TWI663906B - Work vehicle - Google Patents

Work vehicle Download PDF

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Publication number
TWI663906B
TWI663906B TW106138156A TW106138156A TWI663906B TW I663906 B TWI663906 B TW I663906B TW 106138156 A TW106138156 A TW 106138156A TW 106138156 A TW106138156 A TW 106138156A TW I663906 B TWI663906 B TW I663906B
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TW
Taiwan
Prior art keywords
wheel
cage
traveling
rim
peripheral
Prior art date
Application number
TW106138156A
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Chinese (zh)
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TW201824988A (en
Inventor
竹山智洋
土井邦夫
Original Assignee
日商洋馬股份有限公司
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Publication date
Priority to JP2016-243657 priority Critical
Priority to JP2016243657A priority patent/JP6726089B2/en
Application filed by 日商洋馬股份有限公司 filed Critical 日商洋馬股份有限公司
Publication of TW201824988A publication Critical patent/TW201824988A/en
Application granted granted Critical
Publication of TWI663906B publication Critical patent/TWI663906B/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/02Transplanting machines for seedlings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00Wheels or wheel attachments designed for increasing traction

Abstract

本發明之課題,在於利用簡單之構成使移行機體之水田行走性能提升。 The problem of the present invention is to improve the paddy field walking performance of a traveling body with a simple structure.

作業車輛具備有:移行車輪,其支撐移行機體;及籠式車輪,其裝卸自如地被安裝於移行車輪。籠式車輪具備有:環狀之輪緣部;及複數個籠式車輪凸出部,其等係沿著輪緣部之圓周方向以適當間隔被設置於輪緣部。籠式車輪凸出部以於側視時外周側端部側位於較內周側端部側更靠移行機體之前進時之旋轉方向上游側的方式傾斜。籠式車輪凸出部之外周側端部朝向輪緣部之旋轉中心側彎曲。 The work vehicle includes: a traveling wheel that supports the traveling body; and a cage wheel that is detachably mounted on the traveling wheel. The cage wheel includes: a ring-shaped rim portion; and a plurality of cage wheel projections, which are provided on the rim portion at appropriate intervals along the circumferential direction of the rim portion. The cage wheel protrusion is inclined so that the outer peripheral side end portion side is located closer to the upstream side in the rotation direction when the traveling body moves forward than the inner peripheral side end portion side in a side view. The outer peripheral end portion of the cage wheel protruding portion is bent toward the rotation center side of the rim portion.

Description

作業車輛 Work vehicle

本發明係關於例如如農作業用之乘坐式插秧機般,主要被使用於農作業之作業車輛者。 The present invention relates to, for example, a ride-on rice transplanter for agricultural work, and is mainly used for a work vehicle for agricultural work.

於近年來之乘坐式插秧機中,存在有為了提高於農田之移行性能而追加配置車輪者。例如專利文獻1中所記載之乘坐式插秧機,藉由在後車輪之左右內側或左右兩側設置與後車輪一體旋轉之輔助車輪,而謀求移行機體之水田行走性能之提升。 In recent years, there have been ride-on rice transplanters in which wheels are additionally arranged in order to improve the migration performance on farmland. For example, the riding rice transplanter described in Patent Document 1 is provided with auxiliary wheels that rotate integrally with the rear wheels on the left and right or left and right sides of the rear wheels to improve the paddy field performance of the traveling body.

[先前技術文獻] [Prior technical literature] [專利文獻] [Patent Literature]

[專利文獻1]日本專利特開平7-329503號公報 [Patent Document 1] Japanese Patent Laid-Open No. 7-329503

但是,依據輔助車輪之凸出部(lug)之形狀,存在有會因凸出部插入農田之犁底層使得凸出部夾帶土,而導致移行機體之水田行走性能下降之問題。作為作業車輛之一例之乘坐式插秧機,存在有移行機體在較深之農田或黏土質之農田沉陷或在迴轉時破壞犁底層導致移行機體沉陷之問題,而被市場要求水田行走性能的進一步提升。However, depending on the shape of the lugs of the auxiliary wheels, there is a problem that the protrusions may entrain soil due to the protrusions being inserted into the plow floor of the farmland, which may cause the degradation of the paddy field ’s walking performance. As an example of a working vehicle, a riding rice transplanter has the problem that the traveling body subsides in deep farmland or clay farmland, or the plough bottom is destroyed during rotation, which causes the subsiding of the traveling body. The market requires further improvement of the paddy field walking performance. .

本發明係鑒於前述之現狀所完成者,並以利用簡單之構成使移行機體之水田行走性能進一步地提升作為其技術性之課題。 The present invention has been made in view of the foregoing circumstances, and has made it a technical problem to further improve the paddy field walking performance of a traveling body with a simple structure.

本發明之作業車輛係具備有支撐移行機體之一對前車輪及一對移行車輪者,其具備有裝卸自如地被安裝於上述移行車輪之籠式車輪(cage wheel),上述籠式車輪具備有環狀之輪緣部及複數個籠式車輪凸出部,該等複數個籠式車輪凸出部係沿著上述輪緣部之圓周方向以適當間隔被設置於上述輪緣部,上述籠式車輪凸出部以於側視時外周側端部側位於較內周側端部側更靠上述移行機體之前進時之旋轉方向上游側的方式傾斜,上述籠式車輪凸出部之外周側端部係朝向上述輪緣部之旋轉中心側彎曲者。 The working vehicle of the present invention is provided with a pair of front wheels and a pair of traveling wheels that support a traveling body, and includes a cage wheel detachably mounted on the traveling wheel. The annular rim portion and a plurality of cage wheel protrusions are provided on the rim portion at appropriate intervals along the circumferential direction of the rim portion, and the cage type The wheel projection is inclined such that the outer peripheral side end portion side is located closer to the upstream side in the rotation direction when the traveling body moves forward than the inner peripheral side end side when viewed from the side. The cage wheel projection is at the outer peripheral end. The part is bent toward the center of rotation of the rim part.

於本發明之作業車輛中,上述籠式車輪凸出部亦可與上述移行車輪分開地被配置。 In the work vehicle of the present invention, the cage wheel protrusion may be disposed separately from the traveling wheel.

又,本發明之作業車輛亦可為於上述移行車輪之旋轉軸方向上,上述籠式車輪凸出部之寬度較上述移行車輪之寬度寬。 In addition, the working vehicle of the present invention may be in a direction of a rotation axis of the traveling wheel, and a width of the cage wheel protrusion is wider than a width of the traveling wheel.

本發明之作業車輛具備有裝卸自如地被安裝於上述移行車輪之籠式車輪,上述籠式車輪具備有環狀之輪緣部及複數個籠式車輪凸出部,該等複數個籠式車輪凸出部係沿著上述輪緣部之圓周方向以適當間隔被設置於上述輪緣部,上述籠式車輪凸出部以於側視時外周側端部側位於較內周側端部側更靠上述移行機體之前進時之旋轉方向上游側的方式傾斜,上述籠式車輪凸出部之外周側端部朝向上述輪緣部之旋轉中心側彎曲。藉此,由於籠式車輪凸 出部之外周側端部與農田之犁底層所成之角度變得更小,因此籠式車輪凸出部變得不易插入農田之犁底層,並且變得不易切開犁底層。又,籠式車輪凸出部因外周側端部朝向上述輪緣部之旋轉中心側彎曲,因此於籠式車輪凸出部之上升時,變得不易將土夾帶至移行機體之前進時之旋轉方向下游側的面。因此,可避免移行機體於較深之農田或黏土質之農田沉陷或在迴轉時破壞犁底層導致移行機體沉陷之可能性,而可謀求利用簡單之構成之移行機體之水田行走性能的大幅提升。又,籠式車輪凸出部由於外周側端部彎曲,因此可提升籠式車輪凸出部之強度。 The work vehicle of the present invention includes a cage wheel that is detachably mounted on the traveling wheel. The cage wheel includes a ring-shaped rim portion and a plurality of cage wheel projections. The cage wheels The protrusions are provided on the rim portion at appropriate intervals along the circumferential direction of the rim portion, and the cage wheel protrusion portion is positioned more on the outer peripheral side end portion side than on the inner peripheral side end portion side when viewed from the side. By tilting the upstream side of the moving body in the forward direction when the traveling body advances, the outer peripheral end portion of the cage wheel protruding portion is bent toward the center of rotation of the rim portion. As a result, the angle formed by the outer peripheral end of the cage wheel protrusion and the plow floor of the farmland becomes smaller, so that the cage wheel projection becomes difficult to insert into the farmland plow floor, and becomes difficult to cut. Plow the ground floor. In addition, the cage wheel protruding portion is bent toward the center of rotation of the rim portion due to the outer peripheral end portion. Therefore, when the cage wheel protruding portion rises, it becomes difficult to carry soil to the forward rotation of the traveling body. Direction face on the downstream side. Therefore, it is possible to avoid the possibility of the mobile body sinking in deeper farmland or clay-like farmland or to damage the plough floor during rotation to cause the mobile body to sink, and a significant improvement in the paddy walking performance of the mobile body with a simple structure can be sought. In addition, since the end portion of the cage wheel protrusion is curved, the strength of the cage wheel protrusion can be increased.

於本發明之作業車輛中,上述籠式車輪凸出部只要設為與上述移行車輪分開地被配置,由於泥之帶起變少,因此泥變得不易附著,而且,由於附著於籠式車輪凸出部之泥變得容易掉落,泥變得不易堆積於籠式車輪凸出部,因此可實現泥脫落性良好之籠式車輪,而可提升移行機體之水田行走性能。 In the work vehicle of the present invention, as long as the cage wheel protrusions are arranged separately from the traveling wheels, the mud is less likely to be brought up, so the mud is less likely to adhere, and the cage wheels are attached The mud of the protruding part becomes easy to fall, and the mud becomes difficult to accumulate on the protruding part of the cage wheel. Therefore, a cage wheel with good mud-falling property can be realized, and the paddy field running performance of the traveling body can be improved.

又,本發明之作業車輛,只要設為於上述移行車輪之旋轉軸方向上,上述籠式車輪凸出部之寬度較上述移行車輪之寬度寬,由於籠式車輪凸出部所產生之浮力便會大幅地增加,因此可抑制移行機體於較深之農田或黏土質之農田中沉陷。 Moreover, as long as the working vehicle of the present invention is set in the direction of the rotation axis of the traveling wheel, the width of the cage wheel protrusion is wider than the width of the traveling wheel. It will increase greatly, so it can restrain the migrating body from sinking in deeper farmland or clay farmland.

1‧‧‧(作為作業車輛之乘坐式)插秧機 1‧‧‧ (Riding type as working vehicle) Rice transplanter

2‧‧‧移行機體 2‧‧‧ mobile body

3‧‧‧前車輪 3‧‧‧ front wheels

4‧‧‧(作為移行車輪之)後車輪 4‧‧‧ (as a moving wheel) rear wheel

5‧‧‧引擎 5‧‧‧ Engine

6‧‧‧變速箱 6‧‧‧ gearbox

7‧‧‧前軸殼 7‧‧‧ front axle housing

8‧‧‧筒狀框架 8‧‧‧ tubular frame

9‧‧‧後軸殼 9‧‧‧ rear axle housing

10‧‧‧(作為車體外殼之)作業腳踏部 10‧‧‧ (as the body shell)

11‧‧‧前引擎蓋 11‧‧‧ front hood

12‧‧‧移行變速踏板 12‧‧‧shift shift pedal

13‧‧‧駕駛操作部 13‧‧‧Driving Operation Department

14‧‧‧操縱把手 14‧‧‧handle

16‧‧‧作業桿 16‧‧‧Joystick

17‧‧‧座椅框架 17‧‧‧ seat frame

18‧‧‧操縱座位 18‧‧‧Control seat

19‧‧‧連桿框架 19‧‧‧ connecting rod frame

20‧‧‧下部連桿 20‧‧‧ lower link

21‧‧‧上部連桿 21‧‧‧ Upper Link

22‧‧‧升降連桿機構 22‧‧‧ Lifting link mechanism

23‧‧‧8行插植用之秧苗插植裝置 23‧‧‧8 rows seedling transplanting device

24‧‧‧備用秧苗載置台 24‧‧‧ Spare seedling stand

25‧‧‧上下車踏腳板 25‧‧‧Get on and off pedals

26‧‧‧插植輸入箱 26‧‧‧ Planting input box

27‧‧‧插植傳動箱 27‧‧‧ Planting transmission box

28‧‧‧插秧機構 28‧‧‧ Transplanting agency

29‧‧‧(八行插植用之)秧苗載置台 29‧‧‧ (for eight-row planting) seedling mounting platform

30‧‧‧插植爪 30‧‧‧ Planting claws

31‧‧‧旋轉箱 31‧‧‧rotating box

32‧‧‧浮體 32‧‧‧ floating body

33‧‧‧側面標線器 33‧‧‧Side Marker

34‧‧‧標線器輪體 34‧‧‧Marker wheel body

35‧‧‧標線器臂 35‧‧‧marker arm

36‧‧‧前車軸 36‧‧‧ front axle

37‧‧‧後車軸 37‧‧‧ rear axle

37a、112a‧‧‧六角軸部 37a, 112a‧‧‧Hex shaft

38‧‧‧掛接托架 38‧‧‧Mounting bracket

39‧‧‧升降汽缸 39‧‧‧lifting cylinder

40‧‧‧油壓無段變速機 40‧‧‧Hydraulic stepless speed changer

40a‧‧‧油壓泵 40a‧‧‧Hydraulic pump

40b‧‧‧油壓馬達 40b‧‧‧hydraulic motor

41‧‧‧行星齒輪裝置 41‧‧‧ planetary gear device

42‧‧‧齒輪式副變速機構 42‧‧‧Gear-type auxiliary transmission

43‧‧‧主離合器 43‧‧‧Main clutch

44‧‧‧移行刹車 44‧‧‧Transfer brake

45‧‧‧差動齒輪機構 45‧‧‧ Differential gear mechanism

46、78、87‧‧‧萬向接頭軸 46, 78, 87‧‧‧‧ universal joint shaft

47‧‧‧後驅動軸 47‧‧‧ rear drive shaft

48‧‧‧摩擦離合器 48‧‧‧ Friction clutch

49‧‧‧齒輪式傳動機構 49‧‧‧ gear transmission

50‧‧‧機體框架 50‧‧‧frame

51‧‧‧前部框架 51‧‧‧ front frame

52‧‧‧後部框架 52‧‧‧ rear frame

53‧‧‧中間連結框架 53‧‧‧ intermediate link frame

54‧‧‧前框架 54‧‧‧ Front Frame

55‧‧‧後框架 55‧‧‧ post frame

56‧‧‧底架 56‧‧‧ Underframe

57‧‧‧引擎台 57‧‧‧Engine

60‧‧‧後中繼托架 60‧‧‧ Rear Relay Bracket

61‧‧‧U字狀框架 61‧‧‧U-shaped frame

62‧‧‧縱框架 62‧‧‧Vertical Frame

63‧‧‧後軸支撐框架 63‧‧‧ rear axle support frame

64‧‧‧踏腳板支撐台 64‧‧‧Step board support

65‧‧‧消音器 65‧‧‧ Silencer

66‧‧‧動力轉向單元 66‧‧‧Power Steering Unit

68‧‧‧操舵桿 68‧‧‧Steering lever

69‧‧‧排氣管 69‧‧‧Exhaust pipe

70‧‧‧輸出軸 70‧‧‧ output shaft

71‧‧‧變速輸入軸 71‧‧‧ variable speed input shaft

72‧‧‧引擎輸出輪 72‧‧‧engine output wheel

73‧‧‧變速輸入輪 73‧‧‧ Variable input wheel

74‧‧‧PTO傳動軸機構 74‧‧‧PTO drive shaft mechanism

75‧‧‧株距變速箱 75‧‧‧strain

76‧‧‧株距變速機構 76‧‧‧strain distance transmission mechanism

77‧‧‧插植離合器 77‧‧‧ Planting clutch

79‧‧‧橫向進給機構 79‧‧‧ lateral feed mechanism

80‧‧‧秧苗縱向進給機構 80‧‧‧ Seedling vertical feeding mechanism

81‧‧‧插植輸出軸 81‧‧‧ Planting output shaft

85‧‧‧整地轉子 85‧‧‧ ground preparation rotor

86‧‧‧轉子驅動單元 86‧‧‧Rotor drive unit

90、102、122‧‧‧輪緣部 90, 102, 122‧‧‧‧rim

91、124‧‧‧橡膠輪體 91, 124‧‧‧ rubber wheel

92‧‧‧推進凸出部 92‧‧‧ advance projection

93、101、121‧‧‧輪轂筒部 93, 101, 121‧‧‧ Hub

94、103、123‧‧‧輪輻部 94, 103, 123‧‧‧ spokes

95、104‧‧‧補強板部 95, 104‧‧‧ Reinforcement Board Department

96、125‧‧‧外周凸出部 96, 125‧‧‧ peripheral protrusion

100‧‧‧籠式車輪 100‧‧‧ Cage Wheel

105‧‧‧籠式車輪凸出部 105‧‧‧ cage wheel protrusion

105a‧‧‧(籠式車輪凸出部之)外周側端部 105a‧‧‧ (outside the cage wheel projection)

105b‧‧‧凸出部中央部 105b‧‧‧ projection center

105c‧‧‧內周側端部 105c‧‧‧Inner peripheral side end

110‧‧‧延長車軸 110‧‧‧Extended axle

111‧‧‧凸緣部 111‧‧‧ flange

112‧‧‧延長車軸部 112‧‧‧Extended axle section

113‧‧‧肋部 113‧‧‧ rib

120‧‧‧內側輔助車輪 120‧‧‧Inside auxiliary wheel

126‧‧‧間隔構件 126‧‧‧ Spacer

131、135‧‧‧鎖定銷軸 131, 135‧‧‧Lock pin

132、136‧‧‧止動銷 132, 136‧‧‧ stop pin

133‧‧‧墊圈 133‧‧‧washer

134‧‧‧螺栓 134‧‧‧Bolt

141‧‧‧土 141‧‧‧ soil

142‧‧‧犁底層 142‧‧‧ Plow bottom

D4‧‧‧後車輪之外徑尺寸 D 4 ‧‧‧ diameter of rear wheel

D100‧‧‧籠式車輪之外徑尺寸 D 100 ‧‧‧ Cage Wheel Diameter

D120‧‧‧內側輔助車輪之外形尺寸 D 120 ‧‧‧ Outer dimension of inner auxiliary wheel

W4‧‧‧車輪之寬度 W 4 ‧‧‧ Wheel width

W100‧‧‧籠式車輪凸出部之寬度 W 100 ‧‧‧Width of cage wheel protrusion

W120‧‧‧內側輔助車輪之寬度 W 120 ‧‧‧Width of inner auxiliary wheels

Wo‧‧‧外側突出寬度 W o ‧‧‧outer protrusion width

Wp‧‧‧插植寬度 Wp‧‧‧Planting width

θa、θb、θc、θd‧‧‧傾斜角度 θa, θb, θc, θd‧‧‧ tilt angle

θa1‧‧‧角度 θa1‧‧‧angle

圖1係實施形態之乘坐式插秧機之左側視圖。 Fig. 1 is a left side view of the riding rice transplanter of the embodiment.

圖2係乘坐式插秧機之俯視圖。 Fig. 2 is a top view of the riding rice transplanter.

圖3係表示引擎、變速箱及後軸殼等之左側視圖。 FIG. 3 is a left side view showing an engine, a transmission, a rear axle housing, and the like.

圖4係表示引擎、變速箱及後軸殼等之俯視圖。 FIG. 4 is a plan view showing an engine, a transmission, a rear axle housing, and the like.

圖5係乘坐式插秧機之驅動系統圖。 Fig. 5 is a driving system diagram of a riding rice transplanter.

圖6係籠式車輪、後車輪及內側輔助車輪之左側視圖。 Figure 6 is a left side view of the cage wheel, rear wheel and inner auxiliary wheel.

圖7係圖6之A-A線位置之剖面圖。 Fig. 7 is a sectional view taken along the line A-A in Fig. 6;

圖8係籠式車輪、後車輪及內側輔助車輪之立體圖。 FIG. 8 is a perspective view of a cage wheel, a rear wheel, and an inner auxiliary wheel.

圖9係籠式車輪、後車輪及內側輔助車輪之分解立體圖。 FIG. 9 is an exploded perspective view of a cage wheel, a rear wheel, and an inner auxiliary wheel.

圖10係將籠式車輪及後車輪放大表示之左側視圖。 FIG. 10 is an enlarged left side view of a cage wheel and a rear wheel.

圖11係表示籠式車輪與插植爪之位置關係之俯視圖。 11 is a plan view showing a positional relationship between a cage wheel and a planting claw.

圖12係表示籠式車輪凸出部之移動軌跡之示意圖。 FIG. 12 is a schematic diagram showing a movement trajectory of a projection of a cage wheel.

以下,根據應用於8行插植式之乘坐式插秧機1(以下,簡稱為插秧機1)之情形時之圖式,對將本發明具體化後之實施形態進行說明。再者,於以下之說明中,將朝向移行機體2之行進方向之左側簡稱為左側,並將朝向相同行進方向之右側簡稱為右側。 Hereinafter, an embodiment of the present invention will be described based on a drawing when it is applied to an 8-row transplant-type ride-on rice transplanter 1 (hereinafter, simply referred to as a rice transplanter 1). Furthermore, in the following description, the left side toward the traveling direction of the traveling body 2 is simply referred to as the left side, and the right side toward the same traveling direction is simply referred to as the right side.

首先,一邊參照圖1至圖4,一邊對插秧機1之概要進行說明。實施形態之插秧機1具備有藉由作為移行車輪之左右一對前車輪3及相同之左右一對後車輪4所支撐之移行機體2。於移行機體2之前部搭載有引擎5。被構成為將來自引擎5之動力傳遞至後方之變速箱6,而將前車輪3及後車輪4加以驅動,藉此使移行機體2進行前進後退移行。使前軸殼7朝變速箱6之左右側方突出,前車輪3可轉向地被安裝於自前軸殼7朝左右向外方向延伸之前車軸36。使筒狀框架8朝變速箱6之後方突出,將後軸殼(rear axle case)9固定設置於筒狀框架8之後端側,後車輪4被安裝於自後軸殼9朝左右向外方向延伸之後車軸37。 First, the outline of the rice transplanter 1 is demonstrated, referring FIGS. 1-4. The rice transplanter 1 according to the embodiment is provided with a traveling body 2 supported by a pair of left and right front wheels 3 as the traveling wheels and the same pair of left and right rear wheels 4. An engine 5 is mounted on the front of the traveling body 2. It is configured to transmit power from the engine 5 to the rear gearbox 6 and drive the front wheels 3 and the rear wheels 4 to move the traveling body 2 forward and backward. The front axle housing 7 is protruded toward the left and right sides of the gearbox 6, and the front wheels 3 are steerably mounted on the front axle 36 extending from the front axle housing 7 in the left-right outward direction. The cylindrical frame 8 is protruded toward the rear of the gearbox 6, and a rear axle case 9 is fixedly installed on the rear end side of the cylindrical frame 8. The rear wheels 4 are installed from the rear axle case 9 to the left and right and outward. After extending the axle 37.

如圖1及圖2所示,於移行機體2之前部及中央部之上表面側,設置有操作員搭乘用之作業腳踏部(車體外殼)10。於作業腳踏部10之前部之上方配置有前引擎蓋11,並於前引擎蓋11之內部設置引擎5。於作業腳踏部10之上表面中前引擎蓋11之後部側方,配置有腳踏操作用之移行變速踏板12。細節雖省略,但實施形態之插秧機1係構成為藉由與移行變速踏板12之踏入量對應之變速電動馬達之驅動,來調節自變速箱6之油壓無段變速機40所輸出之變速動力。 As shown in FIGS. 1 and 2, on the upper surface side of the front portion and the central portion of the traveling body 2, a work pedal portion (vehicle casing) 10 for an operator to ride is provided. A front hood 11 is disposed above the front portion of the work pedal portion 10, and an engine 5 is disposed inside the front hood 11. On the upper surface of the work pedal portion 10, on the lateral side of the rear portion of the front hood 11, a shifting pedal 12 for pedal operation is arranged. Although the details are omitted, the rice transplanter 1 of the embodiment is configured to adjust the output of the hydraulic stepless speed changer 40 from the gearbox 6 by the drive of a variable speed electric motor corresponding to the amount of depression of the shifting speed pedal 12. Variable speed power.

又,於位於前引擎蓋11之後部上表面側之駕駛操作部13,設置有操縱把手14、移行主變速桿(圖示省略)、及作為升降操作具之作業桿16。於作業腳踏部10之上表面中之前引擎蓋11之後方,經由座椅框架17而配置有操縱座位18。再者,於前引擎蓋11之左右側方,隔著作業腳踏部10設置有左右之備用秧苗載置台24。 In addition, the driving operation portion 13 located on the upper surface side of the rear portion of the front hood 11 is provided with a handle 14, a shift main shift lever (not shown), and a work lever 16 as a lifting operation tool. An operation seat 18 is disposed behind the front hood 11 in the upper surface of the work pedal portion 10 via a seat frame 17. In addition, on the left and right sides of the front hood 11, left and right spare seedling placement tables 24 are provided across the work pedal portion 10.

於移行機體2之後端部直立設置連桿框架19。於連桿框架19,經由由下部連桿20及上部連桿21所構成之升降連桿機構22,而可進行升降地連結有8行插植用之秧苗插植裝置23。於該情形時,於秧苗插植裝置23之前表面側,經由旋轉支點軸(圖示省略)而設置掛接托架(hitch bracket)38。藉由將掛接托架38連結於升降連桿機構22之後部側,而將秧苗插植裝置23可進行升降移動地配置於移行機體2之後方。使油壓式之升降汽缸39之汽缸基端側可進行上下轉動地支撐於筒狀框架8之上表面後部。升降汽缸39之桿前端側連結於下部連桿20。藉由升降汽缸39之伸縮移動使升降連桿機構22上下轉動,結果秧苗插植裝置23進行升降移動。再 者,秧苗插植裝置23構成為繞上述旋轉支點軸轉動而可變更左右方向之傾斜姿勢。 A link frame 19 is provided upright at the rear end of the traveling body 2. A seedling transplanting device 23 for 8 rows of transplants is connected to the link frame 19 via a lifting link mechanism 22 composed of a lower link 20 and an upper link 21 so as to be able to move up and down. In this case, a hitch bracket 38 is provided on the front surface side of the seedling transplanting device 23 via a rotation fulcrum axis (not shown). By connecting the hanging bracket 38 to the rear side of the elevating link mechanism 22, the seedling transplanting device 23 can be arranged behind the traveling body 2 so as to be able to move up and down. The cylinder base end side of the hydraulic lifting cylinder 39 is supported on the rear portion of the upper surface of the cylindrical frame 8 so as to be able to rotate up and down. The rod front end side of the lift cylinder 39 is connected to the lower link 20. The lifting link mechanism 22 is rotated up and down by the telescopic movement of the lifting cylinder 39, and as a result, the seedling transplanting device 23 moves up and down. In addition, the seedling transplanting device 23 is configured to be capable of changing the tilt posture in the left-right direction by rotating around the rotation fulcrum axis.

操作員自位於作業腳踏部10之側方之上下車踏腳板25搭乘至作業腳踏部10上,一邊利用駕駛操作於農田內移動,一邊使秧苗插植裝置23驅動而執行將秧苗插植將於農田之插秧作業(水稻插植作業)。再者,於插秧作業中,操作員對秧苗插植裝置23隨時補充備用秧苗載置台24上之秧苗墊(Seedling mat)。 The operator gets on the work pedal section 10 from the side of the work pedal section 10 and gets on the work pedal section 10, and while driving in the farmland by driving operation, drives the seedling transplanting device 23 to execute the seedling transplanting. The rice planting operation (rice transplanting operation) will be carried out. In addition, during the transplanting operation, the operator supplements the seedling transplanting device 23 with a seedling mat on the standby seedling mounting table 24 at any time.

如圖1及圖2所示,秧苗插植裝置23具備有:插植輸入箱26,其傳遞有自引擎5經由變速箱6之動力;八行用四組(以兩行為一組)之插植傳動箱27,其連結於插植輸入箱26;插秧機構28,其係設置於各插植傳動箱27之後端側;八行插植用之秧苗載置台29;及田面整平用之浮體32,其係配置於各插植傳動箱27之下表面側。於插秧機構28設置有一行具有兩根插植爪30之旋轉箱31。於插植傳動箱27配置有兩行用之旋轉箱31。藉由旋轉箱31旋轉一圈,兩根插植爪30分別割下並抓取各一株之秧苗,且插植至由浮體32所整地後之田面。於秧苗插植裝置23之前表面側,可進行升降移動地設置將田面平坦化(加以整地)之整地轉子85。 As shown in FIG. 1 and FIG. 2, the seedling transplanting device 23 is provided with: a planting input box 26 that transmits power from the engine 5 through the gearbox 6; four rows of eight rows (one in two rows) The planting transmission box 27 is connected to the planting input box 26; the rice transplanting mechanism 28 is arranged at the rear side of each planting transmission box 27; the seedling mounting table 29 for eight rows of planting; and the floating surface for leveling The bodies 32 are arranged on the lower surface side of each planting transmission case 27. A row of rotary boxes 31 having two planting claws 30 is provided on the rice transplanting mechanism 28. A rotary box 31 for two rows is arranged in the planting transmission box 27. By rotating the rotary box 31 once, the two planting claws 30 are respectively cut off and grasped the seedlings of each plant, and are planted on the field surface prepared by the floating body 32. On the front surface side of the seedling transplanting device 23, a leveling rotor 85 for flattening (leveling) the field surface is provided so as to be movable up and down.

雖然細部將於後述之,但自引擎5經由變速箱6之動力不僅被傳遞至前車輪3及後車輪4,亦被傳遞至秧苗插植裝置23之插植輸入箱26。於該情形時,自變速箱6朝向秧苗插植裝置23之動力先被傳遞至在後軸殼9之右側上部所設置之株距變速箱75,動力再自株距變速箱75被傳遞至插植輸入箱26。各插秧機構28或秧苗載置台29係藉由該傳遞之動力所驅動。於株距變速箱75內置有:株距變速機構76,其將要被插植之秧苗之株距切換為例如 稀疏種植、標準種植或密集種植等;及插植離合器77,其將對秧苗插植裝置23之動力傳遞加以通斷(參照圖5)。 Although the details will be described later, the power from the engine 5 through the transmission 6 is transmitted not only to the front wheels 3 and the rear wheels 4 but also to the planting input box 26 of the seedling planting device 23. In this case, the power from the gearbox 6 toward the seedling transplanting device 23 is first transmitted to the plant distance transmission 75 provided on the upper right side of the rear axle housing 9, and the power is further transmitted from the plant distance transmission 75 to the planting input. Box 26. Each seedling transplanting mechanism 28 or seedling mounting table 29 is driven by the transmitted power. Built into the plant-spacing transmission 75 is a plant-spacing transmission mechanism 76 that switches the plant spacing of the seedlings to be planted to, for example, sparse planting, standard planting or dense planting; and a planting clutch 77 that will plant the planting plant 23 Power transmission is turned on and off (see Fig. 5).

再者,於秧苗插植裝置23之左右外側具備有側面標線器(marker)33。側面標線器33具有劃線用之標線器輪體34、將標線器輪體34可旋轉地加以軸支之標線器臂35。各標線器臂35之基端側可進行左右轉動地被軸支於秧苗插植裝置23之左右外側。側面標線器33係構成為根據位於駕駛操作部13之作業桿16之操作,而可轉動成為著地於田面而形成成為下一步驟之基準之軌跡之作業姿勢、及使標線器輪體34上升而離開田面之非作業姿勢。 Furthermore, lateral markers 33 are provided on the left and right outer sides of the seedling transplanting device 23. The side marker 33 includes a marker wheel body 34 for scribing, and a marker arm 35 that rotatably supports the marker wheel body 34. The base end side of each marker arm 35 is pivotally supported on the left and right outer sides of the seedling transplanting device 23 so as to be capable of rotating left and right. The side marking device 33 is composed of a working posture that can be turned to form a trajectory that is used as a reference for the next step according to the operation of the operating lever 16 located in the driving operation portion 13 and a wheel body of the marking device. 34 ascending and leaving the field in a non-operational position.

如圖3及圖4所示,移行機體2具備有朝前後延伸之左右一對機體框架50。各機體框架50被二分割成前部框架51與後部框架52。前部框架51之後端部與後部框架52之前端部被焊接固定於左右橫向之中間連結框架53。左右一對前部框架51之前端部係焊接固定於前框架54。左右一對後部框架52之後端側係焊接固定於後框架55。前框架54、左右兩前部框架51及中間連結框架53係構成為俯視呈四角框狀。同樣地,中間連結框架53、左右兩後部框架52及後框架55亦被構成為俯視呈四角框狀。 As shown in FIGS. 3 and 4, the traveling body 2 is provided with a pair of left and right body frames 50 extending forward and backward. Each body frame 50 is divided into two parts: a front frame 51 and a rear frame 52. The rear end portion of the front frame 51 and the front end portion of the rear frame 52 are welded and fixed to the intermediate connection frame 53 in the left and right lateral directions. The front ends of the pair of left and right front frames 51 are fixed to the front frame 54 by welding. The rear end sides of the left and right rear frames 52 are fixed to the rear frame 55 by welding. The front frame 54, the left and right front frames 51, and the intermediate connection frame 53 are formed in a rectangular frame shape in plan view. Similarly, the intermediate connection frame 53, the left and right rear frames 52, and the rear frame 55 are also formed in a rectangular frame shape in plan view.

如圖4所示,左右兩前部框架51之靠前部位,係藉由前後兩根底架56所連結。該各底架56之中間部係以位於較左右兩前部框架51低之位置之方式,被形成為呈U字形所彎折而得之形狀。各底架56之左右端部係焊接固定於對應之前部框架51。經由大致平板狀之引擎台57及複數個抗振橡膠(圖示省略),而於前後兩底架56搭載而抗振支撐有引擎5。後側之底架56係經由後中繼托架60被連結於變速箱6之前部。 As shown in FIG. 4, the front portions of the left and right front frames 51 are connected by two front and rear underframes 56. The middle portion of each chassis 56 is formed in a U-shaped shape so as to be located lower than the left and right front frames 51. The left and right ends of each chassis 56 are fixed to the corresponding front frame 51 by welding. The engine 5 is mounted on the front and rear underframes 56 via a substantially flat plate-shaped engine bed 57 and a plurality of anti-vibration rubbers (not shown). The rear chassis 56 is connected to the front of the transmission 6 via a rear relay bracket 60.

由圖4可得知,左右兩前部框架51之靠後部位係連結於朝變速箱6之左右兩側突出之前軸殼7。於中間連結框架53之中央側,焊接固定有於側視時朝斜後下方延伸之U字狀框架61之左右兩端部。U字狀框架61之中間部被連結於將變速箱6與後軸殼9相連之筒狀框架8之途中部(參照圖3及圖4)。於後框架55之中間部,焊接固定有左右兩根縱框架62之上端側。於左右兩縱框架62之下端側,焊接固定有左右橫長之後軸支撐框架63之中間部。後軸支撐框架63之左右兩端部被連結於後軸殼9。再者,於被向外突出設置於左側之前部框架51之踏腳板支撐台64之下方,配置有使引擎5之排氣音減小之消音器65。 As can be seen from FIG. 4, the rear portions of the left and right front frames 51 are connected to the front axle housing 7 protruding toward the left and right sides of the gearbox 6. On the center side of the intermediate connection frame 53, left and right ends of the U-shaped frame 61 extending diagonally rearward and downward in a side view are fixed by welding. The middle portion of the U-shaped frame 61 is connected to the middle portion of the cylindrical frame 8 connecting the transmission case 6 and the rear axle housing 9 (see FIGS. 3 and 4). Upper end sides of the left and right vertical frames 62 are welded and fixed to a middle portion of the rear frame 55. On the lower end sides of the left and right vertical frames 62, the middle portion of the left and right horizontally long rear axle support frames 63 is welded and fixed. Both left and right ends of the rear axle support frame 63 are connected to the rear axle case 9. Furthermore, a muffler 65 for reducing the exhaust sound of the engine 5 is disposed below the footboard support base 64 protruding outward from the left front frame 51.

如圖3及圖4所示,於被配置在引擎5之後方之變速箱6之前部,設置有動力轉向單元66。雖然細節省略,但於被直立設置在動力轉向單元66之上表面之把手柱之內部,可進行轉動地配置有把手軸。於把手軸之上端側固定有操縱把手14。於動力轉向單元66之下表面側,轉向輸出軸(圖示省略)向下方突出。於該操舵輸出軸,分別連結有對左右之前車輪3進行操舵之操舵桿68(參照圖4)。 As shown in FIGS. 3 and 4, a power steering unit 66 is provided at the front of the transmission 6 disposed behind the engine 5. Although details are omitted, a handle shaft is rotatably disposed inside a handle post that is erected on the upper surface of the power steering unit 66. An operating handle 14 is fixed to the upper end side of the handle shaft. On the lower surface side of the power steering unit 66, a steering output shaft (not shown) protrudes downward. Steering levers 68 (see FIG. 4) for steering the left and right front wheels 3 are respectively connected to the steering output shafts.

實施形態之引擎5係將輸出軸70(曲柄軸)朝向左右方向而被配置於前後兩底架56之中間部上。引擎5及引擎台57之左右寬度,小於左右兩前部框架51間之內側尺寸,引擎5之下部側及引擎台57係於被配置在前後兩底架56之中間部上之狀態下,朝較左右兩前部框架51更下側露出。於該情形時,引擎5之輸出軸70(軸線)位於在側視時與左右兩前部框架51重疊之位置。於引擎5之左右一側面(在實施形態中為左側面),配置有與引擎5之排氣系 統連通之排氣管69。排氣管69之基端側被連接於引擎5之各汽缸,排氣管69之前端側被連接於消音器65之排氣入口側。 The engine 5 according to the embodiment has the output shaft 70 (crank shaft) oriented in the left-right direction and is disposed on the middle portion of the front and rear underframes 56. The left and right widths of the engine 5 and the engine stand 57 are smaller than the inner dimensions between the left and right front frames 51. The lower side of the engine 5 and the engine stand 57 are arranged on the middle portion of the front and rear underframes 56. The lower side is exposed from the left and right front frames 51. In this case, the output shaft 70 (axis line) of the engine 5 is positioned to overlap the left and right front frames 51 when viewed from the side. On the left and right side surfaces (left side surface in the embodiment) of the engine 5, there are arranged exhaust pipes 69 that communicate with the exhaust system of the engine 5. The base end side of the exhaust pipe 69 is connected to each cylinder of the engine 5, and the front end side of the exhaust pipe 69 is connected to the exhaust inlet side of the muffler 65.

其次,一邊參照圖5,一邊對插秧機1之驅動系統進行說明。引擎5之輸出軸70自引擎5之左右兩側面向外突出。於輸出軸70中自引擎5左側面突出之突端部設置引擎輸出輪72,於自變速箱6朝左外側突出之變速輸入軸71設置變速輸入輪73,並於兩輪72、73捲繞傳遞皮帶。動力自引擎5經由兩輪72、73及傳遞皮帶而傳遞至變速箱6。 Next, the drive system of the rice transplanter 1 is demonstrated, referring FIG. 5. FIG. The output shaft 70 of the engine 5 projects outward from the left and right sides of the engine 5. An engine output wheel 72 is provided on the protruding end of the output shaft 70 protruding from the left side of the engine 5, and a speed change input wheel 73 is provided on the speed change input shaft 71 protruding from the gearbox 6 to the left and outside, and is wound and transmitted on the two wheels 72 and 73. Leather belt. Power is transmitted from the engine 5 to the transmission 6 via two wheels 72 and 73 and a transmission belt.

於變速箱6內,具備有由油壓泵40a及油壓馬達40b所構成之油壓無段變速機40、行星齒輪裝置41、將經由油壓無段變速機40及行星齒輪裝置41之變速動力變速成複數段之齒輪式副變速機構42、將自行星齒輪裝置41向齒輪式副變速機構42之動力傳遞加以通斷之主離合器43、及將來自齒輪式副變速機構42之輸出加以制動之移行刹車44等。利用來自變速輸入軸71之動力將油壓泵40a加以驅動,自油壓泵40a對油壓馬達40b供給作動油,而使變速動力自油壓馬達40b被輸出。油壓馬達40b之變速動力係經由行星齒輪裝置41及主離合器43被傳遞至齒輪式副變速機構42。而且,動力自齒輪式副變速機構42朝前後車輪3、4與秧苗插植裝置23之兩方向分支地被傳遞。 The transmission 6 is provided with a hydraulic stepless speed changer 40 composed of a hydraulic pump 40a and a hydraulic motor 40b, a planetary gear device 41, and a speed change via the hydraulic stepless speed changer 40 and the planetary gear device 41. Gear-type auxiliary transmission mechanism 42 in which power is shifted into a plurality of stages, a main clutch 43 that switches power transmission from planetary gear device 41 to gear-type auxiliary transmission mechanism 42, and brakes output from the gear-type auxiliary transmission mechanism 42 The shift brakes 44 and so on. The hydraulic pump 40a is driven by the power from the variable speed input shaft 71, and the hydraulic oil is supplied from the hydraulic pump 40a to the hydraulic motor 40b, so that the variable speed power is output from the hydraulic motor 40b. The transmission power train of the hydraulic motor 40 b is transmitted to the gear-type auxiliary transmission mechanism 42 via the planetary gear device 41 and the main clutch 43. In addition, the power self-gear-type auxiliary transmission mechanism 42 is transmitted branched in both directions of the front and rear wheels 3 and 4 and the seedling transplanting device 23.

朝向前後車輪3、4之分支動力之一部分,係自齒輪式副變速機構42經由差動齒輪機構45被傳遞至前軸殼7之前車軸36,而將左右前車輪3加以旋轉驅動。朝向前後車輪3、4之分支動力之剩餘部分,係自齒輪式副變速機構42經由萬向接頭軸46、後軸殼9內之後驅動軸47、左右一對摩擦離合器48及齒輪式傳動 機構49被傳遞至後軸殼9之後車軸37,而將左右後車輪4加以旋轉驅動。於使移行剎車44作動之情形時,由於來自齒輪式副變速機構42之輸出消失,因此前後車輪3、4一起刹車。又,於使插秧機1迴轉之情形時,使後軸殼9內之迴轉內側之摩擦離合器48進行切斷作動而使迴轉內側之後車輪4自由旋轉,並藉由經動力傳遞之迴轉外側之後車輪4之旋轉驅動進行迴轉。 Part of the branch power toward the front and rear wheels 3 and 4 is transmitted from the gear-type auxiliary transmission mechanism 42 to the front axle 36 of the front axle housing 7 via the differential gear mechanism 45, and the left and right front wheels 3 are rotationally driven. The remainder of the branch power toward the front and rear wheels 3, 4 is from the gear-type auxiliary transmission mechanism 42 via the universal joint shaft 46, the rear drive shaft 9, the drive shaft 47, the left and right friction clutches 48, and the gear-type transmission mechanism 49. It is transmitted to the axle 37 behind the rear axle housing 9, and the left and right rear wheels 4 are rotationally driven. When the traveling brake 44 is actuated, the output from the gear-type auxiliary transmission mechanism 42 disappears, so the front and rear wheels 3 and 4 are braked together. When the rice transplanter 1 is rotated, the friction clutch 48 on the inside of the rotation inside the rear axle housing 9 is cut off to rotate the wheel 4 after the inside of the rotation, and the wheel behind the outside is rotated by the power transmission. The rotation drive of 4 makes the rotation.

於後軸殼9內具備有轉子驅動單元86,該轉子驅動單元86具有使對整地轉子85之動力通斷用之整地轉子離合器。自齒輪式副變速機構42被傳遞至萬向接頭軸46之動力,亦分支而被傳遞至轉子驅動單元86,動力自轉子驅動單元86經由萬向接頭軸87被傳遞至整地轉子85。藉由整地轉子85之旋轉驅動使田面被整平。 A rotor drive unit 86 is provided in the rear axle housing 9. The rotor drive unit 86 includes a ground preparation rotor clutch for turning on and off the power to the ground preparation rotor 85. The power of the self-gear type auxiliary transmission mechanism 42 is transmitted to the universal joint shaft 46, and is also branched and transmitted to the rotor drive unit 86. The power is transmitted from the rotor drive unit 86 to the ground preparation rotor 85 via the universal joint shaft 87. The field surface is leveled by the rotational driving of the ground preparation rotor 85.

朝向秧苗插植裝置23之分支動力係經由附萬向接頭軸之輔助動力輸出(PTO,Power Take Off)傳動軸機構74被傳遞至株距變速箱75。於株距變速箱75內具備有:株距變速機構76,其將要被插植之秧苗之株距切換為例如稀疏種植、標準種植或密集種植等;及插植離合器77,其將對秧苗插植裝置23之動力傳遞加以通斷。被傳遞至株距變速箱75之動力係經由株距變速機構76、插植離合器77及萬向接頭軸78被傳遞至插植輸入箱26。 The branch power system toward the seedling transplanting device 23 is transmitted to the plant distance transmission 75 via a power take-off (PTO) drive shaft mechanism 74 with a universal joint shaft. In the plant distance transmission 75 are provided: a plant distance transmission mechanism 76 that switches the plant distance of the seedlings to be transplanted to, for example, sparse planting, standard planting or dense planting; and a planting clutch 77 that will plant the planting plant 23 The power transmission is switched on and off. The power train transmitted to the plant distance transmission 75 is transmitted to the plant input box 26 via the plant distance transmission mechanism 76, the planting clutch 77, and the universal joint shaft 78.

於插植輸入箱26內具備有:橫向進給機構79,其使秧苗載置台橫向進給移動;秧苗縱向進給機構80,其將秧苗載置台29上之秧苗墊加以縱向進給搬送;及插植輸出軸81,其將動力自插植輸入箱26傳遞至各插植傳動箱27。藉由被傳遞至插植輸入箱26之動力來驅動橫向進給機構79及秧苗縱向進給機構80,使秧苗載置台29連續地且往返地橫向進給移動,並於秧苗載置台29到達 往返移動端(往返移動之折返點)時,將秧苗載置台29上之秧苗墊間歇地加以縱向進給搬送。自插植輸入箱26經由插植輸出軸81之動力係傳遞至各插植傳動箱27,將各插植傳動箱27之旋轉箱31及插植爪30加以旋轉驅動。再者,於設置施肥裝置之情形時,動力自株距變速箱75被傳遞至施肥裝置。 Inside the planting input box 26 are provided: a lateral feeding mechanism 79 that moves the seedling mounting table laterally; a seedling longitudinal feeding mechanism 80 that feeds the seedling pads on the seedling mounting table 29 longitudinally; and The planting output shaft 81 transmits power from the planting input box 26 to each planting transmission box 27. The lateral feeding mechanism 79 and the seedling longitudinal feeding mechanism 80 are driven by the power transmitted to the planting input box 26, so that the seedling placing table 29 is continuously and reciprocally moved laterally, and the seedling placing table 29 reaches the back and forth At the moving end (the turning point of the reciprocating movement), the seedling pads on the seedling mounting table 29 are intermittently fed and conveyed longitudinally. The self-planting input box 26 is transmitted to each planting transmission box 27 through the power system of the planting output shaft 81, and the rotation box 31 and the planting claw 30 of each planting transmission box 27 are rotationally driven. When a fertilizing device is installed, the power is transmitted from the plant-to-plant transmission 75 to the fertilizing device.

其次,一邊參照圖1、圖4及圖6以下,一邊對籠式車輪100、作為移行車輪之後車輪4及內側輔助車輪120之詳細構造進行說明。於該實施形態之插秧機1中,自左右內側起依序配置有內側輔助車輪120、後車輪4、及籠式車輪100。 Next, the detailed structure of the cage wheel 100, the rear wheel 4 and the inner auxiliary wheel 120 as the traveling wheels will be described with reference to FIGS. 1, 4, and 6 below. In the rice transplanter 1 of this embodiment, the inner auxiliary wheels 120, the rear wheels 4, and the cage wheels 100 are sequentially arranged from the left and right inner sides.

左右之內側輔助車輪120具備有:輪轂筒部121,其位於旋轉中心部;環狀之輪緣部122;及輪輻部123,其自輪轂筒部121呈放射狀地延伸並將輪轂筒部121與輪緣部122相連。於輪緣部122,藉由於周圍燒接硬質橡膠而形成橡膠輪體124及突起狀之複數個外周凸出部125。後車軸37之前端側(左右外側)成為六角軸形狀,於後車軸37之六角軸部37a覆蓋嵌合有內側輔助車輪120之輪轂筒部121。 The left and right inner auxiliary wheels 120 include a hub tube portion 121 located at the center of rotation, an annular flange portion 122, and a spoke portion 123 extending radially from the hub tube portion 121 and extending the hub tube portion 121. Connected to the rim portion 122. At the rim portion 122, a rubber wheel body 124 and a plurality of protrusion-shaped outer peripheral protrusions 125 are formed by hard rubber being fired around. The front end side (left and right outer sides) of the rear axle 37 has a hexagonal shaft shape, and the hexagonal shaft portion 37 a of the rear axle 37 covers the hub cylindrical portion 121 fitted with the inner auxiliary wheel 120.

左右之後車輪4具備有:輪轂筒部93,其位於旋轉中心部;環狀之輪緣部90;輪輻部94,其自輪轂筒部93呈放射狀地延伸並將輪轂筒部93與輪緣部90相連;以及補強板部95,其係焊接於輪轂筒部93及輪輻部94。於輪緣部90,藉由於周圍燒接硬質橡膠而形成橡膠輪體91、板狀之複數個推進凸出部92、及突起狀之複數個外周凸出部96。各推進凸出部92係沿著橡膠輪體91之圓周方向以適當間隔被形成於橡膠輪體91。又,各推進凸出部92以於側視時外周側端部側位於較內周側端部側更靠移行機體2之前進時之旋轉方向上游側的方式傾斜。換言之,各推進凸出部92以於側視時,隨著離開輪緣部90之旋轉中心而朝向移行機體2之前進時之旋轉方向上游側移位的方式傾斜。於該實施形態中,11個推進凸出部92等間隔地被配置於橡膠輪體91。 The left and right rear wheels 4 are provided with a hub tube portion 93 located at the center of rotation; an annular rim portion 90; and a spoke portion 94 extending radially from the hub tube portion 93 and connecting the hub tube portion 93 and the rim The parts 90 are connected; and the reinforcing plate part 95 is welded to the hub barrel part 93 and the spoke part 94. At the rim portion 90, a rubber wheel body 91, a plurality of plate-shaped plurality of pushing protrusions 92, and a plurality of protrusion-shaped plurality of peripheral protrusions 96 are formed by hard rubber being fired around. Each of the pushing protrusions 92 is formed in the rubber wheel body 91 at appropriate intervals along the circumferential direction of the rubber wheel body 91. Further, each of the propulsion projections 92 is inclined such that the outer peripheral side end portion side is located closer to the upstream side in the rotation direction when the traveling body 2 moves forward than the inner peripheral side end portion side in a side view. In other words, each of the pushing protrusions 92 is inclined so as to shift toward the upstream side in the rotation direction when the traveling body 2 moves forward as it moves away from the center of rotation of the rim portion 90 when viewed from the side. In this embodiment, the eleven pushing protrusions 92 are arranged on the rubber wheel body 91 at regular intervals.

後車輪4之輪轂筒部93係於較內側輔助車輪120之輪轂筒部121更外側之位置,被覆蓋嵌合於後車軸37之六角軸部37a。於六角軸部37a,在內側輔助車輪120之輪轂筒部121與後車輪4之輪轂筒部93之間,亦覆蓋嵌合有筒狀之間隔構件126。藉由後車輪4之輪轂筒部93以鎖定銷軸131及止動銷132無法脫落地被固定於後車軸37之六角軸部37a,使間隔構件126及內側輔助車輪120之輪轂筒部121亦無法脫落地被保持於後車軸37之六角軸部37a。於後車軸37之六角軸部37a之前端面,有直徑較後車輪4之輪轂筒部93之內徑大之墊圈133係藉由螺栓134所固定。 The hub tube portion 93 of the rear wheel 4 is positioned further outside than the hub tube portion 121 of the inner auxiliary wheel 120, and is covered and fitted to the hexagonal shaft portion 37 a of the rear axle 37. A cylindrical spacer member 126 is also fitted to the hexagonal shaft portion 37 a between the hub cylindrical portion 121 of the inner auxiliary wheel 120 and the hub cylindrical portion 93 of the rear wheel 4. The hub cylindrical portion 93 of the rear wheel 4 is fixed to the hexagonal shaft portion 37a of the rear axle 37 with the lock pin 131 and the stop pin 132 incapable of falling off, so that the spacer member 126 and the hub cylindrical portion 121 of the inner auxiliary wheel 120 cannot be used. The hexagonal shaft portion 37 a of the rear axle 37 is detachably held. A washer 133 having a larger diameter than the inner diameter of the hub cylindrical portion 93 of the rear wheel 4 is fixed to the front end surface of the hexagonal shaft portion 37a of the rear axle 37 by a bolt 134.

於各後車輪4之補強板部95之左右外側面,螺栓緊固有延長車軸110。延長車軸110具備有:凸緣部111,其係螺栓緊固於補強板部95;延長車軸部112,其係突出設置於凸緣部111之左右外側面之中央部;及3個肋部113,其等係焊接於凸緣部111之左右外側面及延長車軸部112之基端部。延長車軸部112係與後車軸37被配置於同一軸線上。延長車軸部112之前端側(左右外側)成為六角軸形狀之六角軸部112a。 On the left and right outer sides of the reinforcing plate portion 95 of each of the rear wheels 4, an extension axle 110 is fastened by bolts. The extension axle 110 is provided with a flange portion 111 that is bolted to the reinforcing plate portion 95, an extension axle portion 112 that is centrally provided on the left and right outer side surfaces of the flange portion 111, and three ribs 113 , Etc. are welded to the left and right outer sides of the flange portion 111 and the base end portion of the extension axle portion 112. The extended axle portion 112 is disposed on the same axis as the rear axle 37. The hexagonal shaft portion 112 a in the shape of a hexagonal shaft is formed on the front end side (left and right outer sides) of the extended axle portion 112.

於各後車輪4,經由延長車軸110分別裝卸自如地安裝有籠式車輪100。各籠式車輪100具備有:輪轂筒部101,其位於旋轉中心部;環狀之輪緣部102;4根輪輻部103,其等自輪轂筒部101呈放射狀延伸並將輪轂筒部101與輪緣部102相連;4個補 強板部104,其等係焊接於輪轂筒部101及輪輻部103;以及複數個籠式車輪凸出部105,其等沿著輪緣部102之圓周方向以適當間隔被設置於輪緣部102。 Cage wheels 100 are detachably attached to each rear wheel 4 via an extension axle 110. Each cage wheel 100 is provided with a hub tube portion 101 located at the center of rotation; an annular rim portion 102; and four spoke portions 103 extending radially from the hub tube portion 101 and having the hub tube portion 101 Connected to the rim part 102; 4 patches The strong plate portion 104 is welded to the hub barrel portion 101 and the spoke portion 103; and a plurality of cage wheel protrusions 105 are provided at the rim portion at appropriate intervals along the circumferential direction of the rim portion 102. 102.

籠式車輪100之輪轂筒部101,係覆蓋嵌合於延長車軸110之六角軸部112a之前端側之部位。輪轂筒部101係藉由鎖定銷軸135及止動銷136,無法脫落地被固定於六角軸部112a。再者,構成為於六角軸部112a之前端側部位,朝軸向排列地形成有複數個可供鎖定銷軸135插入之孔,藉由適當選擇供鎖定銷軸135插入之孔,而可選擇籠式車輪100相對於後車輪4在軸向上之位置。 The hub tube portion 101 of the cage wheel 100 covers a portion fitted on the front end side of the hexagonal shaft portion 112 a of the extension axle 110. The hub tube portion 101 is fixed to the hexagonal shaft portion 112a by a lock pin shaft 135 and a stop pin 136 so as not to be able to fall off. In addition, a plurality of holes through which the locking pin 135 can be inserted are formed in an axial arrangement at the front end portion of the hexagonal shaft portion 112a, and can be selected by appropriately selecting the holes into which the locking pin 135 is inserted. The position of the cage wheel 100 with respect to the rear wheel 4 in the axial direction.

於該實施形態中,籠式車輪凸出部105之數量與後車輪4之推進凸出部92之數量(11個)不同,且於籠式車輪100之輪緣部102等間隔地設置有10個板狀之籠式車輪凸出部105。各籠式車輪凸出部105以於側視時外周側端部105a側位於較內周側端部105c側更靠移行機體2之前進時之旋轉方向上游側的方式傾斜。換言之,各籠式車輪凸出部105以於側視時,隨著離開輪緣部102之旋轉中心而朝向移行機體2之前進時之旋轉方向上游側移位的方式傾斜。又,如圖6所示,籠式車輪凸出部105之外周側端部105a係與輪緣部102之間隔著間隔地被設置,且在籠式車輪100之半徑方向上被配置於最外位置。 In this embodiment, the number of the cage wheel protrusions 105 is different from the number (11) of the propulsion protrusions 92 of the rear wheel 4, and 10 is provided at regular intervals on the rim portion 102 of the cage wheel 100. Plate-shaped cage wheel protrusions 105. Each cage wheel protrusion 105 is inclined so that the outer peripheral side end 105a side is located closer to the upstream side in the direction of rotation when the traveling body 2 moves forward than the inner peripheral side end portion 105c side when viewed from the side. In other words, each cage wheel protrusion 105 is inclined so as to shift toward the upstream side in the rotation direction when the traveling body 2 moves forward as it moves away from the center of rotation of the rim portion 102 when viewed from the side. As shown in FIG. 6, the outer peripheral end portion 105 a of the cage wheel protruding portion 105 is provided at a distance from the rim portion 102, and is arranged at the outermost portion in the radial direction of the cage wheel 100. position.

如圖10所示,各籠式車輪凸出部105具有於側視時大致S字狀之形狀。籠式車輪凸出部105之外周側端部105a,相對於凸出部中央部105b朝向輪緣部102之旋轉中心側彎曲,而外周側端部105a之傾斜角度θa大於凸出部中央部105b之傾斜角度θb。又,籠式車輪凸出部105之內周側端部105c,相對於凸出部中央部105b朝向與輪緣部102之旋轉中心相反之側彎曲,而內周側端部105c之傾斜角度θc大於凸出部中央部105b之傾斜角度θb。於該實施形態中,外周側端部105a與內周側端部105c於側視時被設置為平行,而外周側端部105a之傾斜角度θa與內周側端部105c之傾斜角度θc相同。籠式車輪凸出部105由於外周側端部105a及內周側端部105c彎曲,因此可提高籠式車輪凸出部105之強度。 As shown in FIG. 10, each cage wheel protrusion 105 has a substantially S-shape when viewed from the side. The outer peripheral end portion 105a of the cage wheel protruding portion 105 is bent toward the rotation center side of the rim portion 102 with respect to the central portion 105b of the protruding portion, and the inclination angle θa of the outer peripheral end portion 105a is larger than the central portion 105b of the protruding portion. The inclination angle θb. Further, the inner peripheral side end portion 105c of the cage wheel protruding portion 105 is bent toward the side opposite to the rotation center of the rim portion 102 with respect to the central portion 105b of the protruding portion, and the inclination angle θc of the inner peripheral side portion 105c is The inclination angle θb is larger than the central portion 105b of the protruding portion. In this embodiment, the outer peripheral side end portion 105a and the inner peripheral side end portion 105c are arranged parallel when viewed from the side, and the inclination angle θa of the outer peripheral side end portion 105a is the same as the inclination angle θc of the inner peripheral side end portion 105c. Since the cage wheel protrusion 105 is curved at the outer peripheral end portion 105a and the inner peripheral side end portion 105c, the strength of the cage wheel projection 105 can be increased.

如圖7所示,籠式車輪凸出部105係與後車輪4分隔開地被配置。藉此,於後車輪4與籠式車輪凸出部105(籠式車輪100)之間設置有間隙。又,於車輪4、100、120之旋轉軸方向上,籠式車輪凸出部105之寬度W100較後車輪之寬度W4及內側輔助車輪120之寬度W120寬。再者,內側輔助車輪120之寬度W120較後車輪之寬度W4窄。 As shown in FIG. 7, the cage wheel protrusion 105 is disposed separately from the rear wheel 4. Thereby, a gap is provided between the rear wheel 4 and the cage wheel protrusion 105 (cage wheel 100). Further, in the rotation axis direction of the wheel 4,100,120, the cage portion 105 of the wheel after the projection width W 100 than the width W 4 of the wheel and an inner width 120 of the auxiliary wheel width W is 120. Furthermore, the width W 120 of the inner auxiliary wheel 120 is narrower than the width W 4 of the rear wheel.

又,於車輪4、100、120之旋轉軸方向上,籠式車輪凸出部105之寬度W100較後車輪4(推進凸出部92)之寬度W4及內側輔助車輪120之寬度W120寬。再者,內側輔助車輪120之寬度W120較後車輪之寬度W4窄。於該實施形態之插秧機1中,籠式車輪凸出部105之寬度W100係後車輪之寬度W4之2倍以上,且如圖11所示,被設定為略微地較秧苗之插植寬度Wp寬。 Further, in the rotation axis direction of the wheel 4,100,120, the cage wheel width 105 of the projecting portion 100 than the rear wheel W 4 (advancing projection 92) of the width W and the inner width W 4 120 120 of the auxiliary wheel width. Furthermore, the width W 120 of the inner auxiliary wheel 120 is narrower than the width W 4 of the rear wheel. In the rice transplanter 1 of this embodiment, the width W 100 of the cage wheel protrusion 105 is more than twice the width W 4 of the rear wheel, and as shown in FIG. 11, it is set to be slightly larger than the planting of the seedling. The width Wp is wide.

籠式車輪100之外徑尺寸D100(亦可稱為直徑)設定為小於後車輪4之外徑尺寸D4。亦即,籠式車輪100成為於側視時可收在後車輪4之內徑側之大小。因此,可抑制於在道路上移行時籠式車輪100(尤其是籠式車輪凸出部105)與移行路面接觸之可能性,且即便於安裝有籠式車輪100之狀態下亦可藉由移行機體2平順地於道路上移行。再者,於該實施形態中,內側輔助車輪120之外徑尺寸D120與籠式車輪100之外徑尺寸D100相同,且即便於安裝有內側輔助車輪120之狀態下亦可藉由移行機體2平順地於道路上 移行。 An outer diameter dimension D 100 (also referred to as a diameter) of the cage wheel 100 is set to be smaller than an outer diameter dimension D 4 of the rear wheel 4 . That is, the cage wheel 100 has a size that can be received on the inner diameter side of the rear wheel 4 when viewed from the side. Therefore, the possibility that the cage wheel 100 (especially the cage wheel protrusion 105) comes into contact with the road surface when traveling on the road can be suppressed, and the movement can be performed even when the cage wheel 100 is installed The body 2 moves smoothly on the road. Furthermore, in this embodiment, the outer diameter D 120 of the inner auxiliary wheel 120 is the same as the outer diameter D 100 of the cage wheel 100, and the moving body can be moved even when the inner auxiliary wheel 120 is installed. 2Move smoothly on the road.

如圖11所示,左右之籠式車輪100之輪緣部102之位置係設定為各輪緣部102之移動軌跡不與秧苗插植裝置23之各插植爪30之部位重疊。於該實施形態中,籠式車輪100之輪緣部102之位置係設定為左右各輪緣部102之移動軌跡於俯視時不與左起第1個及第8個插植爪30重疊。藉此,可抑制由各輪緣部102所導致田面遭破壞而影響到由秧苗插植裝置23(各插植爪30)所進行秧苗之插植姿勢之情形。再者,由於以適當間隔被設置於輪緣部90之複數個籠式車輪凸出部105並不會將田面過度地破壞,因此即便籠式車輪凸出部105之移動軌跡與插植爪30之部位(秧苗之插植位置)重疊,亦可僅利用整地轉子85之整地作用便將秧苗以良好之插植姿勢進行移植。又,被設定為左右之後車輪4及內側輔助車輪120之移動軌跡亦不與各插植爪30之部位重疊,而抑制由後車輪4及內側輔助車輪120所導致田面遭破壞而影響到秧苗之插植姿勢之情形。 As shown in FIG. 11, the positions of the rim portions 102 of the left and right cage wheels 100 are set such that the movement trajectories of the rim portions 102 do not overlap the positions of the planting claws 30 of the seedling planting device 23. In this embodiment, the position of the rim portion 102 of the cage wheel 100 is set such that the movement trajectories of the left and right rim portions 102 do not overlap the first and eighth insertion claws 30 from the left when viewed in plan. Thereby, it is possible to suppress a situation where the field surface is damaged by the rim portions 102 and the influence on the planting posture of the seedlings by the seedling planting device 23 (each planting claw 30) can be suppressed. Furthermore, since the plurality of cage wheel protrusions 105 provided on the rim portion 90 at appropriate intervals do not excessively damage the field surface, even if the movement track of the cage wheel protrusion 105 and the planting claw 30 The parts (planting positions of the seedlings) overlap, and the seedlings can also be transplanted in a good planting position only by using the ground preparation action of the ground preparation rotor 85. In addition, the movement trajectories of the wheels 4 and the inner auxiliary wheels 120 after being left and right are not overlapped with the positions of the planting claws 30, and the field surface damage caused by the rear wheels 4 and the inner auxiliary wheels 120 is suppressed, which affects the seedling Situation of planting posture.

圖12係表示籠式車輪凸出部之移動軌跡之示意圖。圖12係表示車輪4不打滑地移行之情形時,左右之籠式車輪100中左側之籠式車輪100的籠式車輪凸出部105之移動軌跡。籠式車輪凸出部105於進入至農田之土141中時成為大致水平姿勢並確實地擠壓土141,而產生較大之浮力。又,籠式車輪凸出部105於上升時成為大致垂直姿勢,自土141中朝向大致正上方上升,而不會夾帶土141。 FIG. 12 is a schematic diagram showing a movement trajectory of a projection of a cage wheel. FIG. 12 shows the movement trajectory of the cage wheel protrusion 105 of the left cage wheel 100 among the left and right cage wheels 100 when the wheel 4 moves without slipping. When the cage wheel protruding portion 105 enters the soil 141 in the farmland, the cage wheel protruding portion 105 assumes a substantially horizontal posture and firmly squeezes the soil 141 to generate a large buoyancy. In addition, the cage wheel protruding portion 105 assumes a substantially vertical posture when rising, and rises from the soil 141 toward almost immediately above without entraining the soil 141.

該實施形態之插秧機1具備有裝卸自如地被安裝於作為移行車輪之後車輪4之籠式車輪100,籠式車輪100具備有環 狀之輪緣部102、及沿著輪緣部102之圓周方向以適當間隔被設置於輪緣部102之複數個籠式車輪凸出部105,籠式車輪凸出部105以外周側端部105a側位於較內周側端部105c側更靠移行機體2之前進時之旋轉方向上游側的方式傾斜,而籠式車輪凸出部105之外周側端部105a朝向輪緣部102之旋轉中心側彎曲。藉此,於籠式車輪凸出部105要進入農田之土中時,由於籠式車輪凸出部105之外周側端部105a與犁底層142所成之角度θa1(參照圖12)變得更小(成為外周側端部105a傾倒之角度),因此籠式車輪凸出部105不易插入農田之犁底層142並且不易切開犁底層142。又,籠式車輪凸出部105由於外周側端部105a朝向輪緣部102之旋轉中心側彎曲,因此於籠式車輪凸出部105之上升時,不易將土夾帶至移行機體2之前進時之旋轉方向下游側之面。因此,可避免移行機體2於較深之農田或黏土質之農田中沉陷或在迴轉時破壞犁底層142使移行機體2沉陷之可能性,而可利用簡單之構成來謀求移行機體2之水田行走性能之大幅提升。又,籠式車輪凸出部105由於外周側端部105a彎曲,因此可提高籠式車輪凸出部105之強度。 The rice transplanter 1 of this embodiment includes a cage wheel 100 that is detachably attached to the rear wheel 4 as a traveling wheel. The cage wheel 100 includes a ring-shaped rim portion 102 and a circumference along the rim portion 102. A plurality of cage wheel protrusions 105 are provided on the rim portion 102 at appropriate intervals in the direction. The cage wheel protrusions 105 are located on the outer peripheral end portion 105a side of the traveling body 2 more than the inner peripheral end portion 105c side. The forward rotation direction is inclined on the upstream side, and the outer peripheral end portion 105 a of the cage wheel protruding portion 105 is bent toward the rotation center side of the rim portion 102. As a result, when the cage wheel protrusion 105 is to enter the soil of the farmland, the angle θa1 (see FIG. 12) formed by the outer peripheral end portion 105a of the cage wheel protrusion 105 and the plow floor 142 becomes even greater. It is small (becomes the angle at which the outer peripheral side end portion 105a falls), and therefore, the cage wheel protrusion 105 is not easily inserted into the plow floor 142 of the farmland and it is difficult to cut the plow floor 142. In addition, the cage wheel projection 105 is bent toward the center of rotation of the rim portion 102 because the outer peripheral end portion 105a is bent. Therefore, when the cage wheel projection 105 is raised, it is difficult to carry the soil to the advance of the traveling body 2 The surface on the downstream side of the direction of rotation. Therefore, it is possible to avoid the possibility of the mobile body 2 sinking in deeper farmland or clay farmland or to damage the plow bottom layer 142 during the rotation to cause the mobile body 2 to sink, and a simple structure can be used to seek the paddy field walking of the mobile body 2 Significant performance improvements. In addition, since the cage wheel protrusion 105 is bent at the outer peripheral side end portion 105a, the strength of the cage wheel protrusion 105 can be increased.

然而,若插秧機1於農田中移行,便會成為利用由後車輪4、籠式車輪100之輪緣部102、及籠式車輪凸出部105所構成之3邊,將犁底層鏟起般之動作。此時,若籠式車輪凸出部105與後車輪4連結或近接,便會鏟起犁底層,而使泥土附著於籠式車輪凸出部105等。相對於此種問題,於該實施形態之插秧機1中,由於籠式車輪凸出部105與後車輪4分開地被配置,使上述3邊於途中中斷,因此泥土之帶起會變少,所以泥土不易附著,而且,由於附著於籠式車輪凸出部105之泥土容易掉落,使泥土不易堆積於 籠式車輪凸出部105,因此可實現泥脫落性良好之籠式車輪100,而可提高移行機體2之水田行走性能。 However, if the rice transplanter 1 moves in the farmland, it will become a shovel bottom by using three sides composed of the rear wheel 4, the rim portion 102 of the cage wheel 100, and the cage wheel protrusion 105. Action. At this time, if the cage wheel protrusion 105 is connected to or close to the rear wheel 4, the plough floor will be shoveled, and dirt will adhere to the cage wheel protrusion 105 and the like. In response to such a problem, in the rice transplanter 1 of this embodiment, the cage wheel protrusions 105 are arranged separately from the rear wheels 4 and the three sides are interrupted on the way, so that the carry-over of soil is reduced. Therefore, the dirt is not easy to adhere, and because the dirt attached to the cage wheel protrusion 105 is easy to fall, so that the dirt is not easily accumulated on the cage wheel protrusion 105, the cage wheel 100 having good mud-falling property can be realized, and It can improve the paddy walking performance of the mobile body 2.

又,於車輪4、100之旋轉軸方向上,由於籠式車輪凸出部105之寬度W100較後車輪4之寬度W4寬,例如為後車輪4之寬度W4之2倍以上,且較插植寬度Wp(參照圖11)寬,因此籠式車輪凸出部105所產生之浮力大幅地增加,而可抑制移行機體2於較深之農田或黏土質之農田中沉陷。 In the direction of the rotation axis of the wheels 4 and 100, the width W 100 of the cage wheel protrusion 105 is wider than the width W 4 of the rear wheel 4, for example, it is twice or more than the width W 4 of the rear wheel 4, and The width is wider than the planting width Wp (see FIG. 11), so the buoyancy generated by the cage wheel protrusion 105 is greatly increased, and the subsidence of the moving body 2 in deeper farmland or clay farmland can be suppressed.

再者,籠式車輪100(籠式車輪凸出部105)相對於左右外側之插植爪30之秧苗插植位置的外側突出寬度Wo(參照圖11)較佳為較插植寬度Wp窄。藉此,於秧苗插植作業中插秧機1在農田中往返移動時,可使得籠式車輪100(籠式車輪凸出部105)不會踩踏到已被插植至農田之鄰接行上之秧苗。例如,於將6行插植用之秧苗插植裝置23連結在上述實施形態之移行機體2之情形時,被裝設於後車輪4之左右外側之籠式車輪100之籠式車輪凸出部105之外側突出寬度Wo,相較於8行插植用之秧苗插植裝置23之連結時變大。於該情形時,外側突出寬度Wo係設定為籠式車輪凸出部105不會踩踏到鄰接行上之秧苗之值。例如,具有相較於上述實施形態之籠式車輪凸出部105寬度W100較窄之籠式車輪凸出部105的籠式車輪100,被裝設於左右之後車輪4。 The cage wheel 100 (cage wheel projection 105) has a width W o (refer to FIG. 11) that is narrower than the planting width Wp with respect to the planting position of the planting claws 30 on the left and right outer sides. . Thereby, when the rice transplanter 1 moves back and forth in the field during the seedling transplanting operation, the cage wheel 100 (cage wheel protruding part 105) can be prevented from stepping on the seedlings that have been planted on adjacent rows of the field . For example, in a case where the seedling transplanting device 23 for 6-row transplanting is connected to the traveling body 2 of the above-mentioned embodiment, the cage wheel protrusions of the cage wheels 100 mounted on the left and right outer sides of the rear wheel 4 are installed. The projecting width W o on the outer side of 105 is larger than when the seedling transplanting device 23 for 8-row transplanting is connected. In this case, the outer protrusion width W o is set to a value such that the cage wheel protrusions 105 do not step on the seedlings on the adjacent rows. For example, a cage wheel 100 having a cage wheel protrusion 105 having a width W 100 narrower than that of the cage wheel protrusion 105 of the above embodiment is mounted on the left and right rear wheels 4.

又,後車輪4具備有沿著後車輪4之圓周方向以適當間隔排列之複數個推進凸出部92,由於籠式車輪凸出部105之數量與推進凸出部92之數量不同,因此可使籠式車輪凸出部105之相位與推進凸出部92之相位錯開,而使泥土不易堆積於籠式車輪凸出部105與後車輪4之間,可提高移行機體2之水田行走性能。又,於該實施形態中,由於籠式車輪凸出部105之數量少於推進凸出部92之數量,因此於籠式車輪100中,可擴寬於輪緣部102之圓周方向上相鄰之籠式車輪凸出部105彼此之間隔,而可使較後車輪4容易夾帶泥土之籠式車輪100之泥土之脫落性變良好。 In addition, the rear wheel 4 includes a plurality of propulsion projections 92 arranged at appropriate intervals along the circumferential direction of the rear wheel 4. Since the number of the cage wheel projections 105 and the number of the projection projections 92 are different, it is possible to The phase of the cage wheel protrusion 105 and the phase of the propulsion protrusion 92 are staggered, so that it is difficult for dirt to accumulate between the cage wheel protrusion 105 and the rear wheel 4, which can improve the paddy walking performance of the traveling body 2. Further, in this embodiment, since the number of the cage wheel projections 105 is smaller than the number of the projection protrusions 92, the cage wheel 100 can be widened adjacent to the circumferential direction of the rim portion 102. The cage wheel protrusions 105 are spaced apart from each other, so that the soil of the cage wheel 100 which is easier to entrain dirt in the rear wheel 4 can be improved.

又,由於籠式車輪100係經由延長車軸110被安裝於後車輪4,因此可將籠式車輪100牢固地安裝於後車輪4。又,由於籠式車輪100係可謀求移行機體2之水田行走性能之大幅提高者,且可容易地加以卸除,因此例如在卡車等之載物台搭載插秧機1而進行搬運時,可不與左右之傾斜板或跳板干涉地將插秧機1平順地加以搭載。又,亦可不裝設內側輔助車輪120,而於後車輪4之左右外側僅安裝籠式車輪100。又,例如亦可設為除了後車輪4外,僅利用籠式車輪100及內側輔助車輪120來支撐移行機體2之後部之構成。 Moreover, since the cage wheel 100 is attached to the rear wheel 4 via the extension axle 110, the cage wheel 100 can be firmly attached to the rear wheel 4. In addition, since the cage wheel 100 is capable of greatly improving the paddy field running performance of the traveling body 2 and can be easily removed, for example, when the rice transplanter 1 is carried on a stage such as a truck, it can be dispensed with. The left and right inclined boards or spring boards interfere with the rice transplanter 1 to be smoothly mounted. In addition, the inner auxiliary wheels 120 may not be installed, and only the cage wheels 100 may be installed on the left and right outer sides of the rear wheels 4. For example, in addition to the rear wheels 4, only the cage wheels 100 and the inner auxiliary wheels 120 may be used to support the rear portion of the traveling body 2.

又,於該實施形態中,如圖10所示,雖然籠式車輪凸出部105之外周側端部105a之傾斜角度θb及內周側端部105c之傾斜角度θc相同,但外周側端部105a之傾斜角度θb與內周側端部105c之傾斜角度θc亦可互不相同。又,內周側端部105c相對於凸出部中央部105b既可不彎曲,亦可朝向輪緣部102之旋轉中心側彎曲。 In this embodiment, as shown in FIG. 10, although the inclination angle θb of the outer peripheral side end portion 105a and the inclination angle θc of the inner peripheral side end portion 105c of the cage wheel protruding portion 105 are the same, the outer peripheral side end portion The inclination angle θb of 105a and the inclination angle θc of the inner peripheral side end portion 105c may be different from each other. In addition, the inner peripheral side end portion 105c may not be bent with respect to the protruding portion central portion 105b, and may be bent toward the rotation center side of the rim portion 102.

又,於該實施形態中,雖然籠式車輪凸出部105之外周側端部105a之傾斜角度θa及內周側端部105c之傾斜角度θc大於後車輪4之推進凸出部92之傾斜角度θd(參照圖10),但亦可為傾斜角度θd以下。又,於該實施形態中,雖然凸出部中央部105b之傾斜角度θb小於推進凸出部92之傾斜角度θd,但亦可為傾斜角 度θd以上。 Moreover, in this embodiment, although the inclination angle θa of the outer peripheral side end portion 105a of the cage wheel protruding portion 105 and the inclination angle θc of the inner peripheral side end portion 105c are larger than the inclination angle of the propulsion protruding portion 92 of the rear wheel 4 θd (see FIG. 10), but may be equal to or less than the inclination angle θd. In this embodiment, although the inclination angle θb of the central portion 105b of the protruding portion is smaller than the inclination angle θd of the protruded protruding portion 92, it may be an inclination angle. Degree θd or more.

又,於該實施形態中,為了於較深之農田或黏土質之農田中得到移行機體2之浮力及推進力,而設置左右之內側輔助車輪120。內側輔助車輪120之外周凸出部125由於相較於後車輪4之推進凸出部92或籠式車輪100之籠式車輪凸出部105較小,因此可確保容易蓄積泥之後車輪4之內側之除泥性。再者,亦可為卸除內側輔助車輪120而在後車輪4之外側配置籠式車輪100之構成。 Further, in this embodiment, the left and right inner auxiliary wheels 120 are provided in order to obtain the buoyancy and the propulsive force of the traveling body 2 in a deeper farmland or a clay farmland. The outer peripheral protrusions 125 of the inner auxiliary wheel 120 are smaller than the propulsion protrusions 92 of the rear wheels 4 or the cage wheel protrusions 105 of the cage wheels 100, so it is possible to ensure that the inside of the wheels 4 after the mud is easily accumulated Desmutting. Further, a configuration in which the cage wheel 100 is disposed outside the rear wheel 4 in order to remove the inner auxiliary wheel 120 may be used.

本發明並不限於前述之實施形態,可具體化為各種樣態,各部之構成並非被限定於圖示之實施形態者,可於不脫離本發明主旨之範圍內進行各種變更。例如本發明並不限定於應用在乘坐式插秧機,亦可應用於主要在水田中進行作業之各種秧苗移植機等作業車輛。又,亦可選擇各種插秧機1之前車輪3之變異(variation)。例如既可設為寬幅車輪,亦可於左右各排列而設置兩個一般的前車輪3。又,亦可於作為移行車輪之前車輪3之左右外側安裝專用之籠式車輪、例如與籠式車輪100相同構成之籠式車輪。藉此,皆可擴大與作為前車輪3之農田之設置幅度,而對水田行走性能之提升有貢獻。 The present invention is not limited to the aforementioned embodiments, and may be embodied in various aspects. The configuration of each part is not limited to the illustrated embodiment, and various changes can be made without departing from the spirit of the present invention. For example, the present invention is not limited to being applied to ride-on rice transplanters, but can also be applied to working vehicles such as various seedling transplanters that mainly operate in paddy fields. In addition, variations of the wheels 3 before the rice transplanter 1 may be selected. For example, it may be a wide wheel, or two general front wheels 3 may be arranged on each side. In addition, dedicated cage wheels, such as cage wheels having the same configuration as the cage wheel 100, may be mounted on the left and right outer sides of the wheel 3 before the traveling wheels. With this, it is possible to expand the setting range of the farmland as the front wheel 3, and contribute to the improvement of the paddy field walking performance.

Claims (3)

一種作業車輛,係具備有支撐移行機體之移行車輪者;其具備有裝卸自如地被安裝於上述移行車輪之籠式車輪,上述籠式車輪具備有環狀之輪緣部及複數個籠式車輪凸出部,該等複數個籠式車輪凸出部係沿著上述輪緣部之圓周方向以適當間隔被設置於上述輪緣部,上述籠式車輪凸出部以於側視時外周側端部側位於較內周側端部側更靠上述移行機體之前進時之旋轉方向上游側的方式傾斜,上述籠式車輪凸出部之外周側端部朝向上述輪緣部之旋轉中心側彎曲,上述外周側端部係與上述輪緣部之間隔開間隔地被設置,且在上述籠式車輪之半徑方向上被配置於最外位置。A working vehicle is provided with a traveling wheel supporting a traveling body. The operating vehicle is provided with a cage wheel detachably mounted on the traveling wheel. The cage wheel is provided with an annular rim portion and a plurality of cage wheels. Projections, the plurality of cage wheel projections are provided on the rim portion at appropriate intervals along the circumferential direction of the rim portion, and the cage wheel projections are provided at the outer peripheral side ends when viewed from the side. The side of the cage wheel is inclined closer to the upstream side of the rotation direction of the traveling body than the inner peripheral end side, and the outer peripheral end of the cage wheel projection is bent toward the center of rotation of the rim portion. The outer peripheral side end portion is provided at a distance from the rim portion, and is disposed at an outermost position in a radial direction of the cage wheel. 如請求項1之作業車輛,其中,上述籠式車輪凸出部與上述移行車輪分開地被配置。The work vehicle according to claim 1, wherein the cage wheel protrusion is disposed separately from the traveling wheel. 如請求項1或2之作業車輛,其中,於上述移行車輪之旋轉軸方向上,上述籠式車輪凸出部之寬度較上述移行車輪之寬度寬。For example, the working vehicle of claim 1 or 2, wherein the width of the protruding portion of the cage wheel is wider than the width of the moving wheel in the rotation axis direction of the moving wheel.
TW106138156A 2016-12-15 2017-11-03 Work vehicle TWI663906B (en)

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