIG. 1 and FIG. 2, Figure 4 and Figure 7 in some embodiments, the end of the rotor core 32 of the application is provided with a plurality of air guide holes 322 at equal intervals, which respectively penetrate the left and right ends of the rotor core 32, and after the cold air enters the inside of the generator housing 11, part of the cold air will pass through the gap between the rotor core 32 and the generator stator 2 to dissipate heat on the outer surface of the rotor core 32 and the inner wall of the generator stator 2 respectively; because of the reduction of airflow passage, the cold air cannot pass through the gap between the generator stator 2 and the rotor core 32 quickly, so as to pass through the air guide hole 322, which can effectively dissipate heat inside the rotor core 32 to improve the heat dissipation efficiency.

[0040] As shown in FIG. 1 and FIG. 2, Figure 3 and Figure 4As shown in the figure, in some embodiments, the air guide hole 322 is provided with a plurality of air expansion holes 323 equidistant along the axial direction of the rotor core 32, and the air expansion holes 323 are in communication with the air guide groove 321; when the cold air enters the inside of the air guide hole 322, the rotation of the rotor core 32 will increase the resistance, at this time, the airflow will be discharged from the air expansion hole 323, reducing the resistance of the air to the rotor core 32; at the same time, the air flowing out of the air expansion hole 323 will blow to the inner wall of the generator stator 2 under the action of centrifugal force, thereby accelerating the heat dissipation of the generator stator 2, and realizing the reduction of resistance by increasing the heat dissipation performance of the generator stator 2.

[0041] As shown in the figure, Figure 3 and Figure 4 As shown in the figure, in some embodiments, all the air expansion holes 323 of the application are filled with sound-absorbing members 324, and the sound-absorbing members 324 are provided with a plurality of sound-absorbing holes in communication; when the airflow passes through the air expansion hole 323 at high speed, the air will produce airflow vibration due to the rotation of the rotor core 32, which will produce noise, and when the noise and the equipment produce the same frequency resonance, it will affect the service life of the equipment; therefore, the noise is absorbed and eliminated by the porous structure of the sound-absorbing member 324.

[0042] Because the paver is often in a high-temperature working environment, the above structure for improving the heat dissipation efficiency is designed to improve the stability of the generator working in a high-temperature environment.

[0043] As shown in the figure, Figure 8 In some embodiments, the air inlet hole 12 of the application is a plurality of equidistant through holes, and the air inlet hole 12 is distributed in a radial manner, so that the airflow can uniformly act on the generator stator 2 and the rotor core 32 inside the generator shell 11, so as to avoid the damage of the wire winding caused by too strong airflow.

[0044] As shown in the figure, Figure 8 and Figure 9 As shown in the figure, in some embodiments, the generator shell 11 of the application is provided with a blocking column 14 between two adjacent through holes on the right side, and the blocking column 14 is a columnar structure; the working environment of the paver is often complex, so the air often contains fluff-like substances; in order to reduce the fluff-like substances from entering the inside of the generator shell 11, the blocking column 14 is arranged, and part of the fluff-like substances will be blocked and wound on the blocking column 14 when the airflow passes through the air inlet hole 12.

[0045] As shown in the figure, Figure 1 and Figure 2As shown, in some embodiments, the filter mechanism 4 of the application includes a protective cover 41 which is detachably mounted on the end of the generator housing 11, and a plurality of air inlet filter holes 42 are equidistantly arranged on the side of the protective cover 41, and the air supply part 35 is located inside the protective cover 41, when the air supply part 35 rotates to suck air, the external airflow is sucked into the softening airflow from the air inlet filter holes 42 on the side of the protective cover 41, avoiding the external airflow directly rushing into the inside of the generator housing 11; in order to reduce the dust and the like entering the inside of the generator housing 11 through the air inlet filter holes 42, a filter screen for filtering dust can be arranged in the air inlet filter holes 42.

[0046] In summary, the high-efficiency generator for the paving machine heat preservation system of the application, by arranging two connecting bearings 33 on the two sides of the rotor core 32 respectively, and arranging a first permanent magnet 34 between the two connecting bearings 33 on the same side, and arranging an air supply part 35 and an air exhaust part 36 on the outer surface of the connecting bearing 33 in a interference fit manner, when the transmission shaft 31 is driven to rotate, the air supply part 35 and the air exhaust part 36 rotate under the magnetic traction, no matter whether the air supply part 35 and the air exhaust part 36 are affected by wind resistance or are stuck, the rotation of the rotor core 32 will not be affected too much, and the effect of high-efficiency power generation is achieved.

[0047] The application increases the ventilation channel between the generator stator 2 and the rotor core 32 by arranging an air guide groove 321 on the outer surface of the rotor core 32, and arranging an air guide hole 322 at the end of the rotor core 32, the airflow can accelerate the heat dissipation of the rotor core 32 through the air guide hole 322, and part of the airflow entering the air guide hole 322 will be blown out from the air expansion hole 323 to directly act on the inner wall of the generator stator 2 under the rotation of the rotor core 32, and the effect of improving the heat dissipation performance of the generator is achieved.

[0048] The application fills the air expansion hole 323 with a sound attenuation part 324, and a plurality of sound attenuation holes are arranged in the sound attenuation part 324, so that when the rotor core 32 rotates at high speed, the sound attenuation part 324 can reduce or avoid the vibration and noise generated by the airflow passing through the air expansion hole 323, and the effect of reducing noise is achieved.

[0049] The application arranges a plurality of blocking columns 14 on the side of the air inlet hole 12 facing the air supply part 35 for blocking external sundries, and arranges a protective cover 41 on the outer surface of the air supply part 35, and arranges air inlet filter holes 42 on the side of the protective cover 41, so that the external airflow blowing towards the air supply part 35 from the side is reduced, and the windward area of the air supply part 35 is reduced, so as to reduce the wind resistance of the air supply part 35, improve the rotation efficiency of the air supply part 35, and avoid the external airflow directly blowing towards the air inlet hole 12, and the effect of improving the heat dissipation performance while reducing the sundries entering between the generator stator 2 and the rotor core 32 is achieved.

[0050] Therefore, the application effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0051] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the application should be covered by the claims of the application.

Claims

1. A high-efficiency generator for a paver insulation system, characterized in that, It includes a protective mechanism (1), the inner wall of which is provided with a generator stator (2), and the shaft of the generator stator (2) is provided with a rotatable rotor mechanism (3). The protective mechanism (1) includes a generator housing (11), both the left and right sides of the generator housing (11) are closed, the right side of the generator housing (11) is provided with an air inlet (12), and the left side of the generator housing (11) is provided with an air outlet (13). The rotor mechanism (3) includes a transmission shaft (31), which is concentrically arranged with the generator stator (2); the left end of the transmission shaft (31) is supported and rotatably connected by the inner wall of the left end of the generator housing (11); the right end of the transmission shaft (31) passes through the right side of the generator housing (11); the outer surface of the transmission shaft (31) is provided with a rotor core (32), which is located inside the generator stator (2) and is concentrically arranged with the generator stator (2); Two connecting bearings (33) are respectively provided on the outer surface of the two transmission shafts (31) on both sides of the rotor core (32). The connecting bearing (33) located on the right side of the rotor core (32) is located outside the generator housing (11). Several first permanent magnets (34) are provided at equal intervals between the two connecting bearings (33). From right to left, the outer surface of the connecting bearings (33) on both sides is provided with an air supply component (35) and an air exhaust component (36). The air supply component (35) and the air exhaust component (36) are magnetically coupled to the first permanent magnets (34). The right end of the generator housing (11) is provided with a separable filter mechanism (4) to cover the air supply component (35).

2. The high-efficiency generator for the paver insulation system according to claim 1, characterized in that: The air supply component (35) includes a sleeve (351), which is sleeved on the outer surface of two connecting bearings (33). The inner wall of the sleeve (351) is provided with a second permanent magnet (352) that is adapted to the first permanent magnet (34), and the outer surface of the sleeve (351) is provided with a fan blade (353).

3. The high-efficiency generator for the paver insulation system according to claim 2, characterized in that: The exhaust component (36) and the air supply component (35) have the same structure and the same connection method with the connecting bearing (33).

4. The high-efficiency generator for the paver insulation system according to claim 1, characterized in that: The outer surface of the rotor core (32) is provided with several air ducts (321) at equal intervals.

5. The high-efficiency generator for the paver insulation system according to claim 4, characterized in that: The rotor core (32) is provided with a plurality of air guide holes (322) at equal intervals at its ends, and the air guide holes (322) respectively penetrate the left and right ends of the rotor core (32).

6. The high-efficiency generator for the paver insulation system according to claim 5, characterized in that: The air guide hole (322) is provided with a plurality of air expansion holes (323) at equal intervals along the axial direction of the rotor core (32), and the air expansion holes (323) are connected to the air duct (321).

7. The high-efficiency generator for the paver insulation system according to claim 6, characterized in that: All of the ventilation holes (323) are filled with a silencing component (324), and the silencing component (324) is provided with a plurality of interconnected silencing holes.

8. The high-efficiency generator for the paver insulation system according to any one of claims 1-7, characterized in that: The air inlet (12) consists of several equally spaced through holes, and the air inlet (12) is radially distributed.

9. The high-efficiency generator for the paver insulation system according to claim 8, characterized in that: The generator housing (11) has two adjacent through holes on the right side with a barrier post (14), which is a columnar structure.

10. The high-efficiency generator for the paver insulation system according to claim 9, characterized in that: The filtration mechanism (4) includes a protective cover (41), and a plurality of air inlet filter holes (42) are provided at equal intervals on the side of the protective cover (41). The air supply component (35) is located inside the protective cover (41).

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