CN103663142B - Tail sliding mechanism and translation tail sliding hoisting method - Google Patents

Abstract

The utility model provides a swift current tail mechanism for cooperating the owner to hang the mechanism and carry out swift current tail hoist and mount to the thing of being hoisted, swift current tail mechanism includes a swift current tail frame, wherein, swift current tail mechanism still includes a support of sliding end row and one drags the swift current system, slide support end row locate swift current tail frame below, swift current tail frame and the support of sliding end row sliding fit, drag the swift current system and include one drag swift current device, drag swift current device one end be equipped with connect by the swift current cable of dragging of hoist and mount thing, a set of counterweight is connected to the other end, under the operating condition, drag swift current system and swift current tail frame and the cooperation of owner and hang the mechanism and carry out swift current tail hoist and mount to the thing of being hoisted. The use of the dragging system realizes the stress conversion in the hoisting process of the tail of the scraper-trough conveyer in a simple and efficient mode, and greatly reduces the shaking of the hoisted object when the hoisted object is lifted to the vertical state from the inclined state. The tail sliding mechanism and the translation tail sliding hoisting method provided by the invention have the advantages of low cost, good safety performance, convenience in implementation, effective shortening of the construction period and improvement of the working efficiency.

Description

Tail sliding mechanism and hoisting method of sliding tail in translation

technical field

The invention relates to the technical field of hoisting, in particular to a tail-sliding mechanism and a translational-sliding tail hoisting method.

Background technique

At present, the hoisting and tailing of extra-large equipment are mostly carried out by crawler cranes and tail row sliding. There are many disadvantages in the above existing technologies. The tail of the crawler crane slips, the disassembly and assembly of the crawler crane takes a long time, and the floor area is large, resulting in a long construction period for the entire hoisting, high costs, and high risk factors; the tail row slips and slips, requiring the laying of tracks To achieve movement, the auxiliary equipment and manpower input are large, the operation is complicated and the preparation period is long. The tail row needs to bear almost all the weight of the equipment. to a larger shaking impact.

To sum up, on the basis of effectively reducing the impact of shaking, it has become a major technical problem to be solved urgently in this industry to further propose a tail-slip hoisting equipment with simple structure and easy operation, thereby reducing costs and shortening the construction period.

Contents of the invention

The invention aims to solve the technical problems of complex structure and cumbersome operation in the existing tail-slip hoisting technology.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

The present invention proposes a tail-sliding mechanism, which is used to cooperate with the main hoisting mechanism to carry out the tail-sliding hoisting of the hoisted object. The main hoisting mechanism includes a main hanger leg frame, and the main hanger leg frame is at least vertically connected by a plurality of standard sections As a result, the tail-sliding mechanism includes a tail-sliding frame, wherein the tail-sliding mechanism also includes a bottom row of sliding supports and a dragging system, and the bottom row of sliding supports is arranged under the tail-sliding frame. The tail frame is slidably matched with the bottom row of the sliding support. The hauling system includes a hauling device. One end of the hauling device is provided with a hauling cable connected to the object to be hoisted, and the other end is connected to a set of counterweights. , in the working state, the dragging system and the tail frame cooperate with the main hoist mechanism to hoist the object to be hoisted.

According to an embodiment of the present invention, the tail frame is a gantry structure, the tail frame includes a main beam, a tail leg frame is provided on both sides of the main beam, and a lifting device is provided on the main beam, The lower part of the lifting device is provided with a tail-slip spreader.

According to another embodiment, the upper ends of the two tail-sliding leg frames are respectively provided with a top joint, and the upper ends of the top joints are each provided with a connecting support, and the two tail-sliding leg frames are respectively connected to the main beam through the two connecting supports. connect.

According to another embodiment, the lower ends of the two sliding tail leg frames are respectively provided with a sliding base, and the sliding base is slidingly matched with the bottom row of the sliding support.

According to another embodiment, a connecting rod connecting the two tail-swinging leg frames is provided between them.

According to another embodiment, the main body of the tail frame is formed by connecting a plurality of standard joints up and down.

The technical solution proposed by the present invention in response to the above technical problems also includes proposing a method for hoisting the hoisting tail in translation, using a main hoisting mechanism and the tail sliding mechanism to carry out the tail sliding hoisting of the object to be hoisted, wherein the sliding tail in translation The hoisting method includes the following steps:

Step 1: Connect the upper part of the object to be hoisted with the sling of the main hoisting mechanism, connect the lower part of the object to be hoisted with the sling tail sling, the sling of the main hoisting mechanism and the sling tail The spreader synchronously lifts the objects to be hoisted to the same height;

Step 2: The main hoisting mechanism continues to lift the hoisted object, and the sliding tail frame and the bottom row of the sliding support are slidingly matched to the direction of the main hoisting mechanism. During the relative translation process of the hanging mechanism, the lower part of the object to be hoisted is suspended by the tail-slip spreader and lowered synchronously, so as to realize the hoisting of the object to be hoisted from horizontal to vertical;

Step 3: before the tail sliding mechanism interferes with the object to be hoisted, connect the hauling cable of the hauling system to the lower part of the object to be hoisted, and at the same time carry out counterweighting through the counterweight to achieve The stress conversion of the tailstock;

Step 4: Disconnect the connection between the tail-slip spreader and the object to be hoisted, and continue to cooperate with the main hoisting mechanism and the dragging device for hoisting;

Step 5: The hauling device gradually releases the hauling cable, cooperates with the main hoisting mechanism to continue lifting the object to be lifted to a vertical state, and completes the tail-slip hoisting of the object to be hoisted.

It can be seen from the above technical solution that the advantages and positive effects of the tail-sliding mechanism and translational-sliding tail hoisting method proposed by the present invention are: the use of the dragging and sliding system realizes the force conversion in the process of tail-sliding hoisting in a simple and efficient manner, It greatly reduces the shaking of the hoisted object when it is lifted from an inclined state to a vertical state. The tail sliding mechanism and the translational tail sliding hoisting method proposed by the present invention have low cost, good safety performance, convenient implementation, effectively shorten the construction period, and improve work efficiency.

Description of drawings

Fig. 1 is the structure schematic diagram of the portal frame of the sliding tail mechanism of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a schematic diagram of Step 1 of the hoisting method of the translational sliding tail of the present invention;

Fig. 4 is a schematic diagram of Step 2 of the hoisting method of the translational sliding tail of the present invention;

Fig. 5 is a schematic diagram of Step 3 of the hoisting method of the translational sliding tail of the present invention;

Fig. 6 is a schematic diagram of Step 4 of the method for hoisting the tail in translation according to the present invention;

Fig. 7 is a schematic diagram of Step 5 of the hoisting method of the horizontal sliding tail of the present invention;

Fig. 8 is a structural schematic diagram of the main suspension mechanism of the tail sliding mechanism of the present invention;

Fig. 9 is a schematic diagram of the structure of the standard section of the tail sliding mechanism of the present invention.

Wherein, the reference signs are as follows:

1. Sliding tail mechanism; 10. Sliding tail frame; 100. Main beam; 101. Sliding tail leg frame; 101a. Standard section; 101b. Top section; 101c. Connecting rod; 102. Connecting support; 11. Lifting device; 12. Sliding tail spreader; 13. Sliding base; 14. Sliding support bottom row; 15. Dragging system; 150. Dragging device; 151. Counterweight; 152. Dragging cable; 2. Hoisted objects ; 3. Main hanging mechanism; 31. Main hanging leg frame.

Detailed ways

Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations therein are illustrative in nature and not intended to limit the present invention. .

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the tail-slip mechanism 1 proposed by the present invention is used to cooperate with the main hoist mechanism 3 to carry out the tail-slip hoisting of the object 2 to be hoisted.

The tail-sliding mechanism 1 proposed by the present invention can optimally distribute the lifting force of the main hoisting mechanism 3 and the tail-sliding frame 10 according to the position of the center of gravity of the hoisted object 2 and the positions of the lifting lugs of the main hoisting mechanism 3 and the tail-sliding frame 10 , to adjust the lifting force relative to the tail frame 10 to the maximum, and further improve the working efficiency of the equipment. In this embodiment, taking the hoisting of a 2,300-ton chemical reactor as an example, the main hoist mechanism 3 with a load of 3,000 tons is selected. become. The tail-sliding mechanism 1 mainly includes a tail-sliding frame 10 with a load of 1600 tons, a sliding support bottom row 14 slidingly matched with the tail-sliding frame 10 and a drag system 15 .

As shown in FIG. 1 , the tail frame 10 is a door-shaped structure, and the tail frame 10 mainly includes a main beam 100 and two tail leg frames 101 respectively arranged on two sides of the main beam 100 . A group of hoisting devices 11 is installed on the main beam 100 , and a set of tail-running spreader 12 is connected to the lower end of the hoisting devices 11 .

As shown in Fig. 1, Fig. 8 and Fig. 9, the main body of the tail frame 10, that is, the tail leg frame 101 is mainly formed by vertically connecting the standard joints 101a constituting the main suspension mechanism 3, and is used for splitting the same equipment. This structure not only improves the standardization of the equipment, but also simplifies the equipment structure, makes the maintenance and replacement of equipment parts more convenient, and reduces the equipment use cost to a certain extent.

As shown in FIG. 1 , a top section 101 b is provided at the upper end of each tail-swing leg frame 101 , and the tail-swing leg frame 101 is connected to the main beam 100 through the top section 101 b. The lower end of the sliding tail leg frame 101 is provided with a sliding base 13 for slidingly matching with the sliding support bottom row 14 . That is, in the working state, the tail frame 10 slides on the sliding support bottom row 14 to realize the function of approaching the main suspension mechanism 3 .

As shown in FIG. 1 , a connecting rod 101c is provided between the two tail-sliding leg frames 101 , and the two ends of the connecting rod 101c are respectively connected to the standard joints 101a at the upper ends of the two tail-sliding leg frames 101 to strengthen the structural strength.

Because in the traditional technology, the cable wind rope, as a part of the tail device, needs to bear part of the weight of the suspended object. In this embodiment, the tail frame 10 with an independent door-shaped structure is used, and the stability calculation and analysis of the tail frame 10 is carried out by analyzing the height and load capacity of the tail frame 10, and there is no need to equip a wind rope The device can meet the requirements of tail-slip hoisting.

In this embodiment, in the working state, the main suspension mechanism 3 and the tail frame 10 are controlled and operated by the same control system, which has good synchronization. Compared with traditionally used equipment such as articulated seat and tail row, the tail-sliding mechanism 1 of this embodiment can skillfully release the rigid rotational energy generated by the asynchrony of the main suspension mechanism 3 and the tail-sliding frame 10 .

As shown in FIG. 2 , the hauling system 15 includes a hauling device 150 , and the hauling device 150 can be a hydraulic jack, a hydraulic pump station, etc., but is not limited thereto. One end of the hauling device 150 is connected with a group of hauling cables 152, and the hauling cables 152 are connected with the object to be hoisted 2 during the hoisting of the tail. The other end of the hauling device 150 is connected with a group of counterweights 151, and the set of counterweights 151 balances the hoisted object 2 under the working state of the hauling device 150, which can be flexibly adjusted, and its quantity and weight are the same. Not unique.

For the use of the drag system 15, after the hoisted object 2 forms a certain angle with the main hoist mechanism 3, that is, when the tail frame 10 is about to interfere with the position of the hoisted object 2, resulting in the inability to continue hoisting, the The hauling device 150 is connected to the lower end of the hoisted object 2 through a hauling cable 152 . The bearing force of the drag system 15 is calculated according to the angle between the object to be hoisted 2 and the main hoist mechanism 3 and the specific position of the lifting lug. The counterweight of this hauling system 15 selects ground anchor device for use, but is not limited to this. At the same time, the maximum stress state of the hauling device 150 is considered for adjustment.

As shown in Fig. 3 to Fig. 7, the hoisting method of translational sliding tail proposed by the present invention utilizes the cooperation of the main hoisting mechanism 3 and the above mentioned sliding tail mechanism 1 to hoist and slide the tail of the object 2 to be hoisted, and mainly includes the following steps:

Step 1: As shown in Figure 3, connect the upper part of the object to be hoisted 2 with the spreader of the main hoisting mechanism 3, connect the lower part of the object to be hoisted 2 with the tail-slipping spreader 12, and the main hoisting mechanism 3 and the tail-sliding mechanism 1 Simultaneously lift the hoisted object 2 to the same height;

Step 2: As shown in Figure 4, the main hoist mechanism 3 continues to lift the hoisted object 2, and the sliding tail mechanism 1 translates in the direction of the main hoist mechanism 3 through the sliding cooperation between the sliding base 13 and the sliding support bottom row 14, and During the relative translation process of the tail-sliding mechanism 1 and the main hoisting mechanism 3, the tail-sliding spreader 12 hangs the lower part of the hoisted object 2 and lowers synchronously, so as to realize the hoisting of the hoisted object 2 from horizontal to vertical;

Step 3: As shown in Figure 5, before the tail sliding mechanism 1 interferes with the object to be hoisted 2, connect the dragging cable 152 of the dragging system 15 to the lower part of the object to be hoisted 2, and at the same time carry out counterweighting through the counterweight 151, Realize the force conversion with the tail sliding mechanism 1;

Step 4: As shown in Figure 6, disconnect the tail-slip spreader 12 from the object to be hoisted 2, and continue to cooperate with the main hoist mechanism 3 and the dragging device 150 for hoisting;

Step 5: As shown in FIG. 7 , the hauling device 150 gradually releases the hauling cable 152 , cooperates with the main hoist mechanism 3 to continue lifting the object 2 to a vertical state, and completes the tail-slip hoisting of the object 2 .

While this invention has been described with reference to a few exemplary embodiments, it is to be understood that the terms which have been used are illustrative and exemplary, rather than restrictive. Since the invention can be embodied in various forms without departing from its concept or essence, the above-described embodiments are not limited to any of the foregoing details, but should be construed broadly within the spirit and scope of the appended claims. All changes and modifications within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (7)

1. A tail-sliding mechanism (1), used for cooperating with the main crane mechanism (3) to carry out the tail-slip hoisting of the hoisted object (2), the said main crane mechanism (3) comprising the main hanger leg frame (31), the The main hanger frame (31) is at least vertically connected by a plurality of standard joints (101a), and the tail sliding mechanism (1) includes a tail sliding frame (10), characterized in that the tail sliding mechanism (1 )Also includes: The bottom row of sliding support (14) is arranged under the tail frame (10), and the tail frame (10) is slidingly matched with the bottom row of sliding support (14); and The hauling system (15) includes a hauling device (150), one end of the hauling device (150) is provided with a hauling cable (152) connected to the hoisted object (2), and the other end is connected to a set of counterweights (151); In the working state, the drag system (15) and the tail frame (10) cooperate with the main hoist mechanism (3) to hoist the object (2) by tail. 2. The tail sliding mechanism (1) according to claim 1, characterized in that, the tail sliding frame (10) is a gantry structure, and the tail sliding frame (10) comprises a main beam (100), the A tail-slip leg frame (101) is provided on both sides of the main beam (100), a lifting device (11) is provided on the main beam (100), and a tail-sliding spreader (12) is provided at the bottom of the lifting device (11). ). 3. The tail sliding mechanism (1) according to claim 2, characterized in that, the upper ends of the two tail sliding leg frames (101) are respectively provided with a top section (101b), and the upper ends of the top sections (101b) are respectively provided with There is a connecting support (102), and the two tail-running leg frames (101) are respectively connected to the main beam (100) through the two connecting supports (102). 4. The tail-sliding mechanism (1) according to claim 2, characterized in that, the lower ends of the two tail-sliding leg frames (101) are respectively provided with a sliding base (13), and the sliding base (13) and The sliding support bottom row (14) is slidingly fitted. 5. The tail-sliding mechanism (1) according to claim 2, characterized in that, a connecting rod (101c) connecting the two tail-sliding leg frames (101) is provided between them. 6. The tail sliding mechanism (1) according to any one of claims 1 to 5, characterized in that, the main body of the tail sliding frame (10) is formed by connecting a plurality of standard joints (101a) up and down . 7. a kind of sliding tail hoisting method of translation, utilize a main hanger mechanism (3) and the tail sliding mechanism (1) as claimed in claim 1 to carry out the tail sliding hoisting to the object to be hoisted (2), the tail sliding frame ( 10) is a gantry structure, the tail frame (10) includes a main beam (100), and a tail leg frame (101) is respectively provided on both sides of the main beam (100), and on the main beam (100) A hoisting device (11) is provided, and the lower part of the hoisting device (11) is provided with a tail-slip hanger (12), and it is characterized in that the method for hoisting the tail of the translation includes the following steps: Step 1: Connect the upper part of the object to be hoisted (2) to the sling of the main hoisting mechanism (3), and connect the lower part of the object to be hoisted (2) to the sling tail sling (12). The hanger of the main hanger mechanism (3) and the tail hanger (12) synchronously lift the object to be hoisted (2) to the same height; Step 2: The main hoist mechanism (3) continues to lift the hoisted object (2), and the tail frame (10) slides and fits with the sliding support bottom row (14) to the main hoist mechanism ( 3) direction translation, during the relative translation process of the tail-sliding mechanism (1) and the main hoisting mechanism (3), the tail-sliding spreader (12) hangs the lower part of the hoisted object (2) and descends synchronously , realizing the hoisting of the hoisted object (2) from horizontal to vertical; Step 3: before the tail sliding mechanism (1) interferes with the object to be hoisted (2), connect the dragging cable (152) of the dragging system (15) to the lower part of the object to be hoisted (2) Connect, carry out counterweight through described counterweight part (151) simultaneously, realize the stress conversion with described tailstock (10); Step 4: Disconnect the connection between the tail-sliding spreader (12) and the object to be hoisted (2), and continue to cooperate with the main hoisting mechanism (3) and the dragging device (150) for hoisting; Step 5: The hauling device (150) gradually releases the hauling cable (152), cooperates with the main hoisting mechanism (3) to continue lifting the hoisted object (2) to a vertical state, and completes the lifting of the hauling cable (152). The tail-slip hoisting of the object to be hoisted (2).