revolution system of heavily equipment

专利摘要:
PURPOSE: A system for rotating a heavy equipment is provided to simplify the structure by removing a plurality of rotation bearings for improving the assembling of parts and restraining the assembling allowance. CONSTITUTION: A system for rotating a heavy equipment includes a housing(10) integrally coupled with a lower body and having a hollow part(12), a rotary joint(20) rotatably received in the housing, axially coupled with an upper rotation element and formed with a gear part(22) on an outer peripheral surface of a lower end part, supporting elements respectively mounted at upper and lower parts of the housing for supporting the rotary joint, a taper roller bearing interposed between the rotary joint and the inner periphery of the housing for assisting the rotation of the rotary joint, and a decelerator(30) formed of a planetary reduction gear(32) and a linear gear(34) respectively engaged with the gear part of the rotary joint.
公开号:KR20020025527A
申请号:KR1020000057422
申请日:2000-09-29
公开日:2002-04-04
发明作者:엄현식
申请人:김 태 영；씨.에스기계 주식회사；
IPC主号:

专利说明:

Revolution system of heavily equipment
[13] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning system of heavy equipment, and more particularly, to a turning system of heavy equipment in which a simple structure is greatly improved by unifying a complicated component required for turning into one component.
[14] In general, the turning system of heavy equipment has a lower body (car body) is fixed in order to improve the work efficiency, the upper body is rotatable or rotatable is installed on the lower body.
[15] The heavy machinery swing system for rotating the upper swing body with respect to the lower body includes a hydraulic motor driven by hydraulic pressure and a swing reducer for reducing the rotational speed of the hydraulic motor and transmitting it to the drive shaft of the upper swing body.
[16] Conventional heavy machinery swing systems typically include a finite rotation method of a rack & pinion method and an endless rotation method provided with a turntable swing bearing.
[17] An example of a conventional heavy-duty swing system having such a structure is disclosed in Korean Patent Publication No. 98-57547, "Support Structure of an Upper Swing Reducer for Excavator" and a planetary gear in the housing 107, as shown in FIG. Two or more planetary gear parts including one 108 gear, one sun gear 109, and an output shaft 110 are installed to reduce the rotation speed of the motor 105, and the output shaft 110 has a bearing (up and down) at the upper and lower ends of the housing 107. 112, the lower end of the pinion gear 111 is installed in the housing 107 in the reduction gear structure coupled to the pinion gear 111 and the spline for rotating the upper swing body 104 to the front end thereof. The extension bracket (1) is supported by a bearing (2) is to have a structure that is supported at both ends.
[18] In the conventional heavy machinery swing system of such a configuration, a plurality of swing bearings, swing reducers, rotary joints, etc. are separately mounted to the structure to form a system during the swing operation, so that the assembly process between the parts is cumbersome and mutual There was a fear of assembly tolerances during assembly.
[19] The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a pivoting system of heavy equipment that has improved its structure so that the pivoting structure of the heavy equipment composed of the lower body and the upper swinging body can be turned into one component. There is.
[1] 1 is a cross-sectional view showing a turning system of a conventional heavy equipment.
[2] Figure 2 is an exploded cross-sectional view showing a turning system of heavy equipment according to the present invention.
[3] Figure 3 is a cross-sectional view of the bonded state of the present invention.
[4] Figure 4 is a front view showing the installation of the present invention.
[5] Explanation of symbols on the main parts of the drawings
[6] 10 housing 12 hollow (of housing)
[7] 20: Rotary joint 22: Gear part (rotary joint)
[8] 30: reduction gear 32: planetary reduction gear
[9] 34: sun gear 42: fixture
[10] 44: cover 46: stopper
[11] 50: tapered roller bearing 60: lower body
[12] 70: upper pivot
[20] In the swing system of the present invention heavy equipment for achieving the above object, in the swing system of the heavy equipment, the upper swing structure is pivotable by the swing means installed on the lower body,
[21] The pivot means is integrally coupled to the lower body and having a hollow housing;
[22] A rotary joint accommodating to the inside of the housing to be rotatable, the upper pivot body being axially coupled, and a gear part formed on an outer circumferential surface of the lower end;
[23] Support means for supporting the rotary joint is installed on the upper and lower portions of the housing,
[24] A tapered roller bearing interposed between the rotary joint and the inner circumferential surface of the housing to assist rotation of the rotary joint;
[25] It is characterized in that the reduction gear consisting of a planetary reduction gear and a sun gear coupled to each other gears of the rotary joint is interlocked.
[26] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[27] The turning system of heavy equipment according to the present invention, with reference to FIGS. 2 to 4, is integrally coupled to the lower body 60 and has a housing 10 having a hollow 12, and rotatable inside the housing 10. A rotary joint 20 axially coupled to the upper pivot 70, support means for fixing the rotary joint 20 to the housing 10, and a gear unit formed at a lower end of the rotary joint 20. And a reducer 30 geared to the gear 22.
[28] In more detail, the rotary joint 20 has an oil supply line connected to the upper pivot 70 to be axially coupled, and a gear part 22 geared to the reducer 30 at the lower end thereof is formed.
[29] In addition, a tapered roller bearing 50 is interposed between the outer circumferential surface of the rotary joint 20 and the inner circumferential surface of the housing 10 to assist the rotation thereof.
[30] The support means includes a fastener 42 bolted to the upper surface of the housing 10, a cover 44 bolted to an upper side of the fastener 42 so as to interfere with the upper surface of the rotary joint 20, and a rotary joint. The stopper 46 is coupled to the bottom surface of the (20) in contact with the interference.
[31] The reducer 30 is coupled to the lower end of the housing 10, and is fixedly assembled with the planetary reduction gear 32 and the retaining ring 37 to which the gear part 22 of the rotary joint 20 is geared, The worm gear 36 and the worm gear 36 are gear-coupled to the lower end of the sun gear 34 and the sun gear 34 which are gear-coupled with the reduction gear 32.
[32] Unexplained reference numeral "20a" indicates a flow path 20a supplied with hydraulic pressure when the rotary joint 20 rotates.
[33] Referring to the operation of the present invention having such a structure is as follows.
[34] First, the assembly process will be described. The rotary joint 20 is coupled to the inside of the housing 10 fixed to the lower body 60, and then the drive shaft of the upper pivot 70 into the rotary joint 20. Axial coupling.
[35] At this time, the fastener 42 is fixedly installed with bolts so as to be interposed between the outer circumferential surface of the rotary joint 20 and the upper surface of the housing 10, and the cover 44 contacting the upper surface of the rotary joint 20 is fixed to the fastener 42. Bolt to the upper surface of).
[36] Subsequently, the stopper 46 is brought into surface contact with the lower surface of the rotary joint 20 from the outside of the housing 10.
[37] Then, the gearbox 30 is coupled to the lower end of the housing 10 so as to be geared so as to interlock with the gear part 22 of the rotary joint 20.
[38] Subsequently, after the assembly is completed, the driving force of the hydraulic motor (not shown in the drawing) is transmitted to the reduction gear 30, and at the same time, the rotational force is transmitted to the rotary joint 20 geared to the planetary reduction gear 32 while being decelerated.
[39] The rotary joint 20 transmits the rotational force to the drive shaft of the upper pivot 70 while the rotation thereof is assisted by the tapered roller bearing 50 to perform the function of rotating the upper pivot 70.
[40] That is, when the present invention is summarized and described, the rotary joint 20 integrated in the upper pivot 70 is accommodated and installed to be rotatable in the housing 10 fixed to the lower body 60.
[41] The present invention as described above is to improve the structure so as to simplify the pivot means for rotating the upper swing body from the lower body, according to the present invention is a simple structure by eliminating unnecessary components (such as a number of swing bearing) Since it is made of, as well as simplify the assembly process between each part, it is possible to reduce the cost of manufacturing parts, and also has the effect of suppressing the occurrence of assembly tolerances when assembling each other.

权利要求:
Claims (2)
[1" claim-type="Currently amended] In the swing system of the heavy equipment, the upper swing structure is pivotable by the swing means installed on the lower body,
The pivot means is integrally coupled to the lower body 60 and the housing 10 having a hollow 12,
A rotary joint 20 accommodated in the housing 10 to be rotatable and the upper pivot 70 is axially coupled, and a gear 22 is formed on an outer circumferential surface of the lower end;
Support means for supporting the rotary joint 20 is installed on the upper and lower portions of the housing 10,
A tapered roller bearing 50 interposed between the rotary joint 20 and an inner circumferential surface of the housing 10 to assist rotation of the rotary joint 20;
Rotating system of heavy equipment, characterized in that the reduction gear (30) consisting of the planetary reduction gear 32 and the sun gear (34) coupled to the gear portion 22 of the rotary joint 20 is interlocked.
[2" claim-type="Currently amended] The method of claim 1, wherein the support means is a fastener (42) coupled to the upper surface of the housing (10),
A cover 44 which is bolted to the fixture 42 and is in surface contact so as to suppress vertical movement of the rotary joint 20;
And a stopper (46) inserted into and installed on the lower surface of the housing (10) so as to be in contact with the lower surface of the rotary joint (20).

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同族专利:

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公开号 | 公开日

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KR100379235B1|2003-04-08|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2000-09-29|Application filed by 김 태 영, 씨.에스기계 주식회사

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2000-09-29|Priority to KR10-2000-0057422A

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2002-04-04|Publication of KR20020025527A

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2003-04-08|Application granted

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2003-04-08|Publication of KR100379235B1

优先权:

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申请号 | 申请日 | 专利标题

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KR10-2000-0057422A|KR100379235B1|2000-09-29|2000-09-29|revolution system of heavily equipment|