A kind of tower crane device and operation method thereof
Technical field
The invention belongs to building machinery field, especially a kind of tower crane device and operation method thereof.
Background technology
The toothed disc of tower crane device is often exposed among operating environment, thus is easily subject to the pollution of the solid dirts such as sandstone.
When tower crane is by this pollution, running can produce squeaky noise, and normally using of equipment can be affected, cause potential safety hazard and reduction of service life.
Summary of the invention
It is an object of the invention to provide a kind of tower crane device and operation method thereof, to overcome the defect of prior art.
A kind of tower crane device according to the present invention, the pivoted frame of the stock that including main tower, is set on main tower top, the toothed disc being fixedly mounted on stock top and toothed disc rotatable engagement and fix the pivoted arm being connected with pivoted frame, it is fixedly installed rotational drive motor on described pivoted frame, described rotational drive motor drives described pivoted frame and pivoted arm rotation by being secured to the little gear and described the engaging of toothed disc that connect, wherein
Being provided be diametrically opposed to one another two toothed disc cleaning devices at described toothed disc on described pivoted frame, each described toothed disc cleaning device the most all includes the portion of being slidably installed, cleaning enforcement division and radial drive portion;The described portion that is slidably installed coordinates with the chute in described pivoted frame base plate with radially sliding, and the inner side of described cleaning enforcement division is provided with brush device and performs cleaning function to engage with the periphery of toothed disc, and described radial drive portion is rotatably mounted with roller,
Described tower crane device also includes cleaning device sliding driving device, described cleaning device sliding driving device includes the elliptical section on top and the gear ring portion of bottom, described gear ring portion engages with driving internal gear, described elliptical section is installed in rotation on stock by the bearing at endoporus, and the generally oval shape of its peripheral shape, elliptoid periphery is for engaging with described roller, thus said two toothed disc cleaning device can be driven to radially slide when described elliptical section is driven in rotation.
Wherein, described driving internal gear is driven motor to drive by the slip being arranged on described stock.
Wherein, described elliptoid periphery is provided with groove at the end points position of oval major axis and short axle, described groove for engaging with location with described roller, so that: when described slip drives motor power-off and described rotational drive motor to run, described cleaning device sliding driving device can rotate with described pivoted frame, and when described slip drives motor operation and described rotational drive motor power-off, described cleaning device sliding driving device rotates relative to described pivoted frame.
According on the other hand, the operation method of described tower crane device, wherein, when toothed disc is cleaned by needs, groove at the short axle of described elliptical section is engaged, so that described brush device engages the periphery of described toothed disc, afterwards with described roller, described pivoted frame is come back rotation, thus described toothed disc is cleaned;At the end of cleaning so that the groove at the major axis of described elliptical section engages with described roller, so that the disengaging of described brush device and the contacting of described toothed disc.
Pass through the present invention, owing to have employed, arrange in pivoted frame drives the circumferential spacing of gear can the cleaning device that is diametrically opposed to one another of at least two of radial expansion, it is thus able to during pivoted frame rotates realize the cleaning to toothed disc, thus does not affect the normal use of tower crane;Further, its cleaning force is in opposite direction, it is possible to make stability under loading;The cleaning to whole toothed disc circumference it is capable of when pivoted frame only turns over the angle of half-turn or less.Gear ring bottom cleaning device engages with internal gear, top is connected with stock by bearing, so that all there is support ground on the top of whole cleaning device and is connected with stock rotationally with bottom so that total can realize maximum steadiness can rotate while driving.
Accompanying drawing explanation
Fig. 1 is the overall schematic of the tower crane device of the present invention, and wherein, the angle in cross section shows that pivoted frame drives motor and the structure of gear position;
Fig. 2 is the tower crane device cross-sectional schematic in the angular position illustrating cleaning device of Fig. 1.
Fig. 3 is the structural representation of elliptical section.
Detailed description of the invention
Below in conjunction with Fig. 1-3, the present invention is described in detail.
Tower crane device according to embodiment, the stock 22 including main tower 21, being set on main tower 21 top, the toothed disc 24 and the pivoted frame 27 of toothed disc 24 rotatable engagement and the pivoted arm 26 that be connected fixing with pivoted frame 27 that are fixedly mounted on stock 22 top, being fixedly installed rotational drive motor 28 on described pivoted frame 27, described rotational drive motor 28 drives described pivoted frame 27 and pivoted arm 26 to rotate by being secured to the little gear 29 and described the engaging of toothed disc 24 that connect.
Alternatively, the bottom of described pivoted frame 27 is provided with the major axis portion 23 downwardly extended and is inserted in described stock 22 with the endoporus through described toothed disc 24.
Alternatively, the top in described major axis portion 23 is connected with toothed disc 24 by bearing 25.
In an embodiment, described pivoted frame 27 being provided be diametrically opposed to one another two toothed disc cleaning devices 31 at described toothed disc 24, each described toothed disc cleaning device 31 the most all includes the portion of being slidably installed 314, cleaning enforcement division 313 and radial drive portion;The described portion 314 that is slidably installed coordinates with the chute in described pivoted frame 27 base plate with radially sliding, the inner side of described cleaning enforcement division 313 is provided with brush device 311 and performs cleaning function to engage with the periphery of toothed disc 24, it is rotatably mounted with roller 312 in described radial drive portion
Described tower crane device also includes cleaning device sliding driving device 33, described cleaning device sliding driving device 33 includes the elliptical section 35 on top and the gear ring portion 32 of bottom, described gear ring portion 32 engages with driving internal gear 39, described elliptical section 35 is installed in rotation on stock 22 by the bearing 34 at endoporus, and the generally oval shape of its peripheral shape, elliptoid periphery is for engaging with described roller 312, thus said two toothed disc cleaning device 31 can be driven to radially slide when described elliptical section is driven in rotation.
In an embodiment, described driving internal gear 39 is driven motor 30 to drive by the slip being arranged on described stock 22.
In an embodiment, described elliptoid periphery is provided with groove 351 at the end points position of oval major axis and short axle, described groove 351 for engaging with location with described roller 312, so that: when described slip drives motor 30 power-off and described rotational drive motor 28 to run, described cleaning device sliding driving device 33 can rotate with described pivoted frame 27, and when described slip drives motor 30 to run and during described rotational drive motor 28 power-off, and described cleaning device sliding driving device 33 rotates relative to described pivoted frame 27.
Alternatively, the portion 314 that is slidably installed described in two described toothed disc cleaning devices 31 is all connected with pivoted frame 27 by returning spring 315.
According to another embodiment, the operation method of described tower crane device, wherein, when toothed disc 24 is cleaned by needs, groove 351 at the short axle of described elliptical section 35 is engaged, so that described brush device 311 engages the periphery of described toothed disc 24, afterwards with described roller 312, described pivoted frame 27 is come back rotation, thus described toothed disc 24 is cleaned;At the end of cleaning so that the groove 351 at the major axis of described elliptical section 35 engages with described roller 312, so that described brush device 311 disengaging and the contacting of described toothed disc 24.
Alternatively, wherein, while described toothed disc to be cleaned, spraying cleaning liquid is gone back in the rotation of described pivoted frame.
Alternatively, wherein, described cleaning solution is organic solvent.