CN210460830U

CN210460830U - Water-cooled engine

Info

Publication number: CN210460830U
Application number: CN201921441217.0U
Authority: CN
Inventors: 滕俊宇
Original assignee: Baicang Power Technology (shenzhen) Co Ltd
Current assignee: Baicang Power Technology (shenzhen) Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-05
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a water-cooled engine, this water-cooled engine including be used for supplying piston rod reciprocating motion's cylinder in it, be used for sealing the cylinder lid of cylinder, be used for the crankshaft device of output power and be used for radiating water cooling plant, the cylinder lid sets up the upper end of cylinder, crankshaft device sets up the lower extreme of cylinder, water cooling plant encircles and establishes on the periphery wall of cylinder, water cooling plant includes the basin, sets up intake nozzle and faucet on the basin, be used for with the cooling water in the basin impress extremely the subassembly that draws water in the basin. The utility model discloses water-cooled engine can its radiating effect of effectual improvement to guarantee the normal operating of engine.

Description

Water-cooled engine

Technical Field

The utility model relates to the technical field of engines, concretely relates to water-cooled engine.

Background

The engine is a power generating device capable of converting other forms of energy into mechanical energy, and comprises an internal combustion engine, an external combustion engine, an electric motor and the like, wherein the internal combustion engine and the external combustion engine convert chemical energy generated by combustion into mechanical energy, and the electric motor converts electric energy into mechanical energy.

With the increasing economic level, model cars gradually come into people's lives, unlike toy cars, which have a chassis, a body, an engine, a heat dissipation system, an electrical system, and the like. The model car is a simulated car manufactured according to the reduction of the real car in proportion, the power is mainly provided by the engine, and the heat dissipation system dissipates heat of the engine to ensure the normal operation of the engine.

In the prior art, a model car usually adopts an air cooling mode to dissipate heat of an engine, and a heat dissipation fan can be arranged in the model car. However, the air-cooled heat dissipation is performed by using air as a medium to increase the air flow rate per unit time, so as to increase the heat dissipation of the engine, which has a drawback of poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a water-cooled engine to solve the not good technical problem of radiating effect of current air-cooled engine.

In order to solve the technical problem, the utility model provides a water-cooled engine, this water-cooled engine including be used for supplying piston rod reciprocating motion's cylinder in it, be used for the cylinder cap of sealed cylinder, be used for the crankshaft device of output power and be used for radiating water cooling plant, the cylinder cap sets up the upper end of cylinder, crankshaft device sets up the lower extreme of cylinder, the water cooling plant ring is established on the periphery wall of cylinder, water cooling plant includes the basin, sets up intake nozzle and faucet on the basin, be used for with the cooling water in the basin impress extremely the subassembly that draws water in the basin.

Preferably, the water tank is arranged in a split manner and comprises an upper water tank and a lower water tank, the water inlet nozzle is arranged on the side wall of the lower water tank, and the water outlet nozzle is arranged on the side wall of the upper water tank.

Preferably, the water pumping assembly is a gear pump, a pump chamber for installing the gear pump and a pump cover for sealing the pump chamber are arranged on the side wall of the water tank, the water inlet nozzle is arranged on the pump cover, the pump chamber comprises a first water channel corresponding to the water inlet nozzle and a second water channel communicated with the water tank, the first water channel and the second water channel are isolated by two gears of the gear pump, the two gears are meshed with each other, one of the two gears is connected with an output execution end of the power source, and the two gears are used for pressing water in the first water channel into the second water channel.

Preferably, the crankshaft device comprises a crankcase, a crankshaft arranged in the crankcase and used for being matched with the piston rod, a flywheel arranged at one end of the crankshaft and a belt pulley arranged at the other end of the crankshaft, and one of the two gears is connected with the belt pulley through a first synchronous belt.

Preferably, the water-cooled engine further comprises a heat dissipation fan arranged on the side wall of the water tank, the heat dissipation fan comprises a rotatable impeller and a plurality of blades arranged on the impeller, and the impeller is connected with the belt wheel through the first synchronous belt.

Preferably, the water-cooled engine further comprises a starting motor arranged on the side wall of the water tank, and an output shaft of the starting motor is connected with the flywheel through a second synchronous belt.

Preferably, the water-cooled engine further comprises a cam shaft arranged on the cylinder cover and used for controlling the opening and closing of the valve, wherein a cam is arranged on the cam shaft, and the cam is connected with the belt wheel through the first synchronous belt.

Preferably, a combustion chamber is provided between the cylinder head and the cylinder tube, and the water-cooled engine further includes a carburetor provided on the cylinder head for supplying fuel to the combustion chamber.

Preferably, the water-cooled engine is still including setting up on the cylinder head, and with the exhaust box of combustion chamber intercommunication, be provided with the gas outlet nozzle on the exhaust box, the gas outlet nozzle passes through the trachea and discharges gas to the oil tank.

Preferably, the exhaust box include the box body and with the play sound pipe of box body intercommunication, be provided with a plurality of reflection passageways that communicate in proper order in the box body, reflection passageway is used for weakening gas flow noise, be provided with a plurality of through-holes on going out the sound pipe.

The embodiment of the utility model provides a beneficial effect lies in: the piston rod reciprocates up and down in the cylinder, the up-and-down motion of the piston rod is converted into the rotary motion of the crankshaft through the crankshaft device, in the process, cooling water in the water tank is pressed into the water tank through the water inlet nozzle by the water pumping assembly, heat generated in the cylinder is taken away through the cooling water, the cooling water after heat exchange flows out through the water outlet nozzle, the water after heat exchange is cooled and flows back to the water tank, and the circulation is repeated, so that a water cooling circulation system of the engine is formed. The utility model provides a water-cooled engine can its radiating effect of effectual improvement to guarantee the normal operating of engine.

Drawings

Fig. 1 is a schematic structural view of the water-cooled engine of the present invention at a viewing angle;

fig. 2 is a schematic structural view of the water-cooled engine according to another view angle of the present invention;

FIG. 3 is an assembly structure diagram of the cylinder head, the water cooling device and the crankshaft device of the water-cooled engine of the present invention;

FIG. 4 is an assembly structure view of the water cooling device and the cylinder of the water-cooled engine of the present invention;

FIG. 5 is a block diagram of the structure shown in FIG. 4 without the pump cap assembled;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a structural diagram of the water discharge tank of the water-cooled engine of the present invention;

FIG. 8 is a structural diagram of the water supply tank of the water-cooled engine of the present invention;

FIG. 9 is a structural diagram of a crankshaft device of the water-cooled engine of the present invention;

fig. 10 is a structural view of an exhaust box of the water-cooled engine according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In order to solve the technical problem, the utility model provides a water-cooled engine, refer to fig. 3 and fig. 4, this water-cooled engine is including the cylinder 10 that is used for supplying the piston rod reciprocating motion in it, a cylinder lid 20 for sealing cylinder 10, a bent axle device 30 and the water cooling plant 40 that is used for the output power, cylinder lid 20 sets up the upper end at cylinder 10, bent axle device 30 sets up the lower extreme at cylinder 10, water cooling plant 40 encircles and establishes on the periphery wall of cylinder 10, water cooling plant 40 includes basin 41, set up intake nozzle 42 and faucet 43 on basin 41, be used for the subassembly 44 that draws water of the cooling water impressed to basin 41 in the basin in the water tank.

The piston rod mainly comprises a piston and a connecting rod, the piston is a machine element which reciprocates up and down in the cylinder 10, the top of the piston is a main part forming the combustion chamber, and the connecting rod is connected with the piston and a crankshaft so as to transmit acting force borne by the piston to the crankshaft device 30, and the crankshaft device 30 converts the reciprocating motion of the piston into rotary motion so as to drive wheels to rotate through the rotary power.

When the engine is started, heat is generated in the cylinder 10, and the heat acts on the surface of the cylinder 10 to raise the temperature of the surface of the cylinder 10, and if the temperature of the surface of the cylinder 10 is not lowered in time to control the operating temperature of the engine, the engine cannot normally operate or even stops operating. In this embodiment, in order to dissipate heat generated by the engine in time, the water pumping assembly 44 may be used to press cooling water in the water tank into the water tank 41 through the water inlet nozzle 42, the cooling water flows in the water tank 41 and contacts with the outer surface of the cylinder 10, so as to absorb heat generated in the cylinder 10 through the cooling water, and press out the heat-exchanged water from the water outlet nozzle 43, and the above cycle is performed to dissipate heat and cool the engine in time.

It should be noted that the above-mentioned pumping assembly 44 may be a water pump or a gear pump, including but not limited to, and those skilled in the art can select the pumping assembly according to the actual situation. Further, the water pumping assembly 44 may be provided independently of the engine or may be provided on the engine.

Referring to fig. 4, the water tank 41 is particularly configured as a through-center rectangular structure, which is merely exemplary, but not limiting, including but not limited thereto. The middle space of the water tank 41 is mainly used for installing the cylinder barrel 10, namely the cylinder barrel 10 is sleeved in the middle space of the water tank 41, and a cylinder gasket is further arranged at the top end of the cylinder barrel 10 and used for ensuring the sealing performance of the cylinder barrel 10 and preventing air leakage of the cylinder.

It can be understood that the water after heat exchange can be cooled through the radiator, and the cooled water is pressed into the water tank, so that the recycling of the cooling water is ensured. Specifically, the cooling water in the water tank flows into the water tank 41 from the water inlet nozzle 42 under the action of the water pumping assembly 44, the cooling water flows in the water tank 41 and exchanges heat with the surface of the cylinder 10 to perform a heat dissipation effect, and the water after heat exchange flows out from the water outlet nozzle 43, is subjected to heat dissipation and cooling treatment by the heat sink, and finally flows into the water tank.

In an embodiment, referring to fig. 7 and 8, the water tank 41 provided by the present invention is a split type, and includes an upper water tank 411 and a lower water tank 412, the water inlet nozzle 42 is disposed on the side wall of the lower water tank 412, and the water outlet nozzle 43 is disposed on the side wall of the upper water tank 411. In this embodiment, the upper water tank 411 and the lower water tank 412 are respectively provided with a containing space for containing water, the lower water tank 412 is provided with a water inlet through hole so that the cooling water flowing in from the water inlet nozzle 42 flows in through the water inlet through hole, and the upper water tank 411 is provided with a water outlet through hole so that the water after heat exchange is discharged from the water outlet nozzle 43 through the water outlet through hole. It will be appreciated that the water inlet nozzle 42 is disposed on the lower water tank 412 near the bottom thereof, and the water outlet nozzle 43 is disposed on the upper water tank 411 near the top thereof, so that cooling water can flow in the water tank 41 as much as possible, thereby improving heat dissipation. Furthermore, the water tank 41 is arranged in a split manner, so that the processing is convenient, and meanwhile, the cleaning and the maintenance are convenient.

In another embodiment, the present invention provides a water pumping assembly 44 is a gear pump, a pump cover 442 for installing a pump chamber of the gear pump and for sealing the pump chamber is disposed on the side wall of the water tank 41, the water inlet nozzle 42 is disposed on the pump cover 442, the pump chamber includes a first water channel 441a corresponding to the water inlet nozzle 42 and a second water channel 441b communicated with the water tank 41, the first water channel 441a and the second water channel 441b are separated by two gears 443 of the gear pump, the two gears 443 are engaged with each other, one of the two gears is connected with an output execution end of the power source, and the two gears 443 are used for pressing water in the first water channel 441a into the second water channel 441 b. Referring to fig. 5 and 6, a pump chamber for mounting a gear 443 pump is formed on a side wall of the water tank 41, the pump chamber is configured to have four blade-shaped grooves, more specifically, an upper groove and a lower groove having shapes matching the shape of the gear 443, the left groove and the right groove respectively form a first water channel 441a corresponding to the water inlet nozzle 42 and a second water channel 441b communicated with the water tank 41, the first water channel 441a and the second water channel 441b are separated by two gears 443, the first water channel 441a and the second water channel 441b are not communicated with each other when the gears 443 do not rotate, and water flowing from the water inlet nozzle 42 flows from the first water channel 441a to the second water channel 441b and then to the water tank 41 when the two gears 443 rotate, so as to dissipate heat generated by the engine. Further, the pump cover 442 is mainly used to seal the pump chamber from the cooling water flowing into the pump chamber from the water inlet nozzle 42, wherein the water inlet nozzle 42 is provided on the pump cover 442 corresponding to the position of the first water passage 441 a.

In a further embodiment, referring to fig. 2 and 9, the crankshaft device 30 of the present invention comprises a crankcase 31, a crankshaft 32 disposed in the crankcase 31 for cooperating with a piston rod, a flywheel 33 disposed at one end of the crankshaft 32, and a pulley 34 disposed at the other end of the crankshaft 32, wherein one of the two gears 443 is connected to the pulley 34 via a first timing belt 35. In this embodiment, the crankshaft 32 is mainly used for receiving the acting force of the piston rod to convert the up-and-down motion of the piston rod into a rotational motion and output the rotational motion, and the flywheel 33 is installed at the rear of the engine and has a certain weight, and is mainly used for storing energy and inertia outside the power stroke of the engine. When the engine speed increases, the kinetic energy of the flywheel 33 increases, and the kinetic energy is stored by the flywheel 33; when the engine speed decreases, the flywheel 33 releases energy to reduce speed fluctuations during engine operation. In addition, the belt wheel 34 is mainly used for driving other accessories of the engine, specifically, the gear pump is driven to operate through the first synchronous belt 35, so that cooling water in the water tank can flow into the water tank 41 under the action of the gear pump, and the purpose of heat dissipation is achieved.

In the above further embodiment, the present invention provides a water-cooled engine further comprising a heat dissipation fan 50 disposed on the side wall of the water tank 41, wherein the heat dissipation fan 50 comprises a rotatable impeller 51 and a plurality of blades 52 disposed on the impeller 51, and the impeller 51 is connected to the belt wheel 34 through the first synchronous belt 35. Referring to fig. 1 and 3, the pulley 34, the first synchronous belt 35 and the impeller 51 transmit the rotation power of the crankshaft 32 to the impeller 51 to drive the impeller 51 to rotate, and further drive the blades 52 to rotate, so as to accelerate the air flow around the engine, thereby achieving the heat dissipation effect and improving the heat dissipation effect of the engine.

In the above still another embodiment, referring to fig. 3, the present invention further includes a cam shaft 71 disposed on the cylinder head 20 for controlling the opening and closing of the valve, a cam 72 is disposed on the cam shaft 71, and the cam 71 is connected to the pulley 34 through the first timing belt 35.

In the above further embodiment, referring to fig. 2, the water-cooled engine of the present invention further includes a starter motor 60 disposed on the side wall of the water tank 41, and an output shaft of the starter motor 60 is connected to the flywheel 33 through a second synchronous belt. In this embodiment, the engine is started by the starting motor 60, specifically, after the starting motor 60 is powered on, the output shaft rotates, the output shaft drives the flywheel 33 to rotate through the second synchronous belt 36, the flywheel 33 drives the crankshaft 32 to rotate, the crankshaft 32 drives the cam 71 to rotate through the first synchronous belt 35, the cam 71 drives the cam shaft 72 to rotate, the cam shaft 72 drives the piston rod to reciprocate up and down in the cylinder 10 to drive the crankshaft 32 to rotate, and after the crankshaft 32 starts to rotate, the starting motor 60 can be turned off.

In still another embodiment, referring to fig. 1, the water-cooled engine of the present invention further includes a carburetor 80 disposed on the cylinder head 20 for supplying fuel to the combustion chamber. In this embodiment, the carburetor 80 includes a carburetor body, an oil inlet pipe, an air valve post, a first oil needle, and an accelerator rocker arm. The carburetor body is the atomizer body, and it has the atomizing chamber, with the air inlet of atomizing chamber intercommunication, gas outlet, be used for supplying the oil pipe to penetrate the first through-hole of atomizing chamber and be used for supplying the air door post to penetrate the second through-hole of atomizing chamber, wherein, air inlet and air source intercommunication, the air source can adopt the air compressor machine etc. the gas outlet is used for importing the mist after atomizing chamber air and fuel (like alcohol, methyl alcohol, petrol, diesel oil etc.) mixture into engine combustion chamber. The oil inlet pipe and the air door post are preferably arranged horizontally, and penetrate into the atomization cavity through the first through hole and the second through hole respectively at the left side and the right side of the carburetor body, and a first oil needle is further arranged in the air door post. Wherein, the needle point end of first oil needle advances oil pipe towards, and this needle point end is the toper structure, and the needle point end of first oil needle (be located atomizing intracavity promptly and towards the one end that advances oil pipe) can insert to in the oil pipe, and the throttle rocking arm is connected to the other end of first oil needle, and the needle point end of the first oil needle of the axial displacement control of throttle rocking arm accessible regulation first oil needle inserts the degree of depth to advancing oil pipe to the annular space size that forms between the needle point end of control advance oil pipe and first oil needle, thereby control oil output (the speed of producing oil).

The air door post is attached to the inner wall of the atomization cavity, through holes are formed in the air door post along the radial direction, and the through holes are sequentially communicated with the air inlet and the air outlet to form an air path. The oil outlet of the oil inlet pipe positioned in the through hole forms an oil path with the through hole and the gas outlet. Air can enter from the air inlet, pass through the through holes on the damper column and then be discharged from the air outlet. The air door post is also connected with the accelerator rocker, namely the air door post and the first oil needle are controlled by the accelerator rocker, so that the air door post and the first oil needle move in the axial direction of the air door post simultaneously, when the through hole of the air door post is aligned with the air inlet, the air enters the through hole in the largest quantity, and when the through hole of the air door post is staggered with the air inlet, the air enters the through hole in a reduced quantity along with the increase of the staggered area. Correspondingly, the closer the distance between the first oil needle and the oil inlet pipe is, the minimum oil amount enters the through hole, and the farther the distance between the first oil needle and the oil inlet pipe is (until the first oil needle is separated from the oil inlet pipe), the maximum oil amount enters the through hole.

In still another embodiment, the utility model provides a water-cooled engine still includes the exhaust box 90 that sets up on cylinder cap 20 and communicate with the combustion chamber, is provided with air outlet nozzle 93 on the exhaust box 90, and air outlet nozzle 93 passes through the trachea with gas emission to the oil tank. Referring to fig. 1 and 10, the fuel is burned in the combustion chamber, so that the air pressure in the combustion chamber is increased, and the gas in the combustion chamber enters the exhaust box 90 under the action of the air pressure and then flows into the oil tank through the air outlet nozzle 93, so as to generate high pressure in the oil tank.

Further, the above-mentioned exhaust box 90 includes a box 91 and a sound outlet tube 92 communicated with the box 91, a plurality of sequentially communicated reflection channels 911 are provided in the box 91, the reflection channels 911 are used for weakening the gas flow noise, a plurality of through holes 921 are provided on the sound outlet tube 92, and the sound outlet tube 92 is used for discharging the gas flow noise in the box 91. In this embodiment, the flow of the gas exhausted from the combustion chamber is noisy, and the noise energy is attenuated once every time it passes through one reflection path 911, thereby achieving the purpose of reducing the noise. In addition, the sound outlet tube 92 is made of a sound absorbing material to further reduce noise using the principle of a resistive muffler.

What just go up be the utility model discloses a part or preferred embodiment, no matter be characters or the drawing can not consequently restrict the utility model discloses the scope of protection, all with the utility model discloses a holistic thought down, utilize the equivalent structure transform that the contents of the description and the drawing do, or direct/indirect application all includes in other relevant technical field the utility model discloses the within range of protection.

Claims

1. The utility model provides a water-cooled engine, its characterized in that, including the cylinder that is used for supplying piston rod reciprocating motion in it, be used for the cylinder cap of sealed cylinder, be used for the crankshaft device of output power and be used for radiating water cooling plant, the cylinder cap sets up the upper end of cylinder, crankshaft device sets up the lower extreme of cylinder, water cooling plant encircles and establishes on the periphery wall of cylinder, water cooling plant includes the basin, sets up water inlet nozzle and faucet on the basin, be used for with the cooling water in the basin impress extremely the subassembly that draws water in the basin.

2. The water-cooled engine according to claim 1, wherein the water tank is a split water tank, and comprises an upper water tank and a lower water tank, the water inlet nozzle is arranged on the side wall of the lower water tank, and the water outlet nozzle is arranged on the side wall of the upper water tank.

3. The water-cooled engine according to claim 1, wherein the water pumping assembly is a gear pump, a pump chamber for mounting the gear pump and a pump cover for sealing the pump chamber are provided on a side wall of the water tank, the water inlet nozzle is provided on the pump cover, the pump chamber includes a first water passage corresponding to the water inlet nozzle and a second water passage communicating with the water tank, the first water passage and the second water passage are separated by two gears of the gear pump, the two gears are engaged with each other, one of the two gears is connected to an output execution end of the power source, and the two gears are used for pressing water in the first water passage into the second water passage.

4. The water-cooled engine according to claim 3, wherein the crankshaft device comprises a crankcase, a crankshaft arranged in the crankcase and used for being matched with a piston rod, a flywheel arranged at one end of the crankshaft and a belt wheel arranged at the other end of the crankshaft, and one of the two gears is connected with the belt wheel through a first synchronous belt.

5. The water-cooled engine of claim 4, further comprising a heat sink fan disposed on the side wall of the water tub, the heat sink fan including a rotatable impeller and a plurality of blades disposed on the impeller, the impeller being connected to the pulley by the first timing belt.

6. The water-cooled engine of claim 4, further comprising a starter motor disposed on the side wall of the water tank, wherein an output shaft of the starter motor is connected to the flywheel through a second synchronous belt.

7. The water-cooled engine according to claim 4, further comprising a camshaft provided on the cylinder head for controlling opening and closing of a valve, the camshaft being provided with a cam, the cam being connected to the pulley through the first timing belt.

8. The water-cooled engine of claim 1, wherein a combustion chamber is disposed between the cylinder head and the bore, the water-cooled engine further comprising a carburetor disposed on the cylinder head for supplying fuel to the combustion chamber.

9. The water-cooled engine of claim 8, further comprising an exhaust box disposed on the cylinder head and in communication with the combustion chamber, wherein an outlet nozzle is disposed on the exhaust box, and the outlet nozzle discharges gas to the oil tank through a gas pipe.

10. The water-cooled engine according to claim 9, wherein the exhaust box comprises a box body and a sound outlet pipe communicated with the box body, a plurality of sequentially communicated reflection channels are arranged in the box body, the reflection channels are used for weakening gas flow noise, and a plurality of through holes are arranged on the sound outlet pipe.