CN217076762U - Folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects - Google Patents

Abstract

The utility model provides a folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects, which is arranged at the top of a standard section of the tower crane and comprises a base and an upper chassis, wherein a balance arm is fixedly arranged at the rear end of the upper chassis, and a telescopic cargo boom is rotatably arranged above the balance arm; the telescopic crane boom comprises a plurality of large arms with a sleeve structure and a plurality of telescopic oil cylinders; the pipe diameters of the large arms are gradually reduced along the extension direction, and the fixed ends and the extension ends of the telescopic oil cylinders are respectively connected with the two adjacent large arms; the large arm comprises a supporting large arm connected with the front end of the upper chassis, and a roller device for winding a steel wire rope is arranged at the front end of the hoisting large arm in the extending direction; a rotating device is connected between the hoisting large arm and the roller device; set up the flexible arm of hydraulic pressure and apply to the tower machine on, realize playing to rise under the restriction height condition and hoist, the gyro wheel device of cooperation front end realizes accurate hoist and mount simultaneously, is applicable to limit for height places such as hoist and mount in airport periphery and indoor limited high altitude, convenient and practical has stronger popularization meaning.

Description

Folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects

Technical Field

The utility model relates to a tower machine technical field especially relates to a can accurate folding hydraulic telescopic arm high altitude tower machine of hanging thing.

Background

The tower crane is the most common lifting equipment on the construction site, also known as the tower crane, and is used for lifting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by connecting the height of each section (called as a standard section for short) one by one. The tower crane is an indispensable device on a construction site. With the high-speed development of high-rise buildings, the application of tower cranes is more and more extensive, and for tower cranes which are higher and higher in the construction process, the hoisting expansion joint is mostly used for constructing the high-rise buildings; the construction process not only is absorbed in the highest floor building and is built, often support structure spare and the additional member that low height floor need install additional, if the building apparatus of low height floor still adopts the lifting and carrying telescopic joint of tower crane itself to carry, just seems big material usefulness, has taken a large amount of live time of tower crane promptly, makes the operation spare of highly lower again smooth and easy inadequately. In addition, the elevation angle of the tower crane reaches 83 degrees when the tower crane adopts the self-hoisting telescopic joint, so that the safety risk of backward tilting of the telescopic joint of the tower crane is easily caused.

In the prior art, tower cap tower machines, flat-top tower machines and swing arm tower machines are commonly used to carry out the hoist and mount operation of high latitude, but above several tower machine building sites exist the extravagant condition of serious vertical space under the operating mode of height-limiting because of the structural constraint of its work arm itself, and the accurate position that falls of advancing after hoisting to the assigned position simultaneously is difficult to control, so need a new tower machine structure in order to solve defect and not enough among the prior art urgently.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a can accurate folding hydraulic telescopic boom high altitude tower machine of hanging thing applies to the tower machine on through setting up the flexible arm of hydraulic stretching, can realize the length-adjustable of jib loading boom, the support pneumatic cylinder that becomes the width of cloth of angle of elevation is realized in the cooperation simultaneously, the realization plays to rise under the restriction height condition and hoists, the gyro wheel device of cooperation front end realizes accurate hoist and mount simultaneously, be applicable to the airport periphery because of hoist and mount and superelevation roofing hoist and mount limit for height place in aircraft airline limit for height and the indoor limited high altitude, convenience and practicality have stronger popularization meaning.

In order to achieve the purpose, the utility model provides a folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects, which is arranged at the top of a standard section of the tower crane and comprises a base and an upper chassis rotationally arranged on the base, wherein a balance arm is fixedly arranged at the rear end of the upper chassis, and a telescopic cargo boom is rotationally arranged above the balance arm; the telescopic crane boom comprises a plurality of large arms with a sleeve structure and a plurality of telescopic oil cylinders; the pipe diameters of the large arms are gradually reduced along the extension direction, and the fixed ends and the extension ends of the telescopic oil cylinders are respectively connected with the two adjacent large arms; the large arm comprises a supporting large arm connected with the front end of the upper chassis, and a supporting hydraulic cylinder is connected between the supporting large arm and the upper chassis; the foremost end of the large arm far away from the large support arm is a large hoisting arm, and the front end of the large hoisting arm in the extending direction is provided with a roller device for winding a steel wire rope; and a rotating device is connected between the hoisting large arm and the roller device.

Specifically, the method comprises the following steps: every two adjacent that telescopic cylinder connects big arm is two different adjacent big arms, telescopic cylinder's stiff end and extension end respectively with adjacent two the extending direction's of big arm front end fixed connection.

Preferably, the method comprises the following steps: the telescopic oil cylinders are respectively arranged on the top surface, the left side surface and the right side surface of the large arm in a distributed manner; the number of the telescopic oil cylinders arranged on the left side surface and the right side surface is equal.

Specifically, the method comprises the following steps: the front end of the upper chassis, which is far away from the balance arm, is rotatably connected with a supporting hydraulic cylinder, and the telescopic end of the supporting hydraulic cylinder is rotatably connected with one end of the supporting large arm, which is far away from the upper chassis.

Preferably, the method comprises the following steps: the balance arm is provided with a winch, the winch is connected with and wound by a steel wire rope, one end of the steel wire rope extends and is wound on the roller device, and one end of the steel wire rope wound on the roller device is connected with a lifting hook.

Preferably, the method comprises the following steps: the large arm is provided with a plurality of rope winding rollers which are used for winding and supporting the steel wire rope, and the rope winding rollers are respectively arranged on the top surfaces of the large arms.

Specifically, the method comprises the following steps: the base is provided with a gear ring, and a tooth structure of the gear ring is arranged on the inner wall; the upper chassis is slidably mounted on the gear ring, the upper chassis is provided with a rotary motor, an output shaft of the rotary motor is provided with a gear, and the gear is in meshed connection with the gear ring.

Specifically, the method comprises the following steps: the upper chassis is further provided with a cab, and a control terminal is arranged in the cab.

Preferably, the method comprises the following steps: the balance arm is also provided with a balancing weight, a hydraulic station, an electric box and a hydraulic oil tank, wherein the hydraulic station, the electric box and the hydraulic oil tank are electrically connected to the control terminal and controlled by the control terminal.

Preferably, the method comprises the following steps: still be equipped with handheld control end, control terminal still is equipped with wireless transmission assembly, handheld control end pass through wireless transmission assembly with the control end carries out wireless signal connection.

The utility model has the advantages that: compared with the prior art, the folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects, which is provided by the utility model, is arranged at the top of a standard section of the tower crane and comprises a base and an upper chassis rotationally arranged on the base, wherein a balance arm is fixedly arranged at the rear end of the upper chassis, and a telescopic cargo boom is rotationally arranged above the balance arm; the telescopic crane boom comprises a plurality of large arms with a sleeve structure and a plurality of telescopic oil cylinders; the pipe diameters of the large arms are gradually reduced along the extension direction, and the fixed ends and the extension ends of the telescopic oil cylinders are respectively connected with the two adjacent large arms; the large arm comprises a supporting large arm connected with the front end of the upper chassis, and a supporting hydraulic cylinder is connected between the supporting large arm and the upper chassis; the foremost end of the large arm far away from the support large arm is a hoisting large arm, and the front end of the hoisting large arm in the extending direction is provided with a roller device for winding a steel wire rope; a rotating device is connected between the hoisting large arm and the roller device; the telescopic arm extending and retracting through hydraulic stretching is applied to the tower crane, the length of a crane boom can be adjusted, the supporting hydraulic cylinder for realizing elevation amplitude variation is matched simultaneously, lifting and hoisting are realized under the condition of height limitation, the roller device matched with the front end simultaneously realizes accurate hoisting, the hydraulic telescopic tower crane is suitable for height-limiting places such as airplane route height limitation and indoor limited high-altitude hoisting and super high-rise roof hoisting, is convenient and practical, and has strong popularization significance.

Drawings

Fig. 1 is a three-dimensional view of the present invention;

fig. 2 is a right side view of the present invention;

fig. 3 is a cross-sectional view of the inside of the base upper chassis of the present invention.

The main element symbols are as follows:

1. a boom is telescopic; 11. a rope winding roller; 12. a roller device; 13. a hook; 14. a wire rope; 15. a large arm;

2. a telescopic oil cylinder; 21. a fixed end; 22. an extension end;

3. a cab;

4. a balance arm; 41. a hydraulic oil tank; 42. a winch; 43. an electric box; 44. a hydraulic station; 45. a balancing weight;

5. a base;

6. an upper chassis; 61. a ring gear; 62. a gear; 63. a rotary motor;

7. and supporting the hydraulic cylinder.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

In the following description, details of the preferred examples are given to provide a more thorough understanding of the invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In the prior art, a common tower cap tower crane, a flat-top tower crane and a movable arm tower crane are used for hoisting operation in high altitude, but under the working condition of height limitation in the above tower crane construction sites, due to the structural limitation of the working arm of the tower crane construction site, the serious situation of vertical space waste exists, and therefore a new tower crane structure is urgently needed to solve the defects and shortcomings in the prior art.

In order to solve the defects and deficiencies in the prior art, the utility model particularly provides a folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects, please refer to fig. 1-3, which is arranged at the top of a standard section of the tower crane and comprises a base 5 and an upper chassis 6 rotatably arranged on the base 5, wherein a balance arm 4 is fixedly arranged at the rear end of the upper chassis 6, and a telescopic cargo boom 1 is rotatably arranged above the balance arm; the telescopic crane boom 1 comprises a plurality of large arms 15 with a sleeve structure and a plurality of telescopic oil cylinders 2; the pipe diameters of the large arms 15 are gradually reduced along the extension direction, and the fixed ends 21 and the extension ends 22 of the telescopic oil cylinders 2 are respectively connected with the two adjacent large arms 15; the large arm 15 comprises a supporting large arm 15 connected with the front end of the upper chassis 6, the front end of the upper chassis 6 far away from the balance arm 4 is rotatably connected with a supporting hydraulic cylinder 7, and the telescopic end of the supporting hydraulic cylinder 7 is rotatably connected with one end of the supporting large arm 15 far away from the upper chassis 6; the balance arm 4 has the function of effectively reducing the moment caused by the telescopic crane boom 1 at the front end and a heavy object hoisted by the telescopic crane boom 1; the rotary connection between the upper chassis 6 and the base 5 can ensure that the telescopic crane boom 1 can rotate in any direction under the manual control to transfer and hoist heavy objects; the telescopic boom 1 is of a sleeve structure which is sleeved with each other, each sleeve is a large arm 15, the total length of the plurality of large arms 15 after being extended is the total length of the telescopic boom 1, the plurality of large arms 15 are controlled to be telescopic through the telescopic oil cylinder 2, the single telescopic oil cylinder 2 can only control the telescopic movement of one large arm 15 connected with the single telescopic oil cylinder, and the telescopic movement of the large arm 15 connected with the extending end 22 is preferably controlled; the supporting large arm 15 connected with the front end of the upper chassis 6 is the thickest large arm 15 and plays a role in supporting and weighing the whole telescopic crane boom 1, and all the large arms 15 shrink into the inner cavity of the supporting large arm 15; the supporting hydraulic cylinder 7 is used for lifting the supporting large arm 15 so as to lift the whole telescopic boom 1, and the connecting point of the supporting hydraulic cylinder 7 and the upper chassis 6 and the connecting point of the telescopic boom 1 cannot be the same connecting point and need to be separated by a certain distance, and are preferably arranged on two sides of the upper chassis 6, which are far away from each other; when the supporting hydraulic cylinder 7 is lifted, a triangular lifting structure is formed between the supporting hydraulic cylinder and the telescopic boom 1 and between the supporting hydraulic cylinder and the upper chassis 6, and meanwhile, certain stability is achieved.

Preferably, two supporting hydraulic cylinders 7 are provided for simultaneously lifting the telescopic boom 1.

Preferably, the top of the upper chassis 6 is provided with a right-angled triangle bracket, a right-angled edge of the right-angled triangle bracket is welded to the top of the upper chassis 6, the balance arm 4 is fixedly mounted on the other right-angled edge, the telescopic crane boom 1 is rotatably connected with the included angle position of the other right-angled edge and the inclined edge, and the support hydraulic cylinder 7 is rotatably connected with the included angle position of the right-angled edge and the inclined edge.

In the present embodiment, mention is made of: two adjacent big arms 15 that every flexible hydro-cylinder 2 is connected are two adjacent big arms 15 not the same, can have effectively to avoid repeatedly stretching out and drawing back the same big arm 15 between the different flexible hydro-cylinders 2 like this, reach the effect of the single big arm 15 of a flexible hydro-cylinder 2 flexible.

In a preferred embodiment, mention is made of: the fixed end 21 and the extending end 22 of the telescopic oil cylinder 2 are respectively and fixedly connected with the front ends of the two adjacent large arms 15 in the extending direction; the front end of the large arm 15 is connected, because the large arm 15 contracts, the telescopic oil cylinder 2 fixed on the large arm 15 can contract along with the large arm 15, the front end of the large arm 15 can not contract into the upper large arm 15, and the arrangement can avoid the interference between the telescopic oil cylinder 2 and the upper large arm 15.

Preferably, the telescopic oil cylinders 2 are arranged in a staggered mode, and the telescopic positions cannot be overlapped.

Preferably, a cylinder mounting portion is extended outward from the front end of the boom 15, and the telescopic cylinder 2 has a certain gap from the boom 15 when mounted on the cylinder mounting portion.

In a preferred embodiment, mention is made of: the plurality of telescopic oil cylinders 2 are respectively arranged on the top surface, the left side surface and the right side surface of the large arm 15; the number of the telescopic oil cylinders 2 arranged on the left side surface and the right side surface is equal; the telescopic oil cylinders 2 are respectively arranged on different surfaces, so that the weight of the telescopic oil cylinders 2 can be effectively and evenly distributed, and similarly, the same quantity of the telescopic oil cylinders 2 on the left side surface and the right side surface is used for balancing the weight of the telescopic oil cylinders 2 on the two sides of the telescopic boom 1, so that the phenomenon that the telescopic boom tilts because of uneven weight is avoided.

Preferably, the number of the large arms 15 of the telescopic crane boom 1 is 11, the total length is 30m, the number of the correspondingly arranged telescopic oil cylinders 2 is 10, the top surface is provided with 4, and the left side surface and the right side surface are respectively provided with 3.

In the present embodiment, mention is made of: the foremost end of the large arm 15 far away from the supporting large arm 15 is a hoisting large arm 15, and the front end of the hoisting large arm 15 in the extending direction is provided with a roller device 12 for winding a steel wire rope 14; the hoisting big arm 15 is arranged at the foremost end of the telescopic crane boom 1 and used for hoisting heavy objects, and the arranged roller device 12 can reduce the friction force of the steel wire rope 14 during hoisting, so that a rolling hoisting structure is formed.

Preferably, the roller device 12 is divided into two rollers, and the wire rope 14 is wound around the two rollers and then connected to the hoisting device.

In a preferred embodiment, mention is made of: the balance arm 4 is provided with a winch 42, the winch 42 is connected with and wound with a steel wire rope 14, one end of the steel wire rope 14 extends and is wound on the roller device 12, one end of the steel wire rope 14 wound on the roller device 12 is connected with a lifting hook 13, the winch 42 is used for controlling the steel wire rope 14 to stretch, and the lifting hook 13 is used for lifting heavy objects.

Preferably, when the large arm is lifted to a large elevation angle, the two rollers of the roller device can avoid the problem that the steel wire rope is broken due to friction with the large arm and other mechanisms below the large arm.

Preferably, hoist big arm with be connected with rotating device between the gyro wheel device, rotating device is including rotating the motor, rotate the motor and pass through base fixed mounting in the foremost of the big arm of hoist and mount, with the output shaft who rotates the motor to gyro wheel device's intermediate position, the both sides of output shaft are located to gyro wheel device's two gyro wheels, so set up, when hoist and mount thing hoist to assigned position, need carry out last fine setting to the position of hoist and mount, the direct stroke that uses big arm or support hydraulic cylinder to adjust and can lead to the adjustment is too big, can't realize slight adjustment, so through rotating device rotation gyro wheel device, gyro wheel device can realize vertical direction and horizontal direction's bidirectional adjustment when rotating, and the rotation range is little, can carry out slight adjustment.

Preferably, the control terminal is further provided with a rotating device control subsystem, and the rotating device control subsystem can control and finely adjust the rotating device according to final fine adjustment after completing main hoisting, so that hoisting precision is improved.

Preferably, the winding engine 42 is connected with a control terminal of the cab 3 and is controlled by a person to unwind and wind.

In a preferred embodiment, mention is made of: the large arm 15 is provided with a plurality of rope winding rollers 11 for winding and supporting the steel wire rope 14, and the rope winding rollers 11 are respectively arranged on the top surfaces of different large arms 15; the rope winding roller 11 is mainly used to wind and support the wire rope 14.

Preferably, there are 4 winding rollers 11 winding and supporting the wire rope 14.

In the present embodiment, mention is made of: the base 5 is provided with a gear ring 61, and a tooth structure of the gear ring 61 is arranged on the inner wall; the upper chassis 6 is slidably mounted on the gear ring 61, the upper chassis 6 is provided with a rotary motor 63, an output shaft of the rotary motor 63 is provided with a gear 62, and the gear 62 is meshed with the gear ring 61; preferably, the rotary motor 63 is connected with a control terminal, and is controlled by the control terminal, the rotation of the gear 62 is caused by the operation of the rotary motor 63, and the rotation of the gear 62 brings the rotation of the upper chassis 6, so as to achieve the effect of controlling the rotation of the upper chassis 6 by human control, thereby controlling the rotation of the telescopic boom 1.

Preferably, two sets of rotary motors 63 are provided, and the rotary motors are hydraulically controlled.

In the present embodiment, mention is made of: the upper chassis 6 is also provided with a cab 3, and a control terminal is arranged in the cab 3; the cab 3 is used for an engineer to control the whole tower crane through a control terminal.

Preferably, still be equipped with handheld control end, control terminal still is equipped with wireless transmission assembly, and handheld control end carries out radio signal through wireless transmission assembly and control end and is connected, carries out long-range wireless control, convenient and practical.

Preferably, the handheld device is used for an operator to use after leaving the cab, can send control quality to a control terminal in the cab in a remote mode, and can control the tower crane in the same way.

In a preferred embodiment, mention is made of: the balance arm 4 is also provided with a balancing weight 45, a hydraulic station 44, an electric box 43 and a hydraulic oil tank 41, and the hydraulic station 44, the electric box 43 and the hydraulic oil tank 41 are all electrically connected to a control terminal and controlled by the control terminal; the hydraulic station 44 and the hydraulic oil tank 41 receive control signals from a control terminal to hydraulically control the telescopic oil cylinder 2 and the support hydraulic cylinder 7; the power station is used for power supply of the whole tower crane; the weight 45 is used to balance the arm 4 to increase weight to reduce moment.

The utility model has the advantages that:

the telescopic arm extending and retracting through hydraulic stretching is applied to the tower crane, the length of a crane boom can be adjusted, the supporting hydraulic cylinder for realizing elevation amplitude variation is matched simultaneously, lifting and hoisting are realized under the condition of height limitation, the roller device matched with the front end simultaneously realizes accurate hoisting, the hydraulic telescopic tower crane is suitable for height-limiting places such as airplane route height limitation and indoor limited high-altitude hoisting and super high-rise roof hoisting, is convenient and practical, and has strong popularization significance.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims (10)

1. A folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects is mounted at the top of a standard section of a tower crane and is characterized by comprising a base and an upper chassis rotatably mounted on the base, wherein a balance arm is fixedly mounted at the rear end of the upper chassis, and a telescopic cargo boom is rotatably mounted above the balance arm; the telescopic crane boom comprises a plurality of large arms with a sleeve structure and a plurality of telescopic oil cylinders; the pipe diameters of the large arms are gradually reduced along the extension direction, and the fixed ends and the extension ends of the telescopic oil cylinders are respectively connected with the two adjacent large arms; the large arm comprises a supporting large arm connected with the front end of the upper chassis, and a supporting hydraulic cylinder is connected between the supporting large arm and the upper chassis; the foremost end of the large arm far away from the large support arm is a large hoisting arm, and the front end of the large hoisting arm in the extending direction is provided with a roller device for winding a steel wire rope; and a rotating device is connected between the hoisting large arm and the roller device.

2. The high-altitude tower crane with the folding hydraulic telescopic arms capable of accurately lifting objects as claimed in claim 1, wherein each two adjacent large arms connected with the telescopic oil cylinder are two different adjacent large arms, and the fixed end and the extending end of each telescopic oil cylinder are respectively fixedly connected with the front ends of the two adjacent large arms in the extending direction.

3. The folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects according to claim 1, wherein a plurality of telescopic oil cylinders are respectively and fixedly arranged on the top surface, the left side surface and the right side surface of the large arm; the number of the telescopic oil cylinders arranged on the left side surface and the right side surface is equal.

4. The high-altitude tower crane with the folding hydraulic telescopic arm capable of accurately lifting objects is characterized in that the front end, far away from the balance arm, of the upper chassis is rotatably connected with a supporting hydraulic cylinder, and the telescopic end of the supporting hydraulic cylinder is rotatably connected with one end, far away from the upper chassis, of the supporting large arm.

5. The high-altitude tower crane with the folding hydraulic telescopic arm capable of accurately lifting objects as claimed in claim 4, wherein the balance arm is provided with a winch, the winch is connected with and wound with a steel wire rope, one end of the steel wire rope extends and winds onto the roller device, and one end of the steel wire rope winds onto the roller device and is connected with a lifting hook.

6. The high-altitude tower crane with the folding hydraulic telescopic arm capable of accurately lifting objects is characterized in that a plurality of rope winding rollers for winding and supporting steel wire ropes are arranged on the large arm and are respectively arranged on the top surfaces of the different large arms.

7. The folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects is characterized in that the base is provided with a gear ring, and a tooth structure of the gear ring is arranged on the inner wall; the upper chassis is slidably mounted on the gear ring, the upper chassis is provided with a rotary motor, an output shaft of the rotary motor is provided with a gear, and the gear is in meshed connection with the gear ring.

8. The folding hydraulic telescopic arm high-altitude tower crane capable of accurately lifting objects is characterized in that a cab is further mounted on the upper chassis, and a control terminal is mounted in the cab.

9. The high-altitude tower crane with the folding hydraulic telescopic arm capable of accurately lifting objects as claimed in claim 8, wherein the balance arm is further provided with a balancing weight, a hydraulic station, an electric box and a hydraulic oil tank, and the hydraulic station, the electric box and the hydraulic oil tank are electrically connected to the control terminal and controlled by the control terminal.

10. The high-altitude tower crane with the folding hydraulic telescopic arm capable of accurately lifting objects is characterized by further comprising a handheld control end, wherein the control terminal is further provided with a wireless transmission assembly, and the handheld control end is in wireless signal connection with the control end through the wireless transmission assembly.

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