CN217546658U - Plough quick-witted belt pulley heat radiation structure a little - Google Patents

Abstract

The utility model provides a quick-witted belt pulley heat radiation structure is ploughed a little, including first housing, belt pulley drive assembly, second housing, mounting disc and polylith flabellum. This quick-witted belt pulley heat radiation structure is ploughed a little utilizes the high-speed rotation from the driving wheel, and the air current that the flabellum produced can wholly cool off belt pulley drive assembly to, take away the heat that produces when the belt transmission through the louvre unit on the second housing, thereby carry out effectual initiative cooling and heat dissipation to the belt, improved the transmission efficiency of belt, prolonged the life of belt, reduced the high temperature resistance requirement for quality of belt, and can effectively reduce the belt cost, improve complete machine quality and complete machine competitiveness.

Description

Plough quick-witted belt pulley heat radiation structure a little

Technical Field

The utility model relates to a plough quick-witted technical field a little, concretely relates to plough quick-witted belt pulley heat radiation structure a little.

Background

The mini-tiller is widely applicable to dry land, paddy field, orchard and the like in plains, mountainous areas and hills, can be freely operated in the field, is convenient for users to use and store, saves the trouble that large agricultural machinery cannot enter mountainous area fields, takes a small diesel engine or a gasoline engine as power, and has the characteristics of light weight, small size, simple structure and the like.

The power that ploughs machine engine a little produced generally is through the transmission of belt drive assembly, and at present, traditional belt drive assembly is because have inside and outside guard shield, can't be timely and the heat that produces when lasting belt drive dispels the heat fast, like this, will make the belt be in the higher running state of temperature all the time, leads to the transmission efficiency of belt to reduce easily, also reduces the life of belt by a wide margin, has proposed high requirement to the belt quality like this. Although some heat dissipation holes are formed in the conventional inner and outer shields, the purpose of actively dissipating heat and cooling the belt and the whole belt transmission assembly cannot be achieved.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a machine belt pulley heat radiation structure is ploughed a little to the realization carries out effectual initiative cooling and heat dissipation to the belt, improves the transmission efficiency of belt.

In order to achieve the purpose, the utility model provides a mini-tiller belt pulley heat dissipation structure, which comprises a first housing; a pulley drive assembly disposed within the first housing, the pulley drive assembly having a driven wheel; the second housing is buckled on the first housing, and a plurality of groups of heat dissipation hole units are arranged on the second housing; the mounting disc is detachably arranged on the driven wheel, and a plurality of air guide holes penetrate through the mounting disc; and the fan blades are arranged on one side, facing the second housing, of the mounting disc.

Preferably, the fan blade is obliquely arranged on one side of the air guide hole, and a windward side is formed on one side of the fan blade close to the air guide hole.

Preferably, the included angle between the windward side and the mounting disc is an acute angle.

Preferably, the number of the air guide holes corresponds to the number of the fan blades, and the fan blades and the mounting plate are of an integral structure.

Preferably, first housing includes the backplate, and sets up upper junction plate, left connecting plate, lower connecting plate and the right connecting plate that just connects gradually on the backplate, the connecting plate includes plate body, first left side plate body and first right side plate body down, first left side plate body is connected respectively down the plate body with left side connecting plate, first right side plate body is connected respectively down the plate body with right side connecting plate, first left side plate body with first right side plate body with the contained angle of plate body all is the obtuse angle down.

Preferably, the upper connecting plate comprises an upper plate body, a second left plate body and a second right plate body, the upper plate body and the lower plate body are oppositely arranged, the second left plate body is respectively connected with the upper plate body and the left connecting plate, the second right plate body is respectively connected with the upper plate body and the right connecting plate, and included angles between the second left plate body and the second right plate body and the upper plate body are obtuse angles.

Preferably, a projection of the heat dissipation hole unit on the first housing is close to a driving wheel of the pulley transmission assembly.

Preferably, the second closure has a recessed reinforcement portion extending in a height direction of the second closure.

Preferably, the heat dissipation hole units are provided with two groups, the two groups of heat dissipation hole units are respectively arranged on two sides of the recessed reinforcing part, and each heat dissipation hole unit comprises a plurality of heat dissipation holes arranged at intervals along the vertical direction.

The utility model has the advantages that:

the utility model discloses a quick-witted belt pulley heat radiation structure is ploughed a little, utilize the high-speed rotation from the driving wheel, the air current that the flabellum produced can wholly cool off belt pulley drive assembly, and, the heat that produces when taking away the belt transmission through the louvre unit on the second housing, thereby carry out effectual active cooling and heat dissipation to the belt, the transmission efficiency of belt has been improved, the life of belt has been prolonged, the high temperature resistance requirement of belt has been reduced, and the belt cost can be effectively reduced, improve complete machine quality and complete machine competitiveness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a belt pulley heat dissipation structure of a mini-tiller according to an embodiment of the present invention;

FIG. 2 is a schematic view of the first housing and pulley drive assembly;

FIG. 3 is a schematic view of the mounting plate;

FIG. 4 is a schematic view of the structure of the mounting plate cooperating with the driven wheel;

fig. 5 is a schematic structural view of the inside of the second housing.

Reference numerals are as follows:

10-a first cover shell, 11-a back plate, 12-an upper connecting plate, 121-an upper plate body, 122-a second left plate body, 123-a second right plate body, 13-a left connecting plate, 14-a lower connecting plate, 141-a lower plate body, 142-a first left plate body, 143-a first right plate body, 15-a right connecting plate;

20-a belt pulley transmission component, 21-a driven wheel, 211-a forming hole, 22-a driving wheel and 23-a belt;

30-second housing, 31-heat dissipation hole unit, 32-recessed reinforcement;

40-mounting plate, 41-air guide hole;

50-fan blade, 51-windward side.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are intended only for the convenience of description of the present invention and for simplicity of description, and are not intended to indicate or imply that the device or element 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.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-5, in an embodiment of the present invention, a heat dissipation structure for a belt 23 pulley of a mini-tiller comprises a first housing 10, a pulley transmission assembly 20, a second housing 30, a mounting plate 40 and a plurality of blades 50.

A pulley transmission assembly 20 is provided in the first housing 10, the pulley transmission assembly 20 including a driven pulley 21, a driving pulley 22, and a belt 23, the driven pulley 21 being disposed below the driving pulley 22. The second housing 30 is fastened to the first housing 10, and a plurality of heat dissipation hole units 31 are disposed on the second housing 30. The mounting plate 40 is detachably disposed on a side of the driven wheel 21 close to the second housing 30, a plurality of air guiding holes 41 penetrate through the mounting plate 40, and a plurality of fan blades 50 are arranged on a side of the mounting plate 40 facing the second housing 30 in an annular array along an axis of the mounting plate 40.

In the heat dissipation structure of the belt 23 wheel of the mini-tiller according to the embodiment, the mounting disc 40 is designed on the driven wheel 21, and the plurality of fan blades 50 are arranged on the mounting disc 40, when the driven wheel 21 rotates at a high speed, the mounting disc 40 rotates along with the driven wheel 21, and the fan blades 50 form an air flow in the first housing 10, so that the belt 23 is cooled. Since the second housing 30 is fastened to the first housing 10 and the second housing 30 is designed with a plurality of heat dissipation hole units 31, the airflow is blocked by the inner walls of the first housing 10 and the second housing 30, and most of the airflow flows to the heat dissipation hole units 31 and finally flows out of the second housing 30 through the heat dissipation hole units 31, so that the heat generated by the transmission of the belt 23 is taken away by the airflow in the flowing process.

Meanwhile, as the mounting plate 40 is provided with the plurality of air guide holes 41, the air flow generated by the rotation of the fan blades 50 can pass through the forming holes 211 of the driven wheel 21 through the air guide holes 41, so that the purpose of radiating the driven wheel 21 can be achieved, and the heat generated during the transmission of the belt 23 is indirectly reduced.

This quick-witted belt 23 wheel heat radiation structure is ploughed a little utilizes the high-speed rotation from driving wheel 21, the air current that flabellum 50 produced can wholly cool off belt pulley drive assembly 20, and, the heat that produces when taking away belt 23 transmission through louvre unit 31 on the second housing 30, thereby carry out effectual initiative cooling and heat dissipation to belt 23, the transmission efficiency of belt 23 has been improved, the life of belt 23 has been prolonged, the high temperature resistance requirement of belt 23 has been reduced, and can effectively reduce belt 23 cost, improve complete machine quality and complete machine competitiveness.

In one embodiment, the fan blade 50 is obliquely disposed on one side of the air guiding hole 41, and a windward side 51 is formed on one side of the fan blade 50 close to the air guiding hole 41. The design can enable the airflow generated by the fan blades 50 to rapidly penetrate through the forming hole 211 of the driven wheel 21 from the air guide hole 41 under the guide effect of the windward side 51, so that the purpose of radiating the driven wheel 21 is achieved, and the heat generated during the transmission of the belt 23 is indirectly reduced.

In one embodiment, the angle between the windward side 51 and the mounting plate 40 is acute, and the design is such that the airflow generated by the fan blades 50 is partially distributed to the airflow guiding holes 41, so as to facilitate the airflow guiding holes 41 to pass through to dissipate heat of the driven wheel 21.

In one embodiment, the number of the air guiding holes 41 corresponds to the number of the fan blades 50, and the fan blades 50 and the mounting plate 40 are integrally formed, so that not only can the manufacturing cost and the material cost be saved, but also the production efficiency can be improved.

In one embodiment, the first housing 10 includes a back plate 11, and an upper connection plate 12, a left connection plate 13, a lower connection plate 14, and a right connection plate 15 that are disposed on the back plate 11 and sequentially connected to each other, the lower connection plate 14 includes a lower plate 141, a first left plate 142, and a first right plate 143, the first left plate 142 is respectively connected to the lower plate 141 and the left connection plate 13, the first right plate 143 is respectively connected to the lower plate 141 and the right connection plate 15, and included angles between the first left plate 142 and the lower plate 141, and included angles between the first right plate 143, and the first left plate 142, and included angles between the first right plate 143, and the lower plate 141, are all obtuse angles.

Because the mounting disc 40 is located in the opening of the lower connecting plate 14, the included angles between the first left side plate body 142 and the first right side plate body 143 and the lower plate body 141 are all obtuse angles, and the design can avoid dead angles at the joints of the first left side plate body 142 and the first right side plate body 143 and the lower plate body 141. Therefore, the airflow generated by the fan blade 50 flows to the middle upper part of the first housing 10 under the guiding action of the lower plate 141, the first left plate 142 and the first right plate 143, so as to continuously dissipate heat of the belt 23 and the driving wheel 22, most of the airflow after heat exchange flows to the heat dissipation hole unit 31, and finally flows out of the second housing 30 from the heat dissipation hole unit 31, in this way, the heat generated by the belt 23 during transmission can be taken away by the airflow in the flowing process, so that the purpose of dissipating heat of the belt 23, the driving wheel 22 and the driven wheel 21 is achieved, and the transmission efficiency of the belt 23 is improved.

In one embodiment, the upper connecting plate 12 includes an upper plate 121, a second left plate 122 and a second right plate 123, the upper plate 121 and the lower plate 141 are arranged opposite to each other, the second left plate 122 is connected to the upper plate 121 and the left connecting plate 13, respectively, the second right plate 123 is connected to the upper plate 121 and the right connecting plate 15, respectively, and the included angles between the second left plate 122 and the upper plate 121 and between the second right plate 123 and the upper plate 121 are obtuse angles. The upper connecting plate 12 has the same principle as the lower connecting plate 14, and also effectively guides the air flow, so that the air flow can be circulated well in the space enclosed by the first housing 10 and the second housing 30, thereby realizing the heat dissipation of the whole belt pulley transmission assembly 20.

In one embodiment, the projection of the louver unit 31 on the first housing 10 is close to the driving wheel 22 of the pulley drive assembly 20. The position design of the heat dissipation hole unit 31 can increase the ground clearance of the heat dissipation hole unit 31, and when the mini-tiller is used, soil and dust can be effectively prevented from entering the first housing 10.

In one embodiment, in order to improve the overall structural strength of the second closure 30, the second closure 30 has a recessed reinforcement portion 32, and the recessed reinforcement portion 32 extends in the height direction of the second closure 30.

In one embodiment, in order to improve the heat dissipation effect, two sets of louver units 31 are provided, the two sets of louver units 31 are respectively disposed at two sides of the recessed reinforcing portion 32, and the louver units 31 include a plurality of louvers arranged at intervals in the vertical direction.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included in the scope of the claims and description of the present invention.

Claims (9)

1. The utility model provides a plough quick-witted belt pulley heat radiation structure a little, its characterized in that: the method comprises the following steps:

a first housing;

a pulley drive assembly disposed within the first housing, the pulley drive assembly having a driven wheel;

the second housing is buckled on the first housing, and a plurality of groups of heat dissipation hole units are arranged on the second housing;

the mounting disc is detachably arranged on the driven wheel, and a plurality of air guide holes penetrate through the mounting disc; and

and the fan blades are arranged on one side, facing the second housing, of the mounting disc.

2. The pulley heat dissipation structure of the mini-tiller according to claim 1, wherein: the fan blades are obliquely arranged on one side of the air guide hole, and a windward side is formed on one side, close to the air guide hole, of the fan blades.

3. The pulley heat dissipation structure of the mini-tiller according to claim 2, wherein: the included angle between the windward side and the mounting disc is an acute angle.

4. The mini-tiller pulley heat dissipation structure as defined in claim 2, wherein: the number of the air guide holes corresponds to that of the fan blades, and the fan blades and the mounting disc are of an integrated structure.

5. The pulley heat dissipation structure of the micro-cultivator according to any one of claims 1 to 4, wherein: first housing includes the backplate, and sets up upper junction plate, left connecting plate, lower connecting plate and the right connecting plate that just connects gradually on the backplate, the connecting plate includes plate body, first left side plate body and first right side plate body down, first left side plate body is connected respectively down the plate body with left side connecting plate, first right side plate body is connected respectively down the plate body with right side connecting plate, first left side plate body with first right side plate body with the contained angle of plate body all is the obtuse angle down.

6. The pulley heat dissipation structure of the micro-cultivator of claim 5, wherein: the upper connecting plate comprises an upper plate body, a second left plate body and a second right plate body, the upper plate body and the lower plate body are arranged oppositely, the second left plate body is connected with the upper plate body and the left connecting plate respectively, the second right plate body is connected with the upper plate body and the right connecting plate respectively, and included angles of the second left plate body and the second right plate body with the upper plate body are obtuse angles.

7. The mini-tiller pulley heat dissipation structure as defined in claim 1, wherein: the projection of the heat dissipation hole unit on the first cover is close to a driving wheel of the belt pulley transmission assembly.

8. The mini-tiller pulley heat dissipation structure as defined in claim 7, wherein: the second cover has a recessed reinforcement portion extending in a height direction of the second cover.

9. The mini-tiller pulley heat dissipation structure as defined in claim 8, wherein: the radiating hole units are arranged in two groups, the two groups of radiating hole units are respectively arranged on two sides of the recessed reinforcing portion, and each radiating hole unit comprises a plurality of radiating holes which are arranged at intervals in the vertical direction.

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