JP3803643B2 - Energy-saving power transmission mechanism in a rotary snowplow - Google Patents

Energy-saving power transmission mechanism in a rotary snowplow Download PDF

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Publication number
JP3803643B2
JP3803643B2 JP2003033186A JP2003033186A JP3803643B2 JP 3803643 B2 JP3803643 B2 JP 3803643B2 JP 2003033186 A JP2003033186 A JP 2003033186A JP 2003033186 A JP2003033186 A JP 2003033186A JP 3803643 B2 JP3803643 B2 JP 3803643B2
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Prior art keywords
blower
transmission
power
drive shaft
snow
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JP2004244826A (en
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堀川  剛
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株式会社協和機械製作所
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Description

【0001】
【発明の属する技術分野】
本発明は、ロータリ除雪車の動力伝達機構の改善でブロワの回転速度を自動車用変速機を利用し一般的に6段階を可能とし、投雪シュートによる強制的な近距離投雪制御を減少させエネルギーの無駄を省く機構と、さらに、車両回送時に伝達効率の良い機械伝達式に切換えを可能とする機構に関するものである。
【0002】
【従来の技術】
従来のロータリ除雪車にあっては、オーガとブロワの駆動は機械式であるが、投雪距離の変更は概ね20m、30m、40mの3段階であり、20m未満の近距離投雪はブロワから出た初速度の大きい排雪を投雪シュートで強制的に制御するため必要なエネルギーが多くなり無駄になっていた。
また、オーガの回転速度は除雪速度に比例した回転速度の変速機構にはなっていないものであり、さらに、ロータリ除雪車の走行は油圧駆動のみであるため、車両回送時も油圧駆動となるため速度が上がるほどエネルギー効率は悪くなっている。(特許文献1参照)
【0003】
【特許文献1】
特開平8−197984号公報
【0004】
【発明が解決しようとする課題】
従来の技術で述べたものにあっては、下記のような問題点を有していた。
従来ロータリ除雪車において、エネルギー消費の最大のものはブロワによる投雪であるが、この消費量に影響を与えるものは除雪量と投雪距離によって決められ大きく変化する。
この中で特にエネルギー消費の大きいところは投雪距離に関わる部分で、無駄を省くには、ブロワから出た排雪の初速度を投雪シュートによる投雪距離制御としているところを、ブロワから出る排雪の初速度を多段変速とし投雪距離に見合う初速度とすることによりエネルギー消費を軽減することが可能となる。
このことから、従来のものでは、投雪距離の変更が概ね20m、30m、40mの3段階のため20m未満の場合は、ブロワから出た初速度の大きい排雪を投雪シュートで強制的に押さえて所定の位置に投雪するためエネルギー消費が大変無駄になっている。
さらに、オーガの駆動は単純に機械式で直結されているため除雪速度に比例し回転速度の自動変速機構とはなっていないものである。
一方、ロータリ除雪車の回送については、近年作業の効率化のため回送速度についても高速化が求められているが、油圧駆動のため高速になるほどエネルギー効率が悪くなるものとなっている。
【0005】
本発明は、従来の技術の有するこのような問題点に鑑みなされたものであり、その目的とするところは、上述の問題を解決できるものを提供しようとするものである。
【0006】
【課題を解決するための手段】
上記目的を達成するために、本発明は下記のようになっているものである。
車両のエンジンに直結されている変速機に動力分配機が着設され、さらに、動力変換機が配設され、該動力分配機と該動力変換機にはブロワ用の駆動軸と前車軸用駆動軸が連結され、動力変換機からはブロワ伝動機及びオーガ伝動機へ各々駆動軸が連結され、さらに、動力変換機から前車軸へ駆動軸が連結される。
一方、動力分配機から後車軸へ駆動軸が連結され、動力分配機には走行用油圧可変ポンプと走行用油圧モータが装着され除雪作業時は油圧走行に切換えられ、オーガも油圧駆動となるため除雪速度に比例したオーガ回転速度の自動変速が可能となる。
また、ブロワの回転速度においても変速機の変速操作により一般的に6段変速が可能となることから、ブロワから出る排雪の投雪距離も概ね10m、15m、20m、25m、30m、40mとすることで、投雪シュート(図示なし)による強制的な制御が減少するためエネルギー消費の無駄を省くよう構成され、さらに、ロータリ除雪車の回送時においても伝達効率の良い機械式駆動に切換えが可能となっている。
【0007】
【発明の実施の形態】
以下、本発明の実施の形態を実施例にもとづき図面を参照して説明する。
本発明のロータリ除雪車における省エネルギー形動力伝達機構は下記のように構成されている。
図1を参照して、エンジンAに直結されている変速機2の出力軸1は、動力分配機3のクラッチ20の切換操作により駆動軸11を駆動し、動力変換機4を経由し駆動軸13によりブロワ伝動機18を駆動しブロワ6を回転させる。
また、動力分配機3には走行用油圧可変ポンプ7の保全のための逆回転防止クラッチ22が着設されており、該クラッチ22を介して走行用油圧可変ポンプ7が装着され、発生した油圧を走行用油圧モータ8に伝達し、該走行用油圧モータ8の回転をクラッチ21を介して駆動軸16により後車軸10を駆動する。
同様にクラッチ21を介して駆動軸12より動力変換機4を経由し駆動軸15により前車軸9を駆動する。
また、動力変換機4内部のクラッチ19の切換操作を介して走行用油圧モータ8よりの動力を駆動軸14によりオーガ伝動機17を駆動しオーガ5を油圧で回転させる。
【0008】
上述の構成は作業時の動力伝達機構であり、ブロワ6の回転は機械式駆動となる。
オーガ5と前車軸9及び後車軸10は油圧駆動のため、オーガ5の回転は除雪速度に比例した自動変速が可能なためエネルギー消費の無駄を省くことができる。
また、オーガに過負荷が掛かり回転が停止すると同時に車両も停止するためオーガに掛かる負荷が少なく損傷を防止でき、車両後進によりオーガも逆回転するため詰まった雪の除去も容易にでき、さらに、変速機2のギヤチェンジにより出力軸を逆回転させることによりブロワ6も逆回転するため詰まった雪を容易に除去することが可能である。
【0009】
図2を参照して、図1の動力伝達を基準とし、動力変換機4内のクラッチ19の切換操作により出力軸1の動力を駆動軸11、14を介してオーガ伝動機17を駆動しオーガ5を回転可能とするもので、ロータリ除雪車が車両停止及び連続走行状態でも作業を実施可能とするもので、オーガ駆動を機械駆動としているものである。
【0010】
図3を参照して、図1の動力伝達を基準とし、クラッチ20の切換操作により出力軸1の動力を動力分配機3内の歯車の連動により駆動軸12を介して動力変換機4を経由し駆動軸15を介して前車軸9を駆動する。
また、動力分配機3より駆動軸16を介して後車軸10を駆動するもので、車両の回送時の動力伝達機構で伝達効率の良い機械式となっている。
【0011】
【発明の効果】
本発明は、上述の通り構成されているので次に記載する効果を奏する。
1.ブロワの回転速度は6段階変速を可能としたため、概ね10m以上の投雪距離に対しては、ブロワから出る排雪の初速度を投雪シュートにより強制的な制御操作が減少されるためエネルギー消費の無駄を省くことに効を奏する。
2.ロータリ除雪車の回送においては伝達効率の良い機械式となっているため、エネルギー消費の無駄を省くことに効を奏する。
3.作業時にオーガと車両走行を同一油圧駆動系統としているため、オーガに過負荷が発生し回転が停止した場合は車両も停止するためオーガに掛かる負荷が少なく損傷を防止できる。
4.変速機の後進操作によりブロワは逆回転し、ブロワに詰まった雪を容易に除去できることに効を奏する。
5.走行用油圧可変ポンプによる後進操作によりオーガは逆回転し、オーガに詰まった雪を容易に除去できることに効を奏する。
【図面の簡単な説明】
【図1】動力伝達機構の作業状態の系統図である。
【図2】動力伝達機構の車両停止及び連続作業状態の系統図である。
【図3】動力伝達機構の車両回送状態の系統図である。
【符号の説明】
A エンジン
1 出力軸
2 変速機
3 動力分配機
4 動力変換機
5 オーガ
6 ブロワ
7 走行用油圧可変ポンプ
8 走行用油圧モータ
9 前車軸
10 後車軸
11、12、13、14、15、16 駆動軸
17 オーガ伝動機
18 ブロワ伝動機
19、20、21 クラッチ
22 逆回転防止クラッチ
[0001]
BACKGROUND OF THE INVENTION
The present invention improves the power transmission mechanism of a rotary snowplow, and generally enables six stages of blower rotation speed using an automobile transmission, thereby reducing forced short-distance snow throwing control by a snow throwing chute. The present invention relates to a mechanism that eliminates waste of energy, and a mechanism that enables switching to a mechanical transmission type with good transmission efficiency when the vehicle is forwarded.
[0002]
[Prior art]
In the conventional rotary snowplow, the auger and blower are driven mechanically, but the snow throwing distance is generally changed in three stages of 20m, 30m, and 40m. The necessary energy was wasted because it was forcibly controlled by the snow throwing chute at a high initial speed.
In addition, since the rotation speed of the auger is not a speed change mechanism that is proportional to the snow removal speed, and since the rotary snow plow is only driven hydraulically, it is also hydraulically driven during vehicle rotation. The higher the speed, the worse the energy efficiency. (See Patent Document 1)
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 8-197984
[Problems to be solved by the invention]
Those described in the prior art have the following problems.
Conventionally, in a rotary snowplow, the largest energy consumption is snow blown by a blower, but what affects this consumption is largely determined by the snow removal amount and the snow throwing distance.
Of these, the part where the energy consumption is particularly large is the part related to the snow throwing distance, and in order to save waste, the part where the initial speed of snow discharge from the blower is controlled by the snow throwing chute is taken out from the blower. It is possible to reduce energy consumption by setting the initial speed of snow removal to a multi-stage shift to an initial speed commensurate with the snow throwing distance.
For this reason, in the conventional one, the change in the snow throwing distance is roughly 3 steps of 20 m, 30 m and 40 m, so if it is less than 20 m, the snow draining chute forcibly removes snow with a high initial speed from the blower. The energy consumption is very wasted because the snow is pressed and pressed into place.
Further, since the auger is simply mechanically coupled directly, it is not an automatic transmission mechanism with a rotational speed proportional to the snow removal speed.
On the other hand, with regard to the forwarding of the rotary snowplow, in recent years, there has been a demand for an increase in the forwarding speed in order to improve the efficiency of the work, but the energy efficiency becomes worse as the speed increases due to the hydraulic drive.
[0005]
The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide an apparatus capable of solving the above-described problems.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is as follows.
A power distributor is attached to a transmission that is directly connected to the engine of the vehicle, and a power converter is further provided. The power distributor and the power converter have a drive shaft for a blower and a drive for a front axle. The drive shaft is connected to the blower transmission and the auger transmission from the power converter, and the drive shaft is connected from the power converter to the front axle.
On the other hand, a drive shaft is connected from the power distributor to the rear axle, and the power distributor is equipped with a variable hydraulic pump for traveling and a hydraulic motor for traveling so that it is switched to hydraulic traveling during snow removal work, and the auger is also hydraulically driven. Automatic shifting of the auger rotation speed proportional to the snow removal speed becomes possible.
In addition, since the speed of the blower can generally be changed by six gears at the rotational speed of the blower, the snow throwing distance of the snow discharged from the blower is approximately 10 m, 15 m, 20 m, 25 m, 30 m, and 40 m. As a result, the forced control by the snow throwing chute (not shown) is reduced, so that waste of energy consumption is eliminated, and further, switching to a mechanical drive with good transmission efficiency is possible even when the rotary snowplow is routed. It is possible.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples with reference to the drawings.
The energy saving type power transmission mechanism in the rotary snowplow of the present invention is configured as follows.
Referring to FIG. 1, output shaft 1 of transmission 2 directly connected to engine A drives drive shaft 11 by switching operation of clutch 20 of power distributor 3, and drive shaft via power converter 4. 13 drives the blower transmission 18 to rotate the blower 6.
Further, the power distributor 3 is provided with a reverse rotation prevention clutch 22 for maintenance of the traveling hydraulic variable pump 7, and the traveling hydraulic variable pump 7 is attached via the clutch 22, and the generated hydraulic pressure is generated. Is transmitted to the travel hydraulic motor 8, and the rotation of the travel hydraulic motor 8 is driven by the drive shaft 16 via the clutch 21.
Similarly, the front axle 9 is driven by the drive shaft 15 from the drive shaft 12 via the power converter 4 via the clutch 21.
Further, the power from the traveling hydraulic motor 8 is driven by the drive shaft 14 through the switching operation of the clutch 19 inside the power converter 4 to drive the auger transmission 17 to rotate the auger 5 hydraulically.
[0008]
The above-described configuration is a power transmission mechanism at the time of operation, and the rotation of the blower 6 is a mechanical drive.
Since the auger 5, the front axle 9 and the rear axle 10 are hydraulically driven, the rotation of the auger 5 can be automatically shifted in proportion to the snow removal speed, so that waste of energy consumption can be saved.
In addition, overload is applied to the auger and the vehicle stops at the same time as the vehicle stops.Therefore, the load applied to the auger can be reduced and damage can be prevented. By rotating the output shaft in the reverse direction by the gear change of the transmission 2, the blower 6 also rotates in the reverse direction, so that the clogged snow can be easily removed.
[0009]
Referring to FIG. 2, based on the power transmission of FIG. 1, the auger transmission 17 is driven through the drive shafts 11, 14 by driving the auger transmission 17 by driving the clutch 19 in the power converter 4 to switch the power of the output shaft 1. The rotary snowplow can perform work even when the vehicle is stopped and continuously running, and the auger drive is a mechanical drive.
[0010]
Referring to FIG. 3, with reference to the power transmission in FIG. 1, the power of output shaft 1 is routed through power converter 4 via drive shaft 12 in conjunction with the gear in power distributor 3 by the switching operation of clutch 20. Then, the front axle 9 is driven via the drive shaft 15.
Further, the rear axle 10 is driven from the power distributor 3 via the drive shaft 16 and is a mechanical system having a high transmission efficiency by a power transmission mechanism at the time of forwarding the vehicle.
[0011]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect described below.
1. Since the rotation speed of the blower can be changed in 6 steps, energy consumption is reduced because the forced snowing chute reduces the initial speed of snow discharge from the blower for snow throwing distances of approximately 10 m or more. It is effective in eliminating waste.
2. Since the rotary snowplow is a mechanical type with good transmission efficiency, it is effective in eliminating waste of energy consumption.
3. Since the auger and the vehicle travel are the same hydraulic drive system at the time of work, when the overload is generated and the rotation is stopped, the vehicle is also stopped, so that the load applied to the auger is small and damage can be prevented.
4). The reverse operation of the transmission causes the blower to reversely rotate, which is effective in easily removing snow clogged in the blower.
5). The auger rotates reversely by the reverse operation by the traveling hydraulic variable pump, and it is effective in easily removing snow clogged in the auger.
[Brief description of the drawings]
FIG. 1 is a system diagram of a working state of a power transmission mechanism.
FIG. 2 is a system diagram of the power transmission mechanism when the vehicle is stopped and continuously operated.
FIG. 3 is a system diagram of a vehicle transmission state of a power transmission mechanism.
[Explanation of symbols]
A Engine 1 Output shaft 2 Transmission 3 Power distributor 4 Power converter 5 Auger 6 Blower 7 Traveling hydraulic variable pump 8 Traveling hydraulic motor 9 Front axle 10 Rear axles 11, 12, 13, 14, 15, 16 Drive shaft 17 Ogre transmission 18 Blower transmission 19, 20, 21 Clutch 22 Reverse rotation prevention clutch

Claims (1)

ロータリ除雪車におけるオーガ及びブロワと走行用動力の伝達機構において、車両のエンジン(A)に直結されている変速機(2)に動力分配機(3)が着設され、さらに、動力変換機(4)が配設され該動力分配機(3)と該動力変換機(4)はブロワ用の駆動軸(11)と前車軸用駆動軸(12)が連結されており、動力変換機(4)からはブロワ伝動機(18)へ駆動軸(13)が連結され、また、オーガ伝動機(17)へ駆動軸(14)が連結され、さらに、動力変換機(4)から前車軸(9)へ駆動軸(15)が連結され、一方、動力分配機(3)から後車軸(10)へ駆動軸(16)が連結され、動力分配機(3)には走行用油圧可変ポンプ(7)と走行用油圧モータ(8)が装着され除雪作業時は油圧走行に変換され、オーガ(5)も油圧駆動となり除雪速度に比例したオーガ回転速度の自動変速が可能となるよう構成され、また、ブロワ(6)の回転速度においても変速機(2)の変速操作により一般的に6段変速が可能となることからブロワから出る排雪の投雪距離も6段階となり、投雪シュートによる強制的な近距離投雪制御が減少するためエネルギー消費の無駄を省くよう構成され、さらに、ロータリ除雪車の回送時においても伝達効率の良い機械式駆動に切換えが可能となっていることを特徴とするロータリ除雪車における省エネルギー形動力伝達機構。In a transmission mechanism for auger and blower and travel power in a rotary snowplow, a power distributor (3) is attached to a transmission (2) directly connected to a vehicle engine (A), and a power converter ( 4), the power distributor (3) and the power converter (4) are connected to a drive shaft (11) for a blower and a drive shaft (12) for a front axle, and the power converter (4 ), The drive shaft (13) is connected to the blower transmission (18), the drive shaft (14) is connected to the auger transmission (17), and the front axle (9) is further connected from the power converter (4). ), And a drive shaft (16) is connected from the power distributor (3) to the rear axle (10). The power distributor (3) has a travel hydraulic variable pump (7). ) And a traveling hydraulic motor (8) are installed and converted to hydraulic traveling during snow removal work. 5) is also hydraulically driven and is configured to be capable of automatic shifting of the auger rotation speed proportional to the snow removal speed. Also, the rotation speed of the blower (6) is generally set to six stages by the shifting operation of the transmission (2). Since shifting is possible, the snow throwing distance of the snow blown from the blower is also in six stages, and the forced short-distance snow throwing control by the snow throwing chute is reduced, so that energy consumption is wasted. An energy-saving power transmission mechanism in a rotary snowplow, which can be switched to a mechanical drive with good transmission efficiency even when the snowplow is being forwarded.
JP2003033186A 2003-02-12 2003-02-12 Energy-saving power transmission mechanism in a rotary snowplow Expired - Lifetime JP3803643B2 (en)

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JP2003033186A JP3803643B2 (en) 2003-02-12 2003-02-12 Energy-saving power transmission mechanism in a rotary snowplow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003033186A JP3803643B2 (en) 2003-02-12 2003-02-12 Energy-saving power transmission mechanism in a rotary snowplow

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JP2004244826A JP2004244826A (en) 2004-09-02
JP3803643B2 true JP3803643B2 (en) 2006-08-02

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