CN112485004A - Cold and hot impact equipment for engine - Google Patents
Cold and hot impact equipment for engine Download PDFInfo
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- CN112485004A CN112485004A CN202011354809.6A CN202011354809A CN112485004A CN 112485004 A CN112485004 A CN 112485004A CN 202011354809 A CN202011354809 A CN 202011354809A CN 112485004 A CN112485004 A CN 112485004A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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Abstract
The invention discloses an engine cold-hot impact device which comprises a heat preservation box body, a heating box body and an industrial refrigerator, wherein a stand column is installed at the bottom in the heat preservation box body through a bearing, a placing plate is fixed at the top of the stand column through a bolt, a driving motor is installed on one side of the stand column through an installing frame, an air inlet groove is formed in one end of the top in the heat preservation box body, a small-sized exhaust fan is installed inside the air inlet groove through the installing frame, an air outlet groove is formed in the other end of the top in the heat preservation box body, and a small-sized exhaust fan. The industrial refrigerator provides cold air for the interior of the heat insulation box body, the fan blows the temperature heated by the electric heating pipe into the heat insulation box body, the cold air or hot air can circulate in the heat insulation box body, the engine can rotate during testing, the temperature rising and falling speed is high, the engine is uniformly heated and cooled, and the industrial refrigerator is suitable for wide popularization and use.
Description
Technical Field
The invention relates to the technical field of engine production, in particular to cold and hot impact equipment for an engine.
Background
The engine is a machine capable of converting other forms of energy into mechanical energy, and comprises an internal combustion engine (a reciprocating piston engine), an external combustion engine (a stirling engine, a steam engine and the like), a jet engine, an electric motor and the like, wherein chemical energy is converted into mechanical energy usually by the internal combustion engine, the engine is suitable for a power generation device and can also refer to the whole machine comprising the power device, various detections are needed in the production process of the engine, and an important part of cold and high temperature resistance detections is detected by using cold and hot impact equipment, so that whether the engine can normally work in a cold or high temperature environment is detected.
Patent No. CN201820997201.7 discloses a cold and hot impact device, cold and hot impact head can provide cold, hot gas flow of different temperatures, the controllable temperature scope of cold, hot gas flow is-70 ℃ to 220 ℃, cold, hot gas flow are by cold and hot impact head sprays and gets into the seal box, through right cold, hot gas flow temperature sets up, can realize the switching between high temperature, low temperature and the normal atmospheric temperature in the seal box, work as test sample inserts when sample accomodates the frame in, through set up in survey the temperature measurement subassembly of surveying the board, can record and insert sample accomodate the frame the temperature of test sample, need not the plug like this, can realize high temperature, low temperature and normal atmospheric temperature test at same station, like this test sample's cold and hot impact test can realize at same station to can avoid setting up a plurality of boxes, reduce the area of cold and hot impact device, moreover, the plugging times of the test sample are reduced, the test efficiency is greatly improved, and the influence on the service life of the test sample in the test process is reduced.
The cold and hot impact equipment has the following defects: 1. the whole structure is simple, the heating and refrigerating efficiency is low, the engine cannot be effectively detected, 2, hot air flow and cold air flow of the engine are calm after entering the heat preservation box body, the temperature cannot be quickly conducted to the engine, the testing efficiency is reduced, and therefore the engine cold and hot impact equipment is provided.
Disclosure of Invention
The invention mainly aims to provide an engine cold-hot impact device which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
an engine cold-hot impact device comprises a heat preservation box body, a heating box body and an industrial refrigerator, wherein a stand column is installed at the bottom in the heat preservation box body through a bearing, a placing plate is fixed at the top of the stand column through a bolt, a driving motor is installed on one side of the stand column through a mounting frame, an air inlet groove is formed in one end of the top in the heat preservation box body, a small-sized exhaust fan is installed in the air inlet groove through the mounting frame, an air outlet groove is formed in the other end of the top in the heat preservation box body, a small-sized exhaust fan is installed in the air outlet groove through the mounting frame, the industrial refrigerator is arranged on one side of the heat preservation box body, the air outlet end of the industrial refrigerator is connected with a valve through a threaded groove, one end of the valve is connected with an air inlet cover through the threaded groove, the heating box is internally fixed with a heat dissipation grid through bolts, an electric heating pipe is embedded in the heat dissipation grid, a fan is installed on one side of the heat dissipation grid through a mounting frame, and the top of the heat preservation box is connected with an electric valve through a pipeline.
As a preferred embodiment of the present invention, an air outlet housing is fixed to the top of the electric valve through a bolt, and an exhaust fan is installed inside the air outlet housing through an installation frame.
In a preferred embodiment of the present invention, a temperature sensor is mounted at one end of the thermal insulation box body through a mounting seat, and a detection end of the temperature sensor is located inside the thermal insulation box body.
In a preferred embodiment of the present invention, communication holes are formed through both sides of the inside of the heat insulation box body, a protective net is fixed to one side of each communication hole through a clamping groove, and the number of the small-sized air outlet fans is plural.
In a preferred embodiment of the present invention, a dust screen is fixed to one side of the heating cabinet through a clamping groove, and the heat dissipation grid is made of a metal aluminum material.
As a preferred embodiment of the present invention, a temperature controller is installed at one end of the heating cabinet through an installation seat, a detection end of the temperature controller is located inside the heating cabinet, a current output end of the temperature controller is electrically connected to a current input end of an electric heating tube through a power line, and the number of the electric heating tubes is plural.
As a preferred embodiment of the invention, two sides of the connecting box are provided with a first preformed groove, a second preformed groove is arranged in the baffle, the number of the first preformed grooves and the second preformed grooves is multiple, one side of the baffle is welded with a pull rod, and the pull rod is positioned outside the connecting box.
As a preferred embodiment of the present invention, the air inlet cover is fixed to one side of the heat preservation box body by bolts, and both ends of one side of the heat preservation box body are connected to the sealing box door by rotating shafts.
As a preferred embodiment of the present invention, the air inlet slot is communicated with the air outlet slot, the bottoms of the air inlet slot and the air outlet slot are both provided with a plurality of vent holes, and the number of the vent holes is multiple.
As a preferred embodiment of the present invention, a second gear is fixed to an output shaft at the bottom of the driving motor through a bolt, a first gear is fixed to the bottom end of the upright post through a bolt, and the first gear is meshed with the second gear.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the cold and hot impact equipment for the engine, the industrial refrigerator, the valve and the air inlet cover are arranged, personnel open the sealing box door to place the engine to be tested on the stand column, fix the engine to be tested by using bolts, close the sealing box door and open the industrial refrigerator and the valve, the industrial refrigerator can produce cold air and convey the cold air into the heat insulation box body through the valve and the air inlet cover, the industrial refrigerator continuously conveys the cold air into the heat insulation box body to continuously reduce the internal temperature of the heat insulation box body, and the running state of the engine in a low-temperature environment can be tested.
2. According to the cold and hot impact equipment for the engine, the heat dissipation grid mesh, the electric heating pipe and the fan are arranged, personnel set a set value of the temperature controller, heating and stable heating of the electric heating pipe can be controlled, the heat dissipation grid mesh made of the metal aluminum material can quickly absorb and conduct out the temperature after the electric heating pipe is heated, the personnel open the fan and pull the baffle plate through the pull rod, so that the plurality of second reserved holes in the baffle plate and the plurality of first reserved grooves in the connecting box are kept consistent, the fan works to blow the heat on the heat dissipation grid mesh into the heat insulation box body through the first reserved grooves and the second reserved holes, the temperature in the heat insulation box body is continuously increased, and the running state of the engine in a high-temperature environment is tested.
3. The engine cold and hot impact equipment is used for testing an engine, a person can turn on the driving motor by arranging the small-sized suction fan, the small-sized outlet fan and the driving motor, the driving motor works to drive the stand column to rotate through the first gear and the second gear, the stand column rotates to drive the placing plate and the engine on the top of the placing plate to slowly rotate, so that the placing plate and the engine are heated and cooled uniformly, the testing efficiency is improved, the person turns on the small-sized suction fan in the air inlet groove and the small-sized outlet fan in the air outlet groove, the small-sized suction fan works to suck hot air or cold air in the heat insulation box into the air inlet groove through the plurality of vent holes, the small-sized outlet fan works to suck the hot air or the cold air in the air inlet groove into the heat insulation box again, the heat insulation.
4. According to the cold and hot impact equipment for the engine, the electric valve and the exhaust fan are arranged, personnel open the electric valve and the exhaust fan, the exhaust fan can exhaust air in the heat insulation box body through the electric valve, the interior of the heat insulation box body is quickly recovered to normal temperature, the personnel can know the current temperature in the heat insulation box body and the plurality of communication holes on the two sides of the heat insulation box body by observing the temperature sensor, cold air produced by an industrial refrigerator or hot air blown by the fan can conveniently enter the heat insulation box body, and the protective net can prevent dust, impurities and the like from entering the heat insulation box body.
Drawings
Fig. 1 is a schematic overall structure diagram of an engine cold-hot impact device according to the present invention.
FIG. 2 is a schematic diagram of the internal structure of a thermal insulation box of the engine thermal shock device of the present invention.
Fig. 3 is a schematic diagram of the internal structure of a heating box of the engine thermal shock device of the present invention.
Fig. 4 is a schematic structural diagram of a connecting box and a baffle plate of the cold and hot impact equipment of the engine.
In the figure: 1. a heat preservation box body; 2. a heating box body; 3. an industrial refrigerator; 4. a connection box; 5. an air inlet cover; 6. sealing the box door; 7. a valve; 8. an electrically operated valve; 9. an air outlet cover; 10. a baffle plate; 11. a temperature controller; 12. a temperature sensor; 13. a column; 14. a drive motor; 15. a first gear; 16. a second gear; 17. an air inlet groove; 18. an air outlet groove; 19. a small-sized suction fan; 20. a small-sized air outlet fan; 21. a communicating hole; 22. a protective net; 23. a vent hole; 24. a heat dissipation grid mesh; 25. an electric heating tube; 26. a fan; 27. a dust screen; 31. an exhaust fan; 32. placing the plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.
As shown in fig. 1-4, an engine cold-hot impact device comprises a heat preservation box body 1, a heating box body 2 and an industrial refrigerator 3, wherein a vertical column 13 is installed at the bottom in the heat preservation box body 1 through a bearing, a placing plate 32 is fixed at the top of the vertical column 13 through a bolt, a driving motor 14 is installed at one side of the vertical column 13 through a mounting rack, an air inlet groove 17 is formed at one end of the inner top of the heat preservation box body 1, a small-sized suction fan 19 is installed inside the air inlet groove 17 through the mounting rack, an air outlet groove 18 is formed at the other end of the inner top of the heat preservation box body 1, a small-sized air outlet fan 20 is installed inside the air outlet fan 18 through the mounting rack, the industrial refrigerator 3 is arranged at one side of the heat preservation box body 1, a valve 7 is connected at the air outlet end of the industrial refrigerator 3 through a thread, the inside cover of connecting box 4 is equipped with baffle 10, 4 one sides of connecting box have the box 2 of heating through the bolt fastening, it has heat dissipation bars net 24 to heat the box 2 inside through the bolt fastening, the inside electric heating pipe 25 that is equipped with that inlays of heat dissipation bars net 24, fan 26 is installed through the mounting bracket in 24 one side of heat dissipation bars net, there is electric valve 8 at 1 top of insulation box through the pipe connection.
Wherein, electric valve 8 top is fixed with out fan housing 9 through the bolt, go out that fan housing 9 is inside to install extraction fan 31 through the mounting bracket.
In this embodiment, as shown in fig. 4, when the exhaust fan 31 works, the electric valve 8 can exhaust the gas in the thermal insulation box 1 and exhaust the gas from the air outlet cover 9, so that the interior of the thermal insulation box 1 is quickly returned to normal temperature.
Wherein, temperature sensor 12 is installed through the mount pad to insulation box 1 one end, temperature sensor 12's sense terminal is located insulation box 1 inside.
In this embodiment, as shown in fig. 1, the temperature sensor 12 can detect the temperature inside the thermal insulation box 1 and display the temperature, so that the person can know the current temperature inside the thermal insulation box 1 conveniently.
Two sides inside the heat preservation box body 1 are provided with communicating holes 21, one sides of the communicating holes 21 are fixed with protective nets 22 through clamping grooves, and the number of the small-sized air outlet fans 20 is multiple.
In this embodiment, as shown in fig. 2, the plurality of communication holes 21 on both sides of the thermal insulation case 1 facilitate the entry of cold air produced by the industrial refrigerator 3 or hot air blown by the fan 26 into the thermal insulation case 1, and the protection net 22 can prevent dust, impurities, etc. from entering the thermal insulation case 1.
Wherein, a dustproof net 27 is fixed on one side of the heating box body 2 through a clamping groove, and the heat dissipation grid 24 is made of a metal aluminum material.
In this embodiment, as shown in fig. 3, the dust screen 27 can prevent external dust from entering the heating box 2, and the heat dissipation grid 24 made of aluminum material has good heat conductivity, and can quickly absorb and conduct the heated temperature of the electric heating tube 25.
Wherein, heat 2 one ends of box and install temperature controller 11 through the mount pad, temperature controller 11's sense terminal is located and heats 2 insides of box, temperature controller 11's current output end constitutes the electricity through the power cord and is connected with electric heating pipe 25's current input end, electric heating pipe 25's quantity is a plurality of.
In this embodiment, as shown in fig. 3, a person sets a set value of the temperature controller 11 to control the heating of the electric heating pipe 25 and the heating temperature thereof.
A preformed groove 29 is formed in two sides of the connecting box 4, a second preformed groove 30 is formed in the baffle 28, the number of the first preformed groove 29 and the number of the second preformed groove 30 are multiple, a pull rod 10 is welded on one side of the baffle 28, and the pull rod 10 is located on the outer side of the connecting box 4.
In this embodiment, as shown in fig. 4, a person pulls the baffle 28 through the pull rod 10, so that the plurality of second preformed holes 30 on the baffle 28 and the plurality of first preformed grooves 29 on the connecting box 4 are kept consistent, and the heating box 2 can allow hot air to enter the thermal insulation box 1.
The air inlet cover 5 is fixed on one side of the heat preservation box body 1 through bolts, and two ends of one side of the heat preservation box body 1 are connected with the sealing box door 6 through rotating shafts.
In the embodiment, as shown in fig. 1, the sealing box door 6 is used for sealing the thermal insulation box 1.
The air inlet groove 17 is communicated with the air outlet groove 18, the bottom of the air inlet groove 17 is provided with a plurality of air holes 23, and the number of the air holes 23 is multiple.
In this embodiment, as shown in fig. 2, the small-sized exhaust fan 19 operates to exhaust the hot air or the cold air in the thermal insulation box 1 into the air inlet duct 17 through the plurality of vent holes 23, and the small-sized exhaust fan 20 operates to exhaust the hot air or the cold air in the air inlet duct 17 into the thermal insulation box 1 again, so that the interior of the thermal insulation box 1 can be circulated.
An output shaft at the bottom of the driving motor 14 is fixed with a second gear 16 through a bolt, the bottom end of the upright post 13 is fixed with a first gear 15 through a bolt, and the first gear 15 is meshed with the second gear 16.
In this embodiment, as shown in fig. 2, the driving motor 14 operates to drive the upright post 13 to rotate through the first gear 15 and the second gear 16, and the upright post 13 rotates to drive the placing plate 32 and the engine on the top of the placing plate to rotate slowly.
It should be noted that the present invention is an engine cold and hot impact device, which comprises a heat insulation box 1, a heating box 2, an industrial refrigerator 3, a connection box 4, an air inlet cover 5, a sealed box door 6, a valve 7, an electrically operated valve 8, an air outlet cover 9, a pull rod 10, a temperature controller 11, a temperature sensor 12, a vertical column 13, a driving motor 14, a gear 15I, a gear 16 II, an air inlet slot 17, an air outlet slot 18, a small suction fan 19, a small air outlet fan 20, communication holes 21, a protective screen 22, air vents 23, a heat dissipation grid 24, an electric heating pipe 25, a fan 26, a dust screen 27, a baffle 28, a reserved slot 29I, a reserved slot 30 II, a suction fan 31, and a placement plate 32, wherein the components are all universal standard components or components known to those skilled in the art, and the structure and principle of the components are known to those skilled in the art through technical manuals or through conventional experimental methods, when the device works, a person uses a power cord to connect the industrial refrigerator 3, the temperature sensor 12, the temperature controller 11, the electric valve 8, the driving motor 14, the small-sized exhaust fan 19, the small-sized exhaust fan 20, the fan 26 and the exhaust fan 31 with an external power supply, the sealed box door 6 is opened to place an engine to be tested on the upright post 13 and fix the engine with a bolt, the sealed box door 6 is closed, the industrial refrigerator 3 and the valve 7 are opened, the industrial refrigerator 3 can produce cold air and convey the cold air into the heat preservation box body 1 through the valve 7 and the air inlet cover 5, the industrial refrigerator 3 continuously conveys the cold air into the heat preservation box body 1 to continuously reduce the internal temperature, the running state of the engine in a low-temperature environment can be tested, after the test is finished, the industrial refrigerator 3 and the air inlet cover 5 are closed, the electric valve 8 and the exhaust fan 31 are opened, the exhaust fan 31 can exhaust, the interior of the heat preservation box body is quickly recovered to the normal temperature, a person sets a set value of a temperature controller 11 and can control the electric heating pipe 25 to heat and the heating stability of the electric heating pipe, a heat dissipation grid 24 made of a metal aluminum material can quickly absorb and conduct the temperature of the heated electric heating pipe 25, the person opens a fan 26 and pulls a baffle 28 through a pull rod 10 to enable a plurality of second reserved holes 30 on the baffle 28 and a plurality of first reserved grooves 29 on a connecting box 4 to be consistent, the fan 26 works to blow the heat on the heat dissipation grid 24 into the heat preservation box body 1 through the first reserved grooves 29 and the second reserved holes 30 to enable the temperature in the heat preservation box body 1 to continuously rise, the running state of an engine under a high-temperature environment is tested, the person can open a driving motor 14 when the engine works, the driving motor 14 drives an upright column 13 to rotate through a first gear 15 and a second gear 16, the upright column 13 rotates to drive a placing plate 32 and the engine on the top, the heat preservation box body is heated and cooled uniformly, the testing efficiency is improved, a person opens a small-sized suction fan 19 in an air inlet groove 17 and a small-sized air outlet fan 20 in an air outlet groove 18, the small-sized suction fan 19 pumps hot air or cold air in the heat preservation box body 1 into the air inlet groove 17 through a plurality of vent holes 23, the small-sized air outlet fan 20 pumps the hot air or the cold air in the air inlet groove 17 into the heat preservation box body 1 again, circulation in the heat preservation box body 1 is enabled to be achieved, the temperature rising or falling speed in the heat preservation box body 1 is improved, the person observes a temperature sensor 12, can know the current temperature in the heat preservation box body 1, a plurality of communication holes 21 on two sides of the heat preservation box body 1, the cold air made by an industrial refrigerator 3 or the hot air blown by a fan 26 can conveniently enter the heat preservation box body 1, and a protection.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an engine cold and hot impact equipment, includes insulation box (1), heats box (2) and industrial refrigerator (3), its characterized in that: the heat preservation box body is characterized in that a stand column (13) is installed at the bottom of the heat preservation box body (1) through a bearing, a placing plate (32) is fixed at the top of the stand column (13) through bolts, a driving motor (14) is installed on one side of the stand column (13) through a mounting frame, an air inlet groove (17) is formed in one end of the inner top of the heat preservation box body (1), a small-sized suction fan (19) is installed in the air inlet groove (17) through the mounting frame, an air outlet groove (18) is formed in the other end of the inner top of the heat preservation box body (1), a small-sized air outlet fan (20) is installed in the air outlet groove (18) through the mounting frame, an industrial refrigerator (3) is arranged on one side of the heat preservation box body (1), a valve (7) is connected to the air outlet end of the industrial refrigerator (3) through a, the inside cover of connecting box (4) is equipped with baffle (28), connecting box (4) one side has heating box (2) through the bolt fastening, heating box (2) inside has heat dissipation grid net (24) through the bolt fastening, heat dissipation grid net (24) inside is inlayed and is equipped with electric heating pipe (25), fan (26) are installed through the mounting bracket in heat dissipation grid net (24) one side, insulation box (1) top has electric valve (8) through the pipe connection.
2. An engine cold-hot impact device according to claim 1, characterized in that: electric valve (8) top is fixed with out fan housing (9) through the bolt, go out fan housing (9) inside and install extraction fan (31) through the mounting bracket.
3. An engine cold-hot impact device according to claim 1, characterized in that: temperature sensor (12) are installed through the mount pad to insulation box (1) one end, the sense terminal of temperature sensor (12) is located insulation box (1) inside.
4. An engine cold-hot impact device according to claim 1, characterized in that: the two sides in the heat preservation box body (1) are provided with communicating holes (21), one sides of the communicating holes (21) are fixed with protective nets (22) through clamping grooves, and the number of the small-sized air outlet fans (20) is multiple.
5. An engine cold-hot impact device according to claim 1, characterized in that: one side of the heating box body (2) is fixed with a dustproof net (27) through a clamping groove, and the heat dissipation grid net (24) is made of a metal aluminum material.
6. An engine cold-hot impact device according to claim 1, characterized in that: the heating box body (2) one end is installed temperature controller (11) through the mount pad, the sense terminal of temperature controller (11) is located inside heating box body (2), the current output end of temperature controller (11) constitutes the electricity through the power cord and is connected with the current input end of electric heating pipe (25) is connected, the quantity of electric heating pipe (25) is a plurality of.
7. An engine cold-hot impact device according to claim 1, characterized in that: a preformed groove (29) has been seted up to connecting box (4) both sides, No. two preformed grooves (30) have been seted up to baffle (28) inside, the quantity of a preformed groove (29) and No. two preformed grooves (30) is a plurality of, baffle (28) one side welding has pull rod (10), pull rod (10) are located the connecting box (4) outside.
8. An engine cold-hot impact device according to claim 1, characterized in that: the air inlet cover (5) is fixed on one side of the heat preservation box body (1) through bolts, and two ends of one side of the heat preservation box body (1) are connected with the sealing box door (6) through rotating shafts.
9. An engine cold-hot impact device according to claim 1, characterized in that: the air inlet groove (17) is communicated with the air outlet groove (18), air vents (23) are formed in the bottoms of the air inlet groove (17) and the air outlet groove (18), and the number of the air vents (23) is multiple.
10. An engine cold-hot impact device according to claim 1, characterized in that: an output shaft at the bottom of the driving motor (14) is fixedly provided with a second gear (16) through a bolt, the bottom end of the upright post (13) is fixedly provided with a first gear (15) through a bolt, and the first gear (15) is meshed with the second gear (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354809.6A CN112485004B (en) | 2020-11-27 | 2020-11-27 | Cold and hot impact equipment for engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354809.6A CN112485004B (en) | 2020-11-27 | 2020-11-27 | Cold and hot impact equipment for engine |
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| CN112485004A true CN112485004A (en) | 2021-03-12 |
| CN112485004B CN112485004B (en) | 2022-12-23 |
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| CN202011354809.6A Active CN112485004B (en) | 2020-11-27 | 2020-11-27 | Cold and hot impact equipment for engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113984316A (en) * | 2021-12-24 | 2022-01-28 | 苏州英特模汽车科技有限公司 | Automobile part pressure pulsation test device |
| CN114563192A (en) * | 2022-02-10 | 2022-05-31 | 宁波天擎航天科技有限公司 | Solid rocket engine ground test bench and temperature control method |
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| CN113984316A (en) * | 2021-12-24 | 2022-01-28 | 苏州英特模汽车科技有限公司 | Automobile part pressure pulsation test device |
| CN113984316B (en) * | 2021-12-24 | 2022-04-05 | 苏州英特模汽车科技有限公司 | Automobile part pressure pulsation test device |
| CN114563192A (en) * | 2022-02-10 | 2022-05-31 | 宁波天擎航天科技有限公司 | Solid rocket engine ground test bench and temperature control method |
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