阅读说明：本技术 一种带有强制冷却风道的小型通用汽油机曲轴箱 (Small-size general gasoline engine crankcase with forced cooling air duct ) 是由 周永明 于 2019-09-06 设计创作，主要内容包括：本发明公开了一种带有强制冷却风道的小型通用汽油机曲轴箱,包括曲轴箱所述曲轴箱外壁右侧的顶部通过出气管连通有空气滤清器,所述曲轴箱的顶部通过进气管与空气滤清器相连通,所述出气管靠近空气滤清器一侧外壁的底部固定安装有化油器,化油器的输出端与曲轴箱相连通,所述曲轴箱的底部通过四个缓冲座固定连接有支架,缓冲座包括壳体,所述壳体内壁的底部固定连接有底板,本发明涉及曲轴箱技术领域。该带有强制冷却风道的小型通用汽油机曲轴箱,通过设置有散热片和冷却管,实现了对曲轴箱进行有效的散热与冷却,通过喷头将冷却风均匀分散到散热片上,使得散热片的散热效果大大提升,延长了汽油机的使用寿命。(The invention discloses a small-sized general gasoline engine crankcase with a forced cooling air channel, which comprises a crankcase, wherein the top of the right side of the outer wall of the crankcase is communicated with an air filter through an air outlet pipe, the top of the crankcase is communicated with the air filter through an air inlet pipe, the bottom of the outer wall of the air outlet pipe, which is close to the air filter, is fixedly provided with a carburetor, the output end of the carburetor is communicated with the crankcase, the bottom of the crankcase is fixedly connected with a support through four buffer seats, each buffer seat comprises a shell, and the bottom of the inner wall of the shell is fixedly connected with a bottom plate. This small-size general gasoline engine crankcase with forced cooling air duct through being provided with fin and cooling tube, has realized carrying out effectual heat dissipation and cooling to the crankcase, through the shower nozzle with cooling air homodisperse to the fin on for the radiating effect of fin promotes greatly, has prolonged the life of gasoline engine.)

1. The utility model provides a small-size general gasoline engine crankcase with forced cooling wind channel, includes crankcase (1) the top on crankcase (1) outer wall right side has air cleaner (4) through outlet duct (2) intercommunication, the top of crankcase (1) is linked together with air cleaner (4) through intake pipe (3), the bottom fixed mounting that outlet duct (2) are close to air cleaner (4) one side outer wall has carburetor (5), the output and crankcase (1) of carburetor (5) are linked together, its characterized in that: the bottom of the crankcase (1) is fixedly connected with a support (7) through four buffering seats (6), each buffering seat (6) comprises a shell (8), the bottom of the inner wall of the shell (8) is fixedly connected with a bottom plate (9), a buffering groove (10) is formed in the middle of the top wall of the bottom plate (9), a guide rod (11) is movably connected in the buffering groove (10), a buffering spring (12) is sleeved on the outer wall of the guide rod (11), a fixing plate (13) is fixedly connected to the top end of the guide rod (11), the fixing plate (13) is fixedly connected to the bottom of the crankcase (1), a plurality of radiating fins (14) distributed along the horizontal direction are fixedly connected to the left side and the right side of the crankcase (1), a cooling pipe (15) is sleeved outside the radiating fins (14), and the cooling pipe (15) comprises a main pipeline (16) distributed along the horizontal direction, run through on the outer wall of trunk line (16) and have three small transfer line (17), it is three small transfer line (17) are parallel to each other, and three small transfer line (17) all set up to the semicircular structure, the both ends of small transfer line (17) outer wall inboard all communicate there are three shower nozzle (18), the top of four branch (19) fixed connection in support (7) of passing through of cooling tube (15) bottom.

2. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: the four buffer seats (6) are distributed in a rectangular array, and the four buffer seats (6) are perpendicular to the bottom of the crankcase (1).

3. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: the shell (8) is of a cylindrical structure, the buffer spring (12) is embedded in the shell (8), and the diameter of the inner wall of the shell (8) is smaller than that of the fixing plate (13).

4. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: the bottom end of the buffer spring (12) is fixedly connected to the top of the bottom plate (9), and the top end of the buffer spring (12) is fixedly connected with the bottom of the fixing plate (13).

5. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: the radiating fins (14) are distributed in a rectangular array.

6. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: one end of the main pipeline (16) is closed, and the other end of the main pipeline (16) is communicated with the pump body.

7. The small-sized general purpose gasoline engine crankcase with the forced cooling air duct according to claim 1, characterized in that: the three branch pipelines (17) are uniformly distributed at equal intervals, and the branch pipelines (17) are of a symmetrical structure.

Technical Field

The invention relates to the technical field of crank cases, in particular to a small-sized universal gasoline engine crank case with a forced cooling air duct.

Background

The lower part of the cylinder block is used for installing a crankshaft and is called a crankcase, the crankcase is divided into an upper crankcase and a lower crankcase, the upper crankcase and the cylinder block are cast into a whole, the lower crankcase is used for storing lubricating oil and closing the upper crankcase, so the crankcase is also called an oil pan drawing, the stress of the oil pan is small, the oil pan is generally formed by stamping a thin steel plate, the shape of the oil pan depends on the overall arrangement of an engine and the capacity of the lubricating oil, an oil stabilizing baffle plate is arranged in the oil pan to prevent the oil surface from fluctuating too much when an automobile is overturned, an oil drain plug is also arranged at the bottom of the oil pan, a permanent magnet is usually arranged on the oil drain plug to adsorb metal chips in the lubricating oil and reduce the.

The chinese patent discloses a general gasoline engine crankcase body (publication number CN109578160A) with forced cooling wind channel, this patent discloses a general gasoline engine crankcase body with forced cooling wind channel, belong to the engine field, it is provided with multilayer heat dissipation fin to encircle from its bottom to top on the outer wall of cylinder block, a plurality of heat dissipation fins are along the air inlet, the air intake has been seted up to the air-out direction, the air outlet, heat dissipation fin fluting between air intake and the air outlet forms interior cooling wind channel, the outside edge adduction of a plurality of heat dissipation fins of air inlet to air-out direction forms outer cooling wind channel. According to the invention, the two inner cooling air channels and the two outer cooling air channels are arranged on the radiating fins on the outer wall of the cylinder body, so that the total cooling area is increased, the radiating efficiency is improved, the engine is ensured to run under a good thermal load working condition, and the service life of the engine is prolonged.

Present gasoline engine crankcase, it is mainly through set up the heat dissipation muscle even as an organic whole with the box on cylinder block outer wall, combine cold wind to reduce the temperature of combustion chamber through the heat dissipation muscle, the heat dissipation muscle generally encircles cylinder block outer wall and distributes, and from the bottom of cylinder block outer wall to the opening equipartition multilayer heat dissipation muscle at top, blow the temperature that cools off the combustion chamber through the gap between the adjacent two-layer heat dissipation muscle of cold wind, but the outer wall of cylinder block is than for the thickness, the radiating effect is not good enough, it is too high to take place the combustion chamber temperature easily, can direct influence the power of engine or often break down, and the service life is prolonged.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a small-sized universal gasoline engine crankcase with a forced cooling air channel, which solves the problem that the service life of the existing gasoline engine crankcase is shortened because the outer wall of an air cylinder body is provided with heat dissipation ribs which are connected with the crankcase into a whole, the temperature of a combustion chamber is reduced by combining cold air through the heat dissipation ribs, the heat dissipation ribs are generally distributed around the outer wall of the air cylinder body, a plurality of layers of heat dissipation ribs are distributed from the bottom to the top of the outer wall of the air cylinder body, and the temperature of the combustion chamber is cooled by blowing the cold air through gaps between two adjacent layers of heat dissipation ribs, but the outer wall of the air cylinder body is thick and has poor heat dissipation effect, the temperature of the combustion chamber is easy to be overhigh, the power of an engine.

In order to achieve the purpose, the invention is realized by the following technical scheme: a small-sized universal gasoline engine crankcase with a forced cooling air channel comprises a crankcase, wherein the top on the right side of the outer wall of the crankcase is communicated with an air filter through an air outlet pipe, the top of the crankcase is communicated with the air filter through an air inlet pipe, a carburetor is fixedly mounted at the bottom of the air outlet pipe close to the outer wall of one side of the air filter, the output end of the carburetor is communicated with the crankcase, the bottom of the crankcase is fixedly connected with a support through four buffer seats, each buffer seat comprises a shell, the bottom of the inner wall of the shell is fixedly connected with a bottom plate, a buffer groove is formed in the middle of the top wall of the bottom plate, a guide rod is movably connected into the buffer groove, a buffer spring is sleeved on the outer wall of the guide rod, a fixing plate is fixedly connected to the, The equal fixedly connected with in right side a plurality of fin that distribute along the horizontal direction, the outside cover of fin bottom side is equipped with the cooling tube, the cooling tube includes the trunk line that distributes along the horizontal direction, it has three small transfer line, three to run through on the outer wall of trunk line the small transfer line is parallel to each other, and three small transfer line all sets up to semi-annular structure, the both ends of small transfer line outer wall inboard all communicate there is three shower nozzle, the top at the support through four branch fixed connection of cooling tube bottom.

Preferably, four the cushion socket is the distribution of rectangle array, and four cushion sockets all are perpendicular to the bottom of crankcase.

Preferably, the housing is provided with a cylindrical structure, the buffer spring is embedded in the housing, and the diameter of the inner wall of the housing is smaller than that of the fixing plate.

Preferably, the bottom end of the buffer spring is fixedly connected to the top of the bottom plate, and the top end of the buffer spring is fixedly connected to the bottom of the fixing plate.

Preferably, a plurality of the radiating fins are distributed in a rectangular array.

preferably, one end of the main pipeline is closed, and the other end of the main pipeline is communicated with the pump body.

Preferably, the three branch pipelines are uniformly distributed at equal intervals and are of symmetrical structures.

Advantageous effects

The invention provides a small-sized universal gasoline engine crankcase with a forced cooling air duct. Compared with the prior art, the method has the following beneficial effects:

(1) The small-sized universal gasoline engine crankcase with the forced cooling air channel is provided with the radiating fins and the cooling pipes, the left side and the right side of the crankcase are fixedly connected with a plurality of radiating fins distributed along the horizontal direction, the cooling pipes are sleeved outside the bottom sides of the radiating fins and comprise main pipes distributed along the horizontal direction, three branch pipes penetrate through the outer wall of the main pipe and are parallel to each other, the three branch pipes are all arranged into a semi-annular structure, three spray heads are communicated with two ends of the inner side of the outer wall of each branch pipe, the bottom of each cooling pipe is fixedly connected to the top of the support through four support rods, effective radiating and cooling of the crankcase are realized, cooling air is uniformly dispersed onto the radiating fins through the spray heads, the radiating effect of the radiating fins is greatly improved, the radiating effect of the crankcase is ensured, and poor radiating effect caused by the thick outer wall of the cylinder body is avoided, the temperature of the combustion chamber is not too high, and the service life of the gasoline engine is prolonged.

(2) this small-size general gasoline engine crankcase with forced cooling air duct, through being provided with the buffer seat, the buffer seat includes the casing, shells inner wall's bottom fixedly connected with bottom plate, the dashpot has been seted up at the middle part of bottom plate roof, and swing joint has the guide bar in the dashpot, the cover is equipped with buffer spring on the outer wall of guide bar, the top fixedly connected with fixed plate of guide bar, fixed plate fixed connection is in the bottom of crankcase, realized buffering and antidetonation processing to the crankcase, the shock resistance in the crankcase working process has been improved greatly, avoided rocking and produced certain influence to the gasoline engine, the fault rate of gasoline engine has been reduced, the work efficiency of gasoline engine has been guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a buffer seat according to the present invention;

Fig. 3 is a schematic structural view of the cooling pipe of the present invention.

In the figure: 1-crankcase, 2-air outlet pipe, 3-air inlet pipe, 4-air filter, 5-carburetor, 6-buffer seat, 7-support, 8-shell, 9-bottom plate, 10-buffer groove, 11-guide bar, 12-buffer spring, 13-fixing plate, 14-radiating fin, 15-cooling pipe, 16-main pipe, 17-branch pipe, 18-spray head and 19-support rod.

Detailed Description

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a small-sized universal gasoline engine crankcase with a forced cooling air channel comprises a crankcase 1, an air filter 4 is communicated with the top on the right side of the outer wall of the crankcase 1 through an air outlet pipe 2, the top of the crankcase 1 is communicated with the air filter 4 through an air inlet pipe 3, a carburetor 5 is fixedly installed at the bottom of the air outlet pipe 2 close to the outer wall of one side of the air filter 4, the output end of the carburetor 5 is communicated with the crankcase 1, the bottom of the crankcase 1 is fixedly connected with a support 7 through four buffer seats 6, the four buffer seats 6 are distributed in a rectangular array, the four buffer seats 6 are all vertical to the bottom of the crankcase 1, each buffer seat 6 comprises a shell 8, the bottom of the inner wall of each shell 8 is fixedly connected with a bottom plate 9, a buffer groove 10 is formed in the middle of the top wall of the bottom plate 9, a, the top fixedly connected with fixed plate 13 of guide bar 11, casing 8 sets up to tubular structure, buffer spring 12 inlays and establishes in the inside of casing 8, the diameter of casing 8 inner wall is less than the diameter of fixed plate 13, buffer spring 12's bottom fixed connection is at the top of bottom plate 9, buffer spring 12's top and fixed plate 13's bottom fixed connection, fixed plate 13 fixed connection is in the bottom of crankcase 1, the left and right both sides of crankcase 1 all fixedly connected with a plurality of fin 14 that distribute along the horizontal direction, a plurality of fin 14 are the rectangular array and distribute, the outside cover of fin 14 bottom side is equipped with cooling tube 15, cooling tube 15 includes main pipeline 16 that distributes along the horizontal direction, the one end of main pipeline 16 is sealed, the other end and the pump body of main pipeline 16 are linked together, three tributary pipe 17 has run through on main pipeline 16's the outer wall, three tributary pipe 17 are parallel to each other, and three tribut, the three branch pipelines 17 are uniformly distributed at equal intervals, the branch pipelines 17 are of a symmetrical structure, the two ends of the inner side of the outer wall of each branch pipeline 17 are communicated with three spray heads 18, the bottom of each cooling pipe 15 is fixedly connected to the top of each support 7 through four support rods 19, effective heat dissipation and cooling of the crankcase 1 are realized by arranging the cooling fins 14 and the cooling pipes 15, cooling air is uniformly dispersed onto the cooling fins 14 through the spray heads 18, the heat dissipation effect of the cooling fins 14 is greatly improved, the heat dissipation effect of the crankcase 1 is ensured, poor heat dissipation effect caused by the thick outer wall of the cylinder body is avoided, the temperature of a combustion chamber is not too high, the service life of the gasoline engine is prolonged, buffering and anti-seismic treatment of the crankcase 1 are realized by arranging the buffer seat 6, the anti-seismic performance of the crankcase 1 in the working process is greatly improved, and certain influence of shaking on the gasoline engine is, the fault rate of the gasoline engine is reduced, and the working efficiency of the gasoline engine is ensured.

The during operation, the gasoline engine is carrying out the during operation, at first operating personnel is through starting the air pump, air pump output cooling air passes through trunk line 16 dispersion and advances the small transfer line 17, and through shower nozzle 18 on the small transfer line 17, send the cooling air on the fin 14, the fin 14 with the cooling air homodisperse to the gasoline engine main part, realize the uniform heat dissipation, multilayer fin 14 realizes dispelling the heat fast through the cooling air, the radiating efficiency is improved, the gasoline engine is carrying out the during operation, the bottom is provided with buffer seat 6, can realize through buffer spring 12 that guide bar 11 removes along dashpot 10, accomplish the buffering antidetonation.

A small-sized universal gasoline engine crankcase with a forced cooling air channel comprises a crankcase 1, wherein the top on the right side of the outer wall of the crankcase 1 is communicated with an air filter 4 through an air outlet pipe 2, the top of the crankcase 1 is communicated with the air filter 4 through an air inlet pipe 3, the bottom of the air outlet pipe 2, which is close to the outer wall of one side of the air filter 4, is fixedly provided with a carburetor 5, the output end of the carburetor 5 is communicated with the crankcase 1, the bottom of the crankcase 1 is fixedly connected with a support 7 through four buffer seats 6, each buffer seat 6 comprises a shell 8, the bottom of the inner wall of the shell 8 is fixedly connected with a bottom plate 9, the middle part of the top wall of the bottom plate 9 is provided with a buffer groove 10, a guide rod 11 is movably connected in the buffer groove 10, the outer wall of the guide rod, the left side and the right side of the crankcase 1 are fixedly connected with a plurality of radiating fins 14 distributed along the horizontal direction, the outside of the bottom side of each radiating fin 14 is sleeved with a cooling pipe 15, each cooling pipe 15 comprises a main pipe 16 distributed along the horizontal direction, three branch pipes 17 penetrate through the outer wall of the main pipe 16, the three branch pipes 17 are parallel to each other, the three branch pipes 17 are all arranged in a semi-annular structure, three spray heads 18 are communicated with two ends of the inner side of the outer wall of each branch pipe 17, the bottom of each cooling pipe 15 is fixedly connected to the top of the support 7 through four support rods 19, the radiating fins 14 and the cooling pipes 15 are arranged, effective radiating and cooling of the crankcase 1 are achieved, cooling air is uniformly dispersed on the radiating fins 14 through the spray heads 18, the radiating effect of the radiating fins 14 is greatly improved, the radiating effect of the crankcase 1 is guaranteed, and the radiating effect caused by the thick outer wall, make the combustion chamber temperature can not be too high, prolonged the life of gasoline engine, through being provided with buffer seat 6, realized the buffering and the antidetonation processing to crankcase 1, improved the shock resistance in the 1 working process of crankcase greatly, avoided rocking and produced certain influence to the gasoline engine, reduced the fault rate of gasoline engine, guaranteed the work efficiency of gasoline engine.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.