JP6148105B2 - Auger type snow blower - Google Patents

Description

  The present invention relates to a technique for improving an auger of an auger type snow remover.

  Among the snowplows, there is a so-called auger type snowplow of a type that scrapes snow with a front auger while traveling forward, and blows the scraped snow far away through a shooter with a blower. The technology of this auger type snowplow is known from US Pat. The auger type snow remover known from Patent Document 1 is configured such that a normal rotation auger that rotates downward from the top to the front at the time of snow removal and a reverse rotation auger that rotates in the reverse direction with respect to the normal rotation auger are coaxial. And is located at the front of the fuselage.

  In general, the reversing auger rotates from the top toward the “rear and lower” during snow removal, and therefore has a strong tendency to discharge foreign matter in the snow forward and upward. That is, the occurrence of a foreign matter biting phenomenon by the reverse auger is relatively easily suppressed. On the other hand, since the forward rotation auger rotates from the top toward the “downward front” during snow removal, the biting phenomenon with respect to foreign matter tends to occur compared to the reverse rotation auger. In order to improve the efficiency of snow removal work by the auger type snow remover, it is important to suppress the occurrence of the foreign matter biting phenomenon by the forward rotation auger.

JP 2004-360379 A

  This invention makes it a subject to provide the technique which can aim at the efficiency improvement of the snow removal work by an auger type snow remover.

In the present invention , a normal rotation auger that rotates from the top to the front and lower during snow removal and a reverse rotation auger that rotates in the reverse direction with respect to the normal rotation auger are arranged on the same axis and located at the front of the aircraft. In the auger type snowplow, the forward rotating auger is formed in a spiral shape by a strip-shaped member having a predetermined width, and the spiral direction of the forward rotating auger is crushed when the forward rotating auger rotates forward. The reversing auger is formed in a spiral shape by a strip-shaped member having a predetermined width, and the reversing auger is reversed in the spiral direction of the reversing auger. when formed in a direction of gathering the crushed snow widthwise center of the machine body, the outer diameter of the reversing auger you characterized by a larger diameter than the outer diameter of the forward auger.

According to the present invention, the forward rotation auger that rotates downward from the top to the front and the reverse rotation auger that rotates in the reverse direction with respect to the forward rotation auger is arranged on the same axis, and the front part of the fuselage Is located. Since the reversing auger rotates from the top toward the “rear and lower” during snow removal, the tendency to spout foreign matter in the snow is stronger than the forward auger. That is, the occurrence of a foreign matter biting phenomenon by the reverse rotation auger is more easily suppressed than the normal rotation auger. The outer diameter of the reverse auger is set to be larger than the outer diameter of the forward auger. For this reason, a large-diameter reverse auger tends to hit a foreign object in the snow earlier than a normal rotation auger. Therefore, it is possible to suppress the occurrence of a foreign matter biting phenomenon by the forward rotation auger. As a result, the occurrence of a foreign matter biting phenomenon by all augers can be suppressed. Thus, the efficiency of the snow removal work by the auger type snow remover can be improved. In particular, the effect of suppressing the occurrence of all the biting phenomena with respect to relatively long foreign substances or large foreign substances is great.

1 is a side view of an auger type snowplow according to the present invention. It is the schematic diagram which looked at the auger drive system shown by FIG. 1 from the front of the auger type snow remover. It is the figure which looked at the auger housing and auger shown by FIG. 1 from the front of the auger type snow removal machine.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated below based on an accompanying drawing. “Front”, “Rear”, “Left”, “Right”, “Up”, “Down” follow the direction viewed from the operator, Fr is front, Rr is rear, Le is left, Ri is right Indicates.

  An auger type snowplow according to an embodiment will be described. As shown in FIG. 1, the auger snowplow 10 is a self-propelled snowplow having a machine body 11 (body frame 11) provided with a traveling device 12, a snow removal working unit 13, and a power source 14. An operation handle 15 extends from the rear part of the body 11 to the upper rear part. An operator can operate the snow removal machine 10 with the operation handle 15 while walking with the auger type snow removal machine 10 (hereinafter simply referred to as “snow removal machine 10”).

  The snow removal working unit 13 is provided in the auger housing 21, a blower housing 22 provided at the rear and at the center in the width direction, an auger 23 provided in the auger housing 21, and the blower housing 22. And a shooter 25 extending upward from the blower housing 22.

  The power source 14 drives the traveling device 12 and the snow removal working unit 13, and is constituted by an engine, for example. The power of the power source 14 is transmitted to the blower 24 through the path of the drive pulley 31, the transmission belt 32, the driven pulley 33, and the transmission shaft 34, and is transmitted from the transmission shaft 34 to the auger 23 via the transmission 35. Snow collected by the auger 23 can be blown away by the blower 24 via the shooter 25. The traveling device 12 may be driven by an electric motor.

  Hereinafter, the snow removal working unit 13 will be described in detail. The blower housing 22 is attached to the airframe 11. The blower 24 is attached to the transmission shaft 34. An input shaft 61 of the transmission 35 is connected to the distal end portion of the transmission shaft 34. The transmission 35 is located in the auger housing 21.

  As shown in FIGS. 2 and 3, the auger 23 includes left and right forward rotating augers 41 and 41 that rotate from top to front and bottom (in the direction of the arrow Ra) when removing snow with the snow remover 10 (see FIG. 1). The left and right reversing augers 42 and 42 rotate in the opposite direction (arrow Rb direction) with respect to the left and right forward rotating augers 41 and 41, respectively.

  The left and right forward augers 41 are located closer to the center of the auger housing 21 in the width direction, and are close to each other with the transmission 35 located at the width center CL interposed therebetween. The left and right reversing augers 42 and 42 are located on both sides of the auger housing 21 in the width direction. That is, the left and right reversing augers 42, 42 are located on the outer side in the width direction of the auger housing 21 with respect to the left and right forward augers 41, 41. The left forward rotation auger 41 and the left reverse rotation auger 42 are close to each other in the longitudinal direction of the shaft. The right forward auger 41 and the right reverse auger 42 are close to each other in the longitudinal direction of the shaft.

  Hereinafter, the rotation direction of the auger 23 is referred to as “forward rotation” when rotating from the top to the front and bottom, that is, in the direction of the arrow Ra (counterclockwise in FIG. 1) during snow removal by the snow remover 10. Further, rotating in the reverse direction relative to the left and right forward augers 41, 41, that is, the direction of the arrow Rb (the clockwise direction in FIG. 1) is referred to as “reverse rotation”.

  The left and right forward rotation augers 41 and 41 are provided on the left and right forward rotation shafts 43 and 43, respectively. More specifically, the left and right forward augers 41 and 41 are respectively formed in a spiral shape by two strip-shaped members having a predetermined width, and are also referred to as forward auger claws 41 and 41. The spiral direction of the left and right forward augers 41 and 41 is a direction in which crushed snow is gathered to the center in the width direction of the auger housing 21 when the left and right forward augers 41 and 41 are forwardly rotated.

  The left and right reversing augers 42, 42 are provided on the left and right reversing shafts 44, 44. More specifically, the left and right reversing augers 42 and 42 are each formed in a spiral shape by two strip-shaped members having a predetermined width, and are also referred to as reversing auger claws 42 and 42. The spiral direction of the left and right reversing augers 42 and 42 is a direction in which crushed snow is gathered to the center in the width direction of the auger housing 21 when the left and right reversing augers 42 and 42 are reversed.

  The left and right forward rotation shafts 43, 43 and the left and right reverse rotation shafts 44, 44 are arranged coaxially (on the axis Xs shown in FIG. 3) and aligned in a row in the auger housing 21 in the width direction. Yes. That is, the left and right forward rotating augers 41 and 41 and the left and right rotating augers 42 and 42 are arranged coaxially (on the axis line Xs shown in FIG. 3) and are front parts of the airframe 11 (see FIG. 1). Is located.

  As shown in FIG. 2, the left and right reversing shafts 44, 44 are constituted by pipe shafts fitted to a reversing drive shaft 62 of the transmission 35 so as to be relatively rotatable. The reverse drive shaft 62 extends in the width direction of the auger housing 21 and can be reversely rotated by inputting a driving force to the input shaft 61. Left and right reverse rotation shafts 63 and 63 are connected to both ends of the reverse drive shaft 62 in the longitudinal direction of the shaft. Left and right reverse rotation shafts 44 and 44 are connected to the left and right reverse rotation rotation shafts 63 and 63 by left and right reverse rotation shear bolts 64 and 64, respectively.

  Further, the transmission 35 includes left and right forward drive shafts 65 and 65. The left and right forward drive shafts 65, 65 are constituted by pipe shafts fitted to the reverse drive shaft 62 so as to be relatively rotatable, and can be rotated forward by inputting a driving force to the input shaft 61. . The left and right forward rotation drive shafts 65 and 65 are connected to the left and right forward rotation rotation shafts 66 and 66, respectively. The left and right forward rotation shafts 43 and 43 are configured by pipe shafts fitted to the left and right forward rotation drive shafts 65 and 65 so as to be relatively rotatable. The left and right forward rotation shafts 66, 66 are connected to the left and right forward rotation shafts 43, 43 by left and right forward rotation shear bolts 67, 67, respectively.

  As shown in FIG. 3, the outer diameter D <b> 1 of the left and right reversing augers 42, 42 is larger than the outer diameter D <b> 2 of the left and right forward rotating augers 41, 41. The rotational speeds of the left and right forward augers 41 and 41 and the left and right reverse augers 42 and 42 are all the same.

  The snow crushed by the left and right reversing augers 42 and 42 is scraped toward the left and right forward augers 41 and 41. The collected snow and the snow crushed by the right and left forward rotating augers 41 and 41 are scraped together by the left and right forward rotating augers 41 and 41 in the center of the auger housing 21 in the width direction, and the rear blower housing 22 is rearranged. (See FIG. 1). The snow sent to the blower housing 22 is blown away through the shooter 25 by the blower 24 shown in FIG.

  The above description is summarized as follows. At the time of snow removal by the snowplow 10, the left and right forward augers 41, 41 that rotate from top to bottom and the left and right reverse augers 42, 42 that rotate in the opposite direction with respect to the left and right forward augers 41, 41 Are arranged on the same axis and located at the front of the body 11.

  Since the left and right reversing augers 42 and 42 rotate from the top to the “rear and lower”, that is, in the direction of the arrow Rb during snow removal, there is a tendency for foreign matter in the snow to be discharged forward and upward. Stronger than 41,41. That is, the occurrence of a foreign matter biting phenomenon by the left and right reversing augers 42 and 42 is easier to suppress than the left and right normal rotating augers 41 and 41.

  On the other hand, since the left and right forward rotating augers 41 and 41 rotate from the top toward the “downward front” during snow removal, a phenomenon of biting into a foreign object tends to occur compared to the left and right rotating augers 42 and 42. It is in. In order to increase the efficiency of the snow removal work by the snow removal machine 10, it is important to suppress the occurrence of a foreign matter biting phenomenon by the left and right forward augers 41, 41.

  On the other hand, in the present embodiment, the outer diameter D1 of the left and right reversing augers 42, 42 is set larger than the outer diameter D2 of the left and right revolving augers 41, 41. In this case, the shapes of the left and right forward augers 41 and 41 and the left and right reverse augers 42 and 42 and the width in the longitudinal direction of the shaft are substantially (basic) as compared to the case where the outer diameters D1 and D2 are the same. In the same way) Further, as described above, the left and right forward augers 41 and 41 and the left and right reverse augers 42 and 42 are configured in a band plate shape. The width and thickness of the strip may be substantially (basically) the same as in the case where the outer diameters D1 and D2 are the same.

  For this reason, the large-diameter left and right reversing augers 42 and 42 are more likely to hit the foreign matter in the snow before the left and right forward augers 41 and 41. Therefore, the occurrence of a foreign matter biting phenomenon by the forward rotation augers 41 and 41 can be suppressed. As a result, the occurrence of a foreign matter biting phenomenon by all the augers 41, 41, 42, 42 can be suppressed.

  In this way, the efficiency of snow removal work by the snow removal machine 10 can be improved. In particular, the effect of suppressing the occurrence of the biting phenomenon of all the augers 41, 41, 42, 42 with respect to relatively long foreign substances or large foreign substances is great.

  In the present invention, if the outer diameter D1 of the left and right reverse augers 42, 42 is larger than the outer diameter D2 of the left and right forward augers 41, 41, the left and right forward augers 41, 41 The overall shape and size of the left and right reversing augers 42, 42 are arbitrary.

  The auger type snow removal machine 10 of the present invention is suitable for a snow removal machine that drives at least the auger 23 by the engine 14.

10 auger type snowplow 11 machine body 21 auger housing 23 auger 41 forward rotation auger 42 reverse rotation auger D1 outer diameter of reverse auger D2 outer diameter of forward rotation auger

Claims (1)

An auger type in which a forward rotating auger that rotates from top to front and downward during snow removal and a reverse rotating auger that rotates in the reverse direction with respect to the forward rotating auger are arranged coaxially and located at the front of the aircraft In the snowplow,
The forward rotation auger is configured in a spiral shape by a strip-shaped member having a predetermined width, and the spiral direction of the forward rotation auger is the width direction of the aircraft when the forward rotation auger rotates forward. Formed in the direction of gathering in the center,
The reversing auger is formed in a spiral shape by a strip-shaped member having a predetermined width, and the spiral direction of the reversing auger gathers the crushed snow at the center in the width direction of the aircraft when the reversing auger is reversed. Formed in the direction,
An auger type snow remover characterized in that an outer diameter of the reversing auger is larger than an outer diameter of the forward auger.

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