CN117584835A

CN117584835A - Lifting adjusting device and gas turbine transport vehicle with same

Info

Publication number: CN117584835A
Application number: CN202311554344.2A
Authority: CN
Inventors: 刘菁; 王鹏; 许林海; 沈世东; 周明; 何莎
Original assignee: Hangfa Gas Turbine Zhuzhou Co ltd
Current assignee: Hangfa Gas Turbine Zhuzhou Co ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-02-23

Abstract

The invention discloses a lifting adjusting device and a fuel engine transport vehicle with the same, comprising: the device comprises an outer cylinder assembly, an inner cylinder assembly, a driving rod group and a connecting structure. The outer cylinder assembly is used for being connected with the frame of the transport vehicle, the inner cylinder assembly is axially and slidably arranged in the outer cylinder assembly, and the lower end of the inner cylinder assembly extends outwards to be used for installing casters of the gas turbine transport vehicle. The driving rod group is axially arranged in the inner shaft hole of the inner cylinder component, the upper end of the driving rod group penetrates through the closed end of the outer cylinder component and then extends outwards to form a bearing end, and the driving rod group is respectively propped against two sides of the closed end of the outer cylinder component to limit, so that the driving rod group only rotates when the bearing end is stressed. The connecting structure is connected between the driving rod group and the inner cylinder component, and is used for enabling the inner cylinder component to slide up and down along the inner shaft hole of the outer cylinder component and to slide in place and then self-lock when the driving rod group rotates under the bearing force. According to the scheme, the adjustable mechanism can be used for adjusting the object during carrying, and the technical problem that in the prior art, the adjustment is limited by gears and stepless adjustment is difficult to realize is solved.

Description

Lifting adjusting device and gas turbine transport vehicle with same

Technical Field

The invention relates to the technical field of fuel machine transportation devices, in particular to a lifting adjusting device. The invention also relates to a gas turbine transport vehicle comprising the lifting adjusting device.

Background

In order to meet the different height requirements of the light gas turbine on different working environments in the process of disassembly and assembly and the process of short-distance transportation, a device capable of adjusting the lifting on a transport vehicle is specially designed. The existing fuel engine transport vehicle is generally provided with wheels which are directly arranged on the transport vehicle, so that the height cannot be adjusted, and the requirement can be met only by repeatedly using the crane to lift and cooperate. A few so-called adjustable transport vehicles are simply to add multiple rows of mounting holes on the transport vehicle, and the height of the transport vehicle is adjusted by changing the mounting positions of the wheels of the transport vehicle.

At present, the existing adjusting mode mainly comprises pre-adjusting, namely, a plurality of rows of mounting holes are added on a transport vehicle, and the transport vehicle wheels are mounted on the mounting holes with different heights, so that the mounting positions of the transport vehicle wheels are changed to achieve the purpose of adjusting the height of the transport vehicle. The adjustment mode is limited by gears, so that stepless adjustment is difficult to realize; the adjustment period is long, when the height adjustment is carried out, the adjustment is carried out by matching with the disassembly and assembly bolts and nuts, the objects cannot be carried on the transport vehicle when the operation is required, the process is complicated, the repeated work is more, and the work efficiency is affected; repeated disassembly and assembly of the wheels is required for multiple adjustment, so that the service life of the transport vehicle is reduced; the height of the gas turbine can not be adjusted according to the needs in the using process of the transportation gas turbine, and the requirements of emergency task fast-forwarding can not be met.

Disclosure of Invention

The invention provides a lifting adjusting device and a gas turbine transport vehicle with the lifting adjusting device, and aims to solve the technical problems that in an existing adjusting mode, adjustment is limited by gears, stepless adjustment is difficult to achieve, the adjusting period is long, objects cannot be carried on the transport vehicle during adjusting operation, the adjusting process is complex, repeated work is multiple, the working efficiency is low, the service life of the transport vehicle is easy to reduce, the height of the transport vehicle cannot be adjusted according to requirements in the using process of a gas turbine, and the requirements of emergency task quick-stop cannot be met.

The technical scheme adopted by the invention is as follows:

a lifting adjustment device for use on a gas turbine carrier vehicle for transporting a gas turbine, the lifting adjustment device comprising: the device comprises a hollow cylindrical outer cylinder assembly with a closed upper end, a hollow cylindrical inner cylinder assembly, a driving rod group for bearing driving and a connecting structure for connecting; the outer cylinder assembly is used for being connected with a frame of the gas turbine transport vehicle, the inner cylinder assembly is axially and slidably arranged in an inner shaft hole of the outer cylinder assembly, and the lower end of the inner cylinder assembly extends outwards from the lower end of the outer cylinder assembly to be used for installing casters of the gas turbine transport vehicle; the driving rod group is axially arranged in an inner shaft hole of the inner cylinder assembly, the upper end of the driving rod group penetrates through the closed end of the outer cylinder assembly and then extends outwards to form a bearing end, and the driving rod group is respectively propped against two sides of the closed end of the outer cylinder assembly to limit, so that the driving rod group only rotates when the bearing end is stressed; the connecting structure is connected between the driving rod group and the inner cylinder component, and is used for enabling the inner cylinder component to slide up and down along the inner shaft hole of the outer cylinder component and to slide in place and then self-lock when the driving rod group rotates under the bearing force.

Further, the driving rod group comprises a driving rod, a handle and a connecting pin, wherein the driving rod is arranged along the axial direction, the handle is used for bearing force, and the connecting pin is used for connecting and fixing; the driving rod comprises an action section and an overhanging section which are connected along the axial direction, the action section is positioned in an inner shaft hole of the inner cylinder assembly and is connected with the connecting structure, the overhanging section upwards penetrates through the closed end of the outer cylinder assembly and then overhangs, and a limiting journal which is propped against the inner side of the closed end of the outer cylinder assembly is formed at the connecting position of the overhanging section and the action section; the handle is sleeved on the outer circle of the outer extending section and abuts against the outer side of the closed end of the outer cylinder assembly to limit; the connecting pin penetrates through the handle and the extending section to fix the handle and the driving rod.

Further, the connecting structure comprises a sleeve fixed in the inner shaft hole of the inner barrel assembly, an inner thread arranged on the inner peripheral surface of the sleeve and an outer thread arranged on the outer circle of the acting section; the driving rod is matched with the internal thread of the sleeve through the external thread of the driving rod and then is connected with the inner cylinder component.

Further, the external thread is a trapezoidal thread with a lead angle smaller than 5 degrees; the thread teeth of the trapezoidal thread are asymmetric trapezoidal teeth with straight sides at one side and bevel sides at the other side.

Further, the connecting structure comprises a nut fixed in the inner shaft hole of the inner barrel component, an inner spiral groove which is concavely arranged on the inner peripheral surface of the nut and extends spirally, a mounting rack, a ball and an outer spiral groove which is concavely arranged on the outer circle of the acting section and extends spirally; the mounting frame is sleeved on the outer circle of the acting section, and the nut is connected to the outer circle of the mounting frame; the ball is installed on the mounting frame and is also respectively limited in the inner spiral groove and the outer spiral groove.

Further, the inner cylinder assembly comprises a hollow cylindrical inner mounting cylinder, a bottom plate and a positioning pin for connecting and fixing; the inner mounting cylinder is arranged in an inner shaft hole of the outer cylinder assembly in an axial sliding manner, the upper end of the inner mounting cylinder is inwards recessed to form an inner concave cavity, the sleeve or the nut is arranged in the inner concave cavity, the lower end of the inner mounting cylinder extends out of the lower end of the outer cylinder assembly and then is fixedly provided with a bottom plate, and the bottom plate is used for being fixed with the caster; the locating pin penetrates through the inner mounting cylinder and the corresponding sleeve or nut to lock and fix the inner mounting cylinder and the corresponding sleeve or nut.

Further, the outer circle of the inner cylinder assembly is also provided with a limiting groove which is concave and extends along the axial direction of the inner cylinder assembly; the lifting adjusting device also comprises a stop bar arranged in the limit groove and a connecting bolt for connecting and fixing; the stop bar is positioned in the inner shaft hole of the outer cylinder assembly and is fixed with the outer cylinder assembly through the connecting bolt so as to be used for limiting the upper end of the upper end propping limit groove, and further limiting the downward movement end position of the inner cylinder assembly.

Further, the outer cylinder assembly comprises a hollow cylinder-shaped outer cylinder with a closed upper end, a support bearing arranged in the closed end of the outer cylinder, and a thrust washer for propping against the limit of the connecting structure; the outer cylinder is sleeved on the outer circle of the inner cylinder assembly and is used for being fixed with the frame; the thrust washer is positioned in the inner ring of the supporting bearing and fixedly arranged on the outer circle of the outer extending section of the driving rod, and the thrust washer props against the limit journal.

Further, the lifting adjusting device also comprises an oil filling nozzle fixed on the outer cylinder and a sealing piece arranged between the lower end of the outer cylinder component and the inner cylinder component; the oil filling nozzle extends inwards to the outer ring of the support bearing so as to supply oil to the support bearing and gaps between the inner cylinder assembly and the outer cylinder assembly.

According to another aspect of the present invention, there is also provided a gas turbine carrier vehicle comprising a frame, a plurality of sets of lifting adjustment devices as defined in any one of the above, a plurality of sets of casters; the multiple groups of lifting adjusting devices are connected to multiple positions of the frame in a dispersed manner through outer cylinder assemblies of the lifting adjusting devices; the multiple sets of casters are arranged in one-to-one correspondence with the multiple sets of lifting adjusting devices, and each caster is arranged on the bottom end of the inner cylinder component of the corresponding lifting adjusting device.

The invention has the following beneficial effects:

according to the scheme, through the cooperation of the driving rod group and the connecting structure and the fixing effect of the connecting structure and the inner barrel assembly, the requirements of the light gas turbine on different heights of different working environments in the process of disassembly and assembly and the process of short-distance transportation are further met, the adjustment operation is simple and quick, the working efficiency is greatly improved, the adjustment period is shortened, the wheels are not required to be disassembled and assembled repeatedly in the adjustment operation, and the service life of the device is further prolonged; meanwhile, when in adjustment operation, a single person can operate, the required labor cost and the labor intensity of workers can be effectively reduced, and when carrying objects, the adjustment and use can be performed, so that the working efficiency is not influenced; during the adjustment operation, the inner cylinder assembly can be driven to steplessly lift and self-lock after lifting in place by the rotation of the driving rod group, so that the technical problem that the adjustment is limited by gears and is difficult to realize steplessly adjustment in the prior art is solved, the requirements of emergency task quick-decision can be better met, and the working process is stable and the safety is high; according to the lifting adjusting device, through the inner and outer sleeving arrangement of the inner cylinder component and the outer cylinder component and the inner and outer sleeving arrangement of the driving rod group and the inner cylinder component, the lifting adjusting device is compact in overall structure, small in appearance, and capable of meeting the requirements of small occupied space, strong in stability, convenient to use, convenient to transport and store and the like, and can absorb part of deformation of a frame when being used in a group of four modes in general so as to ensure the moving level of a transport vehicle;

the transport vehicle solves the problem that the light gas turbine has different height requirements on different working environments in the process of disassembly and assembly and the process of short-distance transportation, has simple and quick adjustment operation, can greatly improve the working efficiency, reduces the adjustment period, does not need to disassemble and assemble the wheels repeatedly in the adjustment operation, and further can improve the service life of the device; meanwhile, when in adjustment operation, a single person can operate, the labor cost and the labor intensity of workers can be effectively reduced, the adjustment and the use can be performed when carrying objects, the working efficiency is not affected, the technical problem that the adjustment is limited by gears in the prior art, and the stepless adjustment is difficult to realize is solved, so that the requirement of emergency task quick-decision can be better met, and the working process is stable and high in safety; the transport vehicle has compact overall structure, small and exquisite appearance and stable movement.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 is a schematic cross-sectional front view of an example one of a lift adjustment device according to a preferred embodiment of the present invention;

FIG. 2 is a schematic partial cross-sectional front view of an example II of a lift adjustment device in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic view of an asymmetric trapezoidal thread arrangement.

Description of the drawings

10. An outer barrel assembly; 11. an outer cylinder; 111. an outer mounting cylinder; 112. a cover plate; 113. a set screw; 114. an assembly frame; 115. bearing bush; 12. a support bearing; 13. a thrust washer; 20. an inner barrel assembly; 201. a limit groove; 21. an inner mounting cylinder; 22. a bottom plate; 23. a positioning pin; 30. a drive rod group; 31. a driving rod; 32. a handle; 33. a connecting pin; 40. a connection structure; 41. a sleeve; 42. a nut; 43. a mounting frame; 44. a ball; 50. a stop bar; 60. an oil filling nozzle; 70. a seal; 80. and (5) connecting bolts.

Detailed Description

Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a lifting adjustment device applied to a gas turbine carrier vehicle for transporting a gas turbine, the lifting adjustment device comprising: the device comprises a hollow cylindrical outer cylinder assembly 10 with a closed upper end, a hollow cylindrical inner cylinder assembly 20, a driving rod group 30 for bearing driving and a connecting structure 40 for connecting. The outer cylinder assembly 10 is used for being connected with a frame of a fuel engine transport vehicle, the inner cylinder assembly 20 is axially and slidably arranged in an inner shaft hole of the outer cylinder assembly 10, and the lower end of the inner cylinder assembly 20 extends outwards from the lower end of the outer cylinder assembly 10 to be used for installing casters of the fuel engine transport vehicle. The driving rod group 30 is axially arranged in the inner shaft hole of the inner cylinder assembly 20, the upper end of the driving rod group penetrates through the closed end of the outer cylinder assembly 10 and then extends outwards to form a bearing end, and the driving rod group 30 respectively abuts against two sides of the closed end of the outer cylinder assembly 10 to limit, so that the driving rod group only rotates when the bearing end is stressed. The connecting structure 40 is connected between the driving rod set 30 and the inner cylinder assembly 20, so that the inner cylinder assembly 20 slides up and down along the inner shaft hole of the outer cylinder assembly 10 and is self-locked after sliding in place when the driving rod set 30 rotates under force.

When the lifting adjusting device is used, four groups are usually adopted, the outer cylinder assembly 10 is fixed at four corners of a fuel engine transport vehicle, meanwhile, casters are arranged on the bottom end of the inner cylinder assembly 20, after the installation is finished, the bearing end of the driving rod assembly 30 can be forced according to the use requirement, the driving rod assembly 30 can rotate clockwise or anticlockwise, the driving rod assembly 30 is connected with the inner cylinder assembly 20 through the built-in connecting structure 40, and the inner cylinder assembly 20 can further displace downwards or upwards along the axial direction, so that the aim of height adjustment is achieved.

In the scheme of the invention, through the cooperation of the driving rod group 30 and the connecting structure 40 and the fixing effect of the connecting structure 40 and the inner barrel assembly 20, the different height requirements of the light gas turbine on different working environments in the process of disassembly and assembly and the process of short-distance transportation are further solved, the adjustment operation is simple and quick, the working efficiency is greatly improved, the adjustment period is reduced, the wheel is not required to be disassembled and assembled repeatedly in the adjustment operation, and the service life of the device is further prolonged; meanwhile, when in adjustment operation, a single person can operate, the required labor cost and the labor intensity of workers can be effectively reduced, and when carrying objects, the adjustment and use can be performed, so that the working efficiency is not influenced; during the adjustment operation, the inner cylinder assembly 20 can be driven to steplessly lift and self-lock after lifting in place by the rotation of the driving rod group 30, so that the technical problem that the adjustment is limited by gears and is difficult to realize steplessly adjustment in the prior art is solved, the requirements of emergency task quick-decision can be better met, and the working process is stable and the safety is high; the lifting adjusting device of the invention has compact overall structure and small appearance through the inner and outer nesting arrangement of the inner cylinder component 20 and the outer cylinder component 10 and the driving rod group 30 and the inner and outer nesting arrangement of the inner cylinder component 20, meets the requirements of small occupied space, strong stability, convenient use, convenient transportation and storage and the like, and can absorb part of deformation of the frame when four are used in a group in general so as to ensure the moving level of the transport vehicle.

Alternatively, as shown in fig. 1 and 2, the drive rod group 30 includes a drive rod 31 disposed in the axial direction, a handle 32 for bearing force, and a connection pin 33 for connection fixation. The driving rod 31 comprises an action section and an extending section which are connected along the axial direction, the action section is positioned in the inner shaft hole of the inner cylinder assembly 20 and is connected with the connecting structure 40, the extending section extends outwards upwards through the closed end of the outer cylinder assembly 10, and a limiting shaft neck which is propped against the inner side of the closed end of the outer cylinder assembly 10 to limit the driving rod 31 to slide upwards along the axial direction is formed at the connecting position of the extending section and the action section. The handle 32 is sleeved on the outer circle of the outer extending section and abuts against the outer side of the closed end of the outer cylinder assembly 10 to limit the limit, so that the driving rod 31 is limited to slide downwards along the axial direction under the stress; in this alternative, the handle 32 has a polyhedral non-cylindrical structure, so as to improve the convenience of adjustment operation. The connecting pin 33 penetrates the handle 32 and the outer extension section to fix the handle 32 with the driving rod 31; the connecting pin 33 adopts an elastic pin using mode to replace a welding connection mode between the handle 32 and the driving rod 31, so that the connecting pin is convenient to disassemble, the processing difficulty can be reduced, and the processing cost is saved.

Alternatively, as shown in fig. 1, the connecting structure 40 of the first embodiment of the connecting structure 40 includes a sleeve 41 fixed in the inner shaft hole of the inner cylinder assembly 20, an internal thread provided on the inner circumferential surface of the sleeve 41, and an external thread provided on the outer circle of the acting section. The drive rod 31 is connected to the inner barrel assembly 20 by mating its external threads with the internal threads of the sleeve 41. When the device works, the force application handle 32 enables the driving rod 31 to rotate, and when the driving rod 31 rotates, the sleeve 41 moves up and down relative to the driving rod 31 through the engagement of external threads on the driving rod and internal threads on the sleeve 41, and then the sleeve 41 drives the inner cylinder assembly 20 to slide up and down in an inner shaft hole of the outer cylinder assembly 10 so as to realize height adjustment. In this alternative scheme, in the transportation field of combustion engine, effectively use screw rod and sleeve screw structure cooperation to adjust lift height, the continuity is strong, can adjust the needs height at will.

Preferably, as shown in fig. 1 and 3, the external thread is a trapezoidal thread with a lead angle of less than 5 °. The thread structure is a trapezoid thread, so that the transmission stability of structural force is strong, and the working safety is ensured; the thread lead angle of the trapezoidal thread is smaller than 5 degrees and used for realizing the self-locking function of the trapezoidal thread, so that the device can stably stay in any set height, the need of additionally designing the self-locking device is avoided, the use safety is ensured, and the whole structure is simple, and the design and manufacturing difficulty is reduced. The thread teeth of the trapezoidal thread are asymmetric trapezoidal teeth with straight sides at one side and hypotenuse at the other side; as shown in fig. 3, the thread is optimally arranged into an asymmetric trapezoid, and the asymmetric structure is different from the conventional 30-degree trapezoid thread, so that the torsion resistance is improved, and the tightness is also stronger.

Alternatively, as shown in fig. 2, in the second embodiment of the connection structure 40, the connection structure 40 includes a nut 42 fixed in an inner shaft hole of the inner cylinder assembly 20, an inner spiral groove concavely disposed on an inner circumferential surface of the nut 42 and extending in a spiral manner, a mounting frame 43, a ball 44, and an outer spiral groove concavely disposed on an outer circle of the acting section and extending in a spiral manner. The mounting frame 43 is sleeved on the outer circle of the acting section, and the nut 42 is connected to the outer circle of the mounting frame 43. The balls 44 are mounted on the mounting frame 43 and are also respectively confined in the inner and outer spiral grooves. When the device works, the force application handle 32 enables the driving rod 31 to rotate, and when the driving rod 31 rotates, the nut 42 slides up and down relative to the driving rod 31 through the matching of the balls 44 on the mounting frame 43 with the outer spiral groove on the outer circle of the driving rod 31 and the inner spiral groove in the nut 42, so that the inner cylinder assembly 20 is driven to slide up and down in the inner shaft hole of the outer cylinder assembly 10 to realize height adjustment. In this alternative scheme, in the transportation field of combustion engine, effectively use ball screw class structure to adjust height that goes up and down, the continuity is strong, can adjust the needs height at will, and can auto-lock after reaching required height, guarantees work safety.

Alternatively, as shown in FIG. 1, the inner barrel assembly 20 includes a hollow cylindrical inner mounting barrel 21, a bottom plate 22, and a dowel pin 23 for connection fixation. The inner mounting cylinder 21 is axially and slidably mounted in an inner shaft hole of the outer cylinder assembly 10, an upper end of the inner mounting cylinder 21 is concaved inwards to form an inner concave cavity, a sleeve 41 or a nut 42 is mounted in the inner concave cavity, a lower end of the inner mounting cylinder 21 extends out of a lower end of the outer cylinder assembly 10 and then is fixedly provided with a bottom plate 22, and the bottom plate 22 is used for being fixed with casters. The positioning pin 23 penetrates the inner mounting cylinder 21 and the corresponding sleeve 41 or nut 42 to lock the two. In the alternative scheme, the inner mounting cylinder 21 is welded on the bottom plate 22, the bottom plate 22 is provided with mounting holes penetrating through the plate surface, the mounting holes can be matched according to the positions of the wheel mounting holes used by the gas turbine carrier, and the mounting holes are adaptive to any directional wheels, universal wheels and the like, so that the adaptability is high; in this alternative scheme, pin connection replaces the welding, avoids the welding to lead to structural deformation, reduces the degree of difficulty of manufacturing, installation, and applicable in the demand of speed-up processing in urgent task.

Preferably, as shown in fig. 1, the outer circle of the inner cylinder assembly 20 is further provided with a limiting groove 201 which is concave and extends along the axial direction thereof. The lifting adjusting device further comprises a stop bar 50 arranged in the limiting groove 201 and a connecting bolt 80 for connecting and fixing. The stop bar 50 is located in the inner shaft hole of the outer cylinder assembly 10 and is fixed with the outer cylinder assembly 10 through the connecting bolt 80, so that the upper end of the stop bar abuts against the upper end of the limiting groove 201 to limit the downward movement end position of the inner cylinder assembly 20. In the preferred scheme, compared with the anti-drop stop structure with the stop bar matched with the limit groove, compared with the direct use of the screw for limit stop, the surface contact of the limit groove 201 and the stop bar 50 ensures that the stop is stable, more accurate and safer.

Alternatively, as shown in fig. 1, the outer cylinder assembly 10 includes a hollow cylindrical outer cylinder 11 with an upper end closed, a support bearing 12 installed in the closed end of the outer cylinder 11, and a thrust washer 13 for abutting against the limit of the connection structure 40. The outer cylinder 11 is sleeved on the outer circle of the inner cylinder assembly 20 and is used for being fixed with the frame. The thrust washer 13 is located in the inner ring of the support bearing 12 and is fixedly mounted on the outer circumference of the outer section of the drive rod 31, and the thrust washer 13 abuts against the limit journal. In the alternative scheme, the support bearing 12 adopts a thrust ball bearing structure, and when the driving rod 31 drives the inner ring of the support bearing 12 to rotate through the thrust washer 13, the friction coefficient is reduced by utilizing the thrust ball bearing structure in the rotating process, so that the stepless adjustment of the height of the fuel engine carrier vehicle in carrying objects is realized; the thrust washer 13 is used to abut against the upper end of the sleeve 41 or the nut 42, so as to limit the upper limit of the upward movement of the inner cylinder assembly 20, and effectively prevent the sleeve 41 and the nut 42 from rigidly colliding with the outer cylinder assembly 10.

In this alternative, as shown in fig. 1, the outer cylinder 11 includes a hollow cylindrical outer mounting cylinder 111, a cover plate 112 provided at an upper end of the outer mounting cylinder 111 to close an upper opening end thereof, a set screw 113 for fixing both the outer mounting cylinder 111 and the cover plate 112, and a plurality of mounting brackets 114 sequentially fitted on an outer circumference of the outer mounting cylinder 111. The outer mounting cylinder 111 is sleeved outside the inner mounting cylinder 21; the cover plate 112 is provided with a shaft hole through which the driving rod 31 passes, the support bearing 12 is arranged in the shaft hole, and the joint of the shaft hole and the driving rod 31 is also provided with a wear-resistant bearing bush 115. In this alternative, the mounting bracket 114 is provided with a plurality of threaded holes extending through the plate surface for connection to the frame of the gas turbine truck.

Preferably, as shown in fig. 1, the elevation adjustment apparatus further includes a grease nipple 60 fixed to the outer tub 11, and a sealing member 70 installed between the lower end of the outer tub assembly 10 and the inner tub assembly 20. The grease nipple 60 extends inwardly to the outer race of the support bearing 12 for providing grease to the support bearing 12 and the gap between the inner barrel assembly 20 and the outer barrel assembly 10. In the preferred scheme, as shown in fig. 1, a special oil filling nozzle 60 is matched and arranged, and lubricating oil can be filled into gaps among the support bearing 12, the inner cylinder assembly 20 and the outer cylinder assembly 10 through the special oil filling nozzle, so that the service life of the device is prolonged; the seal 70 is an O-ring seal for preventing oil leakage at the gap between the inner barrel assembly 20 and the outer barrel assembly 10. Before use, lubricating oil is introduced into the device through the oil nozzle 60, so that the support bearing 12 is convenient to use.

Preferably, the device is a steel structural member, and the steel structural member has compact integral structure, small and exquisite appearance, strong stability and convenient use.

Referring to fig. 1-3, the preferred embodiment of the present invention also provides a gas turbine transport vehicle comprising a frame, a plurality of sets of lift adjustment devices as described above, and a plurality of sets of casters. The multiple sets of lifting adjusting devices are connected to multiple positions of the frame in a dispersed manner through the outer cylinder assembly 10. The multiple sets of casters are arranged in one-to-one correspondence with the multiple sets of lifting adjusting devices, and each caster is arranged on the bottom end of the inner cylinder assembly 20 of the corresponding lifting adjusting device. The gas turbine transport vehicle comprises a plurality of groups of lifting adjusting devices according to any one of the above, so that the gas turbine transport vehicle solves the different height requirements of the light gas turbine on different working environments in the process of disassembly and assembly and the process of short-distance transportation, has simple and quick adjusting operation, can greatly improve the working efficiency, reduces the adjusting period, does not need to disassemble and assemble the wheels repeatedly in the adjusting operation, and further can further improve the service life of the device; meanwhile, when in adjustment operation, a single person can operate, the labor cost and the labor intensity of workers can be effectively reduced, the adjustment and the use can be performed when carrying objects, the working efficiency is not affected, the technical problem that the adjustment is limited by gears in the prior art, and the stepless adjustment is difficult to realize is solved, so that the requirement of emergency task quick-decision can be better met, and the working process is stable and high in safety; the transport vehicle has compact overall structure, small and exquisite appearance and stable movement.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting adjustment device for use with a gas turbine vehicle for transporting a gas turbine, the lifting adjustment device comprising:

the device comprises a hollow cylindrical outer cylinder assembly (10) with a closed upper end, a hollow cylindrical inner cylinder assembly (20), a driving rod group (30) for bearing driving and a connecting structure (40) for connecting;

the outer cylinder assembly (10) is used for being connected with a frame of the gas turbine carrier, the inner cylinder assembly (20) is arranged in an inner shaft hole of the outer cylinder assembly (10) in an axial sliding mode, and the lower end of the inner cylinder assembly (20) extends outwards from the lower end of the outer cylinder assembly (10) to be used for installing casters of the gas turbine carrier;

the driving rod group (30) is axially arranged in an inner shaft hole of the inner cylinder assembly (20), the upper end of the driving rod group penetrates through the closed end of the outer cylinder assembly (10) and then extends outwards to form a bearing end, and the driving rod group (30) respectively abuts against two sides of the closed end of the outer cylinder assembly (10) to limit, so that the driving rod group only rotates when the bearing end is stressed;

the connecting structure (40) is connected between the driving rod group (30) and the inner cylinder assembly (20) and is used for enabling the inner cylinder assembly (20) to slide up and down along the inner shaft hole of the outer cylinder assembly (10) and to slide in place and then self-lock when the driving rod group (30) rotates under force.

2. The lifting and lowering adjusting device according to claim 1, wherein,

the driving rod group (30) comprises a driving rod (31) arranged along the axial direction, a handle (32) used for bearing force and a connecting pin (33) used for connecting and fixing;

the driving rod (31) comprises an action section and an overhanging section which are connected along the axial direction, the action section is positioned in an inner shaft hole of the inner cylinder assembly (20) and is connected with the connecting structure (40), the overhanging section upwards penetrates through the closed end of the outer cylinder assembly (10) and then overhangs, and a limiting shaft neck which is propped against the inner side of the closed end of the outer cylinder assembly (10) is formed at the connecting position of the overhanging section and the action section;

the handle (32) is sleeved on the outer circle of the outer extending section and abuts against the outer side of the closed end of the outer cylinder assembly (10) to limit;

the connecting pin (33) penetrates the handle (32) and the outer extension section to fix the handle (32) and the driving rod (31).

3. The lifting and lowering adjusting device according to claim 2, wherein,

the connecting structure (40) comprises a sleeve (41) fixed in the inner shaft hole of the inner barrel assembly (20), and an internal thread arranged on the inner peripheral surface of the sleeve (41) and an external thread arranged on the outer circle of the acting section;

the driving rod (31) is connected with the inner cylinder assembly (20) through the matching of the external screw thread and the internal screw thread of the sleeve (41).

4. A lifting and lowering adjusting device as claimed in claim 3, wherein,

the external thread is a trapezoidal thread with a lead angle smaller than 5 degrees;

the thread teeth of the trapezoidal thread are asymmetric trapezoidal teeth with straight sides at one side and bevel sides at the other side.

5. The lifting and lowering adjusting device according to claim 2, wherein,

the connecting structure (40) comprises a nut (42) fixed in an inner shaft hole of the inner barrel assembly (20), an inner spiral groove which is concavely arranged on the inner peripheral surface of the nut (42) and extends spirally, a mounting rack (43), a ball (44) and an outer spiral groove which is concavely arranged on the outer circle of the acting section and extends spirally;

the mounting frame (43) is sleeved on the outer circle of the acting section, and the nut (42) is connected on the outer circle of the mounting frame (43);

the balls (44) are mounted on the mounting frame (43) and are also respectively confined in the inner and outer spiral grooves.

6. The lifting and lowering adjusting device according to any one of claims 3 or 5,

the inner cylinder assembly (20) comprises a hollow cylindrical inner mounting cylinder (21), a bottom plate (22) and a positioning pin (23) which plays a role in connection and fixation;

the inner mounting cylinder (21) is arranged in an inner shaft hole of the outer cylinder assembly (10) in an axial sliding manner, the upper end of the inner mounting cylinder (21) is concaved inwards to form an inner concave cavity, the sleeve (41) or the nut (42) is arranged in the inner concave cavity, the lower end of the inner mounting cylinder (21) extends out of the lower end of the outer cylinder assembly (10) and then is fixedly provided with the bottom plate (22), and the bottom plate (22) is used for being fixed with the caster;

the locating pin (23) penetrates through the inner mounting cylinder (21) and the corresponding sleeve (41) or nut (42) to lock and fix the inner mounting cylinder and the corresponding sleeve.

7. The lifting and lowering adjusting device according to claim 1, wherein,

the outer circle of the inner cylinder assembly (20) is also provided with a limiting groove (201) which is concave and extends along the axial direction of the limiting groove;

the lifting adjusting device also comprises a stop bar (50) arranged in the limit groove (201) and a connecting bolt (80) which plays a role in connection and fixation;

the stop strip (50) is positioned in the inner shaft hole of the outer cylinder assembly (10) and is fixed with the outer cylinder assembly (10) through the connecting bolt (80) so as to be used for limiting the upper end of the upper end propping limiting groove (201), and further limiting the downward movement end position of the inner cylinder assembly (20).

8. The lifting and lowering adjusting device according to claim 2, wherein,

the outer cylinder assembly (10) comprises a hollow cylinder-shaped outer cylinder (11) with a closed upper end, a supporting bearing (12) arranged in the closed end of the outer cylinder (11), and a thrust washer (13) used for propping against the limit of the connecting structure (40);

the outer cylinder (11) is sleeved on the outer circle of the inner cylinder assembly (20) and is used for being fixed with the frame;

the thrust washer (13) is positioned in the inner ring of the support bearing (12) and fixedly arranged on the outer circle of the outer extension section of the driving rod (31), and the thrust washer (13) abuts against the limit journal.

9. The lifting and lowering adjusting device according to claim 8, wherein,

the lifting adjusting device also comprises an oil filling nozzle (60) fixed on the outer cylinder (11), and a sealing piece (70) arranged between the lower end of the outer cylinder assembly (10) and the inner cylinder assembly (20);

the grease nipple (60) extends inwardly to the outer race of the support bearing (12) for providing grease to the support bearing (12) and the gap between the inner barrel assembly (20) and the outer barrel assembly (10).

10. A gas turbine carrier vehicle comprising a frame, a plurality of sets of lifting and adjusting devices according to any one of claims 1-9, and a plurality of sets of casters;

the lifting adjusting devices are connected to a plurality of positions of the frame in a dispersed manner through outer cylinder assemblies (10) of the lifting adjusting devices;

the plurality of sets of casters are arranged in one-to-one correspondence with the plurality of sets of lifting adjusting devices, and each caster is arranged on the bottom end of the inner cylinder assembly (20) of the corresponding lifting adjusting device.