CN201678360U - An equipment hoisting device - Google Patents

Abstract

The utility model relates to a hoist for hoisting equipment, comprising a cross beam which is provided with a lifting eye. The utility model is characterized in that the lifting eye is arranged at the middle part of the cross beam and comprises a lifting eye plate, and the lifting eye plate is provided with a shaft hole. A pin shaft is penetrated through the shaft hole to connect the hoist with a hook pulley component of a crane. The hoist can be directly connected with a crane jib, the hoist cancels a sling for connecting the cross beam with a crane hook used above the cross beam and the crane hook in the prior art, reduces the hoisting height of equipment, therefore reduces the length of the crane jib pole needed in equipment hoisting, fully exerts and increases the rated hoisting capability of the equipment. Meanwhile, the hoist for hoisting equipment also reduces the construction preparation workload before equipment hoisting, reduces the friction between the sling and the equipment lifting eye in equipment hoisting, prevents the sling from abrasion, and is beneficial to hoisting safety.

Description

An equipment hoisting device

technical field

The utility model relates to the field of hoisting and hoisting, in particular to a sling for equipment hoisting.

Background technique

In equipment hoisting, in order to improve the stress conditions of equipment, prevent equipment deformation, and facilitate hoisting, etc., it is generally necessary to set up a lifting beam as an auxiliary tool for equipment hoisting. The hanging beams are the three structural forms listed in the Petrochemical Industry Standard of the People's Republic of China "Construction Technology Standards for Large-scale Equipment Hoisting Engineering" SH/T3515-2003, namely tube-sheet hanging beams, supporting hanging beams and adjustable-length hanging beams. As shown in Figure 1, Figure 2 and Figure 3.

When using the above hanging beam to hoist the equipment, a sling should be installed above the hanging beam to connect with the hook of the crane. Setting the sling above the lifting beam is equivalent to increasing the hoisting height of the hoisted equipment. The higher the hoisting height of the equipment, the larger the diameter of the equipment, and the longer the boom length required for the crane when hoisting the equipment. The rated hoisting capacity of the crane is inversely proportional to the length of the crane arm, that is, the longer the arm length, the smaller the rated hoisting capacity of the crane, and it is not conducive to fully utilizing the hoisting capacity of the crane. Cause the waste of crane hoisting capacity. The schematic diagram of on-site hoisting is shown in Figure 4.

In the prior art, the sling used between the lifting beam and the equipment to be hoisted has a relatively large friction between the lifting lug and the lifting lug of the equipment, which will damage the sling and the lifting lug of the equipment to a certain extent, affecting Lifting safety.

Contents of the invention

The technical problem to be solved by the utility model is to provide a tool for equipment hoisting between a crane and a suspension beam without using hooks and slings in view of the current state of the prior art.

Another technical problem to be solved by the utility model is to provide a tool for equipment hoisting that can greatly reduce the friction damage between the sling and the equipment lug in view of the status quo of the prior art.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is as follows: the hoisting tool for the equipment includes a beam on which lifting lugs are arranged, and is characterized in that the lifting lugs are arranged in the middle of the beam; The lug includes a lug plate, and an axle hole is arranged on the lug plate, and the pin shaft passes through the axle hole to connect the spreader to the hook pulley block assembly of the crane.

The hanger provided by the utility model can cancel the sling and the hook of the crane used to connect the beam and the crane hook used above the beam in the prior art when the equipment is hoisted, and connect the hanger of the utility model with the pin shaft The hook and pulley assembly at the head of the crane arm is directly connected, which reduces the hoisting height of the equipment, thereby reducing the length of the crane arm required for hoisting equipment, and fully exerting and improving the rated hoisting capacity of the crane; at the same time, it can also reduce The construction preparation workload before the equipment hoisting reduces the friction between the sling and the equipment lugs during the equipment hoisting, prevents the sling from being worn, and is conducive to ensuring the safety of hoisting.

In order to make the utility model adaptable to different hook and pulley block assemblies, the shaft holes on the lug plate can be elongated or circular, and the circular shaft holes are multiple and arranged at intervals on the same straight line and On the outside of the lug plate, there is a detachable lug guard plate that can be fixed on the lug plate after being displaced along the shaft hole. matching holes. The pin shaft passes through the hole on the hanger guard plate and the shaft hole on the hanger plate after being limited by the hanger guard plate and is connected to the hook pulley block assembly of the crane.

Preferably, there may be 4 lug plates, which are opposite and symmetrically arranged in the middle of the beam. This structure can avoid affecting the strength of the lug plate when the shaft hole is too long; the number of lug plates can be specifically set according to the structure of the connected crane hook pulley assembly, which can be 2 pieces, 4 pieces, 6 pieces, etc.

The beam is a trapezoidal box-shaped structure with a large top and a small bottom, and is usually assembled and welded by steel plates.

Both ends of the crossbeam are provided with roller assemblies used for winding and hanging the slings connected with the lifting lugs of the equipment. The sling is arranged on the roller assembly, which can effectively reduce the friction between the sling and the equipment lug during the hoisting process of the equipment, thereby reducing the damage to the sling and the equipment lug.

Preferably, the roller assembly may include a roller seat, a roller shaft fixed in the roller seat, and a roller threaded on the roller shaft.

In order to make the hanger of the present utility model adaptable to the hoisting of equipment of different sizes, a plurality of holes may be arranged at intervals on the upper surface of the beam at both ends of the beam; There are two opposite side plates on the top; screw holes matching the holes are provided on the bottom plate, and the bottom plate is detachably fixed to both ends of the crossbeam by bolts. In this way, for the hoisting of equipment of different sizes, it is only necessary to adjust the position of the roller assembly according to the size of the equipment to be hoisted and then fix the roller assembly to the upper surface of the beam with bolts.

Preferably, 1-3 roller shafts can be arranged in the roller seat.

For 1-3 roller shafts, the axis line of each roller shaft can be parallel to the upper surface of the beam.

Compared with the prior art, the utility model directly connects the lifting lug of the sling to the hook and pulley assembly of the crane, removes the sling installed between the beam and the crane hook in the prior art, and reduces the hoisting height and the length of the crane arm can give full play to the hoisting capacity of the crane, and can also reduce the workload of construction preparations before equipment hoisting; at the same time, due to the setting of the roller assembly, it reduces the distance between the sling and the equipment lifting lug during the equipment hoisting process. friction to prevent the sling and equipment lugs from being worn, which is beneficial to ensure the safety of hoisting. The utility model is more suitable for hoisting tower equipment that needs to be hoisted upright after being transported to the hoisting site in a horizontal state, and is also suitable for equipment that does not need to be upright.

Description of drawings

Fig. 1 is the planar structure schematic diagram of the tube plate type hanging beam in the background technology of the present utility model;

Fig. 2 is a schematic diagram of the planar structure of the supporting suspension beam in the background technology of the utility model;

Fig. 3 is a schematic diagram of the planar structure of the adjustable-length suspension beam in the background technology of the utility model;

Fig. 4 is a schematic plan view of actual hoisting in the background technology of the utility model;

Fig. 5 is the three-dimensional structure schematic diagram of the utility model embodiment;

Figure 6 is a top view of Figure 5;

Fig. 7 is the front view of Fig. 5;

Fig. 8 is a sectional view along line A-A in Fig. 7;

Fig. 9 is a three-dimensional structural schematic diagram of the roller assembly in the embodiment of the present invention;

Figure 10 is a top view of Figure 9;

Fig. 11 is the front view of Fig. 9;

Fig. 12 is a sectional view along the line B-B in Fig. 11;

Fig. 13 is a schematic diagram of the actual hoisting process of the embodiment of the present invention.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 5 to 12, the hoisting gear for the equipment includes:

The beam 1 is a trapezoidal box-shaped structure with a large top and a small bottom, and is assembled and welded by steel plates. Two rows of screw holes 11 are evenly spaced on both ends of the upper surface of the beam 1 .

The lifting lug 2 includes the lug plate 21. There are four lug plates 21 in this embodiment, which are opposite to each other and symmetrically arranged in the middle of the beam 1. The lug plate 21 is provided with a shaft hole 22. In this embodiment The outside of the lug plate is also provided with a lug reinforcing ring plate 23, and the inside of the lug plate is also provided with a lug reinforcing rib plate 24 to increase the strength of the lug. The lug reinforcement ring plate and rib plate can be set according to the actual situation of hoisting and the strength of the lug plate, and no special setting is required when the strength of the lug plate is sufficient or the hoisting weight is slightly small. The shaft hole 22 in this embodiment is a circular hole. According to the scope of application of the spreader, the shaft hole can also be designed as a long strip, and a detachable lug guard plate is added outside the lug plate, and a hole matching the pin shaft is opened on the lug guard plate. The lifting lug guard plate fixes the pin shaft on the lifting lug guard plate. The lifting lug plate is provided with a lifting hole, and the pin shaft passes through the lifting hole to connect the lifting lug to the hook pulley block of the crane; along the long strip shaft hole The distance between the fixed pins can be adjusted by moving the lug guard to a suitable position, so as to be suitable for pulley assemblies of different hooks.

The pin shaft 3 is used to connect the lifting lug 2 and the crane hook pulley block assembly.

The roller assembly 4 includes two, respectively arranged on the two ends of the upper surface of the beam 1 ; including a roller seat 41 , a roller shaft 42 fixed in the roller seat 41 and a roller 43 passing through the roller shaft 42 . There are two roller shafts 42 in each roller seat 41, the diameters of the two roller shafts are equal, and the axis line of each roller shaft is all parallel to the upper surface of the beam, and each roller shaft wears a roller. The roller seat 41 comprises a base plate 411 and two opposite side plates 412 fixed on the base plate 411; the base plate 411 is provided with screw holes matching the screw holes 11 on the cross beam, and the bolts pass through the base plate and the cross beam. The screw holes detachably fix the roller assembly 4 on both ends of the beam.

Adopt the CC8800 1250-ton crane, and use the above-mentioned spreader for the hoisting of the equipment 5, as shown in Figure 13. The hoisting steps are as follows:

(1) Adjust the roller assembly to a proper position according to the size of the equipment to be hoisted, and fix the roller assemblies at both ends of the beam 1 in place with bolts and nuts.

(2) Remove the hook on the hook pulley block assembly 8 at the head of the crane arm 9 and the pin shaft fixing the hook.

(3) Connect the spreader with the hook pulley assembly at the head of the crane arm, insert the pin shaft 3 into the shaft hole on the lug plate above the middle of the beam, and connect the spreader with the pulley assembly at the head of the crane arm.

(4) Suspend the sling 7 used for hoisting equipment on the roller assemblies at both ends of the beam.

(5) Connect the sling to the equipment lug 6.

(6) The equipment starts to be hoisted until the equipment 5 is hoisted in place.

(7) Remove the hoisting sling.

(8) Remove the spreader or carry out the lifting of the next piece of equipment.

The hoisting gear provided by the utility model can maximize the hoisting capacity of the crane, save most of the preparatory work before hoisting, and the hoisting gear is easy to install; the friction in the hoisting process is greatly reduced, and the hoisting safety is effectively guaranteed.

Claims (9)

1. an equipment hoisting suspender comprises crossbeam, and crossbeam is provided with hanger, it is characterized in that described hanger is arranged on the middle part of described crossbeam; Described hanger comprises shackle plate, and shackle plate is provided with axis hole, and bearing pin passes on the lifting hook pulley group assembly that axis hole can be connected to suspender hoisting crane.

2. equipment hoisting suspender according to claim 1 is characterized in that the axis hole on the described shackle plate is elongated or circular, and the axis hole of described circle has a plurality of and is arranged on the same straight line at interval.

3. equipment hoisting suspender according to claim 1 is characterized in that described shackle plate has 4, relative in twos, as to be symmetricly set on described crossbeam middle part.

4. according to the described equipment hoisting suspender of the arbitrary claim of claim 1 to 3, it is characterized in that the echelon form box-structure that described crossbeam is big up and small down.

5. equipment hoisting suspender according to claim 4, the two ends that it is characterized in that described crossbeam are provided with and are used to connect the roll wheel assembly for the treatment of hanging device.

6. equipment hoisting suspender according to claim 5 is characterized in that described roll wheel assembly comprises roller mount, is fixed on the roller shaft in the roller mount and is through roller on the roller shaft.

7. equipment hoisting suspender according to claim 6 is characterized in that the both ends of described crossbeam are arranged at intervals with a plurality of holes on the upper surface of crossbeam; Described roller mount comprises base plate and the two blocks of side plates that are oppositely arranged that are fixed on the described base plate; Described base plate is provided with and the suitable screw in described hole, and described base plate removably is fixed on the two ends of described crossbeam by bolt.

8. equipment hoisting suspender according to claim 7 is characterized in that being provided with in the described roller mount 1-3 roller shaft.

9. equipment hoisting suspender according to claim 8 is characterized in that the upper surface of the axis parallel of described each roller shaft in described crossbeam.

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