KR200445347Y1 - Blowing Type Snow Blower For Tractor - Google Patents

Abstract

The present invention relates to a blower type snow blower for a tractor, which can be towed in the forward direction of the tractor and, if necessary, is equipped with a snow blower in the reverse direction to connect the tractor connecting means and the tractor's PTO shaft so that the power can be used in both directions. It includes a power connection means for constituting, and during the snow removal operation, the chute automatically adjusts the direction of the chute by the chain and the hydraulic motor, and a stopper is provided for limiting the direction, and the inclination angle of the cover coupled to the discharge end of the chute We present a blower type snow thrower for tractors that can be easily adjusted by using.

Snow Blowers, Snow Blowers, Chute Rotators, PTO Power Snow Blowers

Description

Blowing Type Snow Blower for Tractor {SNOW BLOWER FOR TRACTOR}

The present invention is a device for removing snow accumulated on the road surface while being mounted on a tractor that is widely used in farms, and especially, the auger attracts snow to the impeller and the impeller rotating at high speed absorbs it. A blow-type snowplow having a structure that pumps through the chute to the side of the plow.

Snow removal using tractors widely used in farms is very useful in areas where it is difficult to put in dedicated snow plows or because the quantity is insufficient, so that snow accumulated on the main roads cannot be cleared on time, or where self-removal is required such as farms, farm roads and village roads. .

For this reason, snow plows using conventional tractors are widely used, and snow removal on tractor shovels such as Republic of Korea Patent Registration No. 10-436986, "Retractor installation device for detaching and removing tractor rear", and Korea Utility Model Registration No. 20-243322, "Tractor snowplow". The structure which attaches a plate and removes snow by pushing the snow of a road to the roadside by the propulsion force of a tractor is generally used.

Existing tractor using a snow plow as described above is a structure that can be applied to a tractor equipped with a shovel, but the detachment is simple, there is an advantage that can effectively use the driving force of the tractor. However, the snow removing method using snow plow plate pushes the snow accumulated on the road or passage toward the roadside, and the snow accumulated on the roadside during the day melts the road at night and freezes the road situation due to the characteristic of winter weather where the temperature difference between day and night is large. There is a disadvantage, such as the snow piled up on the road for a long time to look aesthetic and require a lot of effort to manage the road surface.

On the other hand, the dedicated snow plow as a blowing method, as shown by the Republic of Korea Patent Publication No. 1996-0009728, US Patent US 4,385,457, US Patent US 4,391,052, the auger blade (auger blade), the auger unit (auger unit) and Because the impeller is used to scrape the snow on the road and blow it out of the roadside, the road surface is kept clean even after snow removal.

The snow blower is a body provided with a mounting means for mounting on a tractor or a dedicated vehicle, a blade (blade) to form a semi-cylindrical structure at the bottom of the body to scrape snow while contacting the road surface; Installed in the blade has an auger (auger) for compressing and transporting the snow introduced into the blade to the impeller suction passage formed in the blade center, and the impeller to receive the snow introduced by the auger and blow it out through the chute. .

The blow-type snowplow has the advantage of simplifying the configuration of the device by using hydraulic power for driving augers and impellers, and in the case of a retractor for snow removal or a multipurpose vehicle for snow removal, it is necessary to drive the snowplow. It is possible to provide sufficient hydraulic pressure.

However, the agricultural tractor produces a hydraulic pressure for driving a simple auxiliary device, so when a large amount of hydraulic oil is required for auger and impeller driving, such as a blower-type snowplow, there is a limit in that sufficient hydraulic power cannot be secured. For this reason, blower type snowplows applied to tractors have been devised to drive augers and impellers powered by the PTO shaft of tractors with sufficient outputs, and two output shafts and one input shaft on the opposite body where the blade is formed. It is known to install a gearbox having a connection to the input shaft to the PTO shaft, each output shaft is connected to the auger and the impeller shaft.

The tractor mounting snow plow according to the above structure has an advantage of securing sufficient power for driving augers and impellers by using the PTO shaft of the tractor as a power, but on the other hand, a gearbox is provided at the rear of the tractor to connect with the PTO shaft of the tractor. By mounting the snowthrower facing each other, the blade of the snowplow is directed toward the rear of the tractor. Such a structure is forced to remove snow while the tractor is going backward. Therefore, since the tractor driver should look back and finish the entire snow removal process with unfamiliar backwards, the snow removal efficiency is not high, the work fatigue is high, and there is a very high concern about driving accidents due to limited visibility on mountain roads or narrow roads. .

On the other hand, in the blow-type snowplow, the chute, which is the final outlet of the snow, should be configured so that the direction can be freely changed in any of the left or right directions according to the progress of the snowplow, and the snow removal worker must be configured to adjust the direction of the chute while driving. .

For this purpose, a structure is known in which a link is connected to a driver's seat of a dedicated machine, but it is inconvenient to use.

In addition, as applied to the aforementioned US 4,391,052, the chute is rotatably coupled to the discharge passage of the impeller, and a leche is formed in the chute lower flanger to engage with the pinion coupled to the shaft of the hydraulic cylinder. The structure for controlling the direction of the chute is known by controlling the rotation of the hydraulic cylinder by lever operation. Such a structure provides the advantage of easily switching the direction of the chute by lever operation, but the structure of the chute is rotated in a state where the rack and pinion are engaged. Foreign objects, such as stone chips or wood chips, can seriously damage the legs and pinions. In addition, the structure of the chute is rotated in the 360 ° direction, the direction of the chute to the driver during snow removal operation due to malfunction or inexperienced operation, in which case there was a high risk of accidents due to instantaneous loss of vision.

In addition, in the blowing type snow blower, a cover is attached to a side of the final outlet port of the chute, and the cover is coupled to the chute by a rotating shaft and a fixing screw, and the fixing screw is disposed around the rotating shaft. It is configured to be inserted into the long hole formed in the arc shape at the end, and when it is necessary to adjust the discharge angle of the eye, it is used to release the fixing screw, adjust the cover angle and fix it with the fixing screw again. There is a problem that the operator has to adjust manually in the state, there is a roadside facility in the discharge direction of the snow, there was a problem that can not respond quickly when there is a need to discharge the snow to avoid it.

The present invention proposes a blower type snowplow for a tractor, which is configured to perform a snow removal operation while moving the tractor in a forward direction, resulting in a decrease in workability and a high fatigue and lack of visibility caused by snow removal while reversing. It has the purpose of eliminating the risk, and also has the purpose of allowing the driver to be used in both forward and reverse directions in response to changes in conditions such as the natural environment and road conditions.

In addition, the present invention, in controlling the direction of the chute, by using a chain connected to the hydraulic motor to rotate the chute, by using a stopper to limit the direction of rotation of the chute to accurately control the direction of the chute, and also for various foreign matters Stable driving is achieved, and the eyes are directed backward so that the driver's field of view can be secured continuously.

In addition, the present invention is attached to the cover constituting the final discharge portion of the chute by adjusting the angle control device operated in the driver's seat to adjust the up and down angle of the cover even during the operation of snow removal to avoid snow on the roadside facilities, etc. The purpose of this article is to present a snow plow that can respond quickly.

The present invention is provided with a tractor mounting means on the body, the blade is formed in a semi-cylindrical structure at the bottom of the body to act to scrape the eyes while contacting the road surface, and the snow that is installed in the blade to flow into the blade An auger that compresses and feeds the impeller suction path formed at the center of the blade, an impeller that receives snow from the auger and blows it out through the impeller discharge path and chute, and connects the impeller and auger to the tractor's PTO shaft In presenting a blower type snow blower for a tractor having a structure including a means for driving it, the chute is rotatably coupled on the impeller discharge passage, and the sprocket is disposed outside the lower cylinder of the chute. And a hydraulic motor mount is formed at the rear side of the body, and the hydraulic motor driven by the hydraulic pressure is provided from the tractor. And sprockets are mounted on the shaft of the hydraulic motor to connect the sprockets of the chute with a chain, and a rotation angle limiting means is formed on a body adjacent to the sprockets of the chute to change the direction of the chute. We present a blowing type snow blower for a tractor, characterized in that it is limited within a certain angle range.

The rotation angle limiting means may be composed of a sprocket side stopper formed on the sprocket of the chute and a body side stopper formed on the body on the sprocket side stopper movement path, in which case the sprocket side stopper consists of one The ground body side stopper is composed of two stoppers spaced 180 degrees apart. On the contrary, when the body side stopper is formed as one, the sprocket side stoppers are composed of two stoppers spaced 180 degrees apart, which results in 180 degrees of chute rotation. It is configured to limit in the range.

The structure is the forward and reverse hydraulic pressure is supplied by the hydraulic motor is rotated, the direction of the chute is changed, when the chute is rotated to some extent to reach the position where the stopper and the stopper abuts, the stopper is in contact with each other no longer rotation, the hydraulic motor is constant When the load is applied, the operation stops as it is, so the driver senses this and cuts off the hydraulic pressure supplied to the hydraulic motor, thereby limiting the rotation direction.

The rotation angle limiting means can be achieved by a sensing rod formed on the sprocket of the chute and a limit switch programmed in the body in a 180 ° range to automatically block the flow of hydraulic pressure, the limit switch being the body side It can be installed separately from the stopper and the sprocket side stopper, and can be additionally installed. An angle sensor or a camera may be installed to monitor the direction state of the chute in the driver's seat, and a monitor may be installed in the driver's seat to configure the chute in real time in the driver's seat of the tractor.

The present invention proposes a configuration in which the inclination control device is coupled to the cover coupled to the discharge end of the chute to adjust the inclination angle of the final discharge eye.

The inclination control device is coupled to the cover by the hinge of the chute chute, the two-wing chute contact of the cover to form an arc-shaped long hole with the hinge as a center point, the long hole is inserted into the guide pin and fixed to the chute The cover and the chute on the hinge extension line form a link for connecting the cylinder, and each has a structure in which a pin is coupled to the piston rod and the main body of the cylinder.

The cylinder may be composed of a hydraulic cylinder driven by the hydraulic pressure provided from the tractor or an electric cylinder driven by a DC power source provided from the tractor. The cylinder may be formed at one or more than one ends and may additionally attach a cover.

The inclination adjusting device is operated by operating the lever in the driver's seat of the tractor to operate the cylinder to adjust the inclination angle of the cover around the hinge as the piston rod advances, and the guide pin to cover the cover so that the inclination of the cover is made stable It acts as a catch.

The tilt control device may be configured as a cylinder driven by an electric motor in place of the hydraulic cylinder, and installed an angle sensor and a camera in the chute so that the inclined state of the cover can be monitored in the driver's seat, and the monitor in the driver's seat It can be configured to check the degree of inclination of the cover in real time from the driver's seat of the tractor.

The present invention proposes a snow plow for a tractor capable of removing snow while moving forward including the above configuration.

To this end, the present invention constitutes a tractor mounting means having a three-point link frame coupled to a three-point link of the tractor to face the blade in front of the body, and the intermediate for connecting to the tractor PTO shaft on the upper body It is a structure that forms a shaft and connects the impeller shaft and the auger shaft, respectively. Present a blowing type snow thrower.

The auger shaft and the impeller shaft connected to the intermediate shaft may be connected by a belt or a chain, and the impeller shaft may connect the speed increase gear box to the auger shaft as a parameter to obtain a high speed rotation.

The present invention is capable of stable use for various foreign substances introduced from the snow removing environment by controlling the direction of the chute by the hydraulic motor and the chain, and has the durability.

In addition, the direction of rotation of the chute can be limited to a certain degree, thereby preventing the danger caused by the eyes being discharged toward the driver due to carelessness or inexperienced operation and obstructing vision.

Adjusting the inclination angle of the cover according to the present invention provides an advantage that can control the inclination of the snow during driving. Therefore, when there is an obstacle on the roadside or the roadside facilities, etc. during operation, it is necessary to adjust the discharge direction by simply adjusting the inclination angle of the cover together with the discharge direction of the chute or provide an advantage of adjusting the discharge direction and angle.

Unlike the existing snow removing work, the present invention can perform snow removal while driving the tractor forward, and can use snow removal while driving backward depending on the natural environment and road conditions, so that the work efficiency can be improved, and the driver's body It is possible to concentrate on the tractor running normally without twisting the work fatigue is reduced, there is an advantage that can easily prevent various accidents due to the difficulty of securing the field of view forward.

1 to 3 illustrate the basic embodiment of the present invention, whereby the present invention will be described in detail.

The present invention is provided with a tractor mounting means 20 on the body 10, the blade 30 (blade) to form a semi-cylindrical structure at the bottom of the body to scrape the eyes while contacting the road surface, and in the blade The auger (40, auger) is installed to compress and transport the snow introduced into the blade to the impeller suction passage 51 formed in the blade center, and the impeller discharge passage 52 and chute 60 to receive the snow introduced by the auger Blowing type snow blower for a tractor including an impeller 50 to blow out to the outside, and a power connection means 70 for driving the impeller 50 and the auger 40 to the PTO shaft of the tractor to drive it Applies to).

In the present invention, the chute 60 is rotatably coupled in a plunge structure on the impeller discharge passage 52.

The sprocket 61 is formed on the outer side of the lower cylinder of the chute, and the hydraulic motor mount 62 is formed at the rear side of the body 10 to mount the hydraulic motor 63 driven from the tractor.

The sprocket 64 is mounted on the shaft of the hydraulic motor 63 and connected to the sprocket 61 of the chute and the chain 65.

By forming a rotation angle limiting means 66 on the body 10 adjacent to the sprocket 61 of the chute 60 is configured to limit the direction of the chute within a certain angle range.

The rotation angle limiting means 66 includes a sprocket side stopper 661 formed on the sprocket 61 of the chute and a body side stopper 662 formed on the body 10 on the sprocket side stopper movement path. It can be composed of).

 In this case, when one sprocket side stopper 661 is formed, the body side stopper 662 is composed of two stoppers spaced apart in a 180 ° range, on the contrary, when one body side stopper 662 is formed, the sprocket side stopper ( 661) is composed of two stoppers spaced in the 180 ° range is configured to limit the rotation angle of the chute in the 180 ° range.

In the illustrated embodiment, two sprocket side stoppers 661 are formed below the sprocket 61 of the chute, and one body side stopper 662 is formed on the body 10. It shows a structure.

The sprocket side stopper 661 and the body side stopper 662 may be made of metal and welded or bolted to each object to be attached, or may be made of an engineering plastic material. The pad of elastic material can be attached to it.

The structure is reversed hydraulic pressure is supplied to the hydraulic motor is rotated to change the direction of the chute, the chute is rotated to some extent, the sprocket side stopper 661 and the body side stopper 662 is no longer rotated when contacted with each other This becomes impossible, and since the operation of the hydraulic motor is stopped as it is applied to a predetermined load or more, the driver senses this and blocks the hydraulic pressure supplied to the hydraulic motor, thereby limiting the rotational direction.

The rotation angle limiting means 66 forms a sensing rod (not shown) in the sprocket 61 of the chute, and is installed in the body 10 in a 180 ° range to automatically flow the hydraulic pressure in contact with the sensing rod. It can be achieved by a limit switch programmed to cut off, and the limit switch can be installed separately from the sprocket side stopper and the body side stopper, and can be additionally installed.

The present invention proposes a configuration in which the inclination control device 90 is coupled to the cover 80 coupled to the discharge end of the chute to adjust the inclination angle of the final discharge eye.

The inclination control device 90 is coupled to the discharge end of the chute 60 by the cover 80 by the hinge 91, the two wings 81 of the cover of the chute contact portion of the circular arc-shaped hole (center) And a guide pin 93 is inserted into the long hole and fixed to the chute, and links 94 and 95 for connecting the hydraulic cylinder 96 are formed on the cover and the chute on the hinge extension line. It has a structure that is pinned to the piston rod and the cylinder body of the cylinder (96).

In the above configuration, the chute for coupling the cover may be configured in a cylindrical or square shape, and the shape of the cover may correspond to the semi-circular or both wing portions in an angular shape.

The link for coupling the hydraulic cylinder protrudes from the attachment portion so as to provide space for the retraction of the hydraulic cylinder.

The tilt control device operates a hydraulic cylinder by operating a lever (not shown) in the driver's seat of the tractor to adjust the inclination angle of the cover around the hinge as the piston rod moves forward and backward, and the inclination of the cover is stable. It acts to hold the cover to be made.

The snow plow for a tractor capable of removing snow while moving forward in the present invention has a three-point link frame 21 and 22 coupled corresponding to the three-point link 100 of the tractor to face the blade 30 in front of the body 10. The tractor mounting means 20 is additionally configured with the formed structure, and an intermediate shaft 71 for connecting to the tractor PTO shaft is further formed on the body, and connected to the impeller shaft 53 and the auger shaft 41, respectively. It constitutes a power connection means 70 to the structure. The driver can use the existing tractor mounting means formed on the body opposite to the auger 40 as it is, and use the existing power connection means that directly connects the impeller shaft and the PTO shaft to perform snow removal while reversing as before. Power connection means for mounting the body to the three-point link frame of the tractor mounting means 20 added by the present invention formed on the side, connecting the intermediate shaft added by the present invention to the PTO shaft of the tractor and connecting the auger shaft to the intermediate shaft, respectively Snow removal can be carried out as needed, for example, to move forward and backward, or according to natural and road conditions.

The auger shaft and the impeller shaft connected to the intermediate shaft may be connected by a belt or a chain, and the impeller shaft may connect the speed increase gear box to the auger shaft as a parameter to obtain a high speed rotation.

In the illustrated embodiment, the intermediate shaft 71 is supported by the bearing element 72 on the upper body, and the spline 71a for connecting the PTO shaft is formed in front of the intermediate shaft, and the pulley 71b is coupled to the rear. Representative structures are connected to the auger shaft 41 and the impeller shaft 53 by belts, respectively.

The auger shaft is connected to a speed reducer (not shown) and is driven by a connection shaft and a chain connected to the reducer (not shown), and the impeller is connected to the speed reducer as it is applied to a conventional snow plow.

  The snow plow body is coupled to the three-point link with respect to the tractor by the configuration, can be lifted and moved by the crane link of the tractor, can be lowered on the road surface to perform the snow removal work.

As the intermediate shaft is connected to the PTO shaft while the tractor is mounted on the tractor, the rotation speed of the auger and impeller is controlled by the PTO shaft intermittent lever of the tractor. You can do it.

1 is a state equipped with the present invention on a tractor

Figure 2 is a side cross-sectional configuration of the present invention

3 is a plan view of the present invention

*. Explanation of the Major Codes

10. Body 20. Tractor mounting means

21. 22. Samjung Link Frame

30. Blade 40. Auger

50. Impeller 51.Suction passage 52.Exhaust passage

60. Suit 61.Sprocket 62.Mount

63.Hydraulic motor 64.Sprocket 65.Chain

66. Angle of rotation restriction 661.662. Stopper

70. Power connection means 71. Intermediate shaft 72. Bearing elements

80.Cover 90.Slope Adjustment Device

91.Hinge 92.Hongster

93.Guide Pin 94.95.Link

Claims (9)

The tractor mounting means 20 is provided on the body 10, and has a semi-cylindrical structure at the lower part of the body, the blade 30 which acts to scrape the eyes while contacting the road surface, and the blade is installed in the blade Auger (40, auger) for compressing and transporting the snow introduced into the impeller suction passage 51 formed in the blade center, and receives the snow introduced by the auger to the outside through the impeller discharge passage 52 and chute 60 In a blower type snow blower for a tractor comprising a blowing impeller 50, and a power connecting means 70 for connecting the impeller 50 and the auger 40 to the tractor's PTO shaft to drive it; The chute 60 is rotatably coupled to the impeller discharge passage 52, and a sprocket 61 is formed outside the lower cylinder of the chute 60, and a hydraulic motor is provided at the rear of the body 10. Mount 62 is formed and provided from the tractor A hydraulic motor 63 driven by hydraulic pressure is mounted, and a sprocket 64 is mounted on a shaft of the hydraulic motor 63 to be connected to the sprocket 61 of the chute and the chain 65. Rotation angle limiting means 66 is formed on the body 10 adjacent to the sprocket 61 of the chute 60 is characterized in that it is configured to limit the direction of the chute within a certain angle range during the snow removal operation Blowing type snow thrower for tractor. The method according to claim 1, The rotation angle limiting means 66 is a sprocket side stopper 661 formed on the sprocket 61 of the chute and a body side stopper 662 formed on the body 10 on the sprocket side stopper movement path. Composed, When the sprocket side stopper 661 and the body side stopper 662 are formed with one sprocket side stopper 661, the body side stopper 662 is formed of two stoppers spaced 180 degrees apart, and vice versa. If one side stopper 662 is formed, the sprocket side stopper 661 is composed of two stoppers spaced 180 degrees apart tractor blowing type, characterized in that configured to limit the rotation angle of the chute in the 180 ° range Snowplow. The method according to claim 2, Blowing type snowplow for a tractor, characterized in that the shock absorbing pad is attached to the sprocket side stopper (661) and the body side stopper (662). The method according to claim 1, Rotation angle limiting means 66, characterized in that made of a sensing rod formed on the sprocket 61 of the chute and the limit switch is programmed to automatically shut off the flow of hydraulic pressure in contact with the sensing rod Blowing type snow thrower for tractor. The method according to claim 1, An angle sensor or camera is installed to monitor the direction of the chute 60 at the driver's seat, and a monitor is installed at the driver's seat to check the direction of the chute in real time from the driver's seat of the tractor. Type snow throwers. The method according to claim 1, A cover 80 is hinged to the discharge end of the chute 60, and an arc-shaped long hole 92 having the hinge as a center is formed at both wing chute contact portions of the cover, and the long hole 92 has a chute. The fixed guide pin 93 is inserted, and the cover 94 and the chute on the hinge extension line are formed with links 94 and 95 for connecting the cylinders, respectively. Blowing snow plow for a tractor, characterized in that configured to adjust the inclination angle of the cover of the hinge axis by operating the hydraulic cylinder by the lever operation in the driver's cab. The method according to claim 6, Cylinder (96) is a blower type snowplow for a tractor, characterized in that made of any one of a hydraulic cylinder driven by the hydraulic pressure provided from the tractor or an electric cylinder driven by the DC electricity provided from the tractor. The method according to claim 6, An angle sensor and a camera are installed in the chute 60 to monitor the inclination state of the cover 80 in the driver's seat, and a monitor is installed in the driver's seat so as to check the inclination angle of the cover in real time in the driver's seat of the tractor. Blowing type snow blower for tractor. The method according to any one of claims 1 to 5, Three-point link frame 21, 22 is formed to be coupled to the tractor mounting means 20 to correspond to the three-point link 100 of the tractor in front of the auger 40 side of the body 10, It includes a structure that is connected to the impeller shaft and the auger shaft, the intermediate shaft 71 formed to be connected to the tractor PTO shaft in the upper portion of the body by the power connecting means 70, Blowing type snowplow for tractor, characterized in that the body is attached to the three-point link of the tractor and the intermediate shaft is connected to the PTO shaft to carry out snow removal operations according to natural and road conditions.

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