CN211769947U - Mounting device for crawler crane - Google Patents

Abstract

The utility model discloses an installation device for a crawler crane, which comprises a crane base, a rotating support mechanism and a driver's cab. The upper and middle part of the crane base is connected with the rotating support mechanism through bolts, and the upper part of the rotating support mechanism is connected with bolts. A bottom mounting plate is connected, and the upper side of the bottom mounting plate is connected with the vehicle body by bolts. The beneficial effect is that: the utility model can detect the support rod 1, the support rod 2, the support rod 3 and the support tension or pressure of the hoisting support in real time through the pulling pressure sensor, and calculate the torque change of each support point, and then obtain this The position of the balance point of the crane is then controlled by the stepper motor to move the counterweight block to counterweight the crane, thereby ensuring that the crane is always operating within a dynamic balance range and improving the safety factor of the operation.

Description

An installation device for a crawler crane

technical field

The utility model relates to the technical field of crawler cranes, in particular to an installation device for a crawler crane.

Background technique

With the continuous improvement of the degree of construction mechanization, crawler cranes play an increasingly important role in engineering construction. Mechanical operations not only improve the lifting capacity of crawler cranes, but also put forward higher requirements for the comfort of the whole machine. The crawler crane is a mobile boom crane equipped with a crawler running device. It consists of metal structures such as boom and turntable, hoisting, rotating, luffing and running mechanisms. The hoisting and luffing mechanisms use reel wound steel ropes. The pick-up device is lifted and lowered and the boom pitch and amplitude are changed through the complex pulley block, and the rotary support mechanism adopts a turntable type support device.

However, during the installation process of the existing crawler cranes, the counterweight blocks are mostly fixed. However, in the actual hoisting process, the balance position of the crane changes dynamically, and the fixed counterweight blocks are difficult to keep up with the time. The changing balance positions match each other, resulting in a certain safety hazard in the hoisting process.

Utility model content

(1) Technical problems to be solved

In order to overcome the shortcomings of the existing technology, an installation device for a crawler crane is proposed, which solves the problem that the counterweight blocks are mostly fixed during the installation process of the existing crawler crane. However, in the actual hoisting process, the crane's The balance position changes dynamically, and it is difficult for the fixed counterweight to match the balance position that changes all the time, resulting in a certain safety hazard in the hoisting process.

(2) Technical solutions

The utility model is realized through the following technical solutions: the utility model proposes an installation device for a crawler crane, which includes a crane base, a rotating support mechanism and a cab, and the upper and middle part of the crane base is connected with the rotating support mechanism through bolts , a bottom mounting plate is connected above the rotating support mechanism by bolts, a vehicle body is connected by bolts on the upper side of the bottom mounting plate, the cab is provided on the upper side of the vehicle body, and the cab is connected to the vehicle body. The vehicle body is connected by bolts.

By adopting the above technical solution, the rotary support mechanism can provide rotary support for the crawler crane, control the hoisting process to perform rotary motion, the vehicle body can carry hoisting appliances or goods, and the cab is used to control the hoisting process.

Further, a support rod 1 is provided above the bottom mounting plate near the vehicle body, a support rod 2 is provided on one side of the support rod 1, a support rod 3 is provided on one side of the support rod 2, and the support rod Three sides of the rod are provided with hoisting supports.

By adopting the above technical solution, the first support rod, the second support rod, the third support rod and the hoisting support are all used to balance the support force in the hoisting process.

Further, the support rod 1, the support rod 2, the support rod 3 and the lower end of the hoisting support are all connected with a hinged support by bolts, and a hinged support is provided between the hinged support and the bottom mounting plate. Pull the pressure sensor.

By adopting the above technical solution, the tension and pressure sensor can detect the supporting rod 1, the supporting rod 2, the supporting rod 3 and the supporting tension or pressure of the hoisting support in real time, and then feed back the data to the controller, The controller performs data arithmetic processing, calculates the torque variation of each support point, and then obtains the position of the balance point of the crane.

Further, the upper ends of the first support rod and the second support rod are connected with a pull rope with the upper end of the hoisting support, and a hook is provided below the pull rope.

By adopting the above technical solution, the hook is used to lift the goods.

Further, a slide rail is provided on one side of the tension pressure sensor above the bottom mounting plate, the number of the slide rails is two, the slide rail and the bottom mounting plate are connected by screws, and the slide rail is above the slide rail. The sliding connection has a slider.

By adopting the above technical solution, the sliding rail and the sliding block provide guidance for the movement of the counterweight.

Further, a lead screw is arranged between the slide rails, one end of the lead screw is rollingly connected with a lead screw support, and the other end of the lead screw is connected with a stepper motor through a coupling, and the stepper motor is connected to the The bottom mounting plate is connected by bolts, a sliding support is connected above the sliding block and the nut by screws, and a counterweight is connected above the sliding support by bolts.

By adopting the above technical solution, the stepper motor is activated to drive the lead screw to rotate, and the lead screw cooperates with the nut to provide power for the movement of the counterweight, which is obtained in combination with the controller. The balance point of the crane is controlled, and the stepper motor is controlled to drive the counterweight block to move, and the crane is counterweighted, thereby ensuring that the crane always operates within a dynamic balance range and improving the safety factor of the operation.

(3) Beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

In order to solve the problem of the existing crawler crane in the installation process, most of the counterweight blocks are fixed, but in the actual hoisting process, the balance position of the crane changes dynamically, and the fixed counterweight block is difficult to match. The constantly changing balance positions match each other, which leads to the problem of certain safety hazards in the hoisting process. The utility model can detect the support rod 1, the support rod 2, the support rod 3 and the support tension or pressure of the hoisting support in real time through the pull pressure sensor. , calculate the torque change of each support point, and then obtain the position of the balance point of the crane, and then control the movement of the counterweight block through the stepper motor to counterweight the crane, thereby ensuring that the crane is always within a dynamic balance range operation, improve the safety factor of the operation.

Description of drawings

1 is a front view of a mounting device for a crawler crane according to the present invention;

Fig. 2 is the main sectional view of the bottom fixing plate part of the installation device for crawler crane according to the present invention;

Fig. 3 is a partial enlarged view of a nut part of an installation device for a crawler crane according to the present invention.

The reference numerals are explained as follows:

1. Crane base; 2. Rotating support mechanism; 3. Bottom mounting plate; 4. Car body; 5. Cab; 6. Support rod one; 7. Support rod two; 8. Pull rope; 9. Support rod three; 10, hoisting support; 11, hook; 12, pull pressure sensor; 13, hinged support; 14, slide rail; 15, lead screw; 16, stepper motor; 17, nut; 18, slider; 19, slide Shift support; 20, counterweight; 21, screw support.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

As shown in Figures 1-3, an installation device for a crawler crane in this embodiment includes a crane base 1, a rotating support mechanism 2 and a cab 5, and a rotating support mechanism is connected to the upper middle of the crane base 1 through bolts 2. A bottom mounting plate 3 is connected to the top of the rotating support mechanism 2 by bolts, and a vehicle body 4 is connected to the upper side of the bottom mounting plate 3 by bolts. The upper side of the vehicle body 4 is provided with a cab 5. Through the bolt connection, the rotary support mechanism 2 can provide rotary support for the crawler crane, control the hoisting process to perform rotary motion, the car body 4 can carry hoisting appliances or goods, and the cab 5 is used to control the hoisting process.

A support rod one 6 is provided above the bottom mounting plate 3 near the vehicle body 4, a support rod two 7 is provided on one side of the support rod one 6, a support rod three 9 is provided on one side of the support rod two 7, and a support rod three 9 is provided on one side. There is a hoisting support 10, a supporting rod 1 6, a supporting rod 2 7, a supporting rod 3 9 and a hoisting support 10 are used to balance the supporting force in the hoisting process.

The supporting rod 1 6 , the supporting rod 2 7 , the supporting rod 3 9 and the lower end of the hoisting support 10 are all connected with a hinged support 13 by bolts, and a tension pressure sensor 12 is arranged between the hinged support 13 and the bottom mounting plate 3 12. It can detect the support tension or pressure of support rod 1 6, support rod 2 7, support rod 3 9 and hoisting support 10 in real time, and then feed back the data to the controller. The controller performs data arithmetic processing and calculates the torque of each support point. Change the situation, and then get the balance point position of the crane.

A pull rope 8 is connected to the upper end of the support rod 1 6 and the support rod 2 7 and the upper end of the hoisting support 10 , and a hook 11 is arranged below the pull rope 8 , and the hook 11 is used for lifting goods.

A slide rail 14 is provided on one side of the pull pressure sensor 12 above the bottom mounting plate 3. The number of the slide rails 14 is two. The slide rail 14 is connected with the bottom mounting plate 3 by screws. Rails 14 and sliders 18 provide guidance for the movement of counterweight 20 .

A lead screw 15 is arranged between the slide rails 14, one end of the lead screw 15 is connected with a lead screw support 21, and the other end of the lead screw 15 is connected with a stepping motor 16 through a coupling, and the stepping motor 16 and the bottom mounting plate 3 pass through Bolted connection, sliding support 19 is connected above the slider 18 and the nut 17 by screws, and a counterweight 20 is connected above the sliding support 19 by bolts. The stepping motor 16 is activated to drive the lead screw 15 to rotate, and the lead screw 15 is connected to the nut. 17 cooperates to provide power for the movement of the counterweight block 20, and then combined with the balance point of the crane obtained by the controller, the stepping motor 16 is controlled to drive the counterweight block 20 to move, and the crane is counterweighted, thereby ensuring that the crane is always Work within a dynamic balance range to improve the safety factor of the operation.

The specific implementation process of this embodiment is as follows: when installing the crawler crane, a tension pressure sensor 12 is installed between the support rod one 6, the support rod two 7, the support rod three 9, the hoisting support 10 and the bottom mounting plate 3, It can detect the support tension or pressure of support rod 1 6, support rod 2 7, support rod 3 9 and hoisting support 10 in real time, and then feed back the data to the controller, and the controller performs data arithmetic processing to calculate the torque change of each support point Then, the position of the balance point of the crane is obtained, and then the stepping motor 16 is controlled to start, driving the lead screw 15 to rotate, and the lead screw 15 cooperates with the nut 17 to provide power for the movement of the counterweight 20, and then combined with the controller to obtain The balance point of the crane is determined, and the stepper motor 16 is controlled to drive the counterweight 20 to move to counterweight the crane, thereby ensuring that the crane always operates within a dynamic balance range and improving the safety factor of the operation.

The above-mentioned embodiments merely describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Under the premise of not departing from the design concept of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention, and the technology claimed by the present invention shall be protected. The content has been fully described in the claims.

Claims (6)

1. An installation device for a crawler crane, characterized in that it comprises a crane base (1), a rotating support mechanism (2) and a driver's cab (5), and the upper middle of the crane base (1) is connected by bolts. The rotating support mechanism (2) is connected with a bottom mounting plate (3) by bolts above the rotating support mechanism (2), and a vehicle body (4) is connected by bolts on the upper side of the bottom mounting plate (3). The driver's cab (5) is provided on the upper side of the vehicle body (4), and the driver's cab (5) is connected with the vehicle body (4) by bolts. 2. An installation device for a crawler crane according to claim 1, characterized in that: a support rod (6) is provided above the bottom mounting plate (3) near the vehicle body (4), One side of the support rod (6) is provided with a support rod two (7), one side of the support rod two (7) is provided with a support rod three (9), and one side of the support rod three (9) is provided with a support rod three (9). Lifting support (10). 3. An installation device for a crawler crane according to claim 2, characterized in that: said support rod one (6), said support rod two (7), said support rod three (9) and The lower ends of the hoisting supports (10) are all connected with hinged supports (13) through bolts, and a tension pressure sensor (12) is arranged between the hinged supports (13) and the bottom mounting plate (3). 4. An installation device for a crawler crane according to claim 3, characterized in that: the upper ends of the first support rod (6) and the second support rod (7) and the upper end of the hoisting support (10) A pull rope (8) is connected, and a hook (11) is arranged below the pull rope (8). 5 . The installation device for a crawler crane according to claim 4 , wherein a slide rail ( 14 ) is provided on one side of the tension pressure sensor ( 12 ) above the bottom mounting plate ( 3 ). 6 . The number of the sliding rails (14) is two, the sliding rails (14) are connected with the bottom mounting plate (3) by screws, and a slider (18) is slidably connected above the sliding rails (14). 6. An installation device for a crawler crane according to claim 5, characterized in that: a lead screw (15) is provided between the slide rails (14), and one end of the lead screw (15) is rollingly connected There is a lead screw support (21), the other end of the lead screw (15) is connected with a stepper motor (16) through a coupling, and the stepper motor (16) and the bottom mounting plate (3) are connected by bolts For connection, a sliding support (19) is connected above the slider (18) and the nut (17) by screws, and a counterweight (20) is connected above the sliding support (19) by bolts.

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