JPS5811234A - Slewing device for construction machinery - Google Patents

Abstract

PURPOSE:To make easier the assemble or disassemble of a slewing device by fixing any one of the inner and outer rings of the rotator to a frame through paired rings held in fixed state by push-up. CONSTITUTION:In a slewing device, its rotary frame 6 is turned by turming a turning pinion 8 gearing with the inside thread 1 of the inner ring 2 fixed to a vehicle frame 3. In this case, an insertion ring 9 is fixed to the lower side of the inner ring 2 and fitted into a receiving ring 10 through the coupling of a convexed part 9' and a concaved part 10'. Also, a positioning pin 12 is set on the lower side of the insertion ring 9 and coupled with a guide plate 13 fixed to the vehicle frame 3. On the vehicle frame 3, an oil-pressure cylinder 15 is provided and a wedge 16 provided at the tip of the piston rod of the cylinder 15 is inserted into between both the rings 9 and 10 to push up the insertion ring 9 in order to obtain a strong supporting condition for the receiving ring 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a swing device for J11 heavy machinery in which a working machine is swingably supported on both sides of the L and L sides.

As shown in Fig. 1, the conventional swing device is fixed to a circular ring 2 having one incisor of a swing bearing arm with a large number of bolts 4 to a frame 3, and a large number of bolts are fixed to a main outer ring 6' to a swing body frame 6. It is fixed by the bolt 7 of
The body 7 is supported on the frame 611il by interlocking with the h3-order pivot hignion 8t.

As the turning pinion 8 rotates, the rotating body frame 6 and outer ring 5 are driven to rotate.

The rt, In cases where the vehicle cannot be driven until it is separated from the swing wheel to prevent damage to general overpass bridges, etc., the disadvantage of installing a large number of bolts is that it takes a lot of time to remove them.几.

The present invention is a novel turning device that can be easily disassembled and assembled and is firmly disposed on seven frames of the vehicle body. The purpose is to provide.

Next, details of the groove formation meeting of the present invention are based on a specific example t.
explain.

Reference numeral 9 indicates a ring 01θ which is integrally fixed to the lower surface of the inner ring 2 with a large number of bolts 20, and has rainbow protrusions s9' provided at equal intervals on the outer part of the lower part of the insertion ring 9. 11, the vehicle frame 3
The protrusion 9' is fixed to the lower part of the circumferential side thereof, and there is a receiving seat formed in a concave shape for receiving the protruding part 9'.
It has the same number of l-n arrangement protrusions 9', and has the same number of receiving seats 10',
The circumference between 10' forms an inclined surface lo' which inclines inward as it goes downward.

Then, when inserting the insertion ring 9 into the receiving ring IO, the protrusion 9' of the insertion ring 9 and the inclined surface 10# are brought into contact with each other, and the insertion ring 9 is moved downward by +t-n. ~ As a guide, the insertion ring 9 occupies a position that is not biased in the direction of the diameter direction of the receiving ring lO.

Next, the insertion ring 9 is rotated to fit the protrusion 9' into the receiving seat 10'. 12, m insertion fJ
This positioning pin 12 is a positioning pin provided on the lower surface of J9, and when the guide plate I3 fixed to the vehicle frame 3 is rotated to fit into the protrusion 9' and the receiving seat 10'. This abutting state is the proper fitted state of the insertion ring 9 into the receiving ring 10 described above. Reference numeral 14 denotes a rotation drive unit for the turning pinion 8. This rotary drive 81514 is driven by an engine and a hydraulic unit (5 not shown in the figure) '9r installed on the revolving body frame 6, and ρ15, which is the driving source, is connected to P3 of the receiving ring 10 on the vehicle 2 frame 3 in the center. This is a hydraulic cylinder installed in the piston, and a necking member 16 is provided at the tip of the piston mid. When the hydraulic cylinder 15 is properly fitted into the receiving ring 10 (marked with *), the hydraulic cylinder 15 is fully extended. By driving, this wedge member 16 is pushed away toward the insertion ring 9tk, and as a result, the insertion ring 9 is pressed against the receiving ring IO and is firmly supported. 17 is the wedge material 1
The guide plate provided on the vehicle frame 3 to guide the movement of the wedge member 16' is a guide plate provided in the vehicle frame 3 to guide the movement of the wedge member 16. Anti-rotation pin 18 provided on the lower surface of the insertion ring 9 described in 811r
However, when the insertion ring 9 is properly fitted into the receiving ring 10 described above, the insertion ring 9 is fitted by extending and driving the hydraulic cylinder 15t'. Once the shift is complete, the circumferential movement of the insertion ring 9 relative to the receiving ring 10 is completely restricted. The detent via 18 on the other side contacts the guide plate 17 when the insertion ring 96 is rotated in a direction to remove it from the entire receiving ring lO, and in this abutting position, the insertion ring 9
tl - There is also a positional relationship that allows it to be moved upward. Reference numeral 19 denotes a fixing device whose purpose is to fix the rotating body frame 6t.

If the revolving body frame 6 is fixed, the rotating pinion 8, which rotationally drives the revolving body frame 6 during crane work, is used to rotate the circular ring 2t and the I of the receiving ring 1° and the insertion ring 9.
J# You can leave.

Next, the action will be explained.

Regarding the assembly of the rotating body frame 6 to the vehicle body frame 3.

In this case, it is supported by the jack (-not shown)
A vehicle is inserted into the lower part of the spiral body frame 6 so that the insertion ring 9 and the receiving ring 10 are facing each other.

Slightly lower the insertion ring 91111' with the jack Yr111.

At this time, it may be misleading to consider that the inclined surface lσ' and the protruding portion 9' extend somewhat in the circumferential direction and the diametrical direction.

Displacement in the circumferential direction is fixed by fixing the rotating body 7 frame 6.

This can be corrected by rotating the turning pinion 8.

7. The diametrical deviation 11 can be corrected by the inclined surface 10" acting as a guide when the insertion ring 9 is lowered into the receiving ring 10. In this way, the protruding part 9' has a tooth contact in the lower position of the entire inclined surface 10". This state m corresponds to the state shown in FIG. This state is regulated.

The insert 119 is properly fitted into the receiving ring 10.

Next, when the hydraulic cylinder 15t is driven to extend, the wedge member 16 pushes up the insertion ring 91r and the recess 11
The insertion ring 9 is completely fixed to the receiving ring 10, and the assembly of the rotating body frame 6 to the single frame 3 is completed.

Regarding separation of the rotating body frame 6 from the vehicle frame 3.

In this case, the rotating body frame arm and both frames 3 are identified by the fixing device 19. Next, hydraulic cylinder 1
An insertion ring with a wedge material 16 reduced to 5? ``11 Masaaki-11234 (3) 9's press on the receiving ring 10 is released, and the fitting state of the recess 16' and the locking pin 18 is checked.Subsequently, the turning pinion 8 is driven. When the insertion ring 9 is rotated, the one-turn stopper 718 comes into contact with the guide plate 17. In this state, when the fixing device 19 fixes the rotating body frame 6, if the jack is driven to extend, the rotating body frame 6t- It can be separated from the vehicle 2 lanes 3.

In the above embodiment, the insertion ring 9 was provided on the circular ring 2@, and the receiving ring 10 was provided on the vehicle 7 frame 3 side, but as shown in the fourth frame,
A receiving ring may be provided on the inner ring 29/A, and an insertion ring may be provided on the vehicle 2 frame 3@. Alternatively, the inner ring 2 may be fixed to the revolving body frame 6, and an insertion ring may be provided on the outer ring 5 at the outer side +11' of the outer ring 5 having an insertion ring at the lower part thereof, and the outer ring may be driven by a turning pinion.

As described above, in the present invention, it is easy to disassemble and assemble, and once it is placed on the 7 frames of the vehicle body, it is fixed firmly. 1. The work machine can be smoothly rotated to carry out work.

9

[Brief explanation of the drawing]

! Figure 1 is a cross section showing a part of a conventional swing device, Figure 2 is a cross section showing an embodiment of the present invention, Figure 3 is a plan view of the main part showing an embodiment of the present invention. 1! 4 Figures 1 and 1 of the present invention! FIG. 2 is a sectional view of the swing device shown in the ljJmfl meeting. 6: Swivel frame 8: Swinging binocular/2: FP 3 wheels 5: Outer ring l: Teeth Mu: Bearing 9.10: Ring 3: Single frame 15: Hydraulic cylinder 16: <Rust material 18
:(B) Stopping pin 16': Recessed part

Claims (2)

[Claims] (1) Swinging body frame, a bearing in which either one of the rotating Binioff 1-circle ring or the outer ring provided on the rotating body frame is fixed to the rotating body frame, a orientation, the outer ring is not fixed to the rotating body frame There are teeth on the side ring that mesh with #J6 pinion for turning. The ring provided at the lower part of the ring provided with the gearing is fixed to the IIT body 2 frame, and the n@ki ring is inserted from above, and the rotation of the ring in this inserted state causes the fRm pi ring to be released upward. The disabling ring is fixed to the inner main body frame t of II[1+, and is brought into contact with the lower surface of the ring provided at the bottom of the ring provided with the IIr gearing by the extension movement of the hydraulic cylinder f′L. Push the ring upwards
A swing device for construction machinery characterized by having a wedge member that can be rotated. (2) A revolving body frame, a bearing with one or two of the three wheels or the outer ring fixed to the revolving body frame, one of the above-mentioned inner and outer rings of the revolving body Teeth that are provided on the ring on the non-fixed side of the frame and mesh with the turning pinion. A ring provided at the lower part of the ring provided with teeth, a ring that is fixed to the vehicle body frame and inserted from the above-mentioned direction, and that makes it completely impossible to remove the ring upwardly by rotating the ring in this inserted state; In this fitted state, *, the ring fixed to the body frame is fixed on the body frame on the circular side.
A swing device for a construction machine, characterized in that a recess is fitted into a locking pin provided on the lower surface of a ring provided at the lower part of the ring provided with the gearing for the extension movement of the hydraulic cylinder.