CN115196513A - A lower rotary multifunctional crane - Google Patents

Abstract

The invention discloses a lower slewing type multifunctional crane, comprising a base, a slewing mechanism, a boom mechanism and a high-altitude working mechanism, wherein the slewing mechanism is arranged on the base; the boom mechanism includes a lifting part and a folding part , the lifting part is connected with the slewing mechanism, and the folding part is connected with the lifting part, so that the boom mechanism can be switched between the lifting and hoisting state and the aerial work state; the aerial work mechanism is set by setting The leveling mechanism is connected with the boom mechanism, so that the boom mechanism is in a high-altitude working state. The invention realizes the lifting and large-angle luffing of the upper boom, improves the flexibility and working range of the boom, and can better match the high-altitude operation requirements of the equipment. The high obstacle avoidance performance can be applied to the needs of low-rise buildings or limited space and crowded venues.

Description

A lower rotary multifunctional crane

technical field

The invention relates to the technical field of construction machinery and equipment, in particular to a lower rotary multifunctional crane.

Background technique

In engineering construction or construction sites, the construction conditions and operating environment are complex. In most construction stage operating environments, there are many components or building materials hoisting operations and auxiliary aerial work requirements. It is difficult to fully cover or achieve on-site tower crane or hoisting hoisting resources. Timely response has led to the replacement of most light-load and sporadic operations on site by manual assistance, resulting in an increase in the labor intensity of construction workers; at the same time, the complex on-site environmental conditions have made construction extremely inconvenient, and also determined that some lifting and high-altitude operations must be carried out. It is completed by manpower on-site, which has low work efficiency and safety risks, and the existing crane does not have the function of aerial work and does not have the possibility of expanding the function of aerial work.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to solve the above-mentioned technical problems to a certain extent, and propose a lower-rotating multifunctional crane.

The above-mentioned problems to be solved by this invention are realized by the following technical solutions:

A lower slewing type multifunctional crane is proposed, which includes a base, a slewing mechanism, a boom mechanism and an aerial work mechanism. The base stands on the ground; the slewing mechanism is arranged on the base; the The boom mechanism includes a lifting part and a folding part, the lifting part is connected with the slewing mechanism, so that the rotation mechanism drives the boom mechanism to rotate, and the folding part is connected with the lifting part, so that the boom mechanism is in Converting between the lifting and hoisting state and the high-altitude working state; the high-altitude working mechanism is connected with the boom mechanism through the provided leveling mechanism, so that the boom mechanism is in the high-altitude working state.

Preferably, a center body is provided around the base, and a swinging leg is movably connected to one end of the center body away from the base. They are connected by a first connecting rod.

Preferably, an adjusting member for adjusting the working height of the base is movably connected on the foot plate.

Preferably, the slewing mechanism includes a turntable and a slewing bearing, the slewing support is fixed on the base, the turntable is rotatably connected to the slewing bearing, and the turntable is provided with a counterweight and an electric control device, The electronic control device is electrically connected with the turntable; the lift portion is fixedly connected with the turntable, and the lift portion and the counterweight are connected by a provided pull rod.

Preferably, the lifting part includes a fixed column and a movable column, the fixed column is fixedly connected to the turntable, the movable column is movably assembled on the fixed column, and the movable column is provided with a connecting seat, so The folding portion is fixedly assembled on the connecting seat.

Preferably, the folding part includes a folding arm, a folding arm luffing drive device, a telescopic main arm and a telescopic main arm luffing drive device, and one end of the folding arm and the telescopic main arm luffing drive device is respectively connected to the The telescopic main arm is hinged, the other ends of the folding arm and the luffing drive device of the telescopic main arm are hinged with the connecting seat respectively, one end of the luffing drive device of the folding arm is hinged with the folding arm, and the folding The other end of the arm luffing drive device is hinged with the connecting seat.

Preferably, in the hoisting and hoisting state, a hoisting hoist is provided on the telescopic main arm, and a hook is connected to the end of the hoisting hoist extending out of the telescopic main arm.

Preferably, the leveling mechanism includes a forearm, a leveling drive device, a crank and a swing arm; the forearm is connected to the foldable part in the high-altitude working state, and the forearm is away from the part of the folded part It is hinged with the swing arm, and the aerial work mechanism is fixedly connected with the swing arm; the crank is hinged with the small arm and the leveling drive device, respectively, and the crank is connected with the swing through the second connecting rod. The arm is hinged, and the other end of the leveling drive device is hinged with the small arm, so that the leveling drive device drives the crank, and the swing arm drives the aerial work mechanism to move.

Preferably, the aerial work mechanism includes a bracket and a working bucket, the working bucket is placed on the bracket, the bracket is provided with a flange plate and a hanging lug, and the flange plate and the hanging lug are connected to the bracket through the flange plate and the hanging lug. The swing arm is fixedly connected.

Compared with the prior art, the above-mentioned technical solution provided by the application has the following advantages:

This equipment combines the boom mechanism and the aerial work mechanism, and by matching the boom mechanism for aerial work, the boom mechanism can be converted between the lifting and hoisting state and the high-altitude operation state; the boom mechanism is the lifting part and the folding part. Combined, the lifting part adjusts the working position vertically, and the folding part adjusts the working position horizontally and angularly, which improves the flexibility of the boom, reduces the space occupation of the equipment, facilitates the on-site erection of the equipment, and realizes the lifting and large angle of the upper boom. Luffing, improving the flexibility and working range of the boom, and can better match the high-altitude operation requirements of the equipment, and at the same time realize the rapid deployment and folding of the boom mechanism, improve the obstacle avoidance performance of the boom, and can be suitable for low-rise buildings or Space constraints and crowded venues.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

Fig. 1 is the assembly drawing of the crane under the working condition at height of the present invention;

Fig. 2 is the assembly drawing of the hoisting machine under the hoisting and hoisting state of the present invention;

Fig. 3 is the assembly drawing of the base in the present invention;

Fig. 4 is the assembly drawing of the inclination angle of the folding part under the working state of the present invention;

Fig. 5 is the assembly drawing of the horizontal position of the folding part in the working state of the present invention;

Fig. 6 is the assembly drawing of the inclination angle of the folding part under the lifting and hoisting state of the present invention;

Fig. 7 is the assembly drawing of the horizontal position of the folding part under the lifting and hoisting state of the present invention;

Figure 8 is an assembled view of the levelling mechanism of the present invention.

Description of reference numbers:

1-base; 2-slewing mechanism; 201-turntable; 202-slewing bearing; 203-counterweight; 204-tie rod; 5-lifting part; 501-fixed column; 502-movable column; 503-connecting seat; 6-folding part; 601-folding arm; 602-folding arm luffing drive device; 603- telescopic main arm; 604- telescopic main arm Luffing drive device; 7-leveling mechanism; 701-small arm; 702-leveling drive device; 703-crank; 704-swing arm; 705-second connecting rod; 8-center body; 9-swing outrigger; 10-foot plate; 11-first connecting rod; 12-adjustment piece; 13-hoisting winch; 14-hook; 15-flange plate; 16-hanging lug.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain the relationship between various components in a specific posture If the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, if "and/or" or "and/or" appears in the whole text, its meaning includes three parallel schemes, taking "A and/or B" as an example, including scheme A, or scheme B, or scheme A and A scheme that satisfies both B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

As shown in FIG. 1, the present invention proposes a lower rotary multifunctional crane, which includes a base 1, a slewing mechanism 2, a boom mechanism 3 and an aerial work mechanism 4, and the base 1 stands on the ground. ; The slewing mechanism 2 is provided on the base 1; the boom mechanism 3 includes a lifting part 5 and a folding part 6, and the lifting part 5 is connected with the slewing mechanism 2, so that the slewing mechanism 2 drives the arm The jib mechanism 3 is rotated, and the folding part 6 is connected with the lifting part 5, so that the jib mechanism 3 can be switched between the lifting and hoisting state and the aerial working state; the aerial working mechanism 4 is arranged through the leveling mechanism 7 is connected to the boom mechanism 3, so that the boom mechanism 3 is in a working state at high altitude.

The equipment combines the boom mechanism 3 and the aerial work mechanism 4, and by matching the boom mechanism 3 for aerial work, the boom mechanism 3 can be converted between the lifting and hoisting state and the high-altitude operation state; the boom mechanism 3 is a lifting and lowering state. The lifting part 5 is combined with the folding part 6, the lifting part 5 adjusts the working position vertically, and the folding part 6 adjusts the working position horizontally and angularly. The flexibility of the boom reduces the space occupation of the equipment, facilitates the on-site erection of the equipment, realizes the lifting and large-angle luffing of the upper boom, improves the flexibility and working range of the boom, and can better match the high-altitude operation requirements of the equipment. At the same time, the boom mechanism 3 can be rapidly unfolded and folded, and the obstacle avoidance performance of the boom can be improved, which can be applied to the requirements of low-rise buildings or limited space and crowded sites.

In this embodiment, the device realizes two functions of hoisting and aerial work, which can meet the routine operation requirements of hoisting and aerial work during construction projects or construction; In the case of the characteristics of the type aerial work equipment, it can cover the aerial work requirements of 10m working range and 15m lifting height at the same time. In the working state, the combination of the lifting part 5 and the folding part 6 of the boom mechanism 3 can effectively expand the work. The flexibility and luffing angle range of the arm can improve the space obstacle avoidance and flexibility when the upper working arm is deployed, so that the working arm can cross 7m (height) obstacles (vertical steel bars or walls) under a working radius of 7m. ) to ensure the high-altitude operation capability of the aerial work mechanism 4, which can better adapt to the narrow space work place, and when the equipment is in an idle state, the boom mechanism 3 is disturbed, reducing the occupied area of the equipment,

Wherein, as shown in FIG. 3 , the base 1 is provided with a central body 8 facing outward, and one end of the central body 8 away from the base 1 is movably connected with a swinging leg 9 , and the end of the swinging leg 9 is movably connected with a swinging leg 9 . A supporting foot plate 10 is provided at the base, and the two supporting foot plates 10 are connected by a first connecting rod 11. An adjusting member 12 for adjusting the working height of the base 1 is movably connected to the supporting foot plate 10. The adjusting member 12 A screw is used, which is assembled on the foot plate 10 in a threaded manner, and the working height required by the base 1 during use is positioned by the adjusting member 12 .

Wherein, as shown in 2-3, the slewing mechanism 2 includes a turntable 201 and a slewing bearing 202, the slewing bearing 202 is fixed on the base 1, and the turntable 201 is rotatably connected to the slewing bearing 202, The turntable 201 is provided with a counterweight 203 and an electronic control device, the electronic control device is electrically connected to the turntable 201 ; the lifting part 5 is fixedly connected to the turntable 201 , and the lifting part 5 is The counterweights 203 are connected through a set tie rod 204 .

The example of the present invention adopts the design of downward rotation, and the turntable 201 is set close to the ground, so as to facilitate the installation, manipulation and maintenance of the power unit and the electronic control system, and reduce the safety risk of the installation of the counterweight 203 and the falling objects. It is worth noting that the equipment is also It can be designed in an up-turning way, the counterweight 203 is located at the tail of the upper turntable 201, reducing the cross-sectional size of the vertical lifting column or luffing arm, and the base 1 can also be a mobile or self-propelled base 1, such as wheeled or crawler Type chassis, improve the flexibility of the equipment and the convenience of transition, and meet the working conditions of the equipment's high-altitude operation function.

As shown in FIGS. 2-7 , the lifting part 5 includes a fixed column 501 and a movable column 502 , the fixed column 501 is fixedly connected with the turntable 201 , and the movable column 502 is movably assembled on the fixed column On 501 , a connecting seat 503 is provided on the movable upright column 502 , and the folding portion 6 is fixedly assembled on the connecting seat 503 .

The folding part 6 includes a folding arm 601, a folding arm luffing drive device 602, a telescopic main arm 603 and a telescopic main arm luffing driving device 604, and one end of the folding arm 601 and the telescopic main arm luffing driving device 604 They are respectively hinged with the telescopic main arm 603, the other ends of the folding arm 601 and the telescopic main arm luffing driving device 604 are respectively hinged with the connecting base 503, and one end of the folding arm luffing driving device 602 is hinged with the connecting seat 503. The folding arm 601 is hinged, and the other end of the folding arm luffing driving device 602 is hinged with the connecting seat 503 .

In this embodiment, the folding arm luffing driving device 602 and the telescopic main arm luffing driving device 604 are driven by an oil cylinder to realize the unfolding or folding of the folding arm 601 and the telescopic main arm 603 .

Wherein, in the hoisting and hoisting state, the telescopic main arm 503 is provided with a hoisting hoist 13 , and a hook 14 is connected to the end of the hoisting hoist 13 extending out of the telescopic main arm 503 .

Wherein, the leveling mechanism 7 includes a small arm 701, a leveling drive device 702, a crank 703 and a swing arm 704; in the high-altitude working state, the small arm 701 is connected to the folding part 6, and the small arm 701 The part away from the folding part 6 is hinged with the swing arm 704, and the aerial work mechanism 4 is fixedly connected with the swing arm 704. Specifically, the aerial work mechanism 4 includes a bracket 401 and a working bucket 402, so The working bucket 402 is placed on the bracket 401, and the bracket 401 is provided with a flange plate 15 and a hanging lug 16, and is fixedly connected to the swing arm 704 through the flange plate 15 and the hanging lug 16;

Further, as shown in FIG. 8 , the crank 703 is hinged with the small arm 701 and the leveling drive device 702 respectively, and the crank 703 is hinged with the swing arm 704 through a second connecting rod 705 provided, and the adjustment The other end of the leveling drive device 702 is hinged with the small arm 701, so that the leveling drive device 702 drives the crank 703, and the swing arm 704 drives the aerial work mechanism 4 to move; The connection of the frame mechanism 3 realizes the ground adaptation of the working bucket 402 and the timely leveling function with the large angle of the boom inclination, and further expands the functional mode of the equipment and the combination of the boom for aerial work. Lifting and high-altitude work requirements in the site.

In this embodiment, the leveling drive device 702 is driven by an oil cylinder, which can be powered by a hydraulic pump station of the whole machine, or an additional electric pump station can be used to provide power alone. The electric pump station can be installed in the working bucket 402 to reduce the hydraulic pressure. Action delay and pressure decay caused by long lines.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, any equivalent structural transformations made by the contents of the description and drawings of the present invention, or direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (9)

1. A lower-rotation type multifunctional crane is characterized by comprising,

the base stands on the ground;

the slewing mechanism is arranged on the base;

the arm support mechanism comprises a lifting part and a folding part, the lifting part is connected with the swing mechanism so that the swing mechanism drives the arm support mechanism to rotate, and the folding part is connected with the lifting part so that the arm support mechanism is switched between a lifting and hoisting state and an aerial work state;

the high-altitude operation mechanism is connected with the arm support mechanism through the arranged leveling mechanism so as to enable the arm support mechanism to be in a high-altitude operation state.

2. The lower-turning multifunctional crane according to claim 1, wherein the base is provided with a central body around the base, the central body is movably connected with a swinging leg at one end far away from the base, the swinging leg is provided with a supporting plate at the end, and the two supporting plates are connected with each other through a first connecting rod.

3. The lower swing type multi-function crane according to claim 2, wherein the leg plate is movably connected with an adjusting member for adjusting the working height of the base.

4. The lower swing type multifunctional crane according to claim 1, wherein the swing mechanism comprises a turntable and a swing support, the swing support is fixedly arranged on the base, the turntable is rotatably connected with the swing support, a counterweight and an electric control device are arranged on the turntable, and the electric control device is electrically connected with the turntable; the lifting part is fixedly connected with the rotary table, and the lifting part is connected with the balance weight through a pull rod.

5. The lower swing type multifunctional crane according to claim 1, wherein the lifting part comprises a fixed column and a movable column, the fixed column is fixedly connected with the turntable, the movable column is movably assembled on the fixed column, a connecting seat is provided on the movable column, and the folding part is fixedly assembled on the connecting seat.

6. The lower-slewing type multifunctional crane according to claim 5, wherein the folding part comprises a folding arm, a folding arm luffing driving device, a telescopic main arm and a telescopic main arm luffing driving device, one end of the folding arm and one end of the telescopic main arm luffing driving device are respectively hinged with the telescopic main arm, the other end of the folding arm and the other end of the telescopic main arm luffing driving device are respectively hinged with the connecting seat, one end of the folding arm luffing driving device is hinged with the folding arm, and the other end of the folding arm luffing driving device is hinged with the connecting seat.

7. The lower-turning multifunctional crane according to claim 1, wherein a lifting winch is arranged on the telescopic main arm in a lifting and hoisting state, and a lifting hook is connected to an end of the lifting winch extending out of the telescopic main arm.

8. The lower swing type multifunctional crane according to claim 1, wherein the leveling mechanism comprises a small arm, a leveling driving device, a crank and a swing arm; the small arm is connected with the folding part in an overhead working state, the part of the small arm far away from the folding part is hinged with the swing arm, and the overhead working mechanism is fixedly connected with the swing arm; the crank is respectively hinged with the small arm and the leveling driving device, the crank is hinged with the swing arm through a second connecting rod, and the other end of the leveling driving device is hinged with the small arm so that the leveling driving device drives the crank and the swing arm drives the aerial work mechanism to move.

9. The lower-rotary-type multifunctional crane according to claim 8, wherein the aerial work mechanism comprises a bracket and a working bucket, the working bucket is arranged on the bracket, and the bracket is provided with a flange plate and a hanging lug and is fixedly connected with the swing arm through the flange plate and the hanging lug.

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