CN201485198U

CN201485198U - Fixed pillar type cantilever crane

Info

Publication number: CN201485198U
Application number: CN2009201615968U
Authority: CN
Inventors: 李云峰; 刘元海
Original assignee: Beris Engineering and Research Corp
Current assignee: Beris Engineering and Research Corp
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-05-26
Anticipated expiration: 2019-08-06

Abstract

The utility model provides a fixed pillar type cantilever crane, comprising an upright pillar, an annular rail, a cantilever, a rotary mechanism and at least one group of turning mechanism, wherein the cantilever consists of a turning arm and a support arm connected at the lower part of the turning arm; the turning arm is connected with the upright pillar through the rotary mechanism; the at least one group of turning mechanism is arranged at the lower end part of the support arm and is contacted with the annular rail arranged on the upright pillar; and the at least one group of turning mechanism comprises a gear motor, a drive gear and a pedal wheel set, and the gear motor drives the pedal wheel set to rotate along the annular rail through the drive gear. The fixed pillar cantilever crane simplifies the rotary mechanism, can ensure that the production activity is not affected when one motor breaks down by adopting the at least one group of turning mechanism and meanwhile, can realize the self-adaption and centering regulation function and increase the bearing capacity of the cantilever.

Description

The fixed column type boom crane

Technical field

The utility model relates to a kind of swing-arm type handling machinery, relates in particular to a kind of fixed column type boom crane.

Background technology

In the mechanization handling appliance, Pillar-fixing Type Slewing Crane has obtained widespread use at present, mainly is applicable on the various manufacturing lines such as metallurgical rolling line and between reconditioning etc. in the lifting of main equipment.Existing Pillar-fixing Type Slewing Crane has the following disadvantages: 1) the single motor-driven structure of many employings, in case motor damages, directly influence is produced; 2) the revolution drive motor overlaps with revolving structure, and the revolving structure complexity is not easy to maintenance and maintenance, the manufacturing cost height, and it is little that spiral arm hangs load-carrying capacity.

The utility model content

In case the purpose of this utility model is to solve the existing motor of the existing existing single motor-driven structure of Pillar-fixing Type Slewing Crane and damages the shortcoming that just directly influences production and operation.

Another problem that the utility model solved is that revolving structure complexity and spiral arm hang the little shortcoming of load-carrying capacity.

For solving the problems of the technologies described above, the utility model provides a kind of Pillar-fixing Type Slewing Crane, comprise column, the ring rail, cantilever, swing type mechanism and at least one group of mechanism that changes one's profession, described cantilever is made of pivoted arm and the hold-down arm that is connected in described pivoted arm bottom, described pivoted arm is connected with described column by described swing type mechanism, the described at least one group of mechanism that changes one's profession is arranged at described hold-down arm bottom, and contact with the ring rail on being arranged at described column, wherein, the described at least one group of mechanism that changes one's profession comprises reducing motor, transmission gear and step on wheels, described reducing motor drives the described wheels of stepping on by transmission gear and rotates along described ring rail.

Furthermore, the described at least one group of mechanism that changes one's profession is two groups, step on wheels for two of these two groups of mechanisms that change one's profession and be arranged side by side, and separately and described hold-down arm be hinged.

Furthermore, the described wheels of stepping on include two of being symmetricly set in described transmission gear both sides and step on wheel, and described transmission gear and described two step on the wheel engagement and drive these two and step on wheel and rotate along described ring rail.

Furthermore, described swing type mechanism comprises mandrel, self-aligning roller bearing and bearing seat, and described mandrel top is connected with described pivoted arm, and described bearing seat is connected with described column, and described mandrel passes described self-aligning roller bearing and is placed in the described bearing seat.

Furthermore, described swing type mechanism also comprises the self-aligning thrust roller bearing of being located between described self-aligning roller bearing and the described bearing seat, and described mandrel passes described self-aligning roller bearing and self-aligning thrust roller bearing is placed in the described bearing seat.

Adopt fixed column type boom crane provided by the utility model, have following advantage:

(1) adopts two groups of mechanisms that change one's profession, comprise that two pairs are stepped on wheels and double-motor structure, every pair step on wheels separately and hold-down arm be hinged and make its servo-actuated adjustment, can realize self adaptation centering adjustment function, make tread and encircle rail closed contact constantly, not only improved load-carrying capacity, and double-motor can guarantee that another worked on when a motor was out of order, thereby guarantee that activity in production is unaffected.

(2) swing type mechanism only comprises mandrel, self-aligning roller bearing, self-aligning thrust roller bearing and bearing seat, thereby simplifies original revolving structure, has increased load-carrying capacity, and makes things convenient for aligning and maintenance and repair.

Description of drawings

Fig. 1 is the front view of the utility model fixed column type boom crane;

Fig. 2 is an A-A section-drawing among Fig. 1;

Fig. 3 is a B-B section-drawing among Fig. 2;

Fig. 4 is the partial enlarged drawing of the utility model fixed column type boom crane swing type mechanism of marking with circle among Fig. 1.

[primary clustering nomenclature]

101 columns, 102 pivoted arms

103 mechanism's 104 supporting arms of changing one's profession

105 electric blocks, 106 swing type mechanisms

201 mandrels, 202 self-aligning roller bearings

203 self-aligning thrust roller bearings, 204 bearing seats

401 ring rails 402 are stepped on wheel

403 transmission gears, 404 bearing pins

405 reducing motors

The specific embodiment

Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated.

With reference to shown in Figure 1, be the front view of the utility model fixed column type boom crane.As seen from Figure 1, the utility model fixed column type boom crane comprises column 101, ring rail 401, cantilever, swing type mechanism 106 and at least one group of mechanism 103 that changes one's profession, cantilever is made of pivoted arm 102 and the hold-down arm 104 that is connected in pivoted arm 102 bottoms, pivoted arm 102 is connected with column 101 by swing type mechanism 106, this at least one group mechanism 103 that changes one's profession is arranged at hold-down arm 104 bottoms, and contacts with ring rail 401 on being arranged at described column 101.This at least one group mechanism 103 that changes one's profession comprises reducing motor 405, transmission gear 403 and steps on wheels that reducing motor 405 drives the described wheels of stepping on by transmission gear 403 and rotates along ring rail 401.

With reference to Fig. 2 and shown in Figure 3, be respectively A-A and B-B section-drawing among Fig. 1 and Fig. 2.Find out further that by above-mentioned accompanying drawing in this preferred embodiment, this at least one group mechanism 103 that changes one's profession comprises two groups, step on wheels for two of these two groups of mechanisms that change one's profession and be arranged side by side, be connected with hold-down arm 104 separately by bearing pin 404.Step on wheels and hold-down arm 104 preferred connection modes are hinged for these two, adjust function, make tread and ring rail 401 keep closed contacts, improve load-carrying capacity to realize servo-actuated adjustment and self adaptation centering.

And above-mentioned each stepped on wheels and included two of being symmetricly set in transmission gear 403 both sides and step on wheel 402, and transmission gear 403 is stepped on wheel 402 engagements and driven these two and step on wheel 402 along 401 rotations of ring rails with two.

With reference to shown in Figure 4, be the partial enlarged drawing of the utility model fixed column type boom crane swing type mechanism of marking with circle among Fig. 1.As can be seen from this figure, this swing type mechanism comprises mandrel 201, self-aligning roller bearing 202 and bearing seat 204, mandrel 201 tops are connected with pivoted arm 102, and bearing seat can be connected with column 101 by the mode of welding, and mandrel 201 passes self-aligning roller bearing 202 and is placed in the bearing seat 204.This swing type mechanism also comprises the self-aligning thrust roller bearing of being located between self-aligning roller bearing 202 and the bearing seat 204 203, and mandrel 201 also will pass self-aligning thrust roller bearing 203 before passing self-aligning roller bearing 202 and placing in the bearing seat 204 like this.Self-aligning roller bearing 202 and self-aligning thrust roller bearing 203 all possess the aligning function.

Be further detailed below in conjunction with the principle of work of concrete working process to the utility model fixed column type boom crane: when this fixed column type boom crane need rotate at the object of slinging, reducing motor 405 drove by transmission gear 403 and steps on wheels along 401 rotations of ring rail.Step on the rotation drive cantilever rotation of wheel along ring rail 401, this moment, mandrel 201 cooperated with the inner ring of self-aligning roller bearing 202 and self-aligning thrust roller bearing 203, the outer ring of self-aligning roller bearing 202 and self-aligning thrust roller bearing 203 cooperates with bearing seat 204, and mandrel 201 is connected by bolt with flange with pivoted arm 102 has realized that pivoted arm 102 can 360 ° of rotations.Wherein, self-aligning roller bearing 202 main bearing radial forces, self-aligning thrust roller bearing 203 mainly bears axial force, and possesses the aligning function respectively.Two of this two groups of mechanisms that change one's profession step on wheels owing to be arranged side by side, and separately and hold-down arm 104 be hinged.Thereby can realize self adaptation centering adjustment function, and make tread and encircle rail 401 closed contact constantly, improve load-carrying capacity.Another works on simultaneously also can to guarantee to be out of order constantly by a motor, thereby guarantees that activity in production is unaffected.

Need to prove at last; the above only is preferred embodiment of the present utility model; rather than to the qualification of technical solutions of the utility model, any the utility model technical characterictic being equal to of being done replaced or corresponding improvement, still within protection domain of the present utility model.

Claims

1. fixed column type boom crane, comprise column, the ring rail, cantilever, swing type mechanism and at least one group of mechanism that changes one's profession, described cantilever is made of pivoted arm and the hold-down arm that is connected in described pivoted arm bottom, described pivoted arm is connected with described column by described swing type mechanism, the described at least one group of mechanism that changes one's profession is arranged at described hold-down arm bottom, and contact with the ring rail on being arranged at described column, it is characterized in that, the described at least one group of mechanism that changes one's profession comprises reducing motor, transmission gear and step on wheels, described reducing motor drives the described wheels of stepping on by transmission gear and rotates along described ring rail.

2. fixed column type boom crane as claimed in claim 1 is characterized in that, the described at least one group of mechanism that changes one's profession is two groups.

3. fixed column type boom crane as claimed in claim 2 is characterized in that, steps on wheels and is arranged side by side for two of described two groups of mechanisms that change one's profession.

4. fixed column type boom crane as claimed in claim 3 is characterized in that, steps on wheels and is connected with described hold-down arm separately for described two.

5. fixed column type boom crane as claimed in claim 4 is characterized in that, described two connection modes of stepping on wheels and described hold-down arm are hinged.

6. as the arbitrary described fixed column type boom crane of claim 1 to 5, it is characterized in that, the described wheels of stepping on include two of being symmetricly set in described transmission gear both sides and step on wheel, and described transmission gear and described two step on the wheel engagement and drive these two and step on wheel and rotate along described ring rail.

7. fixed column type boom crane as claimed in claim 6, it is characterized in that, described swing type mechanism comprises mandrel, self-aligning roller bearing and bearing seat, described mandrel top is connected with described pivoted arm, described bearing seat is connected with described column, and described mandrel passes described self-aligning roller bearing and is placed in the described bearing seat.

8. fixed column type boom crane as claimed in claim 7, it is characterized in that, described swing type mechanism also comprises the self-aligning thrust roller bearing of being located between described self-aligning roller bearing and the described bearing seat, and described mandrel passes described self-aligning roller bearing and self-aligning thrust roller bearing is placed in the described bearing seat.