JP6417124B2 - Work vehicle - Google Patents

Description

  The present invention relates to a work vehicle such as a combine.

  Conventionally, a work vehicle such as a combine uses a diesel engine, which is driven through a transmission by the engine power, and an air compressor used for an air conditioner of a cabin is arranged around the engine is disclosed in Patent Document 1. As known.

  In the work vehicle as described above, a variety of devices such as a driver's driver's seat as well as a travel device and various work machines and their transmission system and operation unit are mounted in a limited space. The compressor including the input transmission system is also provided at a position in front of the engine below the step of the driver's seat.

  The transmission system between the engine and the compressor is a mechanism that is wound around a pulley and a belt, and a tension device such as a tension pulley is also provided in the transmission system to adjust and hold the tension of the belt (for example, Patent Documents). 1).

JP-A-9-56245 (FIGS. 4 and 7)

  However, in the work vehicles as described above, the compressor is driven via the transmission, so that the compressor is located away from the engine, and it is necessary to provide a wide area transmission system in a limited space. It is necessary to provide a tension pulley in the driving belt, and it is difficult to sufficiently secure a space for arranging the compressor including the transmission system and a maintenance space for these.

  In recent years, diesel engines such as DPF (Diesel particulate filter) are often provided with a trapping filter that traps particulates in exhaust gas. However, in the above arrangement, a particulate trapping filter that requires a relatively large space. There is a problem that it is difficult to secure the installation space.

  In order to solve the above-described problems, the present invention makes the arrangement of the compressor and the capture filter compact, enables the position adjustment for transmission of the compressor, and reduces the installation cost of these devices.

A work vehicle according to the present invention for solving the above-described problem is first a work vehicle including a compressor 19 disposed on one side of the engine 12 and driven by power from the engine 12. the provided in proximity to the engine 12, the capture filter 21 for trapping fine solids contained in the exhaust gas discharged from the engine 12, provided on the side of arranging the compressor 19 in the periphery of the engine 12, the The transmission mechanism 40 is configured such that the power transmission direction to the compressor 19 by the transmission mechanism 40 that transmits power from the engine 12 to the compressor 19 is directed in the vertical direction, and the compressor 19 is supported so as to be movable in the vertical direction. It is characterized by that.

Second, the transfer moving mechanism 40, provided in the compressor 19 placed side in the periphery of the engine 12, by a bracket 22 for supporting the compressor 19, is characterized in that cover at least a portion of the compressor 19.

  Since the compressor and the capture filter are concentrated on one side of the engine, it is easy to make the whole compact even when the capture filter is provided.

  In addition, a transmission mechanism for transmitting power from the engine to the compressor is provided on the compressor installation side around the engine, and the compressor is supported so as to be movable and adjustable in the direction of power transmission to the compressor by the transmission mechanism. According to the present invention, it is possible to align the transmission mechanism and the compressor after assembly, which is highly convenient.

  Also, according to the structure in which the transmission mechanism is configured such that the power transmission direction to the compressor by the transmission mechanism is directed in the vertical direction, and the compressor is supported so as to be movable in the vertical direction, the alignment of the transmission mechanism and the compressor can be adjusted. Therefore, it is not necessary to secure a space in the front-rear direction, and the size in the front-rear direction can be easily reduced.

  Furthermore, according to the compressor that supports at least a part of the compressor with the bracket that supports the compressor, the supporting member and the covering member can be used in common, thereby reducing the number of parts and keeping the cost low. Is possible.

1 is an overall left side view of a combine to which the present invention is applied. It is the whole combine top view similarly. It is a right view which shows the compressor installation part of the combine which shows the Example of this invention. It is the left side perspective view of the combine which similarly shows the installation structure of a compressor and a capture filter. It is a right side perspective view of a combine which similarly shows the installation structure of a compressor and an acquisition filter. It is a back right perspective view which similarly shows the installation structure of a compressor and an acquisition filter. It is a back left perspective view which similarly shows the installation structure of a compressor and an acquisition filter.

  1 and 2 are overall views of a combine to which the present invention is applied. In the lower part of the machine frame 2 having a traveling unit 1 made of a crawler or the like, the cereals are cut and transported backward. The preprocessing unit 3 is provided so as to be swingable up and down.

  On the left side of the machine body frame 2, a threshing unit 6 that receives the cereal grains sent from the front processing unit 3 from the front and sends it to the rear and the threshing unit 6 that performs threshing on the inner side (right side) of the feed chain 4. , The draining part 7 behind it, the feed chain 4 and the grain sorting part 8 below the draining part 7 are mounted and arranged.

  On the right side of the fuselage frame 2, a driving operation panel 9, a driver's seat floor (deck) 11 and an operator's driver's seat (seat seat) 10 are sequentially provided from the front, and an engine 12 is provided below the driver's seat floor 11. The engine room 14 is formed by covering the front and rear and right side surfaces with an engine cover 13. A grain tank 16 that accommodates the grain sent from the grain sorting unit 8 is disposed behind the engine room 14, and an auger (not shown) is disposed at the upper end of the vertical spiral pipe 17 that is connected to the rear part of the engine room 14. ), And a discharge cylinder 18 for discharging the grains is connected to be horizontally rotatable.

Between the engine room 14 and the Glen tank 16, as shown in FIGS. 3 to 7, a compressor 19 to be arranged according to the present invention and a capture filter 21 for collecting particulates in engine exhaust gas are sequentially installed. 4 to 7, the compressor 19 is mounted on a cover-like bracket 22 having a L-shape or a U-shape in plan view, which is mounted on the body frame 2 behind the engine 12 (or the engine room 14). Yes. Incidentally, the compressor 19 is an air conditioner compressor that compresses the refrigerant of the cabin air conditioner that covers the driver's seat 10. The cover-like bracket 22 covers at least the right outer side and the rear side of the compressor 19, and in the case of a U-shaped cross section, the cover 22 also covers the inner side (left side) of the compressor 19. Above the compressor 19 and the trapping filter 21 is covered with a cover 15.

  The bracket 22 includes a fixed bracket 22a that is fixedly mounted on the body frame 2 on the lower side, and a movable bracket 22b that is vertically slidable (position adjustable) with respect to the fixed bracket 22a on the upper side. It itself is attached to the upper bracket 22b. In the illustrated example, the movable bracket 22b is mounted along the inner surface of the fixed bracket 22a so as to be movable up and down, and a fixture (bolt) 23 for fixing through both the brackets 22a and 22b is at least one of the brackets 22a and 22b. Is inserted into a bolt hole 24 made of a long hole in the vertical direction, and the position is adjusted up and down by the length of the bolt hole 24 in the vertical direction.

  Further, the vertical movement adjustment of the movable bracket 22b with respect to the fixed bracket 22a is performed in the vertical direction between the ribs provided at the vertical corresponding positions between the fixed bracket 22a and the movable bracket 22b as shown in FIG. The adjustment device 27 including an adjustment bolt and a nut is used, and the vertical position adjustment is performed to adjust the tension of the belt 36 that drives the compressor 19 as described later.

  As shown in FIGS. 4 and 7, an output pulley 29 to which power from the engine 12 is directly output is arranged on the inner side (left side) of the engine 12. An input counter pulley 31 that is positioned behind the output pulley 29 and to which the power of the output pulley 29 is transmitted via the belt 30 is rotatably supported on the upper surface side of the machine body frame 2 located at .

  The counter device 32 on the machine body frame 2 constituted by the input counter pulley 31 and the like is disposed directly below the input pulley 33 that inputs power to the compressor 19 and drives the compressor 19. An output counter pulley 34 to which power is transmitted is provided.

This input pulley 33, the output counter pulley 34, the ring-shaped belt 36 is wound by the belt 36, power transmission is performed from the output counter pulley 34 to input pulley 33.

  That is, the input pulley 33, the output counter pulley 34, and the belt 36 constitute a transmission mechanism 40 that directly transmits the power from the engine 12 to the compressor 19. In other words, the transmission mechanism 40 is installed in the vertical direction by the belt 36, and as described above, the compressor 19 is in the vertical direction, which is a direction along (in parallel to) the transmission direction. It is supported so that the position can be adjusted.

  By adjusting the position in the transmission direction (vertical direction), it is easy to set the tension of the belt 36 appropriately. Incidentally, the position adjustment of the compressor 19 is performed by the adjusting device 27 described above with the bolt 23 loosened.

  The columnar compressor 19 is supported in a lateral posture facing in the left-right direction, and the input pulley 33 is installed at the left and right inner ends of the compressor 19. For this reason, it is prevented that the input pulley 33 is exposed to the outside, and breakage is efficiently prevented.

  Further, reference numeral 35 denotes a connecting pipe (hose) connected to the compressor 19 and through which a fluid to be compressed of the compressor 19 flows. This connecting rod 35 is rigid enough to maintain a predetermined shape. A pipe is provided so as to pass through the upper side, whereby the upper side of the compressor 19 is guarded.

  An output counter pulley 37 is pivotally supported at the front end of the counter device 32, and a lateral spiral (not shown) for sending the grain from the bottom of the Glen tank 16 at the rear of the machine body to the above-described rear vertical spiral pipe 17 via a belt 38. It is a driving mechanism (Note: Horizontal helical drive pulley is not shown).

  The capture filter 21 collects fixed particulates in the exhaust gas of the engine 12 as described above, and the base end portion is connected to the upstream side of the muffler 41 in the exhaust path of the exhaust pipe 39 connected to the engine 12. In this embodiment, it is attached and installed on the machine body frame 2 at a close position behind the compressor 19. The trapping filter 21 not only captures particulates in the exhaust gas, but also enhances the accelerator of the engine or burns and recovers the collected particulates using a heater or the like when the function is reduced due to clogging. May be provided.

  Furthermore, as shown in FIGS. 3 to 5, the capture filter 21 is provided with a cover 42 that covers the periphery of the capture filter 21 attached to the body frame 2 to protect the capture filter 21 or prevent the influence of heat on peripheral devices. It has become.

  As shown in the drawing, in this embodiment, the compressor 19 is installed at a position above the lateral spiral drive input belt 38 and pulley (not shown) of the Glen tank 16, and above the output counter pulley 34 of the counter device 32. 33, and the compressor 19 and the capture filter 21 are arranged separately on the left and right, so that the space behind the counter device 32 can be effectively used as an installation space for the capture filter 21, and the compressor 19, the counter device 32, and Maintenance of the capture filter 21 is also easy.

  Further, since the tension of the input belt 36 can be adjusted by making the compressor 19 movable up and down, there is an advantage that the transmission system of the compressor 19 can be simplified and space-saving, such as eliminating the need for a tension pulley and a tension spring. In addition, since the input pulley 33 and the input belt 36 to the compressor 19 are not touched during maintenance, troubles due to engine operation or the like can be prevented.

  Furthermore, since the bracket for mounting the compressor is L-shaped or U-shaped in plan view, it is possible to prevent the compressor 19 from being protected and the influence of exhaust heat by the rear capture filter 21.

12 engine (diesel engine)
19 Compressors (Compressors for refrigerant compression, compressors for air conditioners)
21 Capture filter 22 Bracket 22a Fixed bracket 22b Movable bracket 23 Bolt 24 Bolt hole (long hole)
27 Adjustment device 32 Counter device 33 Compressor output pulley 34 Output counter pulley 36 Belt 40 Transmission mechanism (belt transmission mechanism)

Claims (2)

A work vehicle including a compressor (19) disposed on one side of an engine (12) and driven by power from the engine (12), the compressor (19) being brought close to the engine (12) A capture filter (21) that captures minute solids contained in exhaust gas discharged from the engine (12) is provided on the side of the engine (12) where the compressor (19) is disposed ; The transmission mechanism (40) is configured so that the power transmission direction to the compressor (19) by the transmission mechanism (40) transmitting power from the engine (12) to the compressor (19) is directed in the vertical direction. A work vehicle that supports (19) so as to be movable in the vertical direction . Den kinematic mechanism (40), provided in the compressor (19) placed side in the periphery of the engine (12), by a bracket (22) for supporting said compressor (19), covering at least a portion of the compressor (19) working vehicle according to claim 1 which is.

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