CN109553008B - Hoisting equipment and hoisting assembly - Google Patents

Abstract

The invention relates to the field of construction machinery, and discloses a hoisting device and a hoisting assembly. The hoisting device comprises a base (1), a hoisting part (2) and a lifting lug part, and the hoisting part (2) is provided with On the base (1) and used for lifting operations, the lifting lugs are arranged on the base (1) so that the lifting device can be lifted. The hoisting equipment of the present application is easy to maintain and has high stability, and can also be placed on a transport vehicle, and has good maneuverability.

Description

Lifting equipment and lifting assemblies

technical field

The invention relates to the field of construction machinery, in particular to a hoisting device and a hoisting assembly.

Background technique

At present, the commonly used truck cranes are usually composed of the vehicle chassis (including the special vehicle chassis and the ordinary vehicle chassis) and the upper part of the vehicle. The truck crane has the characteristics of good mobility, but the center of gravity of the truck crane has a large gap from the ground, which causes the stability of the support. And the chassis of the truck crane needs regular maintenance and maintenance, and the cost is high, so a device that is convenient for daily maintenance and high stability, and has the mobility of a truck crane at the same time is required.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a lifting device in order to overcome the problems of inconvenient maintenance and low stability of the truck crane in the prior art.

In order to achieve the above object, one aspect of the present invention provides a lifting device, the lifting device includes a base, a lifting portion and a lifting lug portion, the lifting portion is arranged on the base and is used for lifting operations, The lifting lugs are provided on the base to enable the lifting device to be lifted.

Preferably, the lifting apparatus includes a support portion mounted to the base and capable of forming a support for the base, the support portion being configured to be telescopic to keep the base level.

Preferably, the support part includes a plurality of adjustment legs, each of the adjustment legs has a first support rod extending in a vertical direction, the first support rod is a retractable structure, and the first support rod The end of the rod can be in contact with the ground so that a plurality of the first struts jointly support the base.

Preferably, a push-pull member is provided on the base, and each of the adjustment legs further includes a second support rod, the second support rod is rotatably connected to the base, and the second support rod is connected to the The push-pull member can be driven by the push-pull member, so that the second support rod can swing in a horizontal direction, and the first support rod is connected with the second support rod to follow the movement of the second support rod.

Preferably, the hoisting device includes a leveling control mechanism, the second strut extends in a horizontal direction, the push-pull member is a piston cylinder that extends and retracts in the horizontal direction, and the leveling control mechanism is used to control the push-pull The push-pull member can be positioned in any telescopic position.

Preferably, the first strut is a piston cylinder that is telescopic in a vertical direction, and the leveling control mechanism is used to control the expansion and contraction of the first strut and can position the first strut at any telescopic position .

Preferably, the first strut is configured such that an end of the first strut is movable between a first position and a second position in which the end of the first strut is higher than the end of the first strut. The bottom surface of the base, the end of the first support rod at the second position is lower than the bottom surface of the base and the distance from the bottom surface of the base is H, where H≤1000mm.

Preferably, the surface of the base is rectangular, and the adjusting legs at least include: four first adjusting legs respectively arranged at four corner positions of the base; and two two adjusting legs respectively arranged on the base The second adjusting leg at the middle position of each long side.

Preferably, the hoisting device includes a level sensor capable of feeding back an inclination signal to the leveling control mechanism, so that the leveling control mechanism adjusts the support portion according to the inclination signal.

Preferably, the base is provided with a positioning hole for preventing the base from moving when the lifting device is transported.

Preferably, the base, the lifting lug portion and the lifting portion together form a skid-mounted structure.

Preferably, the lifting lug portion includes a plurality of lifting lugs correspondingly distributed on two opposite sides of the base.

Preferably, a plurality of grooves are formed on the side of the base, the ends of the grooves are flush with the side of the base, and the lifting ears are arranged in the grooves so that the lifting ears are not protruding from the side of the base.

A second aspect of the present invention provides a lifting assembly, characterized in that, the lifting assembly includes a transport vehicle and the above-mentioned lifting equipment, and the base is mounted on the transport vehicle.

Through the above technical solutions, the hoisting device provided by the present application can be placed on a vehicle such as a vehicle, and the hoisting device can be transported to the job site through the transportation tool. Since the hoisting device has a lifting lug, other hoisting devices can be used to Lifting equipment is hoisted and placed on the job site. The hoisting equipment provided by the present application is easy to maintain and has high stability. Compared with common truck cranes, the hoisting equipment of the present application does not require a vehicle base, can be placed on a transport tool, and has good mobility.

Description of drawings

Figure 1 is a schematic diagram of a lifting device according to a preferred embodiment of the present invention;

Figure 2 is a schematic diagram of a lifting assembly according to a preferred embodiment of the present invention;

Fig. 3 is the top view of the lifting apparatus of Fig. 1;

Fig. 4 is the schematic diagram of the connection between the push-pull member and the second support rod of the lifting equipment of Fig. 1;

FIG. 5 is a partial schematic view of the lifting apparatus of FIG. 1 to illustrate the structure at the lifting lug.

Description of reference numerals

1-Base 2-Lifting part 3-First support rod 4-Second support rod 5-Push-pull piece 6-Positioning hole 7-Lifting lug 8-Groove

Detailed ways

The present invention provides a hoisting device, the hoisting device includes a base 1, a hoisting part 2 and a lifting lug part, the hoisting part 2 is arranged on the base 1 and is used for lifting operations, and the hoisting part 2 is used for lifting operations. Ears are provided on the base 1 to enable the lifting device to be hoisted.

Through the above technical solutions, the hoisting device provided by the present application can be placed on a vehicle such as a vehicle, and the hoisting device can be transported to the job site through the transportation tool. Since the hoisting device has a lifting lug, other hoisting devices can be used to Lifting equipment is hoisted and placed on the job site. The hoisting equipment provided by the present application is easy to maintain and has high stability. Compared with common truck cranes, the hoisting equipment of the present application does not require a vehicle base, can be placed on a transport tool, and has good mobility.

Wherein, as shown in FIG. 1 , the base 1 , the lifting lugs and the lifting portion 2 together form a skid-mounted structure, that is, the components constituting the lifting portion 2 are integrally installed on the base 1 to constitute the The components can complete a complete set of lifting operations. Referring to the structure shown in Figure 1, the lifting part 2 at least includes a boom, a hook, a control room and the necessary electrical systems and power systems, so that the lifting equipment can be placed on the After the job site, the lifting equipment can independently carry out the lifting operation.

The lifting lug portion can adopt a specific structure. The lifting lug portion includes a plurality of lifting lugs 7. The lifting lugs 7 are arranged on the side surface of the base 1. In the structures shown in FIG. 1 and FIG. There are 4 lifting lugs in total, and other lifting equipment can be connected to the 4 lifting lugs through 2 or more suspending ropes and keep the distance between the 4 lifting lugs and the lifting points. If they are equal, the base 1 can be hoisted horizontally and stably. It should be noted that, through the four lifting lugs, not only the lifting equipment can be lifted, but also the lifting equipment can be dragged through the lifting lugs.

The hoisting equipment provided by the application can be installed on a transportation tool, so that it can be moved by the transportation tool. Fig. 2 shows the state where the hoisting equipment is set on a truck; A positioning hole 6 is formed on the bottom surface of the base 1 and extends vertically upward. A positioning rod extending vertically upward can be provided on the supporting surface of the truck on which the base is placed, and the positioning rod extends into the base. In the state of the positioning holes 6 on the 1, the base 1 cannot move, so as to ensure that the lifting equipment does not shake during transportation. When the lifting equipment is required for lifting operations, the lifting equipment can be used vertically through other lifting equipment By lifting, the positioning hole can be separated from the positioning rod on the truck.

The bottom surface of the base 1 is flat so that it can be directly set on a flat ground, so that the lifting operation can be carried out stably. A support portion, which is mounted on the base and can form a support for the base 1 , and is configured to be able to expand and contract to keep the base 1 horizontal. Specifically, the support portion includes a plurality of adjustment legs, each of the adjustment legs has a first support rod 3 extending in a vertical direction, the first support rod 3 is a telescopic structure, and the first support rod 3 is a telescopic structure. The ends of the struts 3 can be in contact with the ground so that the plurality of first struts 3 jointly support the base 1 . Since each first support rod 3 is a telescopic structure, when the lifting equipment needs to be placed on an uneven support surface, the length of each first support rod 3 can be adjusted adaptively according to the situation of the support surface, so that the base 1 can remain Level.

Also preferably, each adjustment leg includes a first support rod 3 and a second support rod 4, the second support rod 4 is rotatably connected to the base 1, and a push-pull member is provided between the second support rod 4 and the base 1 5. The push-pull member 5 can push the second support rod 4 to swing the second support rod 4 in the horizontal direction. Since the first support rod 3 is connected to the second support rod 4 , the second support rod 4 can drive the first support rod 3 common movement. Since the second support rod 4 can move, the first support rod 3 can change the contact position with the ground or the support surface, so that the first support rod 3 can select a more suitable position for supporting on the ground or the support surface.

Wherein, the second support rod 4 can be hinged on the base 1, the push-pull member 5 can push the second support rod 4 to rotate on the horizontal plane around the hinge point with the base 1, and the second support rod 4 can also be connected to the base in the form of a suit 1, as long as the second strut 4 can have the degree of freedom to move in the horizontal direction so that it can be pushed by the push-pull member.

In the embodiment of the present application, the second support rod 4 is hinged on the base 1 along the horizontal direction, the first support rod 3 is connected to the end of the second support rod 4 and is arranged along the vertical direction, and the push-pull member 5 is selected along the horizontal direction. The piston cylinder that is telescopic in the direction is arranged on the same plane as the second support rod 4, and the rotation position of the second support rod 4 can be controlled by controlling the expansion and contraction of the push-pull member; with reference to the structure shown in FIG. 4, one end of the piston cylinder is set on the base 1, the other end is set on the second support rod 4, and the swing of the push-pull member can be controlled by the expansion and contraction of the piston cylinder; similarly, the first support rod 3 is a telescopic cylinder that is telescopic in the vertical direction. The telescopic cylinders of the struts 3 are locked in a desired telescopic position, so that the ends of the plurality of first struts 3 can be in contact with the ground to form a stable support for the base.

In the structure shown in FIG. 3 , the surface of the base 1 is rectangular, and the adjusting legs include four first adjusting legs and two second adjusting legs, and the four first adjusting legs are respectively arranged on the four sides of the base 1 . The first adjustment legs at each corner position, the two second adjustment legs are respectively arranged in the middle of the two long sides of the base 1 , and the first support rods 3 of the four first adjustment legs can form a connection to the base 1 . For uniform support, since the middle of the base 1 is subjected to the greatest force during the lifting operation, the first support rod 3 of the two second adjusting legs supports the middle of the base 1 to ensure the stability of the base 1 . It should be noted that the above is only a preferred embodiment of the present application, and the number of adjusting legs is not limited to six.

In addition, by arranging the first adjusting legs at the four corners of the base 1, the lifting operation range of the lifting equipment can be expanded. Specifically, taking the structure shown in FIG. 3 as an example, when the lifting equipment needs to lift the heavy object located on the left side of the drawing direction of FIG. Rotate to the left side of the direction, so that the fulcrum position of the corresponding first support rod 3 is closer to the heavy object to be lifted, which effectively reduces the risk of the lifting equipment tipping to the left side in the direction of the drawing; When there is a heavy object on the upper side, lower side or right side of the drawing direction, the second support rod 4 of the first adjusting leg can be manipulated to rotate in the corresponding direction, so that the fulcrum position of the first support rod 3 is closer to the to-be-hoisted It should be noted that, since the rotation of the second support rod 4 of the second adjustment leg is not a necessary feature of the lifting equipment to reduce the overturn, the operation of the second adjustment leg can be simplified. Structure, the second rod 4 of the second adjusting leg can be fixedly arranged on the base 1 instead of being hinged, thereby saving costs.

Continuing to refer to the structure of FIG. 3 , the height of the second rod 4 of the first adjusting leg is the same as that of the base 1, so the second rod 4 can be rotated to a position attached to the side of the base 1 when rotating, and the second The second rods 4 of the adjustment legs can be in the form of piston cylinders to be retracted in the base 1, so by moving the second rods 4 of each adjustment leg to the above position and retracting the first rods 3 to Reduces the space occupied by the lifting equipment, making it easier to place the lifting equipment on the transport vehicle. Wherein, in order to make the position of the second support rod 4 of the first adjusting leg attached to the base 1 not affect the setting of the lifting lug 7, as shown in FIG. 3 and FIG. Slot 8, the end of the groove 8 is flush with the side of the base 1, and the lifting lug 7 is arranged in the groove 8 so that the lifting lug 7 does not protrude from the side of the base 1; The height of the support rod 4 can also be completely higher than the height of the base 1, so that when the second support rod 4 is retracted (that is, when it is rotated to a position parallel to the base 1), it does not affect the lifting lugs 7 on the side of the base 1. In this case, the groove 8 is not required.

It should be noted that the present application is not limited to arranging lifting lugs on the base, and the lifting equipment can also be lifted in other forms, for example, the boom head of the lifting part 2 and the lifting device can be lifted simultaneously with a lifting rope. The hoisting equipment can be hoisted by the tail of the turntable of the part 2; the first adjusting legs located on the base 1 can also be hoisted at the same time with a sling, because the four first adjusting legs are located at the four corners of the base 1 respectively. , so that the hoisting device can also be stably hoisted; in addition, the hoisting device can also be directly fixed under the turntable of the hoisting part 2 to hoist the hoisting device.

For the level ground, the base can be directly placed on the level ground without the support of the first support rod. Therefore, preferably, the piston cylinder of the first support rod 3 is set to be retractable to be lower than the bottom surface of the base 1 so as not to affect the contact between the base 1 and the ground; on the other hand, the piston cylinder of the first support rod 3 can be extended up to a position where the distance between the end of the first support rod and the bottom surface of the base 1 is 1000mm, Therefore, the center of gravity of the hoisting equipment of the present application is significantly lower than that of common truck cranes during operation, thereby improving the stability of the hoisting equipment.

The hoisting equipment provided by the present application further includes a leveling control mechanism, which can control the extension and retraction of the push-pull member and the first support rod 3 . Specifically, a telescopic cylinder is selected for the push-pull member, and the leveling control mechanism can control the push-pull member. and can position the push-pull member at any telescopic position; similarly, the first support rod 3 selects a telescopic cylinder, and the leveling control mechanism can control the expansion and contraction of the first support rod 3 and can position the first support rod 3 at any telescopic position. Through the leveling control mechanism, the operator can arbitrarily control the rotational position of the second support rod 4 and the telescopic position of the first support rod 3 , thereby keeping the base 1 in a horizontal state.

In order to realize the automatic leveling of the adjusting outriggers, the hoisting equipment also includes a level sensor. When the hoisting equipment is placed on the work site, the level sensor can obtain the inclination signals of the horizontal plane and the vertical plane, and feed the signals back to Leveling control mechanism, the leveling control mechanism controls the support portion correspondingly according to the signal, specifically, controls the telescopic position of each first support rod, and controls the telescopic position of the push-pull member, so that each adjustment leg is adjusted to be able to make The base 1 is kept in a horizontal state so that the base 1 is horizontally supported on the work site.

A second aspect of the present application provides a lifting assembly, which includes a transport vehicle and the above-mentioned lifting equipment, the base 1 is mounted on the transport vehicle, and the lifting equipment of the lifting assembly It can be hoisted by other lifting equipment and placed on the job site, and carry out lifting operations.

The preferred embodiments of the present invention have been described above in detail with reference to the accompanying drawings, however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. Include individual specific technical features combined in any suitable manner. In order to avoid unnecessary repetition, the present invention will not describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims (10)

1. Hoisting device, characterized in that it comprises a base (1), a hoisting part (2) and a lifting lug part, said hoisting part (2) being arranged on said base (1) and being intended for hoisting operations, said lifting lug part being arranged on said base (1) so that it can be lifted, the hoisting device comprising a support part which is mounted to said base and which is able to form a support for said base (1), said support part being configured to be telescopic so that said base (1) is kept horizontal, said support part comprising a plurality of adjustment legs, each of said adjustment legs having a first limb (3) extending in a vertical direction, said first limb (3) being of a telescopic construction, the end of said first limb (3) being able to be in contact with the ground so that said plurality of first limbs (3) jointly support said base (1), be provided with on the base (1) and push away and draw piece (5), every it still includes second branch (4) to adjust the landing leg, second branch (4) rotatably connect in base (1), second branch (4) are connected push away and draw the piece and can by push away and draw piece (5) drive, so that second branch (4) can swing on the horizontal direction, first branch (3) are connected second branch (4) are in order to follow second branch (4) motion, the surface of base (1) is the rectangle, it includes at least to adjust the landing leg:

four first adjustment legs arranged at four angular positions of the base (1), respectively; and

two second adjusting supporting legs which are respectively arranged at the middle positions of the two long edges of the base (1).

2. Hoisting device as claimed in claim 1, characterized in that the hoisting device comprises a leveling control mechanism, the second strut (4) extending in a horizontal direction, the push-pull member (5) being a piston cylinder extending in a horizontal direction, the leveling control mechanism being adapted to control the extension and retraction of the push-pull member (5) and being able to position the push-pull member (5) in any extended position.

3. Hoisting device as claimed in claim 2, characterized in that the first strut (3) is a piston cylinder which is telescopic in the vertical direction, and that the levelling control means are adapted to control the telescoping of the first strut (3) and to be able to position the first strut (3) in any telescopic position.

4. Hoisting device as claimed in claim 3, characterized in that the first pole (3) is arranged such that the end of the first pole (3) can be moved between a first position, in which the end of the first pole (3) is higher than the bottom surface of the base (1), and a second position, in which the end of the first pole (3) is lower than the bottom surface of the base (1) and the distance between the bottom surface of the base (1) is H, H ≦ 1000 mm.

5. Hoisting device as claimed in claim 3, characterized in that the hoisting device comprises a level sensor which is capable of feeding back an inclination signal to the leveling control mechanism for the leveling control mechanism to adjust the support part in dependence on the inclination signal.

6. Hoisting device as claimed in claim 1, characterized in that the base (1) is provided with positioning holes (6) for preventing the movement of the base (1) when transporting the hoisting device.

7. Hoisting device as claimed in any one of the claims 1-6, characterized in that the base frame (1), the ear portion and the hoisting portion (2) together constitute a skid-mounted structure.

8. Hoisting device as claimed in any one of the claims 1-6, characterized in that said lifting eye portion comprises a plurality of lifting eyes (7), said plurality of lifting eyes (7) being distributed correspondingly on two opposite sides of said base (1).

9. Hoisting device as claimed in claim 8, characterized in that the base is formed with a plurality of recesses (8) on its sides, the ends of the recesses (8) being flush with the sides of the base (1), and that the lifting lugs (7) are arranged in the recesses (8) such that the lifting lugs (7) do not project beyond the sides of the base (1).

10. A lifting assembly, characterised in that it comprises a transport vehicle to which the base (1) is mounted and a lifting device as claimed in any one of claims 1 to 9.

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