201002551 - 六、發明說明： • 【餐明所屬之技術領域】 業車^發明係有關一種搭载有油屋驅動式的作業機械之作 【先前技術】 現今’係利用各種車輛作 業車輛係指於車輛上其載作^作業車輛。在此’所謂作 ^ D载作業機械，藉由該作業機械進行 蛊如&入，Λ )之車輛。如以下以廢棄物收集車 二〇f m乏利用搭载有油壓驅動式的作業機械 板7 11所示的具有旋轉式輸送板（旋轉 == 塞板（rarapanel)(壓人板）3之廢棄物收 _由板2係错由油壓馬達4而驅動。填塞板3係 :田/、i。於廢棄物收集車1搭载有油壓果作 '·、、、驅動油壓馬達4與油壓缸5之油壓迴路内的驅動源。 ㈣油壓泵的_方式而言，已知有以下三種方式i 第8圖所不的廢棄物收集車1&係採用⑽Power如 ’動力分導：從車辆,驅動用引擎等分導出用以進 作業之動力）方式。 /、 苽某物收集車la係使車輛驅動用引擎25運轉後，啟 = (〇N)PT◦裝置6 ’藉由該ΡΤ0裝置6從引擎25分導出動 f，藉由該動力使油壓泵7旋轉，使油壓迴路内的作動油 流動。 弟9圖與第10圖所示的廢棄物收集車lb係採用電性 321155 3 201002551 、。動式；I：棄物收集車lb係控制將所搭載的電池8作带 源之換流n(inverter)9以驅動電動馬達iG，將電動: 的旋轉傳達至油壓泵7使油壓泵7旋轉，使油壓迴路内 的作動油流動。 卜有種具備有引擎驅動系統與電性驅動系絲 =作為油壓泵的旋轉驅動系統之方式。此方載於專 利文獻1至4。 專 專利文獻1及2係記載有顯示引擎/ρτ〇裝置 電池/電動馬達系統作為油屋果的旋 = =圖。就具體構成而言’專利文獻】係記载=== 置—體化的機㈣錢㈣軸連接有 文獻3係記載有以引擎驅動的驅動軸連接於油塵 " 成圖。依據此構成圖可知，於上述油壓泵亦連接右 ㈣統。相文獻4係記載有Μ擎、發動 二錄:，结之構成。在專利文獻…所記载上 成中，並未使用ΡΤ0裝置。 魅Γ論是何種料，藉由油魏7的輯所產生的油屋 = 使輸送板2與填塞板3動 二：：廢莱物堆入等作業動作。因此，廢棄物收集車 圈型信號等切換油壓迴路中的控制間（三位兩線 、η Ρ 1 〇len〇id)，藉此改變作動油的流動， 以控制油屡馬達4和油壓紅5等油麼致動器的動作。 包含板2、3未動作之時期，在油塵栗7被_時，會 32J155 4 201002551 有因為作動油的流動導致噪音大之問題。 近年來，為了緩和交通堵塞與解決因為烏鸦等導致垃 圾收集站散亂之問題，逐漸傾向於夜間或早上收集垃圾。 從而，附近居民投訴夜間/早上的垃圾收集所產生的噪音 之噪音陳情案件持續增加。 為了將泵予以低噪音化，以往已提案將各種泵裝設於 廢棄物收集車以作為解決問題的手段，然而以往所提案的 方法各有優缺點，並未提案絕對有利的泵。 以下，說明已提案的泵的例子作為參考。 外接齒輪泵由於構造簡單不易損壞、價格便宜、以及 小型化，因此廣泛地被利用，然而由於齒輪的嗜合音與吐 出脈動大，因此嗓音大。 内接齒輪泵無外接齒輪泵般的0i合音，因此噪音低， 然而由於需要高速旋轉，因此使用環境有限。此外，由於 内接齒輪泵的尺寸大，因此難以裝設於2噸卡車的框架 (chassis frame)内侧，因此在日本並未普及於廢棄物收集 車° 活塞泵由於藉由活塞的上下動作進行油的壓出，因此 噪音較低，然而因為構造複雜且零件數目多，因此一般價 格較高，尺寸亦較大。 在廢棄物收集車中，會有操作者為了提升機械的作業 速度而故意提高引擎速度使泵的動作速度提高之行為，然 而此行為就噪音之觀點而言會有問題。在廢棄物收集車使 用柱塞泵（plunger pump)(柱塞泵係被分類於活塞泵中）的 5 321155 201002551 ，:二：使柱塞泵以—定速度以上的速度被旋轉驅動， 、=Γ=:槽之功用，因此作業速度不會提升至該 速度以上，而有抑制上述行為的效果。 因此，已知藉由於廢棄物收集車利 確保純噪音且能防止上述行為的效果。 以又传 另方面，在齒輪泵的情形中，提供一種雙齒& 動。㈣^輪對㈣彼此的脈動而實現低噪音/低振 f利文獻1:曰本特開平10-37904號公報 f利文獻2··曰本特開2〇〇3 —146_號公報 f利文獻3 :曰本特開平H42587號公報 f利文獻4:日本特開__15() 【發明内容】 w (發明所欲解決之課題） 本發明乃為解決上述習知 課題為在搭载有油_的:;：=創者’其 噪音及振動。 M乍業拽械之作業車輛中降低 (知決课題的手段） 击為了解決上述課題，中請專 業車輛係具備有：齒 _丄項所Z載的作 輪泵所壓送的作""]， 業機械，係藉由前述齒 、乍動油而被驅動；前述it 1 # I i + 此嚙合的驅動齒輪盥产翻去认π ^輪栗係為錯由由彼 來壓送作動％ /、文W 構成的齒輪對的嚙合旋轉 輪對係具有兩對前述齒輪對，該兩對齒 作動油的壓送動作的脈動彼此錯開之方式所構 321155 201002551 -f前述齒輪泵_送作動油槽内的作動油，·進 有.閥’係设置於聯繫前述齒輪泵與前述 二 作動油路徑；以及下行作動油路徑，係於^ 仃 行作動油路徑分歧，且聯繫至 '、' 心閥從前述上 由前述下行作動油路#使—部份的前述閥係經 油槽。 ’由返回至前述作動 申請專利範圍第2項所記載 她圍第1項’係復具備有:流量;=:屬::請 述上行作動油路捏；以及返馳作動油路二 調節器從前述上行作動油路徑分歧，並=剛m 槽；前述流量調節器係以前n則述作動油 會超過預定值之方式，經由前述返：動：：油壓不 的作動油返回至前述作動油槽。乍動油路錢-部份 申請專利範圍第3項所記載 專利範圍第i項或第2項，係 1車_附屬於申請 之電性馬達。 ’、/、有用以驅動前述齒輪泵 (發明之效果） 依據本發日月，盘於；^ At 輪對所屢送的作_2:: 對彼此抵消藉由齒 發明，藉由二=出脈動的1份。此外，依據本 在預定值内，藉此抑制掉 〜工内的油屋抑制 故意提高^擎與栗的旋轉速& =機械的作業速度而 具有能抑制各部的振動程度;二=友據本發明， f實施方式】 兀1牛低木日及振動之效果。 321155 7 201002551 以下芩照圖式說明本發明的 。 發明的-實施形態，並非用以限定本發明一下僅為本 第1圖係於本發明的一實施形態的作業車輛所 油壓驅動系統的構成方塊圖。於聯繫作動油槽3丨至㈣致 作動油路徑41上依序配料雙齒輪泵32、 ΪΓΓ二作二及電磁間34。將作動油槽31與雙齒輪201002551 - VI. Description of the invention: • [Technical field to which the meal belongs] Industry car ^ Invention is a work machine equipped with an oil house drive type [Prior Art] Today, the use of various vehicle work vehicles refers to the vehicle. It is used as a work vehicle. Here, the vehicle is a vehicle that is operated by the working machine, such as & In the following, the garbage collection vehicle 7 (11) has a rotary conveying plate (rotation == rapapanel (pressing plate) 3 waste) as shown in the hydraulic drive type working machine plate 7 11 The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The driving source in the hydraulic circuit of the cylinder 5. (4) The method of the hydraulic pump is known as the following three methods. The waste collection vehicle 1& which is not shown in Fig. 8 adopts (10) Power such as 'power division: from The vehicle and the drive engine are equally divided to derive the power for entering the work. /, 苽 物 收集 使 使 使 使 使 使 使 使 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆 车辆The pump 7 rotates to cause the operating oil in the hydraulic circuit to flow. The waste collection vehicle lb shown in Figure 9 and Figure 10 is electrically 321155 3 201002551. I: The waste collection vehicle lb system controls the battery 8 to be used as the source inverter n (inverter) 9 to drive the electric motor iG, and transmits the rotation of the electric motor to the hydraulic pump 7 to make the hydraulic pump 7 Rotate to make the working oil in the hydraulic circuit flow. There is a way to have an engine drive system and an electric drive wire = as a rotary drive system for a hydraulic pump. This is contained in Patent Documents 1 to 4. Patent Documents 1 and 2 disclose a display engine/ρτ〇 device battery/electric motor system as a rotation of the oil house. As for the specific structure, the patent document is described as === machine (4) money (four) axis connection. Document 3 describes that the engine-driven drive shaft is connected to the oil dust. According to this configuration diagram, the hydraulic pump is also connected to the right (four) system. According to the literature 4, there is a description of the engine, the second record: the composition of the knot. In the process described in the patent document, the ΡΤ0 device is not used. What is the material of the charm paradox, the oil house generated by the series of oil Wei 7 = the moving plate 2 and the stuffing plate 3 move 2:: the waste material is piled up and other operations. Therefore, the waste collection rim type signal switches the control room (three positions, two lines, η Ρ 1 〇 len〇id) in the hydraulic circuit, thereby changing the flow of the operating oil to control the oil repeatedly motor 4 and the oil pressure. Red 5 equals the action of the actuator. In the period when the plates 2 and 3 are not in operation, when the oil dust pump 7 is _, the 32J155 4 201002551 has a problem of noise due to the flow of the oil. In recent years, in order to alleviate traffic jams and solve the problem of garbage collection stations caused by crows and the like, there is a tendency to collect garbage at night or in the morning. As a result, noise complaints from nearby residents complaining about the noise generated by night/morning garbage collection continue to increase. In order to reduce the noise of the pump, it has been proposed to install various pumps in the waste collection vehicle as a means of solving the problem. However, the methods proposed in the past have advantages and disadvantages, and no absolutely advantageous pump has been proposed. Hereinafter, an example of a proposed pump will be described as a reference. The external gear pump is widely used because it has a simple structure, is not easily damaged, is inexpensive, and is miniaturized. However, since the gears have a large pulsation and a large pulsation, the hum is large. The internal gear pump has no 0i chorus like an external gear pump, so the noise is low. However, due to the need for high-speed rotation, the use environment is limited. In addition, since the size of the internal gear pump is large, it is difficult to install on the inside of the chassis frame of a 2-ton truck. Therefore, it is not widely used in waste collection vehicles in Japan. The piston pump is oiled by the up and down movement of the piston. The extrusion is low, so the noise is low. However, because of the complicated structure and the large number of parts, the price is generally higher and the size is larger. In the waste collection vehicle, there is an operator who intentionally increases the engine speed to increase the speed of the pump in order to increase the speed of the machine, and this behavior is problematic from the viewpoint of noise. 5 321155 201002551 is used in the waste collection vehicle using a plunger pump (the plunger pump is classified in the piston pump): 2: The plunger pump is rotationally driven at a speed higher than or equal to the speed, = Γ =: The function of the slot, so the operating speed will not increase above this speed, and there is an effect of suppressing the above behavior. Therefore, it is known that the effect of the above behavior can be prevented by the waste collection vehicle to ensure pure noise. In another aspect, in the case of a gear pump, a double tooth & motion is provided. (4) ^ Wheelset (4) pulsing each other to achieve low noise / low vibration F. Document 1: 曰本特开平10-37904号 福利文2··曰本特开2〇〇3 —146_号Document 3: 曰本特开平 H42587号 利li document 4: Japanese special open __15() [Summary of the invention] w (The problem to be solved by the invention) The present invention solves the above-mentioned conventional problem to be equipped with oil _ :;:=Creator's its noise and vibration. In the work vehicle of the M 拽 拽 降低 ( ( ( ( ( ( ( ( ( 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 为了 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业 专业"], the industrial machinery, is driven by the aforementioned teeth, swaying oil; the above it 1 # I i + the meshing drive gear 盥 翻 认 认 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮The meshing rotary wheel pair of the gear pair formed by the actuation % /, the text W has two pairs of the gear pair, and the pulsation of the pressure transmission action of the two pairs of tooth oils is shifted from each other. 321155 201002551 -f the aforementioned gear pump Actuating the oil in the oil tank, the inlet valve is installed in contact with the gear pump and the second oil path; and the downward oil path is tied to the oil path, and is connected to the ',' heart The valve is partially traversed by the aforementioned downward actuating oil passage #. 'Returned to the second paragraph of the above-mentioned action application patent range, she encloses the first item of 'there is: flow; =: genus:: please describe the upward movement of the oil pipe; and the returning actuating oil circuit two regulators from The upstream fuel oil path is divergent, and is equal to the m-slot. The flow regulator is said to return the hydraulic oil to the actuating oil tank via the above-mentioned operation. Investing in the oil road money - part of the scope of patent application, item 3 of the scope of patent application, item i or item 2, is an electric motor attached to the application. ', /, useful to drive the aforementioned gear pump (the effect of the invention) according to the date of the hair, the disk in; ^ At wheel pair of repeated _2:: offset each other by tooth invention, by two = out 1 pulsed. In addition, according to the present value within the predetermined value, thereby suppressing the oil house in the work, suppressing the intentional increase of the speed of rotation of the engine and the pumping machine, and the working speed of the machine, can suppress the degree of vibration of each part; , f implementation method] 兀 1 cattle low wood day and vibration effect. 321155 7 201002551 Hereinafter, the present invention will be described with reference to the drawings. The invention is not limited to the present invention, and is merely a block diagram of a hydraulic drive system for a work vehicle according to an embodiment of the present invention. The double gear pump 32, the second two and the electromagnetic chamber 34 are sequentially dispensed on the moving oil path 41 in connection with the actuating oil tanks 3丨 to (4). Will actuate oil sump 31 and double gear
If旦_標示成符號❿，將雙齒輪果32 致作動油路徑標示成符號仙。油壓 致動"35係相當於第7圖所示的油壓馬達4和油H5。 在電磁閥34從上行作動油路徑 42係聯繫至作動油槽31。此外，;的Λ订作動油路徑 此7卜在流置調節哭3 q作μ 2油路徑41分歧的返馳作動油路徑善至作動油丁 雙齒輪泵32係通過流量調節 作動油塵送至電磁間油槽31内的 制規則判斷來自設置於作二根據預先制定的控 _號，控制電磁閱3:::::=操作用開關 壓力及控制油壓致動哭35的叙 ",t致動杰35的 i双助态扑的動作。例如，在 =中’關馬達4係使輸送板2旋轉’油;係:直 ，係依據電磁間34的控制 = 返回至作動油槽3卜 戒路從42 ,置==:藉由驅動裝置而被旋轉._。以_^ 、& ’係應用例如第8圖所示的PT〇裝置6或第㈣ 321155 8 201002551 ' 所示的電動馬達1 〇。 , 流量調節器33係以作動油路徑仙内的 =值之方式開閉返馳作動油路徑43 作動油路徑43使一部份的作動油返回至作動油槽t由返馳 因此，即使在應用第8圖所示的引擎作告 :!=，亦能抑制操作者為了提高作業機以 =擎的旋轉速度以—致動器的動作速度的情 的構系於習知例的作業車贿搭載之油㈣動系统 構成方塊圖。與本習知例不同處在於，本實施形 系統係組入有雙齒輪泵32、流量調節器33、：返 :作動油路徑43。第2圖所示的齒輪果38係為具有； 用以壓送作動油的齒輪對之單齒輪栗，相對於此，本實施 的雙爾32係為具有兩對用以壓送作動油 勺㈤輪對，不同於第2圖所示的齒輪泵38。 :下說明雙齒輪泵32的構成。第3圖係雙齒輪泵％ 的不思性斜視透視圖。第4圖係雙齒輪132的内部構造示 意圖。 雙齒輪泵32係具備有：驅_咖、兩個驅動歯輪 士32c、旋轉支樓轴32d、兩個從動齒輪他、32f、以 罩双32g ,驅動轴32a係藉由上述驅動裝置而被旋轉驅 動。兩個驅動齒輪32b、32c分別外嵌固定於驅動轴32a 而與驅動轴3 2 a —起旋轉。 旋轉支撐軸32d係與驅動車由仏平行配置。兩個從動 321155 9 201002551 回兩32e、32f係分別以旋轉自由之方式被旋轉支擇轴咖 支撑。從動齒輪32e係喃合於驅動齒輪32b。從動嵩輪奶 係嚙合於驅動齒輪32c。四個齒輪32b、32c、32e ” 軸方向長度係相等。 1的 第4圖係、於與驅動軸32a垂直的罩殼啕 ==輪咖、32^、饥的外形之雙齒輪栗_ 内賴4示意圖。如第4圖所示，驅動齒輪咖的固 度與驅動齒輪32c的固定角度係錯開半齒的間距。 如第3圖與第4圖所示，於罩殼32g的内部形成具有 ::、圓筒内面的空洞，該部份圓筒内面係覆蓋四個齒輪 c 32e、32f，該空洞係於與齒輪對的間距母線垂 f的軸方向的兩端具有開口。於罩殼物的一方開口連接 動油路，41a，於另—方開口連接作動油路徑仙。於第 3圖中及第4圖中以圓孤箭頭32h表示用以將作動油壓送 由路控41b之齒輪對的旋轉方向。當酱輪對朝圓弧 二頭32h所示的方向旋轉時，從作動油路徑仙所供給的 作動油係被封入於各齒輪咖、版、版、辦*罩殼 的部份圓筒内面之間，並輸送至作動油路徑仙側。於第 3圖及苐圖中以箭頭咖表示此時的作動油的流動路徑。 第4圖所717 ’驅動齒輪32b的固定角度與驅動齒輪 々口^、角度係錯開半酱的間距。因此，齒輪對32b、32c ¥致的塵达動作的脈動與齒輪對32e、32f所導致的麼送 動作的脈動係錯開半週期。藉此，雙齒輪泵犯整體的作動 油的吐出詈_ & $ ，且兩對齒輪對的脈動彼此抵消，故 ]〇 321155 201002551If Dan _ is marked as a symbol ❿, the double gear fruit 32 is marked as a symbol of the oil path. The hydraulic actuation "35 series corresponds to the hydraulic motor 4 and the oil H5 shown in Fig. 7. The solenoid valve 34 is coupled to the actuating oil groove 31 from the upstream oil path 42. In addition, the Λ 作 作 动 此 此 7 7 7 7 7 7 7 调节 调节 调节 调节 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流 流The rule of the rule in the electromagnetic oil sump 31 comes from the setting according to the pre-established control number, and controls the electromagnetic reading 3:::::= operation switch pressure and the control oil pressure to actuate the cry 35. Actuated the action of Ja-35's i-helpful flutter. For example, in the = "off motor 4 system to rotate the conveyor plate 2 'oil; system: straight, according to the control of the electromagnetic room 34 = return to the actuating oil tank 3 dial way from 42, set ==: by the drive device Being rotated._. For example, the PT 〇 device 6 shown in Fig. 8 or the electric motor 1 第 shown in (4) 321155 8 201002551 ' is applied. The flow regulator 33 opens and closes the returning oil path 43 in the manner of the value of the oil path, and acts as the oil path 43 to return a part of the operating oil to the actuating oil tank t. Therefore, even in the application of the eighth The engine shown in the figure: != can also suppress the operator's construction of the brakes in the conventional example in order to increase the rotational speed of the working machine and the operating speed of the actuator. (4) Block diagram of the dynamic system. The difference from the conventional example is that the present embodiment is incorporated with a dual gear pump 32, a flow regulator 33, and a return oil path 43. The gear nut 38 shown in Fig. 2 is a single gear pump having a gear pair for pumping the working oil. In contrast, the Shuanger 32 system of the present embodiment has two pairs of pressure oil spoons (5). The wheel pair is different from the gear pump 38 shown in FIG. : The configuration of the dual gear pump 32 will be described below. Figure 3 is a perspective view of the squint of the double gear pump %. Fig. 4 is a schematic illustration of the internal configuration of the dual gear 132. The dual gear pump 32 is provided with: a drive-coffee, two drive wheels 32c, a rotary support shaft 32d, two driven gears, 32f, and a cover double 32g, and the drive shaft 32a is driven by the above-mentioned driving device. Driven by rotation. The two drive gears 32b, 32c are respectively externally fitted and fixed to the drive shaft 32a to rotate together with the drive shaft 32a. The rotary support shaft 32d is disposed in parallel with the drive vehicle. Two followers 321155 9 201002551 Back to the two 32e, 32f are respectively rotated to support the axis coffee. The driven gear 32e is woven to the drive gear 32b. The driven wheel milk is engaged with the drive gear 32c. The four gears 32b, 32c, and 32e are equal in length in the axial direction. The fourth figure of 1 is a cover that is perpendicular to the drive shaft 32a. ===Roller, 32^, the shape of the hungry gear. 4 is a schematic view. As shown in Fig. 4, the fixed angle of the driving gear and the fixed angle of the driving gear 32c are shifted by the pitch of the half teeth. As shown in Figs. 3 and 4, the inside of the casing 32g is formed to have: : a hollow in the inner surface of the cylinder, the inner surface of the cylinder is covered with four gears c 32e, 32f, and the hollow has an opening at both ends of the axial direction of the pitch of the pair of gears. One of the openings is connected to the moving oil passage, 41a, and the other is connected to the movable oil path. In the third and fourth figures, the gear pair for transmitting the hydraulic oil to the road control 41b is indicated by a circular arrow 32h. The direction of rotation. When the sauce wheel rotates in the direction indicated by 32h of the arc, the operating oil supplied from the oil path is sealed in the parts of each gear, plate, plate, and cover. Between the inner faces of the cylinder, and conveyed to the side of the moving oil path. In Figure 3 and the figure, the arrow coffee is used to indicate this time. Actuating the flow path of the oil. Fig. 4 717 'The fixed angle of the drive gear 32b is the distance between the drive gear and the angle of the drive gear. The angle between the gears 32b and 32c is pulsating and gearing. The pulsation of the sending action caused by 32e, 32f is shifted by a half cycle. Thereby, the double gear pump smashes the overall squirting 作 _ & $, and the pulsations of the two pairs of gear pairs cancel each other, so 〇 321155 201002551
實現低振動/低。桑音。 參照第5圖說明脈動抵消的理論。第5圖（Μ)係取出 本實施形態的雙齒輪泵32的驅動軸32a與兩個驅動齒輪 32b、32c予以描繪的斜視圖。兩個驅動齒輪犯匕、π。彼 此的，方向長度相等，將其長度標示為L。第5圖⑷）係 取出單齒輪泵的驅動軸52a與驅動齒輪52b予以描繪的斜 視圖。與第5圖（bl)所示的雙齒輪泵32的不同點在於，第 5圖（al)所示的單齒輪泵的驅動齒輪5訃的軸方向長度為 2L’其他的規格則與第5圖（bl)所示的雙歯輪果32相同。 例如’依據此種構成，比較容量相料單齒輪泵與雙齒輪 泵。以理想的情形而言，當單#輪泵的吐出脈動以第5圖 U2)所示的波形a顯現時，雙齒輪泵的一方齒輪對的吐出 脈波係以第5圖⑽所示的波形al顯現，另—方的齒輪對 的吐出脈動係以波形a2顯現。如第5圖（以）與（b2)所示， 波形al與波形a2的振幅係為波形a的振幅的一半。如第Achieve low vibration / low. Sanyin. The theory of pulsation cancellation will be described with reference to Fig. 5. Fig. 5 is a perspective view showing the drive shaft 32a and the two drive gears 32b and 32c of the double gear pump 32 of the present embodiment. The two drive gears are guilty, π. For each other, the length of the direction is equal, and the length is indicated as L. Fig. 5 (4)) is a perspective view in which the drive shaft 52a of the single gear pump and the drive gear 52b are taken out. The difference from the double gear pump 32 shown in Fig. 5 (b1) is that the length of the drive gear 5A of the single gear pump shown in Fig. 5(al) is 2L in the axial direction. The double twisted fruit 32 shown in Fig. (b1) is the same. For example, according to this configuration, a single-gear pump and a dual-gear pump are compared. In an ideal case, when the discharge pulsation of the single-wheel pump is visualized by the waveform a shown in Fig. 5, U2), the discharge pulse of one of the pair of gears of the dual-gear pump is the waveform shown in Fig. 5 (10). Al appears, and the spitting pulsation of the other pair of gear pairs appears as waveform a2. As shown in FIGS. 5(A) and (b2), the amplitudes of the waveform a1 and the waveform a2 are half the amplitude of the waveform a. Such as the first
5圖（b2)所示’波形al與波形a2彼此的振幅及週期相等， 相位則錯料·。因此，進行脈動變化的—方的齒輪對 所產生的吐出量與錯開半週期進行脈動變化的另-方的齒 輪對所產生的吐出量係互補，吐出至作動油路徑仙的作 :油的里爻成一疋。如此’由於一方的齒輪對的脈動盥另 :方的齒輪對的脈動係互相抵消，而如合成波七般變成 令’吐出脈㈣’失’因此起因於吐錄動之振動不會傳 至周圍。 依據上述所說明的理論，應驗本實施形態的雙歯輪 32U55 11 201002551 泵32係實現低振動/低噪音。 接說明本發明所進行的噪音的計測結果。 統，作_9圖所示:電==物驅動: 車。以比較=而言，係採用兩個比較例！、2。比較例= 係應用採用單齒輪泵之第2圖& _ 又 、25 (b2) shows that the amplitude and period of the waveform a1 and the waveform a2 are equal to each other, and the phase is wrong. Therefore, the amount of discharge generated by the pair of gears that have undergone the pulsation change is complementary to the amount of discharge generated by the other pair of gears that pulsate the half cycle, and is discharged to the working oil path. Become a glimpse. In this way, the pulsation of one pair of gears is different: the pulsation of the pair of gears cancels each other, and the synthetic wave seven becomes the 'spit pulse (four) 'missing', so the vibration caused by the vomiting is not transmitted to the surroundings. . According to the above-described theory, the double-turn wheel 32U55 11 201002551 of the present embodiment is realized to realize low vibration/low noise. Next, the measurement results of the noise performed by the present invention will be described. System, as shown in Figure _9: electricity = = object drive: car. In comparison =, two comparison examples are used! ,2. Comparative example = Application of a single gear pump Figure 2 & _ again, 2
物你鱼圖所不的油壓驅動系統的廢畢 物收集車。比較例i係採用第8圖所示的p U 較例2係採用第9圖所示的電動馬達驅動者。一面使本^ 的廢棄物1^車進行相同條件的堆入動 隹乍=2、3的相同動作）’—面藉由計測器計測各廢棄物收 =方5,位置的噪音值。關於本發明例與比較例、 在引擎停止的狀態下進行計測。第6圖中所示 :、 本發明例的噪音計測結果，圖表d 、Y、c 'τ、 結果，圖表d2係比較例2的噪音計測結^例1的_十測The waste collection vehicle of the hydraulic drive system that you can't figure out. In the comparative example i, the p U shown in Fig. 8 is used. In the second example, the electric motor driver shown in Fig. 9 is used. On the other hand, the waste of the same type of vehicle is subjected to the same operation as the stacking motion = 2, and the same operation is performed.] The surface is measured by the measuring instrument. In the examples of the present invention and the comparative examples, the measurement was performed while the engine was stopped. As shown in Fig. 6, the noise measurement results of the example of the present invention, the graphs d, Y, c 'τ, the results, and the graph d2 are the noise measurement results of the comparative example 2
從第6圖所示的計測纟士罢π A 低於PTG鶴的比較们㈣動’發明例的％音值係 …… 動馬達驅動的比較例2。因 此，^為應用本發明係具有低噪音化的效果。 此外，尚具有下述優點有助於改善噪音問題。 以往，以作動油配管和控制器37的防振 f固定構造介裝有防振橡膠，或特別訂製 =From the measurement of the gentleman shown in Fig. 6, the π A is lower than the comparison of the PTG crane. (4) The % value of the invention example is the dynamic example of the movable motor drive. Therefore, the application of the present invention has a low noise effect. In addition, the following advantages are provided to help improve noise problems. In the past, anti-vibration rubber was installed in the anti-vibration f fixed structure of the oil piping and controller 37, or it was specially ordered =
t作為控制器37的基板，因此會增加成本。此乃為了防I 的誤動作之必要手段。然而，由於應用本 ‘月二=辰動產生，因此能簡化以往所應用的 朿，而能谋求成本降低。 321155 12 201002551 在上述本發明的竇 ‘及返桃動作油粹4 4形悲中’雖應用流量調節器33 成。對於苐2圖所亍發明並未限定於應用此等之構 齒輪…形態來;：:可藉由應用雙齒㈣ 【圖式簡單說明】 、、由圖係於本發明的—實施形11的作業車輛所搭載之 油壓驅動系統的構成方塊圖。 料。戟之 的構ί = «車輛所搭載之油壓驅動系統 視透^圖3圖係本發明的一實施形態的雙齒輪泵的示意性斜 示意^圖係本發明的一實施形態的雙齒輪系的内部構造 f給^圖⑷）係取出早齒輪泵的驅動軸及驅動齒輪予以 指、.，日之斜視圖，第5圖（bl) 雙齒本 —貫施形態的 又^輪系的驅動軸及兩個驅動齒輪予以描緣之斜視圖，第 =a2)係顯示單齒輪果的吐出脈動之波形，第5圖⑽ 係顯不雙齒輪泵的吐出脈動之波形。 夕同f 6圖係顯示本發明例及比較例1、2的噪音計測結果 之圖表。 第7圖係顯示廢棄物收集車的斜視圖。 第8圖係顯示PT0方式的廢棄物收集車的概略平面圖。 第9圖係顯示電性驅動式廢棄物收集車的概略平面 圖。 323155 13 201002551 第10圖係顯示電性驅動式廢棄物收集車的左侧面圖 【主要元件符號說明】 、la、lb廢棄物收集車 32d 32g 輸送板 油壓馬達 pto裝置 電池 電動馬達 作動油槽 32a、52a驅動軸 旋轉支撐軸 罩殼 電磁閥 36 感測器及開關 38 齒輪泵 41a、41b作動油路徑 43 返驰作動油路徑 3 填塞板 5 油壓缸 7 油壓泵 9 換流器 25 引擎 32 雙齒輪泵 32b、 32c、52b 驅動齒輪 32e、 3 2 f 從動齒輪 33 流量調節器 35 油壓致動器 37 控制器 41 上行作動油路徑 42 下行作動油路徑 321155 14t acts as a substrate for the controller 37, thus increasing the cost. This is a necessary means to prevent the malfunction of I. However, since the application of this ‘month 2=chen action is generated, it is possible to simplify the shackles used in the past and to reduce costs. 321155 12 201002551 In the above-described sinus ‘and returning peach action oil 4 悲 ’ ”, the flow regulator 33 is applied. The invention of the Fig. 2 is not limited to the application of the configuration of the gears;:: by applying the double teeth (four) [simple description of the drawings], and by the drawings of the invention 11 A block diagram of a hydraulic drive system mounted on a work vehicle. material. FIG. 3 is a schematic perspective view of a double-gear pump according to an embodiment of the present invention. The dual-gear system according to an embodiment of the present invention is a schematic diagram of a double-gear system according to an embodiment of the present invention. The internal structure f is given to the figure (4)). The drive shaft and the drive gear of the early gear pump are taken out, and the oblique view of the day is taken. Figure 5 (bl) The double-toothed--------------------- The shaft and the two drive gears are viewed obliquely, and the =a2) shows the waveform of the discharge pulsation of the single gear, and the fifth diagram (10) shows the waveform of the discharge pulsation of the double gear pump. The same Fig. 6 shows a graph of the noise measurement results of the examples of the present invention and Comparative Examples 1 and 2. Figure 7 is a perspective view showing the waste collection vehicle. Fig. 8 is a schematic plan view showing a waste collection vehicle of the PT0 type. Figure 9 is a schematic plan view showing an electrically driven waste collection vehicle. 323155 13 201002551 Fig. 10 shows the left side view of the electrically driven waste collection vehicle [main component symbol description], la, lb waste collection vehicle 32d 32g conveyor plate hydraulic motor pto device battery electric motor actuation oil groove 32a 52a drive shaft rotary support shaft housing solenoid valve 36 sensor and switch 38 gear pump 41a, 41b oil path 43 returning oil path 3 packing plate 5 hydraulic cylinder 7 hydraulic pump 9 inverter 25 engine 32 Double gear pump 32b, 32c, 52b Drive gear 32e, 3 2 f Drive gear 33 Flow regulator 35 Oil pressure actuator 37 Controller 41 Upward oil path 42 Downstream oil path 321155 14