Rotating shaft offset memory alloy heat engine

Abstract

The invention belongs to the technical field of heat engines, and discloses a rotating shaft offset memory alloy heat engine which comprises a silo, a rotor, an eccentric shaft and a plurality of memory alloy springs. The rotor is arranged in the accommodating groove and is rotationally connected with the silo; the eccentric shaft is arranged in the containing groove, the two ends of the eccentric shaft are connected with the silo, the eccentric shaft is sleeved with multiple sets of connecting pieces, and the multiple sets of connecting pieces are arranged at intervals in the length direction of the eccentric shaft; a plurality of memory alloy springs are circumferentially arranged on the group of connecting sheets at intervals, and two ends of the memory alloy springs are respectively connected with the connecting sheets and the rotor. Thus, the multiple sets of memory alloy springs are arranged on the eccentric shaft, continuous conversion from heat energy to mechanical energy can be achieved when a high-temperature heat medium is borne in the silo, and the energy conversion efficiency and the stability performance of the rotating shaft offset memory alloy heat engine are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat engines, in particular to a shaft-biased memory alloy heat engine. Background Art

[0002] A heat engine is a device that can convert thermal energy into mechanical energy, and a shape memory alloy heat engine is a heat engine that uses the properties of shape memory alloy materials to work.

[0003] Shape memory alloy material is an alloy material with a special crystal structure. It can undergo a reversible phase change when the temperature changes to a certain extent, thus having a shape memory effect. At different temperatures, the mechanical properties of the shape memory alloy material are also different, thereby realizing the conversion of thermal energy into mechanical energy.

[0004] Existing memory alloy heat engines usually include a silo, a rotor and an eccentric shaft. A group of memory alloy springs are circumferentially arranged on the side wall of the eccentric shaft, so that the memory alloy springs can drive the rotor to rotate relative to the silo under temperature changes. However, when the rotor rotates, due to the weak deformation of a single group of memory alloy springs, not only the rotor speed is low, but also discontinuous rotation may occur. There are problems such as low energy conversion efficiency and poor stability performance of the memory alloy heat engine. Summary of the invention

[0005] The object of the present invention is to provide a shaft-biased memory alloy heat engine to solve the problems of low energy conversion efficiency and poor stability performance of the memory alloy heat engine.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A rotating shaft offset memory alloy heat engine comprises: a barrel, the barrel being provided with a receiving groove; a rotor, the rotor being arranged in the receiving groove, the rotor being rotatably connected to the barrel; an eccentric shaft, the eccentric shaft being arranged in the receiving groove, the two ends of the eccentric shaft being connected to the barrel, the eccentric shaft being sleeved with a plurality of groups of connecting plates, the plurality of groups of connecting plates being arranged at intervals along the length direction of the eccentric shaft; a plurality of memory alloy springs, a group of the connecting plates being provided with a plurality of the memory alloy springs being circumferentially spaced apart, the two ends of the memory alloy springs being respectively connected to the connecting plates and the rotor.

[0008] Preferably, the rotor includes a turntable and a fixed guide rail, wherein two turntables are provided and are rotatably connected to the silo respectively, and multiple fixed guide rails are provided and both ends of the fixed guide rails are respectively connected to the two turntables, and the eccentric shaft and the memory alloy spring are both arranged in the space formed by the turntable and the fixed guide rail.

[0009] Preferably, the silo is connected to two mounting bosses, each of the turntables is connected to a connecting bearing, the connecting bearings are arranged in a one-to-one correspondence with the mounting bosses so that the rotor can rotate relative to the mounting bosses, and the two ends of the eccentric shaft are respectively connected to the two mounting bosses.

[0010] Preferably, the memory alloy spring includes a telescopic part and a mounting part, each of the memory alloy springs is provided with one telescopic part and two mounting parts, the two mounting parts are respectively arranged at both ends of the telescopic part, and the two mounting parts are respectively detachably connected to the connecting piece and the fixed guide rail.

[0011] Preferably, a plurality of fixing grooves are provided in the circumferential direction of the side wall of the turntable, and the ends of the fixing guide rails are arranged in the fixing grooves.

[0012] Preferably, the length direction of the fixed guide rail is arranged at an angle to the central axis of the rotor.

[0013] Preferably, the angle β of relative rotation of the fixed grooves corresponding to the two fixed ends of each fixed guide rail around the central axis of the rotor satisfies The memory alloy spring deflection angle α of the adjacent connecting pieces satisfies Wherein, m is the number of memory alloy springs on a single group of the connecting plates, and n is the number of groups of the connecting plates.

[0014] Preferably, the shaft-biased memory alloy heat engine further comprises a circulating water module, the silo is connected with an input pipe and an output pipe, and the circulating water module is connected to both the input pipe and the output pipe.

[0015] Preferably, the circulating water module includes a temperature control unit, and the shaft offset memory alloy heat engine also includes a detection module, the detection module includes a laser tachometer and a data integration and control unit, the laser tachometer is connected to the rotor for detecting the rotational speed of the rotor, and the laser tachometer and the temperature control unit are both communicatively connected to the data integration and control unit.

[0016] Preferably, the shaft-biased memory alloy heat engine further comprises an output module, the output module comprises a pulley and a generator, and the rotor is connected to the generator via the pulley.

[0017] Beneficial effects of the present invention:

[0018] A rotating shaft offset memory alloy heat engine comprises a barrel, a rotor, an eccentric shaft and a plurality of memory alloy springs, wherein the barrel is provided with a receiving groove; the rotor is arranged in the receiving groove, and the rotor is rotatably connected to the barrel; the eccentric shaft is arranged in the receiving groove, and both ends of the eccentric shaft are connected to the barrel, and a plurality of groups of connecting plates are sleeved on the eccentric shaft, and the plurality of groups of connecting plates are arranged at intervals along the length direction of the eccentric shaft; a plurality of memory alloy springs are arranged at intervals in the circumferential direction on a group of connecting plates, and the two ends of the memory alloy spring are respectively connected to the connecting plates and the rotor.

[0019] In this way, multiple groups of memory alloy springs are arranged in parallel on the eccentric shaft, so that when the silo carries high-temperature heat medium, the memory alloy springs can drive the rotor to rotate, thereby realizing continuous conversion of thermal energy to mechanical energy, and improving the energy conversion efficiency and stability of the shaft-biased memory alloy heat engine, avoiding the phenomenon of discontinuous rotor rotation; when one or a group of memory alloy springs breaks or deforms, the remaining memory alloy springs can continue to drive the rotor to rotate, so that the output power and output torque of the shaft-biased memory alloy heat engine are high, and the structure of the shaft-biased memory alloy heat engine is more compact, the redundancy is high, and the application range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial structural schematic diagram of the rotating shaft offset memory alloy heat engine in the first embodiment of the present invention;

[0021] Figure 2 It is a schematic structural diagram of a connecting piece and a memory alloy spring in Embodiment 1 of the present invention;

[0022] Figure 3 is a schematic structural diagram of a rotor in Embodiment 1 of the present invention;

[0023] Figure 4 is a schematic structural diagram of an eccentric shaft in Embodiment 1 of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the silo in the first embodiment of the present invention;

[0025] Figure 6 It is a second partial structural schematic diagram of the rotating shaft offset memory alloy heat engine in the first embodiment of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the rotating shaft offset memory alloy heat engine in the second embodiment of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the rotating shaft offset memory alloy heat engine in the third embodiment of the present invention.

[0028] In the figure:

[0029] 1. Silo; 11. Receiving groove; 12. Mounting boss; 13. Input pipe; 14. Output pipe; 2. Rotor; 21. Turntable; 211. Connecting bearing; 212. Fixing groove; 22. Fixing guide rail; 23. Output shaft; 3. Eccentric shaft; 31. Connecting plate; 311. Connecting screw; 312. Connecting nut; 4. Memory alloy spring; 41. Telescopic part; 42. Mounting part; 5. Circulating water module; 6. Detection module; 61. Laser tachometer; 62. Data integration and control unit; 63. Transmission; 64. Braoni brake; 7. Output module; 71. Pulley; 72. Generator; 73. Hydrothermal source. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] Embodiment 1

[0035] See also Figure 1 and Figure 2 The present invention provides a rotating shaft offset memory alloy heat engine, comprising a silo 1, a rotor 2, an eccentric shaft 3 and a plurality of memory alloy springs 4, the silo 1 is provided with a receiving groove 11; the rotor 2 is arranged in the receiving groove 11, and the rotor 2 is rotatably connected to the silo 1; the eccentric shaft 3 is arranged in the receiving groove 11, and both ends of the eccentric shaft 3 are connected to the silo 1, and a plurality of groups of connecting plates 31 are sleeved on the eccentric shaft 3, and the plurality of groups of connecting plates 31 are arranged at intervals along the length direction of the eccentric shaft 3; a plurality of memory alloy springs 4 are circumferentially spaced on a group of connecting plates 31, and both ends of the memory alloy spring 4 are respectively connected to the connecting plate 31 and the rotor 2.

[0036] In this embodiment, the silo 1 is a semi-cylindrical structure with an open top, and the silo 1 is made of transparent material. The length direction of the accommodating groove 11 is parallel to the length direction of the silo 1; the outer radius of the rotor 2 is 100 mm, the length direction of the rotor 2 is parallel to the length direction of the silo 1, and the rotation axis of the rotor 2 is parallel to the length direction of the silo 1, and the two ends of the rotor 2 are rotatably connected to the two ends of the silo 1; the length direction of the eccentric shaft 3 is parallel to the length direction of the silo 1, and it is eccentrically arranged inside the silo 1, the eccentricity of the eccentric shaft 3 is 30 mm, the two ends of the eccentric shaft 3 are fixedly connected to the silo 1, and the connecting piece 31 is sleeved on the eccentric shaft 3 and rotatably connected to the eccentric shaft 3.

[0037] Furthermore, the connecting plate 31 is a disc structure, and multiple groups of connecting plates 31 are arranged at intervals on the eccentric shaft 3, that is, the memory alloy springs 4 arranged on the multiple groups of connecting plates 31 are arranged at equal intervals; twelve memory alloy springs 4 are arranged at equal intervals circumferentially on one group of connecting plates 31.

[0038] In this way, multiple groups of memory alloy springs 4 are arranged on the eccentric shaft 3. When the silo 1 carries a high-temperature heat medium (such as hot liquid or hot gas), the eccentric shaft 3 can make the resultant force torque of the memory alloy spring 4 deviate from the balance, thereby driving the rotor 2 to rotate. Since the rotor 2 is connected to the end of the memory alloy spring 4 away from the eccentric shaft 3, the rotor 2 can drive the multiple groups of memory alloy springs 4 to continue to rotate when rotating, thereby realizing the continuous conversion of thermal energy to mechanical energy, improving the energy conversion efficiency of the shaft-biased memory alloy heat engine, and enhancing the stability of the shaft-biased memory alloy heat engine, avoiding the phenomenon of discontinuous rotation of the rotor 2; when one or a group of memory alloy springs 4 is deformed or broken, the other memory alloy springs 4 can continue to deform and rotate the rotor 2, so that the shaft-biased memory alloy heat engine has high output power, large output torque, reliable structure, and can be highly integrated, with high redundancy and a wide range of applications.

[0039] It can be understood that the memory alloy spring 4 can be spiral or zigzag, and can make the memory alloy spring 4 undergo a large deformation in its length direction. The memory alloy spring 4 is made of nickel-titanium memory alloy material. The material of the memory alloy spring 4 can also be nickel-based shape memory alloy, iron-based shape memory alloy and other materials with shape memory effect. The specific shape and material of the memory alloy spring 4 can be flexibly adjusted according to actual needs, and can achieve the shape memory effect under temperature changes and drive the rotor 2 to rotate. No more examples are given here; and the number of memory alloy springs 4 on a group of connecting plates 31 and the number of connecting plates 31 groups on an eccentric shaft 3 can be adjusted according to actual needs.

[0040] It should be noted that when the rotor 2 rotates in the clockwise direction, the high-temperature heat medium is below the water level. At this time, the temperature of the memory alloy spring 4 below the water level rises and an austenite transformation occurs, which increases the elastic coefficient of the memory alloy spring 4. The memory alloy spring 4 above the water level is in a relatively low temperature environment, so its elastic coefficient is relatively small. The tensile force of the memory alloy springs 4 above and below the water level exerts a clockwise force torque on the rotation axis of the rotor 2, causing each memory alloy spring 4 to start rotating clockwise. During the rotation, the memory alloy spring 4 entering the high-temperature heat medium undergoes an austenite transformation, and the phase change stress increases the elastic coefficient of the memory alloy spring 4. The memory alloy spring 4 leaving the high-temperature heat medium undergoes a martensite transformation through air cooling, and the elastic coefficient decreases, so that the overall combined force state of the connecting piece 31 remains unchanged, thereby achieving continuous clockwise rotation of the rotor 2.

[0041] See also Figures 1 to 4 In some embodiments, the rotor 2 includes a turntable 21 and a fixed guide rail 22. Two turntables 21 are provided, and the two turntables 21 are rotatably connected to the silo 1 respectively. Multiple fixed guide rails 22 are provided, and both ends of the fixed guide rails 22 are respectively connected to the two turntables 21. The eccentric shaft 3 and the memory alloy spring 4 are both arranged in the space formed by the turntable 21 and the fixed guide rail 22.

[0042] In this embodiment, the high-temperature heat medium is hot water, and the water level of the hot water is flush with the axis of the turntable 21 (that is, the distance between the water level and the axis of the turntable 21 is 0). There are 12 fixed guide rails 22, that is, each memory alloy spring 4 on the same group of connecting plates 31 is connected to each fixed guide rail 22 at one end away from the connecting plate 31, and both ends of each fixed guide rail 22 are detachably connected to the two turntables 21 by bolts, and the diameter of the turntable 21 is smaller than the diameter of the silo 1.

[0043] In this way, the fixed guide rail 22 and the connecting plate 31 can limit the position of the memory alloy spring 4, so that the memory alloy spring 4 on each group of connecting plates 31 can be radially connected to the rotor 2, thereby realizing stable and continuous rotation of the rotor 2, and improving the energy conversion efficiency and stability performance of the shaft-biased memory alloy heat engine.

[0044] It is understandable that the water level of the hot water can be higher or lower than the axis of the turntable 21, but cannot cover the entire rotor 2. In this embodiment, when the water level is flush with the axis of the turntable 21, the power of the shaft offset memory alloy heat engine is the highest. The number of fixed guide rails 22 and the connection method with the turntable 21 can be flexibly adjusted, which will not be described in detail here.

[0045] See also Figures 3 to 5 In some embodiments, the silo 1 is connected to two mounting bosses 12, each turntable 21 is connected to a corresponding connecting bearing 211, and the connecting bearings 211 are arranged in a one-to-one correspondence with the mounting bosses 12 so that the rotor 2 can rotate relative to the mounting bosses 12, and the two ends of the eccentric shaft 3 are respectively connected to the two mounting bosses 12.

[0046] Among them, two mounting bosses 12 are arranged on the two end walls of the accommodating groove 11. The mounting bosses 12 are cylindrical structures. The two turntables 21 are rotationally connected to the mounting bosses 12 through corresponding connecting bearings 211 respectively, and the two ends of the eccentric shaft 3 are fixedly connected to the mounting bosses 12.

[0047] In this way, the mounting boss 12 can stably support the rotor 2 and enable the rotor 2 to rotate smoothly and continuously. Compared with connecting the rotor 2 and the silo 1 through a rotating shaft, the mounting boss 12 can make the structure of the shaft-biased memory alloy heat engine more compact, and at the same time avoid motion interference between the rotor 2 and the memory alloy spring 4 when the rotor 2 rotates, thereby improving the stability of the shaft-biased memory alloy heat engine.

[0048] It can be understood that the connection method between the mounting boss 12 and the turntable 21 can be flexibly adjusted. In this embodiment, the mounting boss 12 and the turntable 21 are connected by connecting the bearing 211 in order to reduce the resistance during the rotation of the turntable 21 and improve the energy conversion efficiency of the shaft offset memory alloy heat engine.

[0049] See also Figure 1 and Figure 2 In some embodiments, the memory alloy spring 4 includes a telescopic portion 41 and a mounting portion 42. Each memory alloy spring 4 is provided with a telescopic portion 41 and two mounting portions 42. The two mounting portions 42 are respectively provided at both ends of the telescopic portion 41. The two mounting portions 42 are respectively detachably connected to the connecting piece 31 and the fixed guide rail 22.

[0050] In this embodiment, the connecting plate 31 is connected with a connecting screw 311 and a connecting nut 312. A group of connecting plates 31 includes two connecting plates 31. The connecting screw 311 and the connecting nut 312 can enable the two connecting plates 31 to compress and fix one of the mounting portions 42 of the memory alloy spring 4, so that the relative position of the memory alloy spring 4 and the connecting plate 31 is fixed. The other mounting portion 42 of the memory alloy spring 4 is arranged toward the fixed guide rail 22. The fixed guide rail 22 is connected with a connecting piece (not shown in the figure), and the connecting piece is connected to the mounting portion 42 to connect the memory alloy spring 4 to the fixed guide rail 22.

[0051] It can be understood that the connecting parts can be structures such as rivets, bolts, sliders, etc., and the types of connecting parts can be flexibly adjusted according to actual needs. A groove for accommodating the connecting parts can be provided on the fixed guide rail 22 (not shown in the figure) to achieve the limitation of the memory alloy spring 4, which is not limited in this embodiment.

[0052] See also Figure 1 In some embodiments, a plurality of fixing grooves 212 are circumferentially formed on the side wall of the turntable 21, and the ends of the fixed guide rails 22 are arranged in the fixing grooves 212, that is, each fixed guide rail 22 includes two fixed ends (not shown in the figure), and the two fixed ends are respectively arranged at both ends of the fixed guide rail 22, and the two fixed ends are respectively arranged in the fixing grooves 212 of the two turntables 21, and the bolts pass through the fixing grooves 212 and connect the fixed guide rails 22 and the turntable 21.

[0053] In this way, when one or a group of memory alloy springs 4 breaks or deforms, the memory alloy spring 4 can be quickly replaced by removing the corresponding fixed guide rail 22, thereby improving the stability of the shaft offset memory alloy heat engine and maintaining the energy conversion efficiency stable.

[0054] See also Figure 3 In some embodiments, the length direction of the fixed guide rail 22 is set at an angle to the central axis of the rotor 2, that is, the fixed guide rail 22 is deflected and set on the turntable 21.

[0055] In this way, when the rotor 2 rotates, since the number of springs entering the high-temperature heat medium from the air is unevenly distributed in time, the resultant torque will change dramatically and cause uneven rotation speed. The fixed guide rail 22 is deflected and set to make the memory alloy spring 4 evenly distributed within the circumference, so that the number of memory alloy springs 4 in each state at all times remains unchanged, thereby achieving the goal of the shaft-biased memory alloy heat engine to maintain uniform and stable operation even when under load, thereby extending the service life of the shaft-biased memory alloy heat engine and improving the stability performance and energy conversion efficiency of the shaft-biased memory alloy heat engine.

[0056] It is understandable that the length direction of the fixed guide rail 22 can also be parallel to the central axis of the rotor 2, and the angle between the length direction of the fixed guide rail 22 and the central axis of the rotor 2 can be flexibly adjusted according to actual design requirements and the performance of the memory alloy spring 4, which will not be listed in detail here.

[0057] See also Figures 1 to 3 In some embodiments, the angle β of the relative rotation of the fixed grooves 212 corresponding to the two fixed ends of each fixed guide rail 22 around the central axis of the rotor 2 satisfies The deflection angle α of the memory alloy spring 4 of the adjacent connecting piece 31 satisfies Wherein, m is the number of memory alloy springs 4 on a single group of connecting plates 31, and n is the number of groups of connecting plates 31. In this embodiment, the deflection angle α of the memory alloy springs 4 of adjacent connecting plates 31 is 1.875°, and the angle of relative rotation of the fixing grooves 212 corresponding to the two fixed ends of each fixing rail 22 around the central axis of the rotor 2 (that is, the deflection angle of the fixing rail 22) β is 30°.

[0058] Further, in some embodiments, the length L1 of the rotor 2 satisfies L1=n(d1+1)+2d2, wherein n is the number of groups of connecting plates 31, d1 is the thickness of the connecting plates 31, and d2 is the thickness of the turntable 21. Exemplarily, the number of groups n of the connecting plates 31 is 16, the thickness d1 of the connecting plates 31 is 14 mm, and the thickness d2 of the turntable 21 is 16 mm. Therefore, the length L1 of the rotor 2 is 272 mm.

[0059] In other embodiments, the length L2 of the fixed guide rail 22 satisfies Wherein, R is the radius of the rotor 2. For example, the radius R of the rotor 2 is 100 mm. Therefore, it can be obtained that the length L2 of the fixed guide rail 22 is approximately 275.02 mm.

[0060] See also Figure 6 In some embodiments, the shaft-biased memory alloy heat engine further includes a circulating water module 5, the silo 1 is connected with an input pipe 13 and an output pipe 14, and the circulating water module 5 is connected with both the input pipe 13 and the output pipe 14. In this embodiment, the input pipe 13 and the output pipe 14 are respectively arranged at both ends of the silo 1.

[0061] In this way, the circulating water module 5 can regulate the temperature of the heat medium inside the silo 1 by circulating the heat medium and keep the temperature of the heat medium inside the silo 1 constant.

[0062] It is understandable that the input pipe 13 can also be used to connect with the heat medium storing waste heat, so that the heat medium converts the waste heat into mechanical energy after entering the silo 1, and the cooled heat medium is transported to the outside through the output pipe 14.

[0063] Embodiment 2

[0064] See also Figure 7 , which is different from the first embodiment, is that, in some embodiments, the circulating water module 5 includes a temperature control unit (not shown in the figure), and the shaft offset memory alloy heat engine also includes a detection module 6, the detection module 6 includes a laser tachometer 61 and a data integration and control unit 62, the laser tachometer 61 is connected to the rotor 2 for detecting the rotation speed of the rotor 2, and the laser tachometer 61 and the temperature control unit are both communicatively connected to the data integration and control unit 62.

[0065] Among them, continue to refer to Figure 7 The detection module 6 also includes a transmission 63 and a Braoni brake 64. One end of the rotor 2 is fixedly connected to the output shaft 23, and the end of the output shaft 23 away from the rotor 2 is connected to the transmission 63. The output end of the transmission 63 is connected to the Braoni brake 64, and the data integration and control unit 62 is communicatively connected to the Braoni brake 64.

[0066] It should be noted that the temperature control module is turned on to heat the heat medium in the circulating water module 5, so that the heated heat medium enters the silo 1 and drives the rotor 2 to rotate under the action of the memory alloy spring 4. After the temperature of the heat medium in the silo 1 stabilizes to the set temperature, the rotor 2 rotates at a stable speed, and the laser tachometer 61 is turned on to obtain the speed of the rotor 2 through the laser beam; by adjusting the Brauni brake 64, the resistance torque can be gradually increased, and a constant torque can be applied to the rotor 2 through the transmission 63 and the output shaft 23. The output power coordinate points of the shaft-biased memory alloy heat engine with respect to temperature, speed, and resistance torque can be obtained through the data integration and control module.

[0067] In this way, by detecting and debugging the shaft-biased memory alloy heat engine through the detection module 6, the shaft-biased memory alloy heat engine can be easily adjusted to maximize its output power and improve the energy conversion efficiency of the shaft-biased memory alloy heat engine.

[0068] Embodiment 3

[0069] See also Figure 8 , which is different from the first embodiment, in some embodiments, the shaft-biased memory alloy heat engine further includes an output module 7, the output module 7 includes a pulley 71 and a generator 72, and the rotor 2 is connected to the generator 72 via the pulley 71. The output module 7 further includes a hot liquid source 73, and the hot liquid source 73 is connected to the input pipe 13.

[0070] In this way, by inputting high-temperature heat medium into the silo 1, the shaft-biased memory alloy heat engine can convert thermal energy into mechanical energy, and then convert it into electrical energy through the generator 72, thereby realizing waste heat utilization and improving the energy conversion efficiency of the shaft-biased memory alloy heat engine.

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A shaft-biased memory alloy heat engine, characterized in that: include: A silo (1), wherein the silo (1) is provided with a receiving groove (11); A rotor (2), the rotor (2) being disposed in the containing groove (11), the rotor (2) being rotatably connected to the silo (1); An eccentric shaft (3), the eccentric shaft (3) being arranged in the containing groove (11), the two ends of the eccentric shaft (3) being connected to the silo (1), the eccentric shaft (3) being sleeved with a plurality of groups of connecting plates (31), the plurality of groups of connecting plates (31) being arranged at intervals along the length direction of the eccentric shaft (3); A plurality of memory alloy springs (4) are provided on a group of the connection plates (31) at intervals in the circumferential direction, and two ends of the memory alloy springs (4) are respectively connected to the connection plates (31) and the rotor (2).

2. The shaft-biased memory alloy heat engine according to claim 1, characterized in that: The rotor (2) comprises a rotating disk (21) and a fixed guide rail (22). Two rotating disks (21) are provided. The two rotating disks (21) are respectively rotatably connected to the silo (1). A plurality of fixed guide rails (22) are provided. Both ends of the fixed guide rail (22) are respectively connected to the two rotating disks (21). The eccentric shaft (3) and the memory alloy spring (4) are both arranged in a space formed by the rotating disk (21) and the fixed guide rail (22).

3. The shaft-biased memory alloy heat engine according to claim 2, characterized in that: The silo (1) is connected to two mounting bosses (12), each of the turntables (21) is correspondingly connected to a connecting bearing (211), and the connecting bearings (211) are arranged in a one-to-one correspondence with the mounting bosses (12) so that the rotor (2) can rotate relative to the mounting bosses (12), and the two ends of the eccentric shaft (3) are respectively connected to the two mounting bosses (12).

4. The shaft-biased memory alloy heat engine according to claim 2, characterized in that: The memory alloy spring (4) comprises a telescopic portion (41) and a mounting portion (42), each of the memory alloy springs (4) being provided with one telescopic portion (41) and two mounting portions (42), the two mounting portions (42) being respectively arranged at two ends of the telescopic portion (41), and the two mounting portions (42) being respectively detachably connected to the connecting piece (31) and the fixed guide rail (22).

5. The shaft-biased memory alloy heat engine according to claim 2, characterized in that: A plurality of fixing grooves (212) are provided in the circumferential direction of the side wall of the rotating disk (21), and the ends of the fixing guide rails (22) are arranged in the fixing grooves (212).

6. The shaft-biased memory alloy heat engine according to claim 5, characterized in that: The length direction of the fixed guide rail (22) is arranged at an angle to the central axis of the rotor (2).

7. The shaft-biased memory alloy heat engine according to claim 6, characterized in that: The angle β of relative rotation of the fixing grooves (212) corresponding to the two fixing ends of each fixing guide rail (22) around the central axis of the rotor (2) satisfies The deflection angle α of the memory alloy spring (4) adjacent to the connecting piece (31) satisfies Wherein, m is the number of memory alloy springs (4) on a single group of connecting plates (31), and n is the number of groups of connecting plates (31).

8. The shaft-biased memory alloy heat engine according to any one of claims 1 to 7, characterized in that: The shaft-biased memory alloy heat engine also includes a circulating water module (5); the silo (1) is connected to an input pipe (13) and an output pipe (14); and the circulating water module (5) is connected to both the input pipe (13) and the output pipe (14).

9. The shaft-biased memory alloy heat engine according to claim 8, characterized in that: The circulating water module (5) comprises a temperature control unit, and the shaft-biased memory alloy heat engine further comprises a detection module (6), wherein the detection module (6) comprises a laser tachometer (61) and a data integration and control unit (62), wherein the laser tachometer (61) is connected to the rotor (2) and is used to detect the rotation speed of the rotor (2), and the laser tachometer (61) and the temperature control unit are both communicatively connected to the data integration and control unit (62).

10. The shaft-biased memory alloy heat engine according to any one of claims 1 to 7, characterized in that: The shaft-biased memory alloy heat engine also includes an output module (7), the output module (7) includes a pulley (71) and a generator (72), and the rotor (2) is connected to the generator (72) via the pulley (71).

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