JP4236550B2 - Tank mounting structure for swivel work machine - Google Patents

Description

  The present invention relates to a tank mounting structure in a turning work machine such as a backhoe.

Conventionally, there is a tank mounting structure shown in Japanese Patent Laid-Open No. 11-932303 in a turning work machine (backhoe).
In this tank mounting structure, a fuel tank is installed in front of a hydraulic pump arranged on a swivel, and one side of the fuel tank is brought into contact with one side of the hydraulic pump, a mounting band is wound around the fuel tank, and both ends thereof Is attached to a pair of left and right brackets arranged on the left and right sides of the hydraulic pump, so that the fuel tank is attached to the swivel base via an attachment band.
JP-A-11-932303

In the conventional tank mounting structure, after attaching one end of the mounting band to one bracket, wrap this mounting band around the fuel tank, attach the other end of the mounting band to the other bracket, The mounting band had to be tightened while adjusting the position, and the installation work of the fuel tank was very troublesome.
Further, since the position of the fuel tank in the left-right direction cannot be determined unless the attachment band is wound around the fuel tank and the attachment band is tightened, the work for adjusting the position of the tank is very troublesome.

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a tank mounting structure for a turning work machine in which tank mounting is simple and position adjustment is easy.

In order to achieve the above object, the present invention takes the following technical means.
That is, the technical means for solving the problems in the present invention includes a receiving member that contacts the side surface of the tank on the swivel base, a support base at a position facing the receiving member, and a base frame in which the tank is disposed. provided, wherein the support table, provided the tank receiving a clamping member for pressing nipping possible position fixed to the member by moving toward the receiving member in contact with the opposite sides of the tank which is disposed on the base frame, wherein Position restricting means for restricting the movement of the tank in the direction intersecting the pressing direction is provided on both the receiving member side and the holding member side, and the position restricting means is provided on the receiving member above the base frame. a receiving-side through hole that is, data in the member side receives well as side engages the bulge formed by receiving member to the pressing to the receiving side through hole of the receiving-side through-hole facing the tank A receiving-side engaging portion for restricting the movement in the direction orthogonal to the vertical direction and the pressing direction of click, the clamping member opposite to said opposing pressing side engagement which is bulged formed on the side surfaces of the tank in the upper side of the base frame The holding portion is provided on the holding member above the base frame and is pressed against the tank while the receiving side through hole and the receiving side engaging portion are engaged when the holding member is pressed. It has a pressing side through hole that engages with the pressing side engaging portion and restricts movement of the tank in the vertical direction and the direction crossing the pressing direction.

Further, the tank is a fuel tank, the receiving side engaging portion is provided in a center portion in the left-right direction on the rear side surface of the fuel tank, and the pressing side engaging portion is in a left-right direction center portion on the front side surface of the fuel tank. Is preferably provided.
According to this, the fuel tank can be fixed on the swivel base by sliding the clamping member in the pressing direction and then fixed to the support base, and the position of the tank can be easily determined by the position restricting means. be able to.
In addition, the receiving side engaging part and the pressing side engaging part ( concavo-convex engaging part ) formed in the tank are related to the receiving side through hole and the pressing side through hole ( engaged part ) formed in the receiving member or the clamping member. By combining, the tank can be positioned .

According to another technical means of the present invention, a cover body is provided on the side of the swivel base, and on the inner side of the cover body, a mounting table for mounting the tank, a receiving member that contacts the side surface of the tank, A support base is provided at a position opposite to the receiving member, and the holding member that presses and holds the tank against the receiving member by moving toward the receiving member in contact with the opposite side surface of the tank is provided on the support base. The position restricting means is provided so that the position can be fixed in a state in which the cover body is removed, and the position restricting means for restricting the movement of the tank in the direction intersecting the pressing direction is provided on both the receiving member side and the holding member side. The means includes a recessed engaged portion provided on the receiving member, and a tank provided on a side surface of the tank facing the receiving member and presses against the receiving member to engage with the recessed engaged portion and on the receiving member side Tank up and down direction in A convex engaging portion for restricting movement in a direction crossing the pressure direction, a convex engaging portion provided on the opposing side surface of the tank facing the clamping member, and the clamping member provided on the clamping member. When the member is pressed, the tank is pressed against the tank in a state where the concave engaged portion of the receiving member and the convex engaging portion of the tank are engaged with each other, and is engaged with the convex engaging portion to move the tank in the vertical direction and It has a concave engaged portion that restricts movement in a direction intersecting the pressing direction .

According to this, the fuel tank can be easily attached by moving the clamping member in the pressing direction to hold the fuel tank and fixing the position, and the receiving side engaging portion and the pressing on the front and rear side surfaces of the fuel tank can be attached. Positioning of the fuel tank is facilitated by engaging the receiving side through hole or the pressing side through hole ( concave engaged portion ) of the clamping member or receiving member with the side engaging portion ( convex engaging portion ). be able to.

  The tank can be easily attached and the position can be easily adjusted.

Hereinafter, embodiments of the present invention will be described together with illustrated examples.
As shown in FIGS. 4 to 7, the turning work machine 1 according to the embodiment of the present invention has a vertical axis X around the upper part of a traveling device 3 having a pair of left and right crawler traveling bodies 2 via a turning bearing. The swivel 4 is rotatably mounted on the swivel 4, and a work device 5 is provided at the front end of the swivel 4.
The work device 5 includes a swing bracket 12 attached to the front end of the swivel 4 so as to be swingable left and right, a boom 6 connected to the swing bracket 12 so as to be swingable up and down, and swinging up and down at the tip of the boom 6. The excavation work device has an arm 7 that is movably connected and a bucket 8 that is pivotally connected to the tip of the arm 7, and the swing bracket 12, the boom 6, the arm 7, and the bucket 8. Are actuated by hydraulic cylinders 9, 10 and 11, respectively. In addition, this working apparatus 5 is good also as what attached other apparatuses, such as a breaker, instead of the said bucket 8. FIG.

A swivel joint 39 is disposed at the position of the pivot axis X, and a swing motor 37 is disposed in the vicinity thereof. The hydraulic actuators 9, 10, 11 and the like are controlled on the front left side of the swivel base 4. A control valve 38 is provided.
A bonnet 15 is mounted on the rear portion of the swivel 4, and the bonnet 15 is made of synthetic resin or metal and mainly covers the outside of the engine 27, the radiator 30, the hydraulic pump 28, the fuel tank 40, and the like. .
On the front side of the bonnet 15, as shown in FIGS. 5 and 7, a control unit 14 having a driver's seat 16, a control floor 17, control levers 18 and 19, a control pedal 20 and the like is provided. The control unit 14 is surrounded by a cabin 21 provided at the front part on the swivel 4.

The control unit 14 is provided with a control floor 17 at the front part of the swivel 4, a travel operation lever 18 and an operation pedal 20 are disposed on the front part side of the control floor 17, and a seat is provided on the rear side of the control floor 17. A driver's seat 16 is mounted via a platform 88, and a control box 89 having an operation lever 19 is provided on the left and right sides of the driver's seat 16. A portion where the operation lever 18 and the operation pedal 20 are provided is covered with an operation portion cover 70.
The control floor 17 covers the entire front side of the driver's seat 16 so as to surround the operation unit cover 70, and the left and right sides of the front end thereof are inclined forward and upward to serve as a footrest for the operator. A wide space is formed below the inclined portion 17A in the vertical direction, and a control valve 38 is disposed in this space.

The swivel base 4 has a left and right side portion and a front portion formed in a straight line shape in a plan view, and a rear end portion formed in an arc shape. The rear end portion protrudes rearward from the traveling device 3. The pivot axis X is arranged in front of the front and rear center of the swivel base 4, and the rear end of the swivel base 4 protrudes left and right from the traveling device 3 even when the swivel base 4 is swung left and right. It is like that. The driver's seat 16 is disposed on the rear side of the pivot axis X, and at the front and rear of the swivel base 4 and at substantially the center of the left and right.
A plate-like base frame 23 is provided at the bottom of the swivel base 4, and counterweights 24 and 25 are provided at the rear ends of the base frame 23. The left and right sides and the front of the base frame 23 are covered with a cover body 26. Covered by. The counterweights 24, 25 have a main weight 24 disposed at the center of the left and right sides and side weights 25 disposed on both the left and right sides of the main weight 24. The side weights 25 are swiveled. The protector protects the left and right corners of the rear end of the base 4.

A mounting bracket 34 for mounting the work device 5 is provided at the front end of the base frame 23 so as to protrude forward, and a pair of left and right vertical ribs 35 extends rearward from the mounting bracket 34 (substantially C-shaped). ).
An engine 27 is mounted horizontally on the rear upper surface of the base frame 23, a driver seat 16 is disposed on the front side of the engine 27, and a fuel tank 40 is disposed on one side of the driver seat 16 in the left-right direction (right side). A hydraulic oil tank 41 is disposed on the other side (left side).
That is, the fuel tank 40 is disposed on one side of the swivel base 4 in the left-right direction, and the hydraulic oil tank 41 is disposed on the other side in the left-right direction.

A hydraulic pump 28 is directly connected to one side (right side) of the engine 27 in the left-right direction, and a fan 29 and a radiator 30 are disposed on the other side (left side) in the left-right direction. In the present embodiment, a suction-type radiator 30 is employed, and the left and right side weights 25 are formed with an outside air inlet 31 and a discharge port 32.
A partition wall 36 extending in the left-right direction is provided in the middle of the front and rear of the base frame 23, and the engine 27, the hydraulic pump 28, the radiator 30, and the like are disposed on the rear side of the partition wall 36. That is, the partition wall 36 partitions the engine room where the engine 27, the hydraulic pump 28, the radiator 30 and the like are disposed from the driver's seat 16 side.

The base frame 23 is provided with a mounting table 59 on which the fuel tank 40 is mounted. The mounting table 59 allows the fuel tank 40 to be installed horizontally with respect to the swivel table 4. . The mounting table 59 is disposed below the fuel tank 40 and supports the lower part of the fuel tank 40. A cushion material 75 capable of absorbing an impact is interposed between the mounting table 59 and the fuel tank 40, and vibration transmitted to the fuel tank 40 is reduced by the cushion material 75.
A suction hose 42 is disposed on the rear side of the partition wall 36 in the left-right direction. One end of the suction hose 42 is connected to the rear part of the hydraulic oil tank 41 and the other end is connected to the hydraulic pump 28. An external return filter (oil filter) 43 is disposed on the front side of the hydraulic oil tank 41.

The hydraulic oil tank 41 disposed on the left side of the swivel 4 is disposed in the range of the bonnet 15 on the rear side and disposed in the range of the cabin 21 on the front side of the hydraulic oil tank 41. The external return filter 43 is disposed below the control floor 17.
The fuel tank 40 can be fixed to the base frame 23 by an attachment device 60 that is disposed on the front side of the partition wall 36 and attaches the fuel tank.
As shown in FIGS. 1 to 3, 6, and 7, the fuel tank 40 includes a main portion 40 </ b> A that is long in the front-rear direction and wide in the left-right direction, and a lower bulge portion that bulges from the rear lower side of the main portion 40 </ b> A 40B and an upper bulging portion 40C that bulges upward from the rear upper side and is accommodated in the bonnet 15, and is disposed within the side surface range of the cover body 26 of the swivel base 4 and the bonnet 15, and swivels the cabin 21. Without removing from the base 4, the cover body 26 and the like can be removed to the outside.

The fuel tank 40 is formed such that the lateral width is larger than the front side from the substantially central part in the front-rear direction to the rear, and the rear width of the fuel tank 40 is wider than the front width.
A fuel cylinder 72 directed upward is projected from the upper bulging portion 40C of the fuel tank 40, and one end of a flexible extension pipe 73 is connected to the fuel cylinder 72, and the other end of the extension pipe 73 is connected to the other end of the extension pipe 73. It is connected to the oil supply pipe 74. On the front and rear side surfaces of the main portion 40A of the fuel tank 40, that is, on both front and rear side portions of the fuel tank 40, convex engaging portions 61F and 61R that bulge back and forth are formed.
The convex engagement portion 61F is located at the substantially left and right central portion of the front side surface of the fuel tank 40, and the convex engagement portion 61R is located at the substantially right and left central portion of the rear side surface of the fuel tank 40. When the tank 40 is installed, the left and right balance of the fuel tank 40 can be maintained.

The attachment device 60 for attaching the fuel tank 40 is disposed at a receiving member 36A that abuts one side surface (rear side surface) of the fuel tank 40, and at a position (front side of the fuel tank 40) opposite to the receiving member 36A. 40, and a support base 63 that fixes the clamping member 62 on the swivel base 4. The receiving member 36A and the clamping member 62 are arranged before and after the mounting table 59. Yes.
The portion of the partition wall 36 disposed on the rear side surface of the fuel tank 40 also serves as a receiving member 36A, and the rear side surface of the fuel tank 40 abuts on the partition wall 36.

The receiving member 36A is provided with an engaged portion 64R that engages with the convex engaging portion 61R of the fuel tank 40, and the engaged portion 64R is formed by a circular through hole that passes therethrough. .
In addition, a plate-shaped receiving member 36 </ b> A may be erected separately from the partition wall 36 behind the fuel tank 40.
The clamping member 62 is configured by a substantially L-shaped plate material (L-shaped angle), and includes a pressing portion 66 that presses one side surface (front side surface) of the fuel tank 40 and an attachment portion 67 that is attached to the support base 63. Have.

Two vertical mounting holes 68 are formed in the mounting portion 67, and the vertical mounting holes 68 are elongated holes extending forward and backward.
Accordingly, by inserting a fastener 69 such as a screw into the mounting hole 68 of the clamping member 62 and screwing the fastener 69 into the screw hole 71 of the support base 63, the clamping member 62 is moved back and forth via the support base 63. It is attached to the turntable 4 so as to be movable in the direction.
The pressing portion 66 of the clamping member 62 is provided with an engaged portion 64F that engages with the convex engaging portion 61F of the fuel tank 40. The engaged portion 64F is formed by a circular through hole. ing.

Therefore, the engaged portions 64F and 64R formed on the receiving member 36A or the holding member 62 are detachable from the engaging portions 61F and 61R, and the holding member 62 is movable in the pressing direction. .
With the above configuration, the fuel tank 40 is attached by placing the lower bulging portion 40B of the fuel tank 40 on the mounting table 59 and engaging the engaging portion 61R of the fuel tank 40 with the engaged portion 64R of the member 36A. . Thereafter, the clamping member 62 is attached to the support base 63, the engaged portion 64F of the clamping member 62 is engaged with the engaging portion 61F of the fuel tank 40, and the clamping member 62 is slid rearward by the pressing portion 66. After pressing the front side surface of the fuel tank 40, the fastening portion 69 is fastened and the clamping member 62 is attached to the swivel base 4.

At this time, the engaging portions 61F and 61R of the fuel tank 40 are engaged with the engaged portion 64R of the member 36A and the engaged portion 64F of the clamping member 62, so The movement is regulated, and the fuel tank 40 is fixed by the mounting device 60 so as not to move up and down, front and rear, and left and right.
That is, the attachment device 60 and the fuel tank 40 are provided with position restricting means for restricting the movement of the fuel tank 40, and the position restricting means are engaging portions 61F and 61R formed on the front and rear side surfaces of the fuel tank 40. And the engaged portions 64F and 64R formed on the receiving member 36A and the holding member 62.

In other words, the position restricting means restricts the movement of the fuel tank 40 in a direction perpendicular to the direction in which the sandwiching member 62 presses the fuel tank 40. By providing the position restricting means, the sandwiching member 62 is provided. The fuel tank 40 can be attached and the positioning of the fuel tank 40 can be facilitated by simply moving the fuel tank 40 in the pressing direction.
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the claims.
For example, as a type of the swivel work machine, a type in which the rear end of the swivel base protrudes from the front and rear and left and right widths of the traveling device (so-called standard machine) is shown. It is possible to make it a type that does not protrude from (so-called backward small turning type).

In the above embodiment, the engaged portions 64F and 64R that engage with the engaging portions 61F and 61R of the fuel tank 40 are provided on both the clamping member 62 and the partition wall 36 (receiving member 36A). An engaged portion may be provided on one of the member 62 and the receiving member 36A.
At this time, the engaging portions 61F and 61R provided in the fuel tank 40 are provided on either one of the side surfaces correspondingly, and the position restricting means is either on the holding member 62 side or on the receiving member 36A side. It becomes.
In the above embodiment, the engaging portions 61F and 61R of the fuel tank 40 are convex. However, the engaging portions 61F and 61R of the fuel tank 40 may be concave. At this time, as a matter of course, the sandwiched member 62 and the engaged portions 64F and 64R of the receiving member 36A have a corresponding convex shape.

In the above embodiment, the tank mounting structure of the turning work machine 1 of the present invention is applied to the fuel tank 40, but may be applied to, for example, the hydraulic oil tank 41 and other tanks.
Further, in the above embodiment, the engaged portions 64F and 64R of the clamping member 62 and the receiving member 36A are configured by through holes, but may be U-shaped grooves as shown in FIG.
Further, in the above embodiment, the engaging portions are formed on the front and rear side surfaces of the fuel tank 40, but instead, they may be formed on the left and right side surfaces.

It is the side view which attached the fuel tank to the turning working machine concerning embodiment of this invention. It is an attachment top view of a fuel tank. It is an attachment front sectional view of a fuel tank. It is a whole side view of a turning work machine. It is a right view of a turntable. It is a top view inside a turntable. It is a top view of the turntable which abbreviate | omitted the cabin. It is another attachment front cross section of a fuel tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating work machine 4 Rotating base 40 Fuel tank 36A Receiving member 61F, 61R Engaging part 62 Holding member 63 Supporting base 64F, 64R Engaged part

Claims (3)

A receiving member abuts on the swivel base to the side of the tank, a support base at a position opposite to the receiving member, and a base frame provided to place the tank, the support base, the tank disposed on the base frame the clamping member for pressing clamping members receiving the tank by the opposing sides in contact moves toward the receiving member provided so as to be stationary, intersecting the pressing direction to both the receiving member side and the clamping member side Position restriction means for restricting movement of the tank in the direction to be
The position regulating means, the presses and the receiving side through hole provided in the receiving member at the upper side, the receiving member is bulged formed on a side surface of the receiving-side through-hole facing the tank of the base frame a receiving-side engaging portion for restricting the movement in the direction orthogonal to the vertical direction and the pressing direction of the tank in the member side received while receiving side through hole and engaging the clamping member facing the tank upper side of the base frame A pressing-side engaging portion that bulges on the opposite side surface , and a receiving-side through hole and a receiving-side engaging portion that are provided on the holding member above the base frame and are pressed by the holding member. that has a pressing-side through hole for restricting the movement in the direction orthogonal to the vertical direction and the pressing direction of the engage tank to the pressing-side engaging portion as well as pressed against the tank in a state that was engaged Swivel characterized by Tank mounting structure of the work machine. The tank is a fuel tank, the receiving side engaging portion is provided at the center in the left-right direction on the rear side of the fuel tank, and the pressing side engaging portion is provided at the center in the left-right direction on the front side of the fuel tank. tank mounting structure for swiveling work machine according to claim 1, characterized in that are. A cover body is provided on the side of the swivel base. Inside the cover body, a base frame in which the tank is disposed, a receiving member that abuts a side surface of the tank disposed in the base frame, and the receiving member are opposed to each other. A support base is provided at a position, and the holding member that presses and holds the tank against the receiving member by moving toward the receiving member while abutting the opposite side surface of the tank is attached to the support base in a state where the cover body is removed. Position fixing means is provided, and position restricting means for restricting movement of the tank in a direction intersecting the pressing direction is provided on both the receiving member side and the clamping member side,
The position regulating means, the presses and the receiving side through hole provided in the receiving member at the upper side, the receiving member is bulged formed on a side surface of the receiving-side through-hole facing the tank of the base frame a receiving-side engaging portion for restricting the movement in the direction orthogonal to the vertical direction and the pressing direction of the tank in the member side received while receiving side through hole and engaging the clamping member facing the tank upper side of the base frame A pressing-side engaging portion that bulges on the opposite side surface , and a receiving-side through hole and a receiving-side engaging portion that are provided on the holding member above the base frame and are pressed by the holding member. that has a pressing-side through hole for restricting the movement in the direction orthogonal to the vertical direction and the pressing direction of the engage tank to the pressing-side engaging portion as well as pressed against the tank in a state that was engaged Swivel characterized by Tank mounting structure of the work machine.

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