TWI444246B - Two - way cross - flow machine tool - Google Patents
Two - way cross - flow machine tool Download PDFInfo
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- TWI444246B TWI444246B TW100122558A TW100122558A TWI444246B TW I444246 B TWI444246 B TW I444246B TW 100122558 A TW100122558 A TW 100122558A TW 100122558 A TW100122558 A TW 100122558A TW I444246 B TWI444246 B TW I444246B
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Description
本發明有關一種雙向交叉氣流工具機，尤指一種在運轉時於內部產生雙向交叉氣流以進行散熱的工具機。 The invention relates to a two-way cross-flow tool machine, in particular to a machine tool which generates a two-way cross-flow airflow inside during operation for heat dissipation.
目前業界常見的工具機，如研磨機等，可參見中華民國第M261316號、第M288839號專利案所示，上述專利案所揭露的工具機主要均具有一本體，並於本體內設置一馬達及一受馬達驅動而運轉的工具軸，且工具軸設有兩配重塊而使工具軸偏心轉動，該兩配重塊並接設一作動件，因此，馬達啟動後可帶動工具軸偏心轉動，並藉由兩配重塊連動作動件運作，而達到對工件加工的目的；然而，上述工具機運轉時易使馬達產生積熱，造成馬達過熱而影響工具機可否長時間運作，也就是影響工具機的耐用性。 At present, the common machine tools in the industry, such as the grinding machine, can be found in the patents of the Republic of China No. M261316 and No. M288839. The machine tools disclosed in the above patents mainly have a body, and a motor is arranged in the body. a tool shaft driven by a motor, and the tool shaft is provided with two weights to rotate the tool shaft eccentrically, and the two weights are connected with an actuating member, so that the motor shaft can be driven to rotate eccentrically after starting the motor. And the two weights are connected to the action member to achieve the purpose of processing the workpiece; however, when the machine tool is running, the motor generates heat, which causes the motor to overheat and affect the long-term operation of the machine tool, that is, the tool is affected. Machine durability.
因此，另有相關改進技術，如中國第CN2887526號專利案，主要係於工具機的本體上對應馬達的位置設置進氣口與排氣口，使馬達運轉時由進氣口吸引外部氣體並由排氣口排出內部熱氣，藉此對馬達進行散熱，馬達積熱的問題得到了改善，但兩配重塊與作動件在運轉時同樣會產生大量熱能，CN2887526號專利案僅能對馬達進行散熱，引進的氣體無法對兩配重塊進行散熱，且作業時粉塵容易隨著散熱氣體侵入馬達，所以工具機在耐用性上仍有疑慮。 Therefore, there are other related improvement technologies, such as the Chinese Patent No. CN2887526, which mainly sets the intake port and the exhaust port corresponding to the position of the motor on the body of the machine tool, so that the external gas is attracted by the air inlet when the motor is running. The exhaust port discharges the internal hot air, thereby dissipating heat from the motor, and the problem of heat accumulation of the motor is improved, but the two weights and the actuator also generate a large amount of heat during operation, and the CN2887526 patent can only dissipate heat from the motor. The introduced gas cannot dissipate heat from the two weights, and the dust easily invades the motor with the heat-dissipating gas during operation, so the machine tool still has doubts about the durability.
有鑑於此，另有改進技術如中國第CN201611818號專利案所示，該專利案主要是在圓形研磨機對應配重塊的位置設置進氣口，透過配重塊上的風扇將氣體由該進氣口吸入，再將氣體傳送至下方，由圓形研磨機與研磨盤之間的空隙排出，不但可達到散熱效果，亦可避免粉塵侵入馬達。 In view of this, there is another improved technology, as shown in the Chinese Patent No. CN201611818. The patent mainly provides an air inlet at a position corresponding to the weight of the circular grinder, and the gas is passed through the fan on the weight. The air inlet is sucked, and then the gas is sent to the lower side, and is discharged by the gap between the circular grinding machine and the grinding disc, which not only can achieve the heat dissipation effect, but also can prevent the dust from entering the motor.
但是並非所有工具機下方都有空隙可作為熱空氣的出口，例如：方形研磨機(Orbital Sander)，因此，即便可吸入外界冷空氣，仍無法有效將內部熱空氣排出，導致散熱效果不佳的問題。 However, not all tools have a gap underneath as a hot air outlet, such as an Orbital Sander. Therefore, even if the outside air can be inhaled, the internal hot air cannot be effectively discharged, resulting in poor heat dissipation. problem.
本發明的主要目的，在於解決上述的缺失，藉此降低工具機內部溫度，有效進行散熱。 The main object of the present invention is to solve the above-mentioned deficiencies, thereby reducing the internal temperature of the machine tool and effectively dissipating heat.
為達上述目的，本發明提出一種雙向交叉氣流工具機，包括有一工具機以及一散熱體，該工具機於兩側皆設有呈上下配置的進氣口與排氣口，並設有一容置空間以容置一工具軸，其中，該工具軸設有一配重體，該配重體具有上下配置的一第一配重部與一第二配重部，使該工具軸相對該工具機產生一偏心轉動行程；而該散熱體係設置於該配重體並與該工具軸同步轉動，且具有一設置於該第一配重部的第一扇葉部，以及一設置於該第二配重部的第二扇葉部，令該第一扇葉部於該工具軸的轉動行程中由該工具機一側的進氣口吸入氣體，且氣體由該第一扇葉部傳導至該第一配重部與該第二配重部，並藉該第二扇葉部朝該工具機另一側的排氣口排出，而形成交叉散熱氣流。 In order to achieve the above object, the present invention provides a two-way cross-flow tool, including a machine tool and a heat dissipating body. The machine tool is provided with air inlets and exhaust ports arranged on the upper and lower sides, and is provided with an accommodation. a space for accommodating a tool shaft, wherein the tool shaft is provided with a weight body having a first weight portion and a second weight portion disposed above and below, so that the tool shaft is generated relative to the machine tool An eccentric rotation stroke; the heat dissipation system is disposed on the weight body and rotates synchronously with the tool shaft, and has a first blade portion disposed on the first weight portion, and a second weight portion disposed on the second weight portion a second blade portion of the portion, wherein the first blade portion is inhaled by the air inlet of the machine tool during the rotation stroke of the tool shaft, and the gas is conducted from the first blade portion to the first portion The weight portion and the second weight portion are discharged from the exhaust port on the other side of the machine tool by the second blade portion to form a cross heat dissipation airflow.
本發明的具體實施態樣中，該第一扇葉部具有設置於該第一配重部外側的複數進氣扇葉，該些進氣扇葉外緣為弧狀，藉以將氣體由該第一配重部傳送至該第二配重部。該第二扇葉部具有配置於該第二配重部外側的複數排氣扇葉，該些排氣扇葉為平板狀，藉以將氣體由該第二配重塊傳送至該排氣口。該第一扇葉部與該第二扇葉部分別設有結合定位的一第一結合部與一第二結合部。該第一結合部與該第二結合部分別為凹槽與凸塊。該第一扇葉部的高度等於該進氣口的高度，而該第二扇葉部的高度等於該排氣口的高度。 In a specific embodiment of the present invention, the first blade portion has a plurality of inlet fan blades disposed outside the first weight portion, and the outer edges of the inlet fan blades are arcuate, thereby using the gas A weight is transmitted to the second weight. The second blade portion has a plurality of exhaust blades disposed outside the second weight portion, and the exhaust blades are in a flat shape, thereby transferring gas from the second weight to the exhaust port. The first blade portion and the second blade portion are respectively provided with a first joint portion and a second joint portion which are combined and positioned. The first joint portion and the second joint portion are grooves and bumps, respectively. The height of the first blade portion is equal to the height of the air inlet, and the height of the second blade portion is equal to the height of the air outlet.
10‧‧‧工具機 10‧‧‧Tool machine
11‧‧‧容置空間 11‧‧‧ accommodating space
12‧‧‧進氣口 12‧‧‧air inlet
13‧‧‧排氣口 13‧‧‧Exhaust port
14‧‧‧加工件 14‧‧‧Processing parts
20‧‧‧工具軸 20‧‧‧Tool axis
21‧‧‧配重體 21‧‧‧weights
211‧‧‧第一配重部 211‧‧‧First Counterweight
212‧‧‧第二配重部 212‧‧‧Second Counterweight
30‧‧‧散熱體 30‧‧‧ Heat sink
31‧‧‧第一扇葉部 31‧‧‧First leaf
311‧‧‧進氣扇葉 311‧‧‧Intake fan blades
312‧‧‧第一結合部 312‧‧‧ first joint
32‧‧‧第二扇葉部 32‧‧‧Second leaf
321‧‧‧排氣扇葉 321‧‧‧Exhaust fan blades
322‧‧‧第二結合部 322‧‧‧Second junction
圖1，為本發明的結構分解示意圖(一)。 Fig. 1 is a schematic exploded view of the structure of the present invention (1).
圖2，為本發明的結構分解示意圖(二)。 Figure 2 is a schematic exploded view of the structure of the present invention (2).
圖3-1至圖3-2，為本發明較佳實施例的使用狀態示意圖。 3-1 to 3-2 are schematic diagrams showing a state of use according to a preferred embodiment of the present invention.
有關本發明的詳細說明及技術內容，現就配合圖式說明如下：請參閱「圖1及圖2」所示，本發明係為一種雙向交叉氣流工具機，主要包括有一工具機10以及一散熱體30，其中，該工具機10可為電動工具或者為氣動工具，其內部具有一容置空間11，用以容置一工具軸20，該工具軸20係連結於一驅動裝置(圖中未示)，如馬達，以驅動該工具軸20轉動，而該工具軸20下方設有一配重體21，該配重體21具有呈上下配置的一第一配重部211與一第二配重部212，如圖中所示，該第一配重部211係設置於該第二配重部212的下方，透過該配重體21的設置，使該工具軸20可相對該工具機10產生一偏心轉動行程，此外，該工具機10下方為矩形以接設一矩形的加工件14，且該工具機10於兩側皆設有進氣口12與排氣口13，進氣口12與排氣口13係呈上下配置，在本發明的較佳實施例中，該進氣口12係設置於該排氣口13的下方。 The detailed description and technical content of the present invention will now be described with reference to the following drawings: Referring to FIG. 1 and FIG. 2, the present invention is a two-way cross-flow air tool, which mainly includes a power tool 10 and a heat dissipation. The machine tool 10 can be a power tool or a pneumatic tool, and has an accommodating space 11 therein for accommodating a tool shaft 20 coupled to a driving device (not shown) For example, a motor is used to drive the tool shaft 20 to rotate, and a weight body 21 is disposed under the tool shaft 20. The weight body 21 has a first weight portion 211 and a second weight arranged in a vertical arrangement. The first weight portion 211 is disposed below the second weight portion 212, and the tool shaft 20 is generated relative to the power tool 10 through the arrangement of the weight body 21. An eccentric rotation stroke, in addition, a lower rectangular shape of the machine tool 10 is connected to a rectangular workpiece 14 , and the machine tool 10 is provided with an air inlet 12 and an exhaust port 13 on both sides, and the air inlet 12 and The exhaust port 13 is disposed above and below, and in the preferred embodiment of the present invention, the air inlet 12 It is disposed below the exhaust port 13.
而本發明所揭示的散熱體30係設置於該配重體21，而可與該工具軸20同步產生偏心轉動行程，其中，該散熱體30具有一設置於該第一配重部211的第一扇葉部31，以及一設置於該第二配重部212的第二扇葉部32，該第一扇葉部31與該第二扇葉部32分別設有結合定位的一第一結合部312與一第二結合部322，如圖中所示，該第一結合部312與該第二結合部322分別為凹槽與凸塊；此外，該第一扇葉部31的高度等於該進氣口12的高度，並具有設置於該第一配重部211外側的複數進氣扇葉311，且該些進氣扇葉311外緣為弧狀， 而該第二扇葉部32的高度等於該排氣口13的高度，並具有配置於該第二配重部212外側的複數排氣扇葉321，該些排氣扇葉321為平板狀，如是構成本發明的主要架構。 The heat dissipating body 30 of the present invention is disposed on the weight body 21, and can generate an eccentric rotation stroke in synchronization with the tool shaft 20. The heat dissipating body 30 has a first portion disposed on the first weight portion 211. a leaf portion 31 and a second blade portion 32 disposed on the second weight portion 212. The first blade portion 31 and the second blade portion 32 are respectively provided with a first combination of combined positioning a portion 312 and a second joint portion 322, as shown in the figure, the first joint portion 312 and the second joint portion 322 are respectively a groove and a bump; in addition, the height of the first blade portion 31 is equal to the The height of the air inlet 12 has a plurality of air intake blades 311 disposed outside the first weight portion 211, and the outer edges of the air intake blades 311 are arc-shaped. The height of the second blade portion 32 is equal to the height of the exhaust port 13 and has a plurality of exhaust blades 321 disposed outside the second weight portion 212. The exhaust blades 321 are flat. As is the main structure constituting the present invention.
另請參閱「圖3-1至圖3-2」所示，當該工具機10運轉時，該工具軸20將帶動該第一配重部211與該第二配重部212旋轉，使該第一扇葉部31與該第二扇葉部32隨之轉動，由於該第一扇葉部31的進氣扇葉311外緣呈弧形設計，因此，該第一扇葉部31轉動時會將外界冷空氣由圖式中右側下方的進氣口12吸入，並將空氣傳送至溫度最高的該配重體21，以吸收該配重體21的熱量；由於該第二扇葉部32的排氣扇葉321為平面，且寬度由排氣扇葉321的內緣朝外緣縮短，造成排氣扇葉321外緣的位移速度快於內緣的位移速度，使得外緣區域的空氣流動速度大於內緣區域的空氣流動速度，根據「柏努利效應"(Bernoulli Effect)」，空氣流動速度較快的區域，其壓力小於空氣流動速度較慢的區域，因此，該第二扇葉部32可將已吸收該配重體21熱量的熱空氣，經由圖式中左側上方的排氣口13排出(如圖3-1所示)；同時，外界冷空氣也由圖式中左側下方的進氣口12，被該第一扇葉部31吸入，經過該配重體21成為熱空氣後，再被該第二扇葉部32由圖式中右側上方的排氣口13排出，如此一來，便形成了X形的雙向交叉氣流，持續不斷的將冷空氣吸入，並將熱空氣排出(如圖3-2所示)。 Please refer to FIG. 3-1 to FIG. 3-2. When the power tool 10 is in operation, the tool shaft 20 will rotate the first weight portion 211 and the second weight portion 212 to make the The first blade portion 31 and the second blade portion 32 rotate accordingly. Since the outer edge of the inlet fan blade 311 of the first blade portion 31 is curved, the first blade portion 31 rotates. The outside cold air is taken in by the air inlet 12 at the lower right side in the drawing, and the air is sent to the weight body 21 having the highest temperature to absorb the heat of the weight body 21; since the second blade portion 32 The exhaust fan blade 321 is flat, and the width is shortened by the inner edge of the exhaust fan blade 321 toward the outer edge, so that the displacement speed of the outer edge of the exhaust fan blade 321 is faster than the displacement speed of the inner edge, so that the air in the outer edge region The flow velocity is greater than the air flow velocity in the inner edge region. According to the "Bernoulli Effect", the region where the air flows faster is lower than the region where the air flow velocity is slower. Therefore, the second blade The portion 32 can discharge the hot air that has absorbed the heat of the weight body 21 through the exhaust port 13 on the upper left side of the drawing (eg Figure 3-1); at the same time, the outside cold air is also sucked by the first fan blade portion 31 from the air intake port 12 at the lower left side in the drawing, and after the weight body 21 becomes hot air, The second blade portion 32 is discharged from the exhaust port 13 on the upper right side of the drawing, so that an X-shaped two-way cross airflow is formed, continuously sucking in the cold air, and discharging the hot air (Fig. 3) -2)).
綜上所述，本發明主要是於該工具機10的兩側皆設有呈上下配置的進氣口12與排氣口13，並於該第一配重部211與該該第二配重部212設置第一扇葉部31以及第二扇葉部32，使該第一扇葉部31於該工具軸20的轉動行程中由該工具機10一側的進氣口12吸入氣體，且氣體由該第一扇葉部31傳導至該第一配重部211與該第二配重部212，並藉該第二扇葉部32朝該工具機10另一側的排氣口13 排出，而形成交叉散熱氣流，如此不斷的持續運作，可形成了一個有效的散熱系統，並且又能防止該工具機10作業時所產生的粉塵侵入該工具機10的馬達或控制電路中而對工具造成傷害。 In summary, the present invention mainly provides an air inlet 12 and an exhaust port 13 disposed on the two sides of the machine tool 10, and the first weight portion 211 and the second weight. The first blade portion 31 and the second blade portion 32 are disposed such that the first blade portion 31 draws in gas from the air inlet 12 on the machine tool 10 side during the rotation stroke of the tool shaft 20, and The gas is conducted from the first blade portion 31 to the first weight portion 211 and the second weight portion 212, and the second blade portion 32 faces the exhaust port 13 on the other side of the machine tool 10. Discharging, forming a cross-cooling airflow, so continuous operation, an effective heat dissipation system can be formed, and dust generated during operation of the power tool 10 can be prevented from intruding into the motor or control circuit of the machine tool 10, The tool caused damage.
上述僅為本發明的較佳實施例而已，並非用來限定本發明的實施範圍，即凡依本發明申請專利範圍的內容所為的等效變化與修飾，皆應為本發明的技術範疇。 The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalent variations and modifications of the scope of the present invention are intended to be within the technical scope of the present invention.
10‧‧‧工具機 10‧‧‧Tool machine
12‧‧‧進氣口 12‧‧‧air inlet
13‧‧‧排氣口 13‧‧‧Exhaust port
14‧‧‧加工件 14‧‧‧Processing parts
20‧‧‧工具軸 20‧‧‧Tool axis
212‧‧‧第二配重部 212‧‧‧Second Counterweight
31‧‧‧第一扇葉部 31‧‧‧First leaf
32‧‧‧第二扇葉部 32‧‧‧Second leaf
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100122558A TWI444246B (en) | 2011-06-28 | 2011-06-28 | Two - way cross - flow machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100122558A TWI444246B (en) | 2011-06-28 | 2011-06-28 | Two - way cross - flow machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201300197A TW201300197A (en) | 2013-01-01 |
| TWI444246B true TWI444246B (en) | 2014-07-11 |
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| TW100122558A TWI444246B (en) | 2011-06-28 | 2011-06-28 | Two - way cross - flow machine tool |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI796281B (en) * | 2022-11-10 | 2023-03-11 | 鼎朋企業股份有限公司 | Electric grinding tool machine and its housing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275630A (en) * | 2013-07-12 | 2015-01-14 | 南京德朔实业有限公司 | Handheld sanding machine |
| TWI751912B (en) * | 2021-02-20 | 2022-01-01 | 鼎朋企業股份有限公司 | Grinding tool machine for reducing the hotness of the casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI796281B (en) * | 2022-11-10 | 2023-03-11 | 鼎朋企業股份有限公司 | Electric grinding tool machine and its housing |
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| TW201300197A (en) | 2013-01-01 |
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