CN112777507A - Double-jacking lower-joint-adding hand-changing lifting device and jacking method thereof - Google Patents

Abstract

The invention provides a double-top lower-node hand-changing lifting device and a jacking method thereof, wherein the double-top lower-node hand-changing lifting device comprises: the two adjacent supporting pipe joints are detachably connected, and the supporting pipe joint adjacent to the supporting pipe joint positioned at the lowest part is a first supporting pipe joint; the supporting components are arranged at the tops of the supporting pipe joints respectively, each supporting component penetrates through the corresponding supporting pipe joint along the horizontal direction, two ends of each supporting component extend out of the corresponding supporting pipe joint respectively, the supporting components on two adjacent supporting pipe joints are perpendicular to each other, and the supporting component at the top of the first supporting pipe joint is a first supporting component; and the two hydraulic jacks are respectively positioned below two ends of the first supporting component to jack the first supporting component. The double-jacking lower-section hand-changing lifting device and the jacking method thereof provided by the invention not only can meet the requirement of a larger-height jacking operation working condition, but also can reduce the quantity of auxiliary measures to the greatest extent, reduce the labor intensity and the operation difficulty and improve the safety and reliability.

Description

Double-jacking lower-joint-adding hand-changing lifting device and jacking method thereof

Technical Field

The invention relates to the technical field of hoisting and installation, in particular to a double-top lower-joint hand-changing lifting device and a jacking method thereof.

Background

In the field of hoisting and installation, a hydraulic jack is commonly used for jacking or descending a heavy object, but for jacking or descending at a larger height, due to the limited stroke of the hydraulic jack, the hydraulic jack can be jacked up or descended by changing hands for many times. At present, the conventional handoff method is off-position handoff, the off-position handoff improves the jacking height of the hydraulic jack by increasing or reducing pad piers below the hydraulic jack, meanwhile, handoff buttress piers are required to be added to support heavy objects, the requirements on the local position of a jacked structure and a supporting foundation are high, a large amount of manpower and material resources are required to be consumed, the labor intensity is very high, the safety is low, and the operation efficiency is low.

Disclosure of Invention

The invention aims to provide a double-jacking lower-joint-adding hand-changing lifting device and a jacking method thereof, which can greatly reduce safety risks and reduce the labor intensity of operation, and can effectively improve the safety and reliability and shorten the operation period.

In order to achieve the above object, the present invention provides a dual-top and bottom-added-section hand-changing lifting device, comprising:

the supporting pipe joints are stacked in the vertical direction, every two adjacent supporting pipe joints are detachably connected, and the supporting pipe joint adjacent to the supporting pipe joint positioned at the lowest position is a first supporting pipe joint;

the supporting components are arranged at the tops of the supporting pipe joints respectively, each supporting component penetrates through the corresponding supporting pipe joint along the horizontal direction, two ends of each supporting component extend out of the corresponding supporting pipe joint respectively, the supporting components on two adjacent supporting pipe joints are perpendicular to each other, and the supporting component at the top of the first supporting pipe joint is a first supporting component;

and the two hydraulic jacks are respectively positioned below two ends of the first supporting component to jack the first supporting component.

Optionally, every the supporting component all includes roof and bracket, the bracket includes two blocks of curb plates and a bottom plate, the bottom plate with the roof is parallel to each other, two the one end of curb plate is connected respectively the both sides that the bottom plate is relative, two the other end of curb plate is connected respectively the both sides that the roof is relative, so that the roof the bottom plate and two the curb plate encloses into a box.

Optionally, two ends of the box body are provided with inclined surfaces.

Optionally, the height of the support pipe section is less than the maximum stroke of the hydraulic jack.

Optionally, the top and the bottom of the support pipe joint are both provided with flanges, and two adjacent support pipe joints are connected through the flanges.

Optionally, the double-top lower-joint-adding hand-changing lifting device further comprises a foundation cushion block, and the foundation cushion block is located at the bottom of the support pipe joint at the lowest position.

Optionally, the initial height of the hydraulic jack is greater than the height of one of the support pipe sections, and the sum of the heights of the two support pipe sections and the height of the foundation cushion block is greater than the initial height of the hydraulic jack.

Based on the above, the invention also provides a method for jacking by using the double-jacking lower-joint-added handoff lifting device, which comprises the following steps:

a first supporting pipe joint and a second supporting pipe joint are arranged along the vertical direction, the first supporting pipe joint is positioned above the second supporting pipe joint, and a first supporting component and a second supporting component are respectively arranged at the tops of the first supporting pipe joint and the second supporting pipe joint to ensure that the first supporting component and the second supporting component are mutually vertical;

a hydraulic jack is arranged below each of two ends of the first supporting component;

driving the two hydraulic jacks to jack up at the preset height simultaneously, installing a third supporting pipe joint below the second supporting pipe joint, and arranging a third supporting assembly on the third supporting pipe joint to enable the third supporting assembly and the second supporting assembly to form a first preset angle;

lowering the two hydraulic jacks to transfer the load onto the third support pipe section and moving the two hydraulic jacks below the two ends of the second support assembly;

and driving the two hydraulic jacks to jack up the load simultaneously, and rotating the third supporting pipe joint by a second preset angle to enable the third supporting assembly to be vertical to the second supporting assembly and connect the second supporting pipe joint and the third supporting pipe joint.

Optionally, the first preset angle is equal to the second preset angle or a sum of the first preset angle and the second preset angle is 90 °.

Optionally, the preset height is greater than the height of the third support pipe section.

In summary, in the lifting device with the double-jack lower-section-added hand-changing function provided by the invention, the supporting assemblies are arranged on the supporting pipe sections, each supporting assembly penetrates through the corresponding supporting pipe section along the horizontal direction, two ends of each supporting assembly respectively extend out of the supporting pipe section, and the supporting assemblies on two adjacent supporting pipe sections are mutually perpendicular, so that the supporting assemblies are prevented from interfering with the hydraulic jack, and the hydraulic jack can be conveniently jacked. In addition, the invention also provides a jacking method by using the double-jack lower-joint-adding hand-changing lifting device, the joint addition and the rotary positioning of the supporting pipe joints are realized by properly ascending or descending the hydraulic jack, the requirement of a higher-height jacking working condition can be met, the auxiliary measure quantity can be reduced to the greatest extent, the labor intensity and the working difficulty are greatly reduced, and the safety reliability and the working efficiency are improved. And the hydraulic jack can be removed at any time after jacking (descending) is finished, so that the requirement of quick turnover of equipment is met.

Drawings

It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention. Wherein:

fig. 1 is a schematic structural diagram of a dual-top and bottom-added-section handoff lifting device according to an embodiment of the present invention;

FIG. 2 is a front view of a support tube section provided in accordance with an embodiment of the present invention;

FIG. 3 is a side view of a support tube segment provided in accordance with an embodiment of the present invention;

FIG. 4 is a top view of a support tube section provided in accordance with an embodiment of the present invention;

FIG. 5 is a top view of two adjacent support tube segments provided by an embodiment of the present invention;

fig. 6-10 are schematic diagrams illustrating the lifting of the dual-top and bottom-added-joint handoff lifting device according to an embodiment of the present invention.

In the drawings:

11-a first support pipe section; 12-a second support pipe section; 13-a third support pipe section; 21-a first support member; 22-a second support assembly; 23-a third support assembly; 30-hydraulic jack; 40-flange plate; 50-a base pad block; 60-a top plate; 70-side plate; 80-a bottom plate; 90-inclined plane.

Detailed Description

To further clarify the objects, advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be noted that the drawings are in greatly simplified form and are not to scale, but are merely intended to facilitate and clarify the explanation of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently. It should be further understood that the terms "first," "second," "third," and the like in the description are used for distinguishing between various components, elements, steps, and the like, and are not intended to imply a logical or sequential relationship between various components, elements, steps, or the like, unless otherwise indicated or indicated.

As shown in fig. 1 to 5, the present embodiment provides a dual-top and bottom-added-section handoff lifting device, which includes:

the supporting pipe sections are stacked in the vertical direction, every two adjacent supporting pipe sections are detachably connected, and the supporting pipe section adjacent to the supporting pipe section positioned at the lowest position is a first supporting pipe section 11;

the supporting components are respectively arranged at the top of each supporting pipe joint, each supporting component penetrates through the corresponding supporting pipe joint along the horizontal direction, two ends of each supporting component extend out of the corresponding supporting pipe joint, the supporting components on two adjacent supporting pipe joints are mutually vertical, and the supporting component at the top of the first supporting pipe joint 11 is a first supporting component 21;

and the two hydraulic jacks 30 are respectively positioned below two ends of the first supporting component 21 to jack the first supporting component 21.

Specifically, the supporting pipe joint can be used as a supporting pad pier when the hydraulic jack 30 is lifted up or lowered down, and can also be used as a hand-changing buttress in the lifting up or lowering down process of a heavy object. In this embodiment, considering the initial height of the hydraulic jack 30 and the height of the support pipe sections, the number of the support pipe sections is two, the support pipe section located above is the first support pipe section 11, and the support pipe section located below is the second support pipe section 12. First support tube section 11 top is provided with first supporting component 21, the top of second support tube section 10 is provided with second supporting component 22, hydraulic jack 30 is located the below of first supporting component 21 and can the jacking first supporting component 21 makes first supporting component 21 can drive first support tube section 11 reaches the jacking of second support tube section 12.

It should be understood that, this application does not limit the number of the supporting pipe sections, and the number of the supporting pipe sections is at least two, when the number of the supporting pipe sections is greater than 3, the supporting components on any two adjacent supporting pipe sections are perpendicular to each other, and by making the supporting components on the adjacent supporting pipe sections perpendicular to each other, the supporting components on the supporting pipe sections below are prevented from interfering with the hydraulic jack 30, so as to facilitate the jacking of the hydraulic jack 30. Meanwhile, considering that the height of a single support pipe section is limited, it is inconvenient to arrange the hydraulic jack under the lowermost support pipe section. The hydraulic jack 30 must be located below the support assembly adjacent to the lowermost support pipe section, i.e. below the second support pipe section from bottom to top.

In this embodiment, the top and the bottom of supporting the tube coupling all are provided with ring flange 40, and adjacent two supporting the tube coupling passes through ring flange 40 can dismantle the connection.

In this embodiment, the height of the supporting pipe joint is smaller than the maximum stroke of the hydraulic jack 30, so that after the hydraulic jack 30 jacks up, a new supporting pipe joint can be added to the bottom of the supporting pipe joint at the lowest position.

With reference to fig. 1, the dual-top lower-joint-added handoff lifting device further includes a base block 50, and the base block 50 is located at the bottom of the second supporting pipe joint 12. The base pad block 50 is used for adjusting the initial height of the supporting pipe joint so as to meet the requirement that the hydraulic jack 30 is matched with the supporting pipe joint for use. The thickness of the foundation pad 50 can be adjusted according to the initial height and the stroke of the hydraulic jack 30, the height of the supporting pipe section and other parameters.

In this embodiment, the initial height of the hydraulic jack 30 is greater than the height of one of the supporting pipe sections, and the sum of the heights of the two supporting pipe sections and the height of the base block 50 is greater than the initial height of the hydraulic jack 30, so that the hydraulic jack 30 can be placed below the first supporting assembly 21.

In this embodiment, the supporting component is a long strip, the top of the supporting pipe joint is provided with a notch, the supporting component penetrates through the notch along the horizontal direction, and the two ends of the supporting component are respectively located outside the supporting pipe joint, so that the hydraulic jack 30 can jack the supporting pipe joint. The supporting component and the supporting pipe joint can be connected through welding.

With reference to fig. 2 to 4, each of the support assemblies includes a top plate 60 and a bracket, the bracket includes two side plates 70 and a bottom plate 80, the bottom plate 80 is parallel to the top plate 60, one end of each of the two side plates 70 is connected to two opposite sides of the bottom plate 80, and the other end of each of the two side plates 70 is connected to two opposite sides of the top plate 60, so that the top plate 60, the bottom plate 80 and the two side plates 70 form a box. Through with the supporting component designs for the box structure, can greatly increase the intensity and the rigidity of supporting component, prevent that supporting component from taking place to buckle by the in-process of jacking.

Preferably, with reference to fig. 1-2, the two ends of the box body are provided with the inclined surfaces 90, which not only can ensure that the supporting component has sufficient rigidity and strength, but also can save materials and reduce the weight of the supporting component.

Based on this, referring to fig. 6-10 in combination with fig. 4-6, the present application further provides a method for jacking by using a dual-jacking lower-joint handoff lifting device, including:

step S1: a first supporting pipe joint 11 and a second supporting pipe joint 12 are installed along the vertical direction, the first supporting pipe joint 11 is located above the second supporting pipe joint 12, and a first supporting component 21 and a second supporting component 22 are respectively arranged at the tops of the first supporting pipe joint 11 and the second supporting pipe joint 12, so that the first supporting component 21 and the second supporting component 22 are perpendicular to each other;

step S2: a hydraulic jack 30 is respectively arranged below two ends of the first supporting component 21;

step S3: driving the two hydraulic jacks 30 to jack up at a preset height simultaneously, installing a third supporting pipe section 13 below the second supporting pipe section 12, and arranging a third supporting assembly 23 on the third supporting pipe section 13 to enable the third supporting assembly 23 and the second supporting assembly 22 to form a first preset angle;

step S4: lowering both of the hydraulic jacks 30 to transfer the load onto the third support pipe section 13 and moving both of the hydraulic jacks 30 below the ends of the second support assembly 22;

step S5: and driving the two hydraulic jacks 30 to jack up the load simultaneously, rotating the third supporting pipe joint 13 by a second preset angle to enable the third supporting component 23 to be perpendicular to the second supporting component 22, and connecting the second supporting pipe joint 12 and the third supporting pipe joint 13.

Specifically, step S1 is executed first, the first support pipe joint 11 and the second support pipe joint 12 are connected, the first support assembly 21 and the second support assembly 22 are pre-installed on the first support pipe joint 11 and the second support pipe joint 12, respectively, and the first support pipe joint 11 is rotated to make the first support assembly 21 and the second support assembly 22 perpendicular to each other.

Then, step S2 is executed, and one hydraulic jack 30 is respectively disposed below both ends of the first supporting assembly 21. In this embodiment, a base pad may be disposed below the second supporting pipe joint 12 to increase the heights of the first supporting pipe joint 11 and the second supporting pipe joint 12, so as to push the hydraulic jack 30 in.

And step S3 is executed, two hydraulic jacks 30 are driven to jack up at the same time to the preset height, a third supporting pipe section 13 is pushed below the second supporting pipe section 12, a third supporting component 23 is arranged on the third supporting pipe section 13, and the third supporting component 23 is rotated to form a first preset angle with the second supporting component 22. In this embodiment, the preset height is greater than the height of the third support pipe section 13.

Then, step S4 is executed to lower the two hydraulic jacks 30 slightly to a certain height to transfer the load to the third support pipe section 13, and the two hydraulic jacks 30 are in an unstressed state, so that the two hydraulic jacks 30 can be moved to the positions below the two ends of the second support assembly 22.

Then, step S5 is executed, two hydraulic jacks 30 are driven to simultaneously jack up the second support assembly 22 to jack up the load, at this time, the third support pipe joint 13 is in an unstressed state, the third support pipe joint 13 can be rotated by a second preset angle to make the third support assembly 23 perpendicular to the second support assembly 22, and finally, the second support pipe joint 12 and the third support pipe joint 13 are connected, so that the first joint adding process is realized.

And then repeating the steps S3-S5 continuously, and continuously adding joints below the lowest support pipe joint, thereby continuously lifting the height of the load.

It should be understood that, since the hydraulic jack 30 is disposed below the first support assembly 21, it is impossible to directly make the third support assembly 23 perpendicular to the second support assembly 22, the positional relationship between the third support assembly 23 and the second support assembly 22 on the third pipe joint is adjusted by the cooperation of the hydraulic jack 30 in steps S4-S5, so as to implement the first joint adding process.

In this embodiment, the first preset angle is equal to the second preset angle or a sum of the first preset angle and the second preset angle is 90 °. The first preset angle and the second preset angle can be equal, and the first preset angle and the second preset angle are equal and are both 45 degrees.

Or the sum of the first preset angle and the second preset angle is 90 °, for example, when the first preset angle is 60 °, the third support pipe section 13 needs to rotate clockwise by 30 °, so that the third support assembly 23 is perpendicular to the second support assembly 22.

It should be understood that the method for reducing the joints (removing the supporting pipe joints) of the dual-top lower-joint switching lifting device is opposite to the method for lifting the dual-top lower-joint switching lifting device, and the detailed description of the method is omitted here.

In summary, in the double-jack lower-section-added handoff lifting device and the jacking method thereof provided by the invention, the supporting components are arranged on the supporting pipe sections, each supporting component penetrates through the corresponding supporting pipe section along the horizontal direction, two ends of each supporting component extend out of the supporting pipe section respectively, and the supporting components on two adjacent supporting pipe sections are vertical to each other, so that the supporting components are prevented from interfering with the hydraulic jack, and the hydraulic jack can be jacked conveniently. In addition, the invention also provides a jacking method by using the double-jack lower-joint-adding hand-changing lifting device, the joint addition and the rotary positioning of the supporting pipe joints are realized by properly ascending or descending the hydraulic jack, the requirement of a higher-height jacking working condition can be met, the auxiliary measure quantity can be reduced to the greatest extent, the labor intensity and the working difficulty are greatly reduced, and the safety reliability and the working efficiency are improved. And the hydraulic jack can be removed at any time after jacking (descending) is finished, so that the requirement of quick turnover of equipment is met.

It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims (10)

1. The utility model provides a two top add festival handoff elevating gear down, its characterized in that includes:

the supporting pipe joints are stacked in the vertical direction, every two adjacent supporting pipe joints are detachably connected, and the supporting pipe joint adjacent to the supporting pipe joint positioned at the lowest position is a first supporting pipe joint;

the supporting components are arranged at the tops of the supporting pipe joints respectively, each supporting component penetrates through the corresponding supporting pipe joint along the horizontal direction, two ends of each supporting component extend out of the corresponding supporting pipe joint respectively, the supporting components on two adjacent supporting pipe joints are perpendicular to each other, and the supporting component at the top of the first supporting pipe joint is a first supporting component;

and the two hydraulic jacks are respectively positioned below two ends of the first supporting component to jack the first supporting component.

2. The dual-top-bottom-added-section handoff lifting device as claimed in claim 1, wherein each of the supporting members comprises a top plate and a bracket, the bracket comprises two side plates and a bottom plate, the bottom plate and the top plate are parallel to each other, one ends of the two side plates are respectively connected to two opposite sides of the bottom plate, and the other ends of the two side plates are respectively connected to two opposite sides of the top plate, so that the top plate, the bottom plate and the two side plates are enclosed into a box body.

3. The double top drop-added knuckle-change lifting device of claim 2, wherein both ends of said case have inclined surfaces.

4. The dual top drop-added knuckle hand-change lifting device of claim 1, wherein the height of the support tube sections is less than the maximum travel of the hydraulic jack.

5. The dual top down-added pipe-changing lifting device as claimed in claim 1, wherein flanges are provided at the top and bottom of the supporting pipe sections, and two adjacent supporting pipe sections are connected by the flanges.

6. The dual top lower extension handoff lift device of claim 1 further comprising a base pad located at the bottom of the lowermost support pipe section.

7. The dual top drop leg handoff lift device of claim 6 wherein the initial height of said hydraulic jack is greater than the height of one of said support tube sections and the sum of the height of both of said support tube sections and the height of said base block is greater than the initial height of said hydraulic jack.

8. A method of jacking using the dual top drop leg handoff lift apparatus of any of claims 1-7, comprising:

a first supporting pipe joint and a second supporting pipe joint are arranged along the vertical direction, the first supporting pipe joint is positioned above the second supporting pipe joint, and a first supporting component and a second supporting component are respectively arranged at the tops of the first supporting pipe joint and the second supporting pipe joint to ensure that the first supporting component and the second supporting component are mutually vertical;

a hydraulic jack is arranged below each of two ends of the first supporting component;

driving the two hydraulic jacks to jack up at the preset height simultaneously, installing a third supporting pipe joint below the second supporting pipe joint, and arranging a third supporting assembly on the third supporting pipe joint to enable the third supporting assembly and the second supporting assembly to form a first preset angle;

lowering the two hydraulic jacks to transfer the load onto the third support pipe section and moving the two hydraulic jacks below the two ends of the second support assembly;

and driving the two hydraulic jacks to jack up the load simultaneously, and rotating the third supporting pipe joint by a second preset angle to enable the third supporting assembly to be vertical to the second supporting assembly and connect the second supporting pipe joint and the third supporting pipe joint.

9. Jacking method according to claim 8, wherein said first preset angle is equal to said second preset angle or the sum of said first preset angle and said second preset angle is 90 °.

10. The jacking method of claim 8, wherein the predetermined height is greater than the height of the third support pipe section.

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