JP3221676U - Loading type truck crane - Google Patents

Abstract

An object of the present invention is to provide a cheap and inexpensive loading type truck crane having excellent maintainability of parts. A crane device mounted on a truck vehicle includes an outrigger device fixed to a frame of the truck vehicle, a support base fixed to the outrigger device, and a swivel base provided on the support base. , A boom device 30 supported on a swivel base, an oil tank 49 in which hydraulic fluid is stored, an outrigger device, a valve 42 for supplying hydraulic fluid to the swivel base and boom device, oil for removing foreign substances contained in the hydraulic fluid And a filter 55. The valve is disposed to the right of the support, and the oil tank is disposed to the left of the support. The oil filter is directly connected to the valve. [Selected figure] Figure 2

Description

  This invention relates to the structure of a loadable truck crane mounted on a truck vehicle.

  A loadable truck crane mounted on a truck vehicle is mounted in a gap between a truck vehicle cabin and a loading platform. Loaded truck cranes include an outrigger device, a swivel, a boom device, etc., which are driven via hydraulic actuators. Therefore, in addition to the outrigger device, the swivel base, the oil tank, the hydraulic operating valve, the hydraulic piping, etc., it is required that these maintenance toolboxes be compactly laid out in the above-mentioned gap (see, for example, Patent Documents 1 and 2) ).

Japanese Utility Model Application Publication No. 03-25490 JP, 2013-75761, A

  An oil filter is included in the hydraulic device that is laid out in the gap. The oil filter is a part that removes foreign substances contained in the hydraulic oil and is a part that needs to be replaced regularly. Therefore, the oil filter must not only be compactly laid out in the above-mentioned gap, but also be disposed at a position excellent in maintainability. Since this is realized, if, for example, a bracket dedicated to the oil filter is adopted and the oil filter is connected by a required hydraulic hose, the oil filter is arranged at the optimum position while the load type track crane is configured. The number of parts required and the number of steps required for assembly increase, which causes a problem of a significant increase in manufacturing cost.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a cheap and inexpensive loading type truck crane having excellent maintainability of parts.

  (1) The loading truck crane according to the present invention is mounted on a truck vehicle. The loading type truck crane according to the present invention comprises an outrigger device fixed to the frame of the truck vehicle, a support fixed to the outrigger device, a swivel base provided on the support, and a support on the swivel base The boom device, the oil tank in which the hydraulic fluid is stored, the valve for supplying the hydraulic fluid to the outrigger device and the boom device, and the oil filter for removing foreign matter contained in the hydraulic fluid. The valve and the oil tank are disposed on either the right side or the left side of the support and the other. The oil filter is directly connected to the valve.

  Oil filters are usually smaller than oil tanks and valves. Therefore, it is necessary to dispose the oil filter on the upper portion of the bracket by arranging the bracket for aligning the height of the oil filter with the oil tank and the valve in the above-mentioned gap. According to the above configuration, the oil filter is supported by the valve because the oil filter is directly connected to the valve. Therefore, a bracket for matching the height of the oil filter with the height of the valve is not necessary.

  If the oil filter is disposed apart from both the oil tank and the valve, hydraulic hoses need to be disposed both between the oil filter and the oil tank and between the oil filter and the valve. According to the above configuration, since the oil filter is directly connected to the valve, a hydraulic hose for connecting the oil filter and the valve is unnecessary. That is, only one hydraulic hose is required to connect the oil filter and the oil tank.

  (2) The loading truck crane according to the present invention is provided with an operating lever that swings in the front-rear direction and adjusts the supply of hydraulic fluid to the valve. The oil filter is disposed above the control lever.

  Since the operation lever swings in the front-rear direction, there is no empty space before and after the operation lever, but there is an empty space above the operation lever. According to the above configuration, this empty space can be used as a space in which the oil filter is disposed.

  (3) The oil filter is disposed so as not to overlap the valve and the oil tank in the vertical direction.

  According to the above configuration, since the oil filter is not disposed on the upper surfaces of the oil tank and the valve, a maintenance tool box or the like can be disposed on the upper surface.

  According to the present invention, it is possible to provide a cheap and inexpensive loading type truck crane having excellent maintainability of parts.

FIG. 1 is a side view of a truck vehicle 20 and a crane apparatus 10. FIG. 2 is an external perspective view of the crane apparatus 10. FIG. 3 is a plan view of the crane apparatus 10. FIG. 4 is a front view of the crane apparatus 10. FIG. 5 is a functional block diagram of the crane apparatus 10.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings as appropriate. It is needless to say that the present embodiment is only one aspect of the present invention, and the embodiment may be modified without departing from the scope of the present invention.

  In the present embodiment, the truck vehicle 20 shown in FIG. 1 and the crane apparatus 10 mounted on the truck vehicle 20 (an example of the “loading type truck crane” described in the claims of the utility model registration) will be described. . Further, in the following description, the left and right direction is defined based on the right side and the left side when the truck 20 is viewed from the rear.

[Truck vehicle 20]

  As FIG. 1 shows, the truck vehicle 20 is equipped with the engine 21 (refer FIG. 5), the tire 22 provided in the axle, the cabin 23, and the loading platform 24. As shown in FIG. The tire 22 is driven by the engine 21 via an axle. The cabin 23 is disposed at the front of the truck 20. Driving devices such as a steering wheel, a clutch, an accelerator, and a brake are provided in the cabin 23. The loading platform 24 is disposed at the rear of the cabin 23. The loading platform 24 is in the form of a box whose upper side is open. The load is loaded onto the loading platform 24 from above by the boom device 30.

[Crane device 10]

  As shown in FIG. 1, the crane apparatus 10 is mounted on a truck vehicle 20. The crane device 10 is disposed between the cabin 23 and the loading platform 24. As FIG.1 and FIG.2 shows, the crane apparatus 10 is the outrigger apparatus 36, the support stand 31, the swivel base 32, the boom apparatus 30, the oil tank 49, and the hydraulic pump 41 (refer FIG. 5), A valve 42, an operation lever 50, and an oil filter 55 are provided.

[Outrigger device 36]

  As shown in FIG. 1, the outrigger device 36 is fixed to the frame 25 of the truck 20. As shown in FIG. 2, the outrigger device 36 includes an outrigger box 51, an outrigger beam 52, and a jack 53.

  As FIG.2 and FIG.3 shows, the outrigger box 51 is provided with a pair of outrigger box 511,512. The pair of outrigger boxes 511 and 512 are arranged side by side in the front-rear direction 8. An outrigger box 511 is disposed in front of the outrigger box 512. An opening 54 is formed at the left end of the outrigger box 511 and the right end of the outrigger box 512.

  In addition, since each structure of a pair of outrigger box 511, 512 is the same, below, the structure of the outrigger box 511 is demonstrated and the structure of the outrigger box 512 is abbreviate | omitted in principle, and is demonstrated as needed.

  The outrigger box 511 can store the outrigger beam 52 therein. The outrigger beam 52 is shown in dashed lines in FIG.

  The outrigger box 511 and the outrigger beam 52 are telescopic structures. The outrigger beam 52 is slidable relative to the outrigger box 511. The outrigger beam 52 moves leftward from the accommodation position shown by a broken line in FIG. 2 to an overhanging position (not shown) which protrudes to the left from the outrigger box 511. Also, the outrigger beam 52 moves from the overhanging position to the accommodation position to the right. The outrigger beam 52 stored in the outrigger box 512 also moves in the same manner as the outrigger beam 52 stored in the outrigger box 511 except that the overhanging direction is reversed. The outrigger beam 52 may be moved manually by an operator or may be moved by being driven by a cylinder or the like.

  The jack 53 extends downward from the left end of the outrigger beam 52. The jacks 53 are telescopic structures and extend and contract. When the jack 53 is contracted, the lower end of the jack 53 is positioned above the contact surface of the tire 22. When the jack 53 is extended, the lower end of the jack 53 is located below the contact surface of the tire 22. In addition, the state which the jack 53 contracted is drawn by FIGS. Also, the jack 53 is driven by a jack cylinder 48 (see FIG. 5). The jack cylinder 48 is a hydraulic cylinder.

  The outrigger device 36 changes state to the ground state and the stored state. The outrigger device 36 is in the retracted state when traveling, and is in the ground state when the boom device 30 is operated. In the grounded state, the outrigger beam 52 is in the extended position, and the jack arm extends downward from the jack body 53A. In the stored state, the outrigger beam 52 is in the storage position, and the jack arm is stored in the jack main body 53A.

[Support 31]

  As FIG. 2 and FIG. 3 show, the support stand 31 is being fixed to the center part of the left-right direction 9 in the upper surface 513 of the outrigger box 51. As shown in FIG. The support 31 protrudes upward from the upper surface 513.

[Swivel 32]

  As shown in FIGS. 2 and 3, the swivel base 32 is provided on the support base 31. The center of the swivel base 32 coincides with the center of a pivot shaft 37 described later.

Boom device 30

  As shown in FIG. 1, the boom device 30 includes a post 33, a boom 34 and a hook 35.

  As shown in FIGS. 2 and 4, the post 33 extends upward from the pivot 32. The post 33 is pivotably supported by a pivot 32 about a pivot 37 provided along the vertical direction 101. The post 33 is driven by being transmitted from the swing motor 43 (see FIG. 5) to swing. A boom 34 (see FIG. 1) is supported in an undulating manner at an upper end portion 331 of the post 33 via an undulating center pin 29.

  The boom 34 shown in FIG. 1 has a telescopic structure and is extended and retracted via an extension cylinder 44 (see FIG. 5). The boom 34 is placed in a lying down state (the state shown in FIG. 1) and a standing up state (not shown) caused by the lying down state by a hoisting cylinder 45 (see FIGS. 2 and 5) provided on the post 33. It is undulated.

  As FIG. 1 shows, the hook 35 is connected to one end of a wire rope (not shown) and is suspended from the tip of the boom 34. The other end of the wire rope is connected to a winch 38 (see FIG. 4) provided on the post 33. The winch 38 is rotated by a winch motor 46 (see FIG. 5). The winch 38 unwinds the wire rope to lower the hook 35, and winds up the wire rope to raise the hook 35.

[Oil tank 49]

  An oil tank 49 shown in FIG. 2 stores hydraulic oil. As shown in FIG. 5, the hydraulic fluid is supplied to the outrigger device 36, the swing motor 43 and the boom device 30 through the valve 42.

  As shown in FIG. 2, the oil tank 49 has a substantially rectangular parallelepiped shape. The oil tank 49 is disposed on the upper surface 513 of the outrigger box 51. The oil tank 49 is disposed on the left side of the support 31. The oil tank 49 is fixed to the outrigger box 51 by a screw or the like.

[Hydraulic pump 41]

  The hydraulic pump 41 shown in FIG. 5 is driven by the engine 21 to deliver the hydraulic oil stored in the oil tank 49 to the valve 42. Although not shown, the hydraulic pump 41 is disposed below the support 31.

  As shown in FIG. 5, a pivot motor 43 for pivoting the post 33, a telescopic cylinder 44 for telescopically moving the boom 34, a hoisting cylinder 45 for hoisting the boom 34, a winch motor 46 for rotating the winch 38, and an outrigger device 36. The jack cylinder 48 for operating the motor is driven by the hydraulic oil supplied from the hydraulic pump 41.

[Valve 42]

  The valve 42 shown in FIG. 2 adjusts the direction and flow rate of the hydraulic fluid delivered from the oil tank 49 by the hydraulic pump 41.

  As shown in FIG. 2, the valve 42 is disposed on the top surface 513 of the outrigger box 51. The valve 42 is disposed on the right side of the support 31. The valve 42 is fixed to the outrigger box 51 by a screw or the like.

  A flow passage (not shown) is formed inside the valve 42. The flow path forms a passage for hydraulic oil. The flow channel is in series with the outside through a plurality of ports. As shown in FIG. 5, one end of a hose 87 (see FIG. 2) is connected to each port. The other end of the hose 87 is connected to each of the hydraulic actuators (the swing motor 43, the extension cylinder 44, the relief cylinder 45, the winch motor 46, and the jack cylinder 48). The valve 42 and the hydraulic pump 41 are also connected by a hose (not shown).

  Further, as shown in FIG. 2, the valve 42 and the oil tank 49 are connected via an oil filter 55. The connection of the valve 42, the oil tank 49, and the oil filter 55 will be described in detail later.

  As shown in FIG. 5, the hydraulic oil delivered from the oil tank 49 by the hydraulic pump 41 flows into the flow path. Hydraulic fluid in the flow path is supplied from the valve 42 to the corresponding hydraulic actuator. The hydraulic fluid supplied to the hydraulic actuator returns from the hydraulic actuator to the valve 42. The hydraulic oil returned to the valve 42 is returned to the oil tank 49.

  A plurality of spools 85 are disposed in the flow path. Each spool 85 corresponds to each hydraulic actuator. Opening and closing of each port is switched by sliding each spool 85 in the flow path. By switching the opening and closing of each port, the flow rate is switched between the direction of the hydraulic fluid (either the direction from the flow path to the corresponding hydraulic actuator or the direction from the corresponding hydraulic actuator to the flow path). The spool 85 is opened and hydraulic fluid is supplied to the corresponding hydraulic actuator to drive the corresponding hydraulic actuator. A part of each spool 85 is exposed to the outside of the valve 42.

[Operation lever 50]

  As shown in FIG. 2, the control lever 50 is disposed in front of the outrigger device 36. As FIG. 4 shows, the control lever 50 is provided with the levers 61 and 62 arrange | positioned at the left-right both ends of the crane apparatus 10, and the rod 63 which connects the levers 61 and 62. As shown in FIG. The levers 61 and 62 are operated to swing in the front-rear direction 8. The lever 62 moves in conjunction with the operation of the lever 61, and the lever 61 moves in conjunction with the operation of the lever 62. The levers 61 and 62 and the rod 63 are provided corresponding to each of the plurality of spools 85.

  Each lever 62 is connected to an externally exposed portion of each spool 85 (see FIG. 5). Thereby, the spool 85 slides in the flow path of the valve 42 in conjunction with the operation of the levers 61 and 62 by the user, and the supply of hydraulic fluid to the hydraulic actuator is adjusted. As a result, the hydraulic actuator is driven.

[Oil filter 55]

  The oil filter 55 is for removing foreign substances (impurity such as metal powder and moisture generated inside the engine 21) contained in the hydraulic oil. As shown in FIGS. 2 and 3, the oil filter 55 is disposed on the right side of the support 31.

  As shown in FIG. 3, the oil filter 55 is connected to the valve 42 and the oil tank 49. The hydraulic oil flowing out of the valve 42 is returned to the oil tank 49 through the oil filter 55. The oil filter 55 removes foreign substances contained in the hydraulic oil flowing inside. Thus, foreign matter contained in the hydraulic oil returned from the valve 42 to the oil tank 49 can be reduced.

  The oil filter 55 is provided with two ports 56, 57. The ports 56 and 57 communicate the inside and the outside of the oil filter 55.

  The port 56 is connected to a port (not shown) of the valve 42. The port of the valve 42 connected to the port 56 is formed on the front of the valve 42. That is, the port 56 is connected to the port of the valve 42 from the front. That is, the oil filter 55 is directly connected to the valve 42. The means by which the port 56 is connected to the port of the valve 42 may be a known means such as press fitting or screwing.

  When the oil filter 55 is connected to the valve 42, the oil filter 55 is located in front of the valve 42. That is, in the said state, the oil filter 55 and the valve 42 do not overlap in the planar view which looked at the crane apparatus from upper direction. In other words, the oil filter 55 is disposed so as not to overlap the valve 42 in the vertical direction. Also, in this state, the oil filter 55 is located above the operation lever 50. That is, in the said state, the oil filter 55 and the control lever 50 overlap in planar view. In other words, the oil filter 55 is disposed so as to overlap the operation lever 50 in the vertical direction.

  The position of the port of the valve 42 is not limited to the above. For example, the port of the valve 42 may be formed on the top surface of the valve 42, and the port 56 may be connected to the port of the valve 42 from above.

  If the shapes and standards of the port 56 and the port of the valve 42 are different, the port 56 and the port of the valve 42 may be connected via an adapter for matching the shape and the standard. In this case, the adapter constitutes a part of the oil filter 55 or the valve 42 in order to match the shape and the standard. Therefore, the oil filter 55 and the valve 42 are disposed close to each other even when they are connected via an adapter.

  The direct connection includes, as described above, an adapter for matching the port shape and specifications, and the connection between the oil filter 55 and the valve 42 through the adapter that constitutes the oil filter 55 or a part of the valve 42. Be On the other hand, the direct connection does not include the connection of the oil filter 55 and the valve 42 located apart from each other via a member different from the oil filter 55 such as a hose or the valve 42. That is, the direct connection is a connection in which the oil filter 55 is supported by the valve 42 (and the adapter) without requiring other members such as a bracket while the oil filter 55 is connected to the valve 42. .

  The port 57 is connected to the oil tank 49 via a hose 88. In the state where the oil filter 55 is connected to the valve 42, the port 57 protrudes upward from the upper surface of the oil filter and is opened to the left. One end of the hose 88 is connected to the opening from the left. The position of the port 57 is not limited to the above. For example, the port 57 may be provided on the left side of the oil filter.

  The port 58 of the oil tank 49 protrudes upward from the upper surface of the oil tank 49 and is opened forward. The other end of the hose 88 is connected to the opening from the front. The position of the port 58 is not limited to the above. For example, the port 58 may be formed on the upper surface of the oil tank 49 and open upward, and the other end of the hose 88 may be connected to the opening from above. Also, for example, the port 58 may be formed on the front surface of the oil tank 49 and opened forward, and the other end of the hose 88 may be connected to the opening from the front.

  As shown in FIG. 2, the hose 88 is in front of the boom device 30, the support base 31, and the swivel base 32 and passes above the operation lever 50. In addition, wiring of the hose 88 is not restricted to the wiring shown by FIGS. For example, the hose 88 may pass behind the boom device 30, the support 31, and the swivel base 32, or may pass inside the support 31.

  In a state where the oil filter 55 is connected to the oil tank 49 via the hose 88, the oil filter 55 and the oil tank 49 do not overlap in a plan view of the crane device as viewed from above. In other words, the oil filter 55 is disposed so as not to overlap the oil tank 49 in the vertical direction.

[Operation and effect of the embodiment]

  The oil filter 55 is usually smaller than the oil tank 49 and the valve 42. Therefore, it is necessary to arrange a bracket for aligning the height of the oil filter 55 with the oil tank 49 and the valve 42 and arrange the oil filter 55 on the upper part of the bracket. According to the present embodiment, since the oil filter 55 is directly connected to the valve 42, the oil filter 55 is supported by the valve 42. Therefore, a bracket for matching the height of the oil filter 55 with the height of the valve 42 is unnecessary.

  When the oil filter 55 is disposed apart from both the oil tank 49 and the valve 42, a hose is provided for connecting both between the oil filter 55 and the oil tank 49 and between the oil filter 55 and the valve 42. It needs to be done. According to this embodiment, since the oil filter 55 is directly connected to the valve 42, a hose for connecting the oil filter 55 and the valve 42 is unnecessary, and a hose 88 for connecting the oil filter 55 and the oil tank 49. It is good if there is.

  Since the operation lever 50 swings in the front-rear direction, there is no empty space in front of and behind the operation lever 50, but there is an empty space above the operation lever 50. According to this embodiment, this empty space can be used as a space in which the oil filter 55 is disposed.

  According to the present embodiment, since the oil filter 55 is not disposed on the top surfaces of the oil tank 49 and the valve 42, a maintenance tool box or the like can be disposed on the top surface.

[Modification]

  In the above embodiment, the valve 42 and the oil filter 55 are disposed on the right side of the support base 31, and the oil tank 49 is disposed on the left side of the support base 31 (see FIG. 3). However, contrary to the above embodiment, the valve 42 and the oil filter 55 may be disposed on the left side of the support base 31, and the oil tank 49 may be disposed on the right side of the support base 31.

  In the above embodiment, each port is connected to each hydraulic actuator, hydraulic pump 41, and oil tank 49 by a hose. However, the connection may be made not only by a hose but by, for example, piping of a steel pipe.

  In the above embodiment, the oil filter 55 is located above the operation lever 50 and overlaps the operation lever 50 in the vertical direction. However, the oil filter 55 may be disposed horizontally offset from above the control lever 50. That is, the oil filter 55 may not overlap with the operation lever 50 in the vertical direction.

  In the above-described embodiment, the oil filter 55 is disposed so as to be offset from the valve 42 in the horizontal direction. However, at least a portion of the oil filter 55 may be disposed above or below the valve 42. That is, the oil filter 55 may be disposed to overlap the valve 42 in the vertical direction.

7 · · · vertical direction 8 · · · longitudinal direction 9 · · · horizontal direction 10 · · · Crane device 20 · · · truck vehicle 21 · · · engine 22 · · · · · · · · · · · · · · · · 24 cargo bed Reference Signs List 25 frame 29 undulating center pin 30 boom device 31 support base 32 swivel base 33 post 34 boom 35 hook 36 outrigger Device 37: rotation shaft 38: winch 41: hydraulic pump 42: valve 43: swing motor 44: telescopic cylinder 45: undulating cylinder 46: winch motor 48 ... Jack cylinder 49 ... Oil tank 50 ... Operation lever 51 ... Outrigger box 52 ... Outrigger beam 53 ... Jack 54 ... Opening 55 ... Oil filter 56 ... Port 57 ... Port 58 ... Port 61 ... Lever 62 ... Lever 63 ... Rod 85 ... Spool 87 ... Hose 88 ... Hose 331 ... Upper end portion 511 · · · · Outrigger box 512 ··· Outrigger box 513 · · · Top

Claims (3)

A loading type truck crane mounted on a truck vehicle,
An outrigger device fixed to the frame of the truck vehicle;
A support fixed to the above outrigger device,
A swivel provided on the support;
A boom device supported by the swivel base;
An oil tank in which hydraulic oil is stored;
A valve for supplying the hydraulic fluid to the outrigger device and the boom device;
And an oil filter for removing foreign matter contained in the hydraulic oil,
The valve and the oil tank are disposed on either the right side or the left side of the support and the other,
The oil filter is directly connected to the valve. It has a control lever that swings back and forth and adjusts the supply of hydraulic fluid to the bubble,
The load type truck crane according to claim 1, wherein the oil filter is disposed above the operation lever. The load type truck crane according to claim 1 or 2, wherein the oil filter is disposed so as not to overlap with the valve and the oil tank in the vertical direction.

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