CN113487959A - Teaching aid model of engine thermal management system - Google Patents
Teaching aid model of engine thermal management system Download PDFInfo
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- CN113487959A CN113487959A CN202110865380.5A CN202110865380A CN113487959A CN 113487959 A CN113487959 A CN 113487959A CN 202110865380 A CN202110865380 A CN 202110865380A CN 113487959 A CN113487959 A CN 113487959A
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- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
The invention discloses a teaching aid model of an engine heat management system, which comprises a rectangular display stand and an engine model, wherein the engine model is installed on the upper surface of the rectangular display stand, the upper surface of the rectangular display stand is provided with a heat flow demonstration mechanism, one side of the heat flow demonstration mechanism is provided with a water flow driving mechanism, and one side of the engine model is provided with a heat dissipation linkage mechanism. The invention has the advantages that the heat dissipation linkage mechanism is matched with the water flow driving mechanism to work, so that the flow direction and the principle of the heat of the engine can be visually shown to a student, the change of the rotating speed of the heat dissipation fan blades and the rotating speed of the warm air fan under different working conditions can be simulated, and the teaching quality is improved.
Description
Technical Field
The invention relates to the technical field of application of engine thermal management systems, in particular to a teaching aid model of an engine thermal management system.
Background
At present, most of automobile maintenance training mechanisms adopt a whole automobile or an original automobile disassembly part as teaching demonstration equipment, the existing engine heat management teaching aid is simple in structure, only the original automobile part is assembled, a corresponding pipeline is added to simulate an engine heat management system, and then the teaching is explained by a teacher; although the structure of each part can be seen clearly, the function of the system is limited, and many working conditions need imagination of a student, and dynamic changes of actual working conditions cannot be simulated, so that the student cannot intuitively understand the working principle of each system, and the teaching effect is poor (for example, how heat is diffused when warm air is turned on).
Disclosure of Invention
Aiming at the defects, the invention provides a teaching aid model of an engine thermal management system, and solves the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a teaching aid model of an engine thermal management system comprises a rectangular display stand and an engine model, wherein the engine model is installed on the upper surface of the rectangular display stand, a heat flow demonstration mechanism is arranged on the upper surface of the rectangular display stand, a water flow driving mechanism is arranged on one side of the heat flow demonstration mechanism, and a heat dissipation linkage mechanism is arranged on one side of the engine model;
the heat dissipation linkage mechanism comprises a first vertical bearing arranged on the upper surface of the rectangular display platform, two pairs of first vertical bearings are arranged, a transmission shaft is arranged on the inner ring of the first vertical bearing, two transmission shafts are arranged, a first friction wheel is arranged at one end of the transmission shaft, a second vertical bearing is arranged on one side of the first vertical bearing, the second vertical bearing is fixedly connected with the rectangular display platform, a rotating shaft is arranged on the inner ring of the second vertical bearing, two ends of the rotating shaft are provided with first limiting grooves, two ends of the rotating shaft are provided with second friction wheels, the second friction wheels correspond to the first friction wheels in position, the second friction wheels are connected with the first limiting grooves in a sliding manner, a first tension spring is arranged between the rotating shaft and the second friction wheels, a driven wheel is arranged in the center of the rotating shaft, a rotating motor is arranged on one side of the driven wheel, the rotating motor is fixedly connected with the rectangular display platform, a driving wheel meshed with the driven wheel is arranged at the rotating end of the rotating motor, and a first hydraulic rod is arranged on one side of the second friction wheel, the first hydraulic rod is fixedly connected with the rectangular display stand, a first shifting fork is mounted at the telescopic end of the first hydraulic rod, and the first shifting fork corresponds to the second friction wheel in position; the device comprises a transmission shaft, a key strip, a first conical gear, a first ball bearing, a first linear motor, a connecting plate, a linear motor, a third vertical bearing, a pin shaft, a second conical gear meshed with the first conical gear, and a first belt pulley, wherein one end of the transmission shaft is provided with the key strip, one side of the key strip is provided with the first conical gear, the first conical gear is connected with the key strip in a sliding manner, one end of the first conical gear is provided with the first ball bearing, an inner ring of the first ball bearing is fixedly connected with the first conical gear, an outer ring of the first ball bearing is provided with the connecting plate, the upper surface of a rectangular display stand is provided with the linear motor, the telescopic end of the linear motor is fixedly connected with the connecting plate, the upper surface of the rectangular display stand is provided with a trapezoidal groove, one end of the sliding block is provided with a sliding block, a compression spring is arranged between the trapezoidal groove and the sliding block, the upper surface of the sliding block is provided with the third vertical bearing, an inner ring is provided with the pin shaft, the center of the second conical gear meshed with the first belt pulley;
the heat dissipation linkage mechanism further comprises a vertical bearing IV arranged on the upper surface of the rectangular display table, wherein a v-shaped rod 21274is arranged on the inner ring of the vertical bearing IV, a compression roller 21274is arranged at one end of the v-shaped rod, and a torsion spring is arranged between the v-shaped rod and the rectangular display table; the upper surface of the rectangular display table is provided with a warm air fan, a key groove is formed in the power input end of the warm air fan, a first friction plate is mounted at the power input end of the warm air fan and is in sliding connection with the key groove, a second extension spring is mounted between the first friction plate and the power input end of the warm air fan, one side of the warm air fan is provided with a second hydraulic rod, a second shifting fork is mounted at the telescopic end of the second hydraulic rod, the second shifting fork corresponds to the first friction plate in position, an L-shaped support rod is arranged at one side of the warm air fan, and the L-shaped support rod is fixedly connected with the rectangular display table; the rectangular display table is provided with a vertical bearing V on the upper surface, a connecting shaft is arranged in the vertical bearing V, a radiating fan blade is arranged at one end of the connecting shaft, a belt pulley II is respectively arranged at one end of the connecting shaft and one end of an L-shaped supporting rod, a transmission belt is arranged between the belt pulley II and the belt pulley I, a compression roller is connected with the transmission belt in a sliding mode, and rubber pads are arranged on the surfaces of two sides of the belt pulley.
Furthermore, the heat flow demonstration mechanism comprises a cooling liquid kettle arranged on the upper surface of the rectangular display platform, a main radiator is arranged on one side of the engine model, a warm air radiator is arranged on the other side of the engine model, a ring pipe is arranged on the side surface of the engine model, a first water inlet pipe is arranged between the ring pipe and the cooling liquid kettle, a first water outlet pipe is arranged between the ring pipe and the cooling liquid kettle, a first water return pipe is arranged between the first water inlet pipe and the main radiator, a second water return pipe is arranged between the ring pipe and the main radiator, a first connecting pipe is arranged between the warm air radiator and the main radiator, and a second connecting pipe is arranged between the warm air radiator and the ring pipe; electromagnetic valves are arranged on one sides of the water outlet pipe I, the water return pipe I and the connecting pipe II; horizontal bearings are arranged on two sides of the annular pipe, the water inlet pipe I, the water outlet pipe I, the water return pipe II, the connecting pipe I and the connecting pipe II, rotating wheels are arranged on inner rings of the horizontal bearings, and reflecting pieces are arranged on the side surfaces of the rotating wheels.
Further, rivers actuating mechanism is including installing at the annular duct, the connecting pipe one, the sealed bearing of two both sides of wet return, the rotating tube is installed to the sealed bearing inner circle, the rotating tube is equipped with threely, the driving turbofan is installed to the rotating tube side surface, surface mounting has the biax motor on the rectangle show stand, biax motor one end and rotating tube fixed connection, the biax motor other end passes the rotating tube, the biax motor output is opened there is the rectangular channel, wear pad one is installed to the biax motor output, wear pad one and rectangular channel sliding connection, install extension spring three between wear pad one and the rectangular channel, wear pad two is installed to rotating tube one end, wear pad one side surface mounting has the permanent magnet, permanent magnet one side is equipped with the electro-magnet, electro-magnet and rectangle show stand fixed connection.
Furthermore, LED lamp belts are arranged on the surfaces of the two sides of the annular pipe, the first water inlet pipe, the first water outlet pipe, the first water return pipe, the second water return pipe, the first connecting pipe and the second connecting pipe.
Further, the rotating wheel is provided with a plurality of rotating wheels.
Furthermore, a temperature sensor is arranged on the upper surface of the rectangular display table, and a temperature display is installed on one side of the temperature sensor.
The invention has the beneficial effects that: through the effect of heat dissipation link gear cooperation rivers actuating mechanism work, can audio-visually demonstrate engine thermal flow direction and principle to the student, can also simulate the rotational speed of heat dissipation flabellum, warm braw fan under the different operating modes simultaneously, improve the teaching quality.
Drawings
FIG. 1 is a schematic diagram of a teaching aid model of an engine thermal management system according to the present invention;
FIG. 2 is a schematic view of a heat dissipation linkage;
FIG. 3 is an enlarged view of the heat dissipating fan blade;
FIG. 4 is a partial schematic view of the water flow drive mechanism;
FIG. 5 is a partial schematic view of an annular tube;
FIG. 6 is an enlarged schematic view of a first friction plate;
FIG. 7 is a schematic view of a press roll;
FIG. 8 is a schematic cross-sectional view of the second connecting tube;
FIG. 9 is a cross-sectional schematic view of a drive shaft;
FIG. 10 is a schematic cross-sectional view of a rotating shaft;
FIG. 11 is an enlarged schematic view of the second friction wheel;
in the figure, 1, a rectangular display stand; 2. an engine model; 3. a first vertical bearing; 4. a drive shaft; 5. a first friction wheel; 6. a second vertical bearing; 7. a rotating shaft; 8. a first limiting groove; 9. a second friction wheel; 10. a first extension spring; 11. a driven wheel; 12. a rotating electric machine; 13. a driving wheel; 14. a first hydraulic rod; 15. a first shifting fork; 16. a key bar; 17. a first conical gear; 18. a first ball bearing; 19. a connecting plate; 20. a linear motor; 21. a trapezoidal groove; 22. a slider; 23. a compression spring; 24. a vertical bearing III; 25. a pin shaft; 26. a second bevel gear; 27. a first belt pulley; 28. a vertical bearing IV; 29. \ 21274; 30. a compression roller; 31. a torsion spring; 32. a warm air blower; 33. a keyway; 34. a first friction plate; 35. a second extension spring; 36. a second hydraulic rod; 37. a second shifting fork; 38. an L-shaped support bar; 39. a fifth vertical bearing; 40. a connecting shaft; 41. a heat dissipation fan blade; 42. a second belt pulley; 43. a transmission belt; 44. a cooling liquid kettle; 45. a main heat radiator; 46. a warm air radiator; 47. an annular tube; 48. a first water inlet pipe; 49. a first water outlet pipe; 50. a water return pipe I; 51. a water return pipe II; 52. a first connecting pipe; 53. a second connecting pipe; 54. an electromagnetic valve; 55. a horizontal bearing; 56. a rotating wheel; 57. a light-reflecting sheet; 58. sealing the bearing; 59. rotating the tube; 60. driving a turbofan; 61. a double-shaft motor; 62. a rectangular groove; 63. a first wear-resistant plate; 64. a third extension spring; 65. a second wear-resistant plate; 66. a permanent magnet; 67. an electromagnet; 68. an LED light strip; 69. and (7) a rubber pad.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, and as shown in fig. 1-11, the teaching aid model of the engine thermal management system comprises a rectangular display stand 1 and an engine model 2, wherein the engine model 2 is installed on the upper surface of the rectangular display stand 1, the upper surface of the rectangular display stand 1 is provided with a heat flow demonstration mechanism, one side of the heat flow demonstration mechanism is provided with a water flow driving mechanism, and one side of the engine model 2 is provided with a heat dissipation linkage mechanism;
the heat dissipation linkage mechanism comprises a first vertical bearing 3 arranged on the upper surface of a rectangular display table 1, two pairs of first vertical bearings 3 are arranged, a transmission shaft 4 is arranged on the inner ring of the first vertical bearing 3, two transmission shafts 4 are arranged on the transmission shaft 4, a first friction wheel 5 is arranged at one end of the transmission shaft 4, a second vertical bearing 6 is arranged on one side of the first vertical bearing 3, the second vertical bearing 6 is fixedly connected with the rectangular display table 1, a rotating shaft 7 is arranged on the inner ring of the second vertical bearing 6, limiting grooves 8 are formed in two ends of the rotating shaft 7, a second friction wheel 9 is arranged at two ends of the rotating shaft 7, the second friction wheel 9 corresponds to the first friction wheel 5 in position, the second friction wheel 9 is in sliding connection with the first limiting grooves 8, a first extension spring 10 is arranged between the rotating shaft 7 and the second friction wheel 9, a driven wheel 11 is arranged in the center of the rotating shaft 7, a rotating motor 12 is arranged on one side of the driven wheel 11, and the rotating motor 12 is fixedly connected with the rectangular display table 1, a driving wheel 13 which is meshed with the driven wheel 11 is installed at the rotating end of the rotating motor 12, a first hydraulic rod 14 is arranged on one side of the second friction wheel 9, the first hydraulic rod 14 is fixedly connected with the rectangular display stand 1, a first shifting fork 15 is installed at the telescopic end of the first hydraulic rod 14, and the first shifting fork 15 corresponds to the second friction wheel 9 in position; a key strip 16 is arranged at one end of the transmission shaft 4, a first conical gear 17 is arranged at one side of the key strip 16, the first conical gear 17 is connected with the key strip 16 in a sliding manner, a first ball bearing 18 is arranged at one end of the first conical gear 17, an inner ring of the first ball bearing 18 is fixedly connected with the first conical gear 17, a connecting plate 19 is arranged at an outer ring of the first ball bearing 18, a linear motor 20 is arranged on the upper surface of the rectangular display table 1, a telescopic end of the linear motor 20 is fixedly connected with the connecting plate 19, a trapezoidal groove 21 is formed in the upper surface of the rectangular display table 1, a sliding block 22 is arranged at one end of the trapezoidal groove 21, the sliding block 22 is connected with the trapezoidal groove 21 in a sliding manner, a compression spring 23 is arranged between the trapezoidal groove 21 and the sliding block 22, a third vertical bearing 24 is arranged on the upper surface of the sliding block 22, a pin shaft 25 is arranged at the inner ring of the third vertical bearing 24, and a second conical gear 26 which is meshed with the first conical gear 17 is arranged at the center of the pin shaft 25, one end of the pin shaft 25 is provided with a belt pulley I27;
the heat dissipation linkage mechanism further comprises a vertical bearing four 28 arranged on the upper surface of the rectangular display platform 1, wherein a v-21274is arranged on the inner ring of the vertical bearing four 28, a shape rod 29 and a v-21274are arranged at one end of the shape rod 29, a compression roller 30 and a v-21274are arranged at one end of the shape rod 29, and a torsion spring 31 is arranged between the shape rod 29 and the rectangular display platform 1; the upper surface of the rectangular display platform 1 is provided with a warm air fan 32, a key groove 33 is formed in the power input end of the warm air fan 32, a first friction plate 34 is installed at the power input end of the warm air fan 32, the first friction plate 34 is connected with the key groove 33 in a sliding mode, a second extension spring 35 is installed between the first friction plate 34 and the power input end of the warm air fan 32, one side of the warm air fan 32 is provided with a second hydraulic rod 36, the telescopic end of the second hydraulic rod 36 is provided with a second shifting fork 37, the second shifting fork 37 corresponds to the first friction plate 34 in position, one side of the warm air fan 32 is provided with an L-shaped support rod 38, and the L-shaped support rod 38 is fixedly connected with the rectangular display platform 1; the upper surface of the rectangular display stand 1 is provided with a vertical bearing five 39, the inner ring of the vertical bearing five 39 is provided with a connecting shaft 40, one end of the connecting shaft 40 is provided with a radiating fan blade 41, one end of the connecting shaft 40 and one end of the L-shaped supporting rod 38 are respectively provided with a belt pulley two 42, a transmission belt 43 is arranged between the belt pulley two 42 and the belt pulley one 27, the compression roller 30 is in sliding connection with the transmission belt 43, and the side surface of the belt pulley two 42 is provided with a rubber pad 69.
The heat flow demonstration mechanism comprises a cooling liquid kettle 44 installed on the upper surface of the rectangular display platform 1, a main radiator 45 is arranged on one side of the engine model 2, a warm air radiator 46 is arranged on the other side of the engine model 2, a ring pipe 47 is installed on the side surface of the engine model 2, a first water inlet pipe 48 is installed between the ring pipe 47 and the cooling liquid kettle 44, a first water outlet pipe 49 is installed between the ring pipe 47 and the cooling liquid kettle 44, a first water return pipe 50 is installed between the first water inlet pipe 48 and the main radiator 45, a second water return pipe 51 is installed between the ring pipe 47 and the main radiator 45, a first connecting pipe 52 is installed between the warm air radiator 46 and the main radiator 45, and a second connecting pipe 53 is installed between the warm air radiator 46 and the ring pipe 47; an electromagnetic valve 54 is arranged on one side of the water outlet pipe I49, the water return pipe I50 and the connecting pipe II 53; horizontal bearings 55 are arranged on two sides of the annular pipe 47, the water inlet pipe I48, the water outlet pipe I49, the water return pipe I50, the water return pipe II 51, the connecting pipe I52 and the connecting pipe II 53, rotating wheels 56 are arranged on inner rings of the horizontal bearings 55, and light reflecting sheets 57 are arranged on the side surfaces of the rotating wheels 56.
The water flow driving mechanism comprises sealing bearings 58 arranged on two sides of a ring-shaped pipe 47, a first connecting pipe 52 and a second return pipe 51, rotating pipes 59 are arranged on inner rings of the sealing bearings 58, the rotating pipes 59 are three, driving fans 60 are arranged on the side surfaces of the rotating pipes 59, a double-shaft motor 61 is arranged on the upper surface of the rectangular display platform 1, one end of the double-shaft motor 61 is fixedly connected with the rotating pipes 59, the other end of the double-shaft motor 61 penetrates through the rotating pipes 59, a rectangular groove 62 is formed in the output end of the double-shaft motor 61, a first wear-resisting sheet 63 is arranged at the output end of the double-shaft motor 61, the first wear-resisting sheet 63 is slidably connected with the rectangular groove 62, a third extension spring 64 is arranged between the first wear-resisting sheet 63 and the rectangular groove 62, a second wear-resisting sheet 65 is arranged at one end of the rotating pipes 59, a permanent magnet 66 is arranged on the side surface of the first wear-resisting sheet 63, an electromagnet 67 is arranged on one side of the permanent magnet 66, and the electromagnet 67 is fixedly connected with the rectangular display platform 1.
LED lamp strips 68 are arranged on the side surfaces of the annular pipe 47, the first water inlet pipe 48, the first water outlet pipe 49, the first water return pipe 50, the second water return pipe 51, the first connecting pipe 52 and the second connecting pipe 53.
The rotary wheel 56 is provided in plurality.
In the embodiment, the electrical appliance of the device is controlled by an external controller, the device can simulate the cold start of an engine, normal heat dissipation and heat flow when hot air ventilation is turned on, and the LED lamp strip 68 can emit blue, orange and red colors and can gradually change, so that a student can observe the color conveniently; when the engine is cold started, the temperature of the engine is low, the cooling liquid does not need to be radiated through the main radiator 45, at this time, all the LED lamp strips 68 are in a blue state, along with the extension of the time after the engine is started, the LED lamp strips 68 around the annular tube 47 gradually change from blue to orange, the LED lamp strips 68 are lighted to mark the starting of the engine, when the LED lamp strips 68 are lighted, the controller controls the double-shaft motor 61 to rotate, the rotation of the double-shaft motor 61 directly drives the rotating tube 59 at the rightmost end to rotate, the rotating tube 59 drives the corresponding driving turbofan 60 to rotate, the cooling liquid in the annular tube 47 is driven to flow, at this time, the electromagnetic valve 54 on the water outlet tube one 49 is in an open state, the electromagnetic valves 54 at other positions are in a closed state, and the cooling liquid in the annular pipe 47 can flow back to the cooling liquid kettle 44 through the first water inlet pipe 48, the annular pipe 47 and the first water outlet pipe 49 to form circulation; along with the work of the engine, the temperature of the cooling liquid gradually rises, the LED lamp strip 68 around the annular tube 47 gradually turns red, and heat dissipation needs to be carried out by means of the main heat radiator 45;
the controller firstly controls the electromagnetic valve 54 on one side of the first water return pipe 50 to be opened, as shown in fig. 4, the controller controls the electromagnet 67 on the right side to be electrified, the electromagnet 67 generates a magnetic field to push the permanent magnet 66 to move towards the left side until the permanent magnet 66 is tightly attached to the second wear-resistant sheet 65 to drive the rotating pipe 59 on one side of the second water return pipe 51 to rotate, the rotating pipe 59 drives the corresponding driving turbofan 60 to rotate and simultaneously drives the cooling liquid in the second water return pipe 51 to flow, at the moment, the cooling liquid enters the annular pipe 47 through the first water inlet pipe 48 and flows back to the first water inlet pipe 48 through the second water return pipe 51, the main radiator 45 and the first water return pipe 50;
the rotating motor 12 rotates, the rotating motor 12 rotates to drive the driving wheel 13 to rotate, the driving wheel 13 rotates to drive the driven wheel 11 and the rotating shaft 7 to rotate, the friction wheel I5 is driven to rotate by two ends of the rotating shaft 7, at the moment, the hydraulic rod I14 at the lower end is controlled by the controller to extend, as shown in figures 2 and 3, the hydraulic rod I14 drives the shifting fork I15 to shift the friction wheel II 9 to move towards the friction wheel I5 until the shifting fork I5 is tightly attached to the friction wheel I5, the friction force between the shifting fork I15 and the friction wheel II 9 is extremely small, the friction wheel II 9 can rotate or move under the action of the limiting groove I8, when the hydraulic rod I14 is reset under the action of the tension spring I10, the shifting fork I15 can automatically reset, the friction wheel II 9 drives the friction wheel I5 to rotate by the friction force, the friction wheel I55 drives the transmission shaft 4 to rotate, and the transmission shaft 4 can stably rotate under the action of the vertical bearing I3, the other end of the transmission shaft 4 drives a first conical gear 17 to rotate, the first conical gear 17 drives a second conical gear 26 to rotate, the second conical gear 26 drives the pin shaft 25 and the first belt pulley 27 to rotate, the first belt pulley 27 drives a second belt pulley 42 to rotate through a transmission belt 43, the second belt pulley 42 drives the connecting shaft 40 and the heat dissipation fan blades 41 to rotate, and cooling liquid flowing through the main heat dissipater 45 can be dissipated through rotation of the heat dissipation fan blades 41; the LED lamp strip 68 around the water return pipe II 51, the main radiator 45 and the water return pipe I50 gradually changes from red to blue, and heat loss is simulated;
when the warm air switch is turned on, the controller controls the electromagnetic valve 54 on one side of the second connecting pipe 53 to be turned on, as shown in fig. 4, the controller controls the electromagnet 67 on the left side to be electrified, the electromagnet 67 generates a magnetic field to push the permanent magnet 66 to move towards the left side until the permanent magnet 66 is tightly attached to the second wear-resistant sheet 65 to drive the rotating pipe 59 on one side of the second return pipe 51 to rotate, the rotating pipe 59 drives the corresponding driving turbofan 60 to rotate and simultaneously drives the cooling liquid in the first connecting pipe 52 to flow, at the moment, the cooling liquid flowing through the annular pipe 47 flows through the second connecting pipe 53, the warm air radiator 46, the main radiator 45 of the first connecting pipe 52 and the first return pipe 50 to flow back to the first water inlet pipe 48, and at the moment, the LED lamp strip 68 on one side of the first connecting pipe 52 gradually changes from blue to red; then the controller controls the extension of the hydraulic rod I14 at the upper end, as shown in fig. 2 and fig. 3, the hydraulic rod I14 drives the shifting fork I15 to shift the friction wheel II 9 to move towards the friction wheel I5 until the shifting fork I5 is tightly attached, the friction force between the shifting fork I15 and the friction wheel II 9 is extremely small, the friction wheel II 9 can rotate or move under the action of the limiting groove I8, when the hydraulic rod I14 is reset under the action of the tension spring I10, the shifting fork I15 can automatically reset, the friction wheel II 9 drives the friction wheel I5 to rotate by utilizing the friction force, the friction wheel I55 drives the transmission shaft 4 to rotate, the transmission shaft 4 can stably rotate under the action of the vertical bearing I3, the other end of the transmission shaft 4 drives the conical gear I17 to rotate, the conical gear I17 drives the conical gear II 26 to rotate, the conical gear II 26 drives the pin shaft 25 and the belt pulley I27 to rotate, the first belt pulley 27 drives the second belt pulley 42 to rotate through the transmission belt 43, at the moment, the second hydraulic rod 36 is in a contracted state, the first friction plate 34 is made to cling to the rubber pad 71, the first friction plate 34 and the second belt pulley 42 synchronously rotate, the warm air fan 32 is driven to rotate, and partial heat of the warm air radiator 46 is brought to a place needing hot air;
along with different working conditions, the heat dissipation fan blades 41 and the warm air blower 32 need different rotating speeds, the controller controls the corresponding linear motor 20 to shorten, as shown in fig. 2, the linear motor 20 shortens to drive the first conical gear 17 to move, so that the transmission ratio of the first conical gear 17 to the second conical gear 26 is reduced, and on the premise that the rotating speed of the first conical gear 17 is not changed, the rotating speed of the second conical gear 26 can be reduced, so that the purpose of adjusting the rotating speeds of the heat dissipation fan blades 41 and the warm air blower 32 is achieved; when the temperature of the warm air radiator 46 does not reach the preset temperature, the controller controls the second hydraulic rod 36 to extend, the first friction plate 34 and the rubber pad 71 can be separated through the action of the second extension spring 35, and the second belt pulley 42 is in an idle state to simulate a protection mechanism of an actual working condition; the cooling liquid in each pipeline flows to drive the rotating wheel 56 and the reflecting sheet 57 to rotate, so that the students can conveniently observe the cooling liquid; when the rotating speeds of the radiating fan blades 41 and the warm air blower 32 are increased, the color of the LED lamp strip 68 at the corresponding position is gradually changed from red to orange, so that the purpose of simulating the accelerated heat loss is achieved;
when the linear motor 20 extends or shortens, the movement of the first bevel gear 17 can make the second bevel gear 26 move in the horizontal direction, at this time, the second bevel gear 26 is indirectly made to be attached to the first bevel gear 17 by the elastic force of the compression spring 23, the sliding block 22, the third vertical bearing 24, the second bevel gear 26 and the belt pulley 27 can stably move through the function of the trapezoidal groove 21, the belt pulley 27 can pull the transmission belt 43 to be tensioned, and the two ends of the transmission belt 43 can be kept in a tensioned state through the function of the press roller 30.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (5)
1. A teaching aid model of an engine thermal management system comprises a rectangular display stand (1) and an engine model (2), wherein the engine model (2) is installed on the upper surface of the rectangular display stand (1), a heat flow demonstration mechanism is arranged on the upper surface of the rectangular display stand (1), a water flow driving mechanism is arranged on one side of the heat flow demonstration mechanism, and the teaching aid model is characterized in that a heat dissipation linkage mechanism is arranged on one side of the engine model (2);
the heat dissipation linkage mechanism comprises a first vertical bearing (3) arranged on the upper surface of a rectangular display stand (1), wherein the first vertical bearing (3) is provided with two pairs, a transmission shaft (4) is arranged on the inner ring of the first vertical bearing (3), the transmission shaft (4) is provided with two pairs, one end of the transmission shaft (4) is provided with a first friction wheel (5), one side of the first vertical bearing (3) is provided with a second vertical bearing (6), the second vertical bearing (6) is fixedly connected with the rectangular display stand (1), the inner ring of the second vertical bearing (6) is provided with a rotating shaft (7), two ends of the rotating shaft (7) are provided with a first limiting groove (8), two ends of the rotating shaft (7) are provided with a second friction wheel (9), the second friction wheel (9) corresponds to the first friction wheel (5), the second friction wheel (9) is in sliding connection with the first limiting groove (8), a first extension spring (10) is arranged between the rotating shaft (7) and the second friction wheel (9), a driven wheel (11) is installed in the center of the rotating shaft (7), a rotating motor (12) is arranged on one side of the driven wheel (11), the rotating motor (12) is fixedly connected with the rectangular display table (1), a driving wheel (13) meshed with the driven wheel (11) is installed at the rotating end of the rotating motor (12), a first hydraulic rod (14) is arranged on one side of the second friction wheel (9), the first hydraulic rod (14) is fixedly connected with the rectangular display table (1), a first shifting fork (15) is installed at the telescopic end of the first hydraulic rod (14), and the first shifting fork (15) corresponds to the second friction wheel (9); the key bar (16) is installed at one end of the transmission shaft (4), a first conical gear (17) is installed on one side of the key bar (16), the first conical gear (17) is connected with the key bar (16) in a sliding mode, a first ball bearing (18) is installed at one end of the first conical gear (17), an inner ring of the first ball bearing (18) is fixedly connected with the first conical gear (17), a connecting plate (19) is installed on an outer ring of the first ball bearing (18), a linear motor (20) is installed on the upper surface of the rectangular display table (1), a telescopic end of the linear motor (20) is fixedly connected with the connecting plate (19), a trapezoidal groove (21) is formed in the upper surface of the rectangular display table (1), a sliding block (22) is installed at one end of the trapezoidal groove (21), the sliding block (22) is connected with the trapezoidal groove (21) in a sliding mode, a compression spring (23) is installed between the trapezoidal groove (21) and the sliding block (22), a third vertical bearing (24) is installed on the upper surface of the sliding block (22), a pin shaft (25) is arranged on the inner ring of the vertical bearing III (24), a conical gear II (26) which is meshed with the conical gear I (17) is arranged at the center of the pin shaft (25), and a belt pulley I (27) is arranged at one end of the pin shaft (25);
the heat dissipation linkage mechanism further comprises a vertical bearing four (28) arranged on the upper surface of the rectangular display platform (1), wherein a v-shaped rod (29) and a v-shaped rod (21274) are arranged on the inner ring of the vertical bearing four (28), a press roller (30) and a torsion spring (31) are arranged at one end of the v-shaped rod (29) and are arranged between the v-shaped rod (29) and the rectangular display platform (1); the rectangular display table is characterized in that a warm air fan (32) is mounted on the upper surface of the rectangular display table (1), a key groove (33) is formed in the power input end of the warm air fan (32), a first friction plate (34) is mounted at the power input end of the warm air fan (32), the first friction plate (34) is in sliding connection with the key groove (33), a second extension spring (35) is mounted between the first friction plate (34) and the power input end of the warm air fan (32), a second hydraulic rod (36) is arranged on one side of the warm air fan (32), a second shifting fork (37) is mounted at the telescopic end of the second hydraulic rod (36), the second shifting fork (37) corresponds to the first friction plate (34), an L-shaped support rod (38) is arranged on one side of the warm air fan (32), and the L-shaped support rod (38) is fixedly connected with the rectangular display table (1); rectangle show stand (1) upper surface mounting has vertical bearing five (39), and connecting axle (40) are installed to vertical bearing five (39) inner circle, and heat dissipation flabellum (41) are installed to connecting axle (40) one end, and two (42) belt pulleys are respectively installed to connecting axle (40) one end and L shape bracing piece (38) one end, install drive belt (43) between two (42) belt pulleys and one (27), and compression roller (30) and drive belt (43) sliding connection, and rubber pad (69) are installed to two (42) belt pulleys side surface.
2. The engine heat management system teaching aid model as claimed in claim 1, wherein the heat flow demonstration mechanism comprises a coolant kettle (44) installed on the upper surface of the rectangular display stand (1), a main radiator (45) is arranged on one side of the engine model (2), a warm air radiator (46) is arranged on the other side of the engine model (2), a ring pipe (47) is installed on the side surface of the engine model (2), a first water inlet pipe (48) is installed between the ring pipe (47) and the coolant kettle (44), a first water outlet pipe (49) is installed between the ring pipe (47) and the coolant kettle (44), a first water return pipe (50) is installed between the first water inlet pipe (48) and the main radiator (45), a second water return pipe (51) is installed between the ring pipe (47) and the main radiator (45), a first connecting pipe (52) is installed between the warm air radiator (46) and the main radiator (45), a second connecting pipe (53) is arranged between the warm air radiator (46) and the annular pipe (47); one sides of the water outlet pipe I (49), the water return pipe I (50) and the connecting pipe II (53) are provided with electromagnetic valves (54); horizontal bearings (55) are installed on two sides of the annular pipe (47), the first water inlet pipe (48), the first water outlet pipe (49), the first water return pipe (50), the second water return pipe (51), the first connecting pipe (52) and the second connecting pipe (53), rotating wheels (56) are installed on inner rings of the horizontal bearings (55), and light reflecting sheets (57) are installed on the side surfaces of the rotating wheels (56).
3. The engine thermal management system teaching aid model according to claim 1, wherein the water flow driving mechanism comprises sealing bearings (58) arranged on two sides of an annular pipe (47), a first connecting pipe (52) and a second return pipe (51), rotating pipes (59) are arranged on inner rings of the sealing bearings (58), three rotating pipes (59) are arranged, driving fans (60) are arranged on the side surfaces of the rotating pipes (59), a double-shaft motor (61) is arranged on the upper surface of the rectangular display stand (1), one end of the double-shaft motor (61) is fixedly connected with the rotating pipes (59), the other end of the double-shaft motor (61) penetrates through the rotating pipes (59), a rectangular groove (62) is formed in the output end of the double-shaft motor (61), a first wear-resistant sheet (63) is arranged at the output end of the double-shaft motor (61), the first wear-resistant sheet (63) is slidably connected with the rectangular groove (62), and a third extension spring (64) is arranged between the first wear-resistant sheet (63) and the rectangular groove (62), one end of the rotating pipe (59) is provided with a second wear-resistant sheet (65), the side surface of the first wear-resistant sheet (63) is provided with a permanent magnet (66), one side of the permanent magnet (66) is provided with an electromagnet (67), and the electromagnet (67) is fixedly connected with the rectangular display stand (1).
4. The teaching aid model of the engine thermal management system according to claim 1, wherein the LED lamp strip (68) is installed on the side surfaces of the annular pipe (47), the first water inlet pipe (48), the first water outlet pipe (49), the first water return pipe (50), the second water return pipe (51), the first connecting pipe (52) and the second connecting pipe (53).
5. The engine thermal management system teaching aid model of claim 1, wherein a plurality of turning wheels (56) are provided.
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| CN118238647A (en) * | 2024-05-28 | 2024-06-25 | 国网(山东)电动汽车服务有限公司 | Liquid cooling preassembled type fills high-efficient cooling system of stake |
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| CN113487959B (en) | 2022-06-10 |
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