CN215479476U

CN215479476U - Height-adjustable's strutting arrangement

Info

Publication number: CN215479476U
Application number: CN202022930718.4U
Authority: CN
Inventors: 郭顺桂; 李文同; 吕尊营; 刘方剑; 沈宗荣; 李超平; 张召群
Original assignee: National Pipe Network Group Fujian Emergency Maintenance Co ltd
Current assignee: National Pipe Network Group Fujian Emergency Maintenance Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2022-01-11
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a height-adjustable supporting device which comprises a chassis and a plurality of hydraulic jacking mechanisms arranged on the chassis. The hydraulic jacking mechanism comprises a hydraulic pump, a hydraulic cylinder, a lifting cylinder and a shell, wherein the hydraulic pump is connected with the hydraulic cylinder and can provide jacking power for the hydraulic cylinder, the hydraulic cylinder is fixed in the shell, the lifting cylinder is arranged between the shell and the hydraulic cylinder and forms relative sliding connection with the inner wall of the shell, the top end of a telescopic rod of the hydraulic cylinder is fixedly connected with the lifting cylinder and can drive the lifting cylinder to jack up upwards to extend out of the top end of the shell and adjust the jacking height of the lifting cylinder, and the shell is fixed on the chassis. It has the following advantages: the flexible adjustment of the supporting height can be realized according to the actual requirement.

Description

Height-adjustable's strutting arrangement

Technical Field

The utility model relates to a height-adjustable supporting device.

Background

The Fujian LNG receiving station is located at a Xiu Gao of Pu Tian City in Fujian province, and at present, 4 LNG discharging arms are used for being connected with LNG transport ship pipelines, and LNG enters the receiving station pipelines from the transport ship through the discharging arms. The unloading arm needs to be horizontally transported in the process of overhaul and transportation, the total length of the unloading arm is 17.6m, the width of the unloading arm is 3m, the height of the unloading arm is 3.9m, the total weight of the unloading arm is 36T, and reserved structures connected with a conveying equipment butt joint tool are arranged at the front position, the middle position and the rear position of the unloading arm.

Unloading arm overhauls, the equipment, during the transportation, for considering the security, adopt lower support frame to support it as far as possible, however, the installation of unloading arm balancing weight needs unloading arm to have bigger space from ground, so overhaul at whole unloading arm, the transportation, in the assembling process, different stages have different requirements to the height of support frame, traditional highly fixed support frame does not have adjustable convenience at any time, in addition, for satisfying the altitude variation requirement, traditional highly fixed support frame need reach the height that the operation required through the mode of constantly connecting or dismantling of multistage support frame, not only waste time and energy but also the safety risk is very big, simultaneously because each section support frame preparation deviation, the size also can have the difference after the equipment, influence the maintenance quality. Synthesize multiple factor, now develop a height-adjustable's strutting arrangement, supplementary LNG unloads overhaul, equipment and the transportation of material arm.

SUMMERY OF THE UTILITY MODEL

The present invention provides a height adjustable support device that overcomes the deficiencies of the prior art as set forth in the background of the utility model.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a supporting device with adjustable height comprises a chassis and a plurality of hydraulic jacking mechanisms arranged on the chassis.

In one embodiment: the two sides of the chassis along the width direction are respectively connected with a plurality of supporting frames which can be opened or closed from the chassis, and the supporting frames on each side are arranged at intervals along the length direction of the chassis.

In one embodiment: this hydraulic jacking mechanism includes the hydraulic pump, the pneumatic cylinder, a lift section of thick bamboo and shell, this hydraulic pump is connected with the pneumatic cylinder and can provides jacking power for the pneumatic cylinder, this pneumatic cylinder is fixed in this shell, this lift section of thick bamboo is established between shell and pneumatic cylinder and forms relative sliding connection with the shell inner wall, the telescopic link top of this pneumatic cylinder and this lift section of thick bamboo fixed connection can drive the jack-up of a lift section of thick bamboo upwards and stretch out outside the shell top and adjust the jack-up height of a lift section of thick bamboo, this shell is fixed on the chassis.

In one embodiment: the lifting cylinder comprises an upper cover plate, a lower end flange and a cylinder wall which are coaxial, the upper cover plate is connected to the top of the cylinder wall in a covering mode, the lower end flange is a part protruding from the lower end opening of the cylinder wall to the periphery, the outer diameters of the upper cover plate and the lower end flange are larger than the outer diameter of the cylinder wall, the lower end flange of the lifting cylinder is in contact with the inner wall of the shell and can form relative sliding connection, and a limiting plate used for limiting the lifting cylinder to lift up and separate from the shell is arranged between the shell on the top end of the shell and the lifting cylinder.

In one embodiment: at least one pair of symmetrical supporting holes for a supporting rod to pass through are arranged on the sections of a plurality of spaced cylinder walls of the lifting cylinder along the axial direction.

In one embodiment: the hydraulic jacking mechanism further comprises a butt joint tool connected with external equipment, and the butt joint tool is fixedly connected with the upper cover plate of the lifting cylinder.

In one embodiment: the supporting frame is pivotally connected with the chassis through a pin shaft, so that the supporting frame can be rotatably folded on the side surface of the chassis or be outwards opened from the side surface of the chassis.

In one embodiment: the side surface of the chassis is provided with a first folding positioning hole and a first opening positioning hole, the support frame is provided with a second folding positioning hole and a second opening positioning hole, the second folding positioning hole of the support frame positioned at the folding position and the first folding positioning hole are positioned at the same axial position, the second opening positioning hole of the support frame positioned at the opening position and the first opening positioning hole are positioned at the same axial position, and the pin is provided with a pin which is strung into the first folding positioning hole and the second folding positioning hole which are coaxial or strung into the first opening positioning hole and the second opening positioning hole which are coaxial so as to lock the support frame in the folding state or the opening state.

In one embodiment: the chassis comprises a first part and a second part, and the first part and the second part are detachably spliced along the length direction of the chassis.

In one embodiment: the chassis is formed by overlapping C-shaped steel pipes in a staggered manner on the same plane, and reinforcing ribs are arranged in C-shaped grooves of the C-shaped steel pipes at the positions of the hydraulic jacking mechanisms.

In one embodiment: the hydraulic jacking mechanisms are arranged at the two end parts and the middle part of the chassis in the length direction.

In one embodiment: the shell and the chassis are locked by bolts and nuts, and lock holes for the bolts to pass through are arranged on the shell and the chassis and are long waist holes.

In one embodiment: one end of the support frame, which is far away from the chassis, is connected with a downward jackscrew mechanism.

In one embodiment: the upper part of the limiting plate is connected with a stress plate with a plurality of downward jackscrew mechanisms, and the jackscrew mechanisms are symmetrically arranged on the limiting plate.

Compared with the background technology, the technical scheme has the following advantages:

through the supporting device with the adjustable height, in the processes of maintenance, assembly and transportation of equipment (discharging arm), the supporting height can be flexibly adjusted according to actual needs, and the discharging arm is more stable and safer due to the design of the supporting frame. Meanwhile, the supporting device has the characteristics of convenience, rapidness, simplicity in operation, strong universality and the like, and the related operation is more efficient.

Drawings

The utility model is further illustrated by the following figures and examples.

Fig. 1 is a schematic diagram showing the overall structure of the height-adjustable supporting device.

Fig. 2 shows a partial enlarged view of fig. 1.

Fig. 3 shows a cross-sectional view of a hydraulic jacking mechanism.

Fig. 4 shows an overall schematic diagram of the hydraulic jacking mechanism.

Fig. 5 is a schematic structural diagram of the docking tool.

Fig. 6 is a schematic diagram showing the overall structure of the lift cylinder.

Fig. 7 illustrates a cross-sectional view of the lift cylinder.

Fig. 8 is a schematic structural diagram of the support frame.

Detailed Description

Referring to fig. 1 to 8, a height-adjustable supporting device includes a chassis 1 and a plurality of hydraulic lifting mechanisms 2 disposed on the chassis, so as to adjust the heights of different parts of equipment disposed on the supporting device, and to make the equipment supported more stably. The two sides of the chassis 1 along the width direction are respectively connected with a plurality of supporting frames 3 which can be opened or closed from the chassis, and the supporting frames 3 on each side are arranged at intervals along the length direction of the chassis 1. The support frame 3 with the folding and unfolding functions is opened during use, the effect of supporting stably is achieved, and the support frame is retracted during transportation and idling, so that the occupied space is saved.

Referring to fig. 3 to 5, the hydraulic jacking mechanism 2 includes a hydraulic pump 21, a hydraulic cylinder 22, a lifting cylinder 23 and a housing 24, the hydraulic pump 21 is connected to the hydraulic cylinder 22 and can provide jacking power for the hydraulic cylinder 22, the hydraulic cylinder 22 is fixed in the housing 24, the lifting cylinder 23 is disposed between the housing 24 and the hydraulic cylinder 22 and forms a relative sliding connection with an inner wall of the housing 24, a top end of a telescopic rod of the hydraulic cylinder 22 is fixedly connected to the lifting cylinder 23 and can drive the lifting cylinder 23 to jack up and extend out of a top end of the housing 24 and adjust a jacking height of the lifting cylinder 23, and the housing 24 is fixed on the chassis 1. The hydraulic jacking mechanism 2 further comprises a docking tool 25 for connecting with external equipment, and the docking tool 25 is fixedly connected with the upper cover plate 231 of the lifting cylinder 23. According to the structure of the equipment part to be butted, a corresponding butting tool 25 is adopted to be butted with the equipment part.

Referring to fig. 6 and 7, the lifting cylinder 23 includes an upper cover plate 231, a lower flange 232 and a cylinder wall 233, which are coaxial, the upper cover plate is covered on the top of the cylinder wall 233, the lower flange is a portion of the lower end of the cylinder wall protruding to the periphery, the outer diameters of the upper cover plate 231 and the lower flange 232 are both larger than the outer diameter of the cylinder wall 233, the lower flange 232 of the lifting cylinder 23 contacts with the inner wall of the housing 24 and can form a relative sliding connection, and a limit plate 241 for limiting the lifting cylinder 23 from being lifted off the housing 24 is disposed between the housing 24 at the top end of the housing 24 and the lifting cylinder 23. Specifically, the top end of the telescopic rod of the hydraulic cylinder 22 is fixedly connected to the central portion of the upper cover plate 231, and the upper cover plate 231 is a connecting flange. When the height of the supporting device is adjusted, the hydraulic pump 21 applies pressure to the hydraulic cylinder 22, the telescopic rod of the hydraulic cylinder 22 jacks up and drives the lifting cylinder 23 to ascend, and the lifting cylinder 23 ascends to drive the equipment part butted with the butting tool 25 to ascend.

At least one pair of symmetrical support holes 234 through which a support rod 26 can pass is arranged on the sections of a plurality of spaced cylinder walls of the lifting cylinder 23 along the axial direction. After the lifting cylinder 23 is jacked up to a desired position, the supporting rod 26 can be used to pass through two symmetrical supporting holes 234 on the corresponding cross section, and after the hydraulic pump 21 is depressurized, the supporting rod 26 falls on the limiting plate 241 to form a mechanical support for the lifting cylinder 23, so that the lifting cylinder 23 is kept at a desired height. In the jacking process, after the jacking height position is reached, if the supporting hole 234 with the proper height of the limiting plate 241 is not available, the lifting cylinder needs to be continuously lifted, and the supporting rod 26 is inserted after the next supporting hole 234 is exposed out of the stress surface, so that the operation requirement can be met, but accurate stepless height adjustment cannot be realized. Furthermore, a stress plate with a plurality of downward wire pushing mechanisms is connected above the limiting plate 241, and the wire pushing mechanisms are symmetrically arranged on the limiting plate 241. After the lifting cylinder 23 is lifted to the required height, the lifting cylinder does not need to be continuously lifted, and the stress plate can be moved upwards only by downwards rotating the jackscrew mechanism and is attached to the support rod 26 for stress support, so that stepless height adjustment is realized, and the height is more accurately adjusted.

The support frame 3 is pivotally connected to the chassis 1 by a pin 33 so that the support frame can be rotatably folded on the side of the chassis 1 or be opened outward from the side of the chassis 1. The pin shaft 33 is provided with a grease injection nozzle to meet the requirement of rotary lubrication.

The side of the chassis 1 is provided with a first folding positioning hole 11 and a first opening positioning hole 12, the support frame 3 is provided with a second folding positioning hole 31 and a second opening positioning hole 32, the second folding positioning hole 31 of the support frame 3 located at the folding position and the first folding positioning hole 11 are located at the same axial position, the second opening positioning hole 32 of the support frame 3 located at the opening position and the first opening positioning hole 12 are located at the same axial position, and the pin is provided with a pin which is strung into the coaxial first folding positioning hole 11 and the second folding positioning hole 31 or strung into the coaxial first opening positioning hole 12 and the second opening positioning hole 32, so as to lock the support frame 3 in the folding state or the opening state.

One end of the supporting frame 3 far away from the chassis 1 is connected with a downward jackscrew mechanism. When unloading the arm and overhauing, the ground of overhauing the place is not necessarily complete horizontally, probably has certain unsmooth, and jackscrew mechanism can be adjusted through jackscrew mechanism to the condition of overhauing the place, and the unsmooth on effective compensation ground makes whole supporting effect more firm.

The chassis 1 comprises a first part 101 and a second part 102, and the first part 101 and the second part 102 are detachably spliced along the length direction of the chassis 1. Can be disassembled during transportation, and is convenient for transportation.

The chassis 1 is formed by overlapping C-shaped steel pipes in a staggered manner on the same plane, and reinforcing ribs 13 are arranged in C-shaped grooves of the C-shaped steel pipes at the positions of the hydraulic jacking mechanisms 2, so that the overall bearing strength of the chassis 1 can be improved.

The hydraulic jacking mechanisms 2 are arranged at the two end parts and the middle part of the chassis 1 in the length direction. The hydraulic jacking mechanism 1 is provided with a hydraulic oil pipe access window at the lower part, a quick connector of the hydraulic oil pipe access window is arranged in the window, when in use, the hydraulic oil pipe outside the window is in butt joint with the hydraulic oil pipe access window to supply oil to the hydraulic cylinder, and the quick connector of the oil pipe access window is arranged in the window, thus being beneficial to protecting the oil pipe and the connector in use and transportation processes.

The shell 24 of the hydraulic jacking mechanism 2 is locked with the chassis 1 through bolts and nuts, the shell 24 and the chassis 1 are provided with lock holes 242 for the bolts to pass through, and the lock holes 242 are long waist holes. Fine adjustment of the installation position of the hydraulic jack 2 can be performed.

In a preferred embodiment, a LNG storage tank needs to be overhauled by the unloading arm according to an overhaul plan, and the overhaul process includes transportation of the unloading arm and assembly of parts.

And (3) a transportation process:

firstly, a first part 101 and a second part 102 of a supporting device chassis 1 are assembled into a whole through bolts, supporting frames 3 on two sides of the supporting device chassis 1 are kept in a withdrawing state, and hydraulic jacking mechanisms 2 are respectively arranged on corresponding positions of the supporting device chassis 1 and are in the lowest position. Because the three supporting point connection structure of unloading arm body has some differences, so according to the actual installation condition of unloading arm on the device, will correspond three different supporting point connection structure's butt joint frock 25 and correspondingly install on the flange plate of connecting on the upper portion of a lift section of thick bamboo 23, utilize lifting device to hang the unloading arm to the strutting arrangement who assembles, correspond each supporting point on the unloading arm and be connected with three hydraulic jacking mechanism 2, because the lockhole between hydraulic jacking mechanism 2 and chassis 1 is waist hole, so when unloading arm and hydraulic jacking mechanism 2 are connected, hydraulic jacking mechanism 2 can realize the micro-displacement, realize the accurate location cooperation in the connection process. After the equipment connection is completed, the external hydraulic pump 21 is connected with the three hydraulic cylinders 22, the height required during transportation is adjusted through hydraulic power, after the height is adjusted, the support rods 26 are connected in series into the corresponding support holes 234 to form effective mechanical support, the pressure of the hydraulic cylinders 22 is released, and then loading transportation is started.

Overhauling and assembling processes:

after the equipment is wholly transported to the overhaul assembly site, a relatively flat site is selected, the discharge arm is integrally hung down together with the supporting device through the hoisting equipment, the supporting frames 3 on two sides of the chassis 1 are opened, the jackscrew mechanism at the end part of the supporting frame 3 is adjusted to compensate the unevenness of the ground, so that the whole supporting frame 3 is in good contact with the ground, the stress is uniform, the overall height is also adjusted through the external hydraulic pump 21 according to the assembly height requirement, after the height is adjusted, the supporting rod 26 is strung into the corresponding supporting hole 234, an effective mechanical support is formed, the pressure of the hydraulic cylinder 22 is released, and overhaul and assembly is started.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the utility model, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a height-adjustable's strutting arrangement which characterized in that: including the chassis and establishing a plurality of hydraulic pressure climbing mechanism on the chassis, this hydraulic pressure climbing mechanism includes the hydraulic pump, the pneumatic cylinder, a lift section of thick bamboo and shell, this hydraulic pump is connected with the pneumatic cylinder and can provides jacking power for the pneumatic cylinder, this pneumatic cylinder is fixed in this shell, this lift section of thick bamboo is established between shell and pneumatic cylinder and forms relative sliding connection with the shell inner wall, the telescopic link top of this pneumatic cylinder and this lift section of thick bamboo fixed connection and can drive the jack-up height that the jack-up of a lift section of thick bamboo stretched out outside the shell top and adjusted the shell, this shell is fixed on the chassis.

2. A height adjustable support device as claimed in claim 1, wherein: the two sides of the chassis along the width direction are respectively connected with a plurality of supporting frames which can be opened or closed from the chassis, and the supporting frames on each side are arranged at intervals along the length direction of the chassis.

3. A height adjustable support device as claimed in claim 1, wherein: the lifting cylinder comprises an upper cover plate, a lower end flange and a cylinder wall which are coaxial, the upper cover plate is connected to the top of the cylinder wall in a covering mode, the lower end flange is a part protruding from the lower end opening of the cylinder wall to the periphery, the outer diameters of the upper cover plate and the lower end flange are larger than the outer diameter of the cylinder wall, the lower end flange of the lifting cylinder is in contact with the inner wall of the shell and can form relative sliding connection, and a limiting plate used for limiting the lifting cylinder to lift up and separate from the shell is arranged between the shell on the top end of the shell and the lifting cylinder.

4. A height adjustable support device as claimed in claim 3, wherein: at least one pair of symmetrical supporting holes for a supporting rod to pass through are arranged on the sections of a plurality of spaced cylinder walls of the lifting cylinder along the axial direction.

5. A height adjustable support device as claimed in claim 3, wherein: the hydraulic jacking mechanism further comprises a butt joint tool connected with external equipment, and the butt joint tool is fixedly connected with the upper cover plate of the lifting cylinder.

6. A height adjustable support device as claimed in claim 2, wherein: the supporting frame is pivotally connected with the chassis through a pin shaft, so that the supporting frame can be rotatably folded on the side surface of the chassis or be outwards opened from the side surface of the chassis.

7. A height adjustable support device as claimed in claim 6, wherein: the side surface of the chassis is provided with a first folding positioning hole and a first opening positioning hole, the support frame is provided with a second folding positioning hole and a second opening positioning hole, the second folding positioning hole of the support frame positioned at the folding position and the first folding positioning hole are positioned at the same axial position, the second opening positioning hole of the support frame positioned at the opening position and the first opening positioning hole are positioned at the same axial position, and the pin is provided with a pin which is strung into the first folding positioning hole and the second folding positioning hole which are coaxial or strung into the first opening positioning hole and the second opening positioning hole which are coaxial so as to lock the support frame in the folding state or the opening state.

8. A height adjustable support device as claimed in claim 1, wherein: the chassis comprises a first part and a second part, and the first part and the second part are detachably spliced along the length direction of the chassis.

9. A height adjustable support device as claimed in claim 1, wherein: the chassis is formed by overlapping C-shaped steel pipes in a staggered manner on the same plane, and reinforcing ribs are arranged in C-shaped grooves of the C-shaped steel pipes at the positions of the hydraulic jacking mechanisms.

10. A height adjustable support device as claimed in claim 1, wherein: the hydraulic jacking mechanisms are arranged at the two end parts and the middle part of the chassis in the length direction.

11. A height adjustable support device as claimed in claim 1, wherein: the shell and the chassis are locked by bolts and nuts, and lock holes for the bolts to pass through are arranged on the shell and the chassis and are long waist holes.

12. A height adjustable support device as claimed in claim 2, wherein: one end of the support frame, which is far away from the chassis, is connected with a downward jackscrew mechanism.

13. A height adjustable support device as claimed in claim 3, wherein: the upper part of the limiting plate is connected with a stress plate with a plurality of downward jackscrew mechanisms, and the jackscrew mechanisms are symmetrically arranged on the limiting plate.