CN108643156B - Round pile leg gear rack lifting platform - Google Patents
Round pile leg gear rack lifting platform Download PDFInfo
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- CN108643156B CN108643156B CN201810652753.9A CN201810652753A CN108643156B CN 108643156 B CN108643156 B CN 108643156B CN 201810652753 A CN201810652753 A CN 201810652753A CN 108643156 B CN108643156 B CN 108643156B
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- 230000007246 mechanism Effects 0.000 claims abstract description 99
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009194 climbing Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to the field of ocean engineering equipment, in particular to a round pile leg gear rack lifting platform, which comprises a lifting support frame fixedly connected with the lifting platform, a rack fixedly arranged on a pile leg, a gear and a gear driving motor arranged on the lifting support frame, wherein the gear of the lifting mechanism is meshed with the rack to realize lifting of the lifting platform along the pile leg; the locking mechanism comprises a locking support frame fixedly connected with the lifting platform, a bolt hole arranged on the pile leg and a locking bolt arranged on the locking support frame, wherein the locking bolt of the locking mechanism is inserted into the bolt hole to lock and stop the lifting platform. The round spud leg gear rack lifting platform provided by the invention has good continuous lifting effect, small spud leg volume, high stability and high control precision, and is suitable for the environments of offshore culture living platforms, sightseeing tour, leisure fishing and the like.
Description
Technical Field
The invention relates to the field of ocean engineering equipment, in particular to a round pile leg gear rack lifting platform.
Background
With the increase of the demand for ocean resources, the ocean engineering equipment is taken as a carrier for developing ocean resources, and the demand quantity of the ocean engineering equipment is increased, wherein the self-elevating ocean lifting platform is important ocean engineering equipment. Currently, most manufacturers of self-elevating type lifting platforms for open sea operation adopt truss type gear rack lifting platforms; for offshore operation, most manufacturers use circular pile leg bolt jack-up type lifting platforms. Along with the upgrade of people's consumption level, need a kind of lift platform that can go up and down in succession, control accuracy is high, stability is good, and the spud leg is small and can use offshore.
The lifting platforms of different marine environments are also different in structure. The invention patent application publication specification CN2015110703380. X of China discloses an ocean platform lifting system and an ocean platform, the mechanism is a truss type gear rack lifting platform, a triangular truss is adopted as a pile leg by a lifting mechanism of the platform, racks and gears fixed on three sides of the triangular truss are meshed with each other to drive the platform to lift, the pile leg of the structure occupies too large volume, the stress of a motor output shaft is complex, the manufacturing cost is high, the offshore ocean cultivation and leisure industry is not suitable, the pile leg of the platform is too large, the manufacturing cost is high, the continuous stress of the racks and the stress of the gear output shaft are complex; the Chinese patent application publication CN201410272576.3 discloses a hydraulic bolt lifting system of a self-elevating ocean platform, wherein bolt holes are formed in pile legs of the lifting platform, and a movable ring beam and a fixed ring beam which encircle the pile legs are mutually matched to perform telescopic movement through a hydraulic oil cylinder, so that the lifting and descending of the whole platform are driven. The lifting process of the platform lifting mechanism needs to be carried out by means of the expansion and contraction of the hydraulic oil cylinder, the lifting process is continuous in stages, a complete continuous lifting process cannot be formed, and the lifting process can be influenced when the bolt holes at the pile legs are not in the same plane, so that the lifting of the hydraulic bolt type lifting platform is discontinuous and the fine adjustment effect is poor. In order to adapt to offshore environment and upgrade and transform specific products, an ocean lifting platform which can continuously lift, is small in pile leg size, good in stability and high in control precision needs to be designed.
Disclosure of Invention
The invention aims to overcome at least one defect in the prior art, and provides a round spud leg gear rack lifting platform which has good continuous lifting effect, small spud leg size, high stability and high control precision, and is suitable for the environments of offshore culture living platforms, sightseeing tour, leisure fishing and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the round pile leg gear rack lifting platform comprises pile legs, a lifting platform and a lifting mechanism, wherein the lifting platform is in lifting connection with the pile legs through the lifting mechanism, the lifting mechanism comprises a lifting support frame fixedly connected with the lifting platform, a rack fixedly installed on the pile legs, a gear and a gear driving motor arranged on the lifting support frame, and the gear of the lifting mechanism is meshed with the rack to realize lifting of the lifting platform along the pile legs; the locking mechanism comprises a locking support frame fixedly connected with the lifting platform, a bolt hole arranged on the pile leg and a locking bolt arranged on the locking support frame, wherein the locking bolt of the locking mechanism is inserted into the bolt hole to lock and stop the lifting platform.
The lifting mechanism drives a gear arranged on the lifting support frame to rotate through a gear driving motor, the gear is meshed with a rack arranged on the pile leg to realize the lifting and the descending of the lifting support frame, and meanwhile, a lifting platform fixedly connected with the lifting support frame is driven to realize the lifting along the pile leg; in addition, when the lifting platform ascends or descends to a preset height position, the locking bolt of the locking mechanism is inserted into the bolt hole formed in the pile leg, so that locking and stopping of the lifting platform are realized. The lifting platform is lifted by adopting the engagement of the motor driving gear and the rack, so that the lifting continuity requirement of the lifting platform is ensured, and the stability of the lifting platform in the lifting process is improved; meanwhile, the locking bolt is inserted into the bolt hole to realize locking of the lifting platform, so that the gear rack is not stressed when the lifting platform is locked, and the safety and stability of the lifting mechanism are improved.
Preferably, the lifting mechanism comprises two lifting support frames which are oppositely arranged at two sides of the pile leg; the lifting support frame comprises a frame body and lifting channel plates arranged at two ends of the frame body; the lifting channel plate of one lifting support frame and the lifting channel plate of the other opposite lifting support frame form a lifting channel, the rack is arranged in the lifting channel, and the gears are arranged on the lifting channel plates at two sides of the lifting channel plate. The gear is arranged on the lifting support frame, so that the gear is prevented from being stressed complicated.
Preferably, the lifting mechanism is provided with a plurality of limit bolts connected with lifting channel plates at two sides of the lifting channel, and the limit bolts are arranged in parallel with the gears. A plurality of limit bolts are used for connecting lifting channel plates on two sides of a lifting channel, a plurality of limit bolts are used for limiting the space size consistency of the lifting channel in the vertical direction, the structural stability of the climbing mechanism is improved, and the meshing continuous stability of an inner gear and a rack of the lifting channel is ensured.
Preferably, the lifting device further comprises guide mechanisms arranged on two sides of the rack, and the guide mechanisms are arranged on lifting channel plates on two sides of the lifting channel; the guide mechanism is a plurality of rollers which are oppositely arranged, and the rollers are in tangential contact with the side wall of the rack. The rollers on two sides of the rack are connected with the side wall of the rack in a low way, so that the climbing support frame is prevented from rotating and deviating relative to the pile leg in the lifting process, and the climbing stability requirement of the climbing mechanism is ensured.
Preferably, the locking mechanism comprises a fine adjustment mechanism, wherein the fine adjustment mechanism comprises a lifting screw rod and a lifting screw rod driving mechanism which are arranged on the locking support frame, and further comprises a locking bolt sliding mechanism which is movably sleeved on the lifting screw rod; the locking bolt is arranged on the locking bolt sliding mechanism; the lifting screw driving mechanism drives the lifting screw to rotate so as to adjust the lifting of the locking bolt sliding mechanism, so that the lifting fine adjustment of the locking bolt is realized. The lifting screw driving mechanism drives the lifting screw to rotate so that the locking bolt sliding mechanism sleeved on the lifting screw ascends and descends along the lifting screw, and meanwhile, the lifting fine adjustment of the locking bolt is driven to accurately control the locking height position of the lifting platform.
Preferably, the locking mechanism comprises two locking support frames, the two locking support frames are respectively connected with two frame bodies, the locking support frames are provided with first sliding grooves, and the frame bodies are provided with second sliding grooves matched with the first sliding grooves 701; the locking bolt sequentially passes through the first sliding groove and the second sliding groove to be inserted into the bolt hole, so that the locking and stopping of the lifting platform are realized. When the fine adjustment screw rod adjusts the locking bolt sliding mechanism to a locking position, the locking bolt arranged on the locking bolt sliding mechanism sequentially penetrates through the first sliding groove and the second sliding groove and then is inserted into the bolt hole, so that locking and stopping of the lifting platform are realized.
Preferably, each locking support frame is provided with a lifting screw; the lifting screw driving mechanism comprises a lifting screw driving motor arranged on the locking support frame, a chain wheel and a chain arranged on the motor and the lifting screw, and the motor drives each lifting screw to synchronously rotate through chain and chain wheel transmission. The synchronous rotation of each lifting screw is driven through chain sprocket transmission, so that the locking bolt sliding mechanism arranged on the lifting screw synchronously ascends and descends, and the accurate control requirement of the locking mechanism and the reliability requirement of the locking mechanism are ensured.
Preferably, the locking bolt sliding mechanism comprises a locking slide block movably sleeved on the lifting screw rod and a locking bolt supporting frame fixedly connected with the locking slide block; the locking bolt is movably arranged in the locking bolt supporting frame.
Preferably, the locking mechanism further comprises a transmission screw movably connected with the locking bolt and a transmission screw driving motor for driving the transmission screw, and the transmission screw driving motor is used for adjusting the insertion and the pulling-out of the locking bolt through driving the transmission screw to rotate, so that the locking and unlocking of the lifting platform are realized. The driving screw is adopted to drive the motor to drive and adjust the insertion bolt seat of the locking bolt and the pulling out of the bolt seat, so that the locking and unlocking of the lifting platform are realized, and the mechanical automatic control is safe and efficient.
Preferably, the lifting platform is provided with four piles. The four spud legs are adopted to simultaneously support the lifting platform in a linkage manner, the spud legs are small in size and high in stress stability, and the locking height of each spud leg can be adjusted according to the ocean plane so as to meet the requirement of stable operation of the ocean platform.
Compared with the prior art, the beneficial effects are that:
(1) Compared with the traditional truss type gear rack lifting platform, the invention adopts the pile leg with smaller volume to replace the triangular truss type pile leg, and simultaneously, the gear is arranged on the climbing support frame fixedly connected with the lifting platform, so that the safety and the reliability of the gear stress are ensured; meanwhile, the locking bolt is matched with the bolt hole to realize the locking of the lifting platform, so that the forced engagement of the gear and the rack during locking and stopping is avoided, and the safety and stability of the lifting mechanism are improved;
(2) Compared with the traditional hydraulic drive lifting system, the lifting platform is lifted and lowered by adopting the motor to drive the gear rack to be meshed, so that the lifting continuity and stability requirements of the lifting platform are ensured;
(3) The locking mechanism is provided with the fine adjustment mechanism, and the fine adjustment mechanism is used for adjusting the height position of the locking bolt relative to the spud leg, so that the accurate control of the locking height position of the lifting platform is ensured; meanwhile, the synchronous rotation of each fine adjustment screw is controlled by utilizing chain and sprocket transmission, so that the synchronous control precision of the fine adjustment mechanism is improved;
(4) According to the invention, the guide mechanisms are arranged at two sides of the lifting channel, the contact between the rollers at two sides and the side wall of the rack is utilized, the positioning of the climbing support frame and the pile leg is realized by utilizing the contact between the rack and the rollers, the climbing support frame is prevented from rotating or deviating relative to the pile leg, and the climbing stability of the climbing mechanism is improved and ensured; meanwhile, a plurality of limit bolts connected with two sides of the lifting channel are utilized to ensure the consistency of the space size of the lifting channel in the vertical direction, so that the structural stability of the climbing mechanism is improved;
(5) The lifting platform is provided with four spud legs, and the locking height of the climbing support frame on each spud leg can be adjusted according to the ocean plane, so that the climbing support frame of each spud leg is locked and stopped at different height positions of the spud leg, the locking and stopping state of the lifting platform is further adapted to the ocean plane requirement, and the stable operation requirement is met.
Drawings
Fig. 1 is a perspective view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a schematic view of a climbing support and a locking support according to the present invention.
Fig. 4 is a schematic view of the locking state of the present invention.
Fig. 5 is a schematic view of the locking bolt of the present invention.
Fig. 6 is a schematic view of the entire lifting platform of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
As shown in fig. 1 and 2, the round pile leg gear rack lifting platform comprises a pile leg 4, a lifting platform 3 and a lifting mechanism 1, wherein the lifting platform 3 is in lifting connection with the pile leg 4 through the lifting mechanism 1, the lifting mechanism 1 comprises a lifting support frame 11 fixedly connected with the lifting platform 3, a rack 6 fixedly mounted on the pile leg 4, a gear 5 arranged on the lifting support frame 11 and a gear driving motor 51, and the gear 5 of the lifting mechanism 1 is meshed with the rack 6 to realize lifting of the lifting platform 3 along the pile leg 4; the locking mechanism 2 comprises a locking support frame 21 fixedly connected with the lifting platform 3, a bolt hole 7 formed in the pile leg 4 and a locking bolt 8 arranged on the locking support frame 21, wherein the locking bolt 8 of the locking mechanism 2 is inserted into the bolt hole 7 to lock and stop the lifting platform 3. The lifting support frame 21 is welded and fixed on the lifting platform 3, the locking support frame 21 is welded and fixed on the lifting platform, the rack is integrally connected with the spud leg, the gear is arranged on the climbing support frame through a bearing, the gear driving motor 3 is connected with the gear 5, the lifting support frame 11 is driven to lift relative to the spud leg 4 through the meshing transmission of the gear 5 and the rack 6, and then the lifting platform 3 is driven to lift relative to the spud leg 4; the locking support frame 21 is movably provided with a locking bolt 8, the pile leg 4 is provided with a bolt hole 7, and the locking of the lifting platform 3 is realized by inserting the locking bolt 8 into the bolt hole 7.
The lifting mechanism 1 comprises two lifting support frames 11, and the two lifting support frames 11 are oppositely arranged on two sides of the pile leg 4; the lifting support frame 11 comprises a frame body 112 and lifting channel plates 111 arranged at two ends of the frame body 112; the lifting channel plate 111 of one lifting support frame 11 and the lifting channel plate 111 of the other opposite lifting support frame 11 form a lifting channel 10, the rack 6 is arranged in the lifting channel 10, and the gears 5 are arranged on the lifting channel plates 111 at two sides of the lifting channel 10. The two lifting support frames 11 are oppositely arranged at two sides of the pile leg 4, meanwhile, the lifting passage plate 111 of one lifting support frame 11 is parallel and opposite to the lifting passage plate 111 of the other lifting support frame 11 to form a lifting passage 10 for meshing the gear 5 with the rack 6, and the lifting passage plates 111 of the two lifting support frames 11 form a pair of oppositely arranged lifting passages 10; meanwhile, the gear 5 is installed on bearings of the elevating channel plates 111 at both sides of the elevating channel 10 through a gear installation shaft.
Wherein, the lifting mechanism 1 is provided with a plurality of limit bolts 12 connected with lifting channel plates 111 on two sides of the lifting channel 10, and the limit bolts 12 are arranged in parallel with the gear 5. The limit bolts 12 are installed in bolt installation holes of the lifting channel plates 111 at two sides of the lifting channel 10, in this embodiment, three limit bolts 12 are installed at the top and the bottom of the lifting channel 10 respectively, and the number of corresponding limit bolts 12 can be increased or decreased according to the channel length of the actual lifting channel 10, and the space size consistency of the lifting channel 10 in the vertical direction of the lifting channel 10 is defined by a plurality of limit bolts 12.
Wherein, the lifting device also comprises guide mechanisms arranged at two sides of the rack 6, and the guide mechanisms are arranged on lifting channel plates 111 at two sides of the lifting channel 10; the guide mechanism is a plurality of rollers 9 which are oppositely arranged, and the rollers 9 are in tangential contact with the side wall of the rack 6. The roller 9 is mounted to a roller bearing in a roller support base through a roller shaft, and the roller support base is fixedly mounted to the elevation channel plate 111 using a fixing nut. In this embodiment, three pairs of rollers 9 are respectively arranged at the top and the bottom of the lifting channel 10, as shown in fig. 2, the climbing support frame 11 can only move in the vertical direction along the vertical rack 6 by tangential contact between the rollers 9 at two sides of the rack 6 and the side wall of the rack 6, so that the climbing support frame 11 is prevented from rotating and shifting relative to the spud leg 4, and the climbing stability requirement of the climbing mechanism 1 is ensured.
In addition, the locking mechanism 2 comprises a fine tuning mechanism, wherein the fine tuning mechanism comprises a lifting screw 22 and a lifting screw driving mechanism which are arranged on the locking support frame 21, and also comprises a locking bolt sliding mechanism which is movably sleeved on the lifting screw 22; the locking bolt 8 is arranged on the locking bolt sliding mechanism; the lifting screw driving mechanism drives the lifting screw 22 to rotate so as to adjust the lifting of the locking bolt sliding mechanism, thereby realizing the lifting fine adjustment of the locking bolt 8. The locking support frame 21 comprises a slotting main body, the slotting main body comprises two side walls and a main board for connecting the two side walls, the top and the bottom of each side wall are respectively provided with a screw upper base 221 and a screw lower base 222 which are opposite, namely a pair of lifting screws 22 are oppositely arranged on the single locking support frame 21; each lifting screw 22 is mounted between a screw upper base 221 and a screw lower base 222 through an angular contact bearing; the locking bolt sliding mechanism is movably sleeved on the lifting screw rod 22, the locking bolt 8 is movably mounted on the locking bolt sliding mechanism, and the lifting screw rod 22 rotates to drive the locking bolt sliding mechanism to ascend and descend along the lifting screw rod 22, so that the locking bolt 8 is driven to ascend and descend, and the lifting platform 3 is locked at different height positions of the pile leg 4.
As shown in fig. 3, the locking mechanism 2 includes two locking support frames 21, the two locking support frames 21 are respectively connected with two frame bodies 112, the locking support frames 21 are provided with a first sliding groove 210, and the frame bodies 112 are provided with a second sliding groove 110 matched with the first sliding groove 210; the locking bolts 8 sequentially pass through the first sliding grooves 210 and the second sliding grooves 110 and are inserted into the bolt holes 7, so that locking and stopping of the lifting platform 3 are realized. The two locking support frames 21 of the locking mechanism 2 are respectively welded and fixed on the frame body 112 of the climbing support frame 11, meanwhile, the main board of the slotting main body is provided with a first sliding groove 210, the frame body 112 is provided with a second sliding groove 110 matched with the first sliding groove 210, and the locking bolt 8 movably installed on the locking bolt sliding mechanism sequentially penetrates through the first sliding groove 210 and the second sliding groove 110 and then is inserted into the bolt hole 7 of the pile leg 4, so that the locking and stopping of the lifting platform 3 are realized.
Wherein, a pair of lifting screws 22 are arranged on each locking support frame 2; the lifting screw driving mechanism comprises a lifting screw driving motor 23 arranged on the locking support frame 21, a chain wheel 24 arranged on the motor 23 and the lifting screw 22 and a chain, wherein the motor 23 drives each lifting screw 22 to synchronously rotate through the transmission of the chain wheel 24 of the chain 25. In this embodiment, a pair of lifting screws 22 on each locking support frame 21 are respectively installed on two side walls of the slotting main body, two locking support frames 21 are provided with four lifting screws 22 in total, a motor 23 is installed at the top of each locking support frame 21, chain wheels 24 on the same plane are installed at the top of each lifting screw 22 and the motor 23 drives the lifting screws 22 to synchronously rotate through chain 25 and chain wheels 24.
The locking bolt sliding mechanism comprises a locking slide block 26 movably sleeved on the lifting screw 22 and a locking bolt supporting frame 27 fixedly connected with the locking slide block 26; the locking bolt 8 is movably mounted in the locking bolt supporting frame 27, the locking slide block 26 comprises a locking slide block main body and sleeves integrally connected with the locking slide block main body, and the number of the sleeves in the embodiment comprises two groups which are respectively arranged at the top and the bottom of the locking slide block main body; each group comprises two sleeves which are respectively and movably sleeved on the pair of lifting screws 22, as shown in fig. 4. The locking slider main body on welded fastening have with two sets of locking bolt support frames 27 that correspond respectively of two sets of sleeves, all movable mounting has locking bolt 8 in each locking bolt support frame 27, drive the rising and the decline of locking slider 26 through the rotation of fine setting screw 22 to the realization that installs in locking bolt support frame 27 rises with the regulation of decline, finely tune locking bolt 8 to the high position that needs the lock to stop, then insert locking bolt 8 in the bolt hole 7 of corresponding height, realize the lock of lift platform 3 and stop.
The locking mechanism 2 further comprises a transmission screw 80 movably connected with the locking bolt 8 and a transmission screw driving motor for driving the transmission screw 80, and the transmission screw driving motor is used for adjusting the insertion and the pulling-out of the locking bolt 8 through driving the transmission screw 80 to realize the locking and unlocking of the lifting platform 3. The locking bolt 8 is provided with a threaded hole matched with the driving screw rod 22, the driving screw rod 8 penetrates through the locking bolt supporting frame 27 to be movably connected with the locking bolt 8 in a threaded manner, and the driving screw rod drives the motor to drive the driving screw rod 22 to rotate so as to unscrew or rotate the locking bolt 8 along the driving screw rod 80; the unscrewed locking pin 8 is inserted into the pin hole 7 through the above-described first and second sliding grooves 210 and 110 in sequence.
In addition, the lifting platform 3 is provided with four pile legs 4. The pile legs 4 are cylindrical, the four pile legs 4 are respectively arranged at four corners of the lifting platform 3, as shown in fig. 6, the four pile legs 4 are adopted to simultaneously support the lifting of the lifting platform 3 in a linkage manner, the required pile legs 4 are small in size and high in stress stability, the lifting platform 3 is welded and fixed on climbing support frames of the pile legs 4, in addition, a truss 31 for supporting the lifting platform 3 is welded and fixed between the climbing support frames 21, and the operation stability of the table top of the lifting platform 3 is improved; meanwhile, the locking height of each pile leg can be adjusted according to the ocean plane condition, so that the platform 3 can be lifted to meet the requirement of stable operation of the ocean platform.
According to the round pile leg gear rack lifting platform, when the position of the lifting platform 3 is required to be lifted, the gear driving motor 51 of each pile leg 4 is controlled to be started simultaneously, the gear driving motor 51 drives the gear 5 to be meshed with the rack 6 of the pile leg 4 to drive the lifting platform 3 connected with each climbing support frame 21 to lift, when the lifting platform 3 reaches a preset working height, the lifting screw driving motor 23 of each pile leg 4 is controlled to be started, the lifting screw driving motor 23 synchronously drives each lifting screw 22 of each pile leg 4 to rotate, the height fine adjustment of a locking slide block main body movably sleeved on the lifting screw 22 is realized, when the locking bolt 8 is regulated to a position matched with the bolt hole 7, the transmission screw driving motor is controlled to be started, the transmission screw driving motor drives the transmission screw 80 to rotate, so that the locking bolt 8 axially rotates along the transmission screw 80 and sequentially penetrates through the first sliding groove 210 and the second sliding groove 110 to be inserted into the corresponding bolt hole 7, and the lifting platform 3 is customized and stopped stably; when the height of the lifting platform 3 needs to be readjusted, the driving screw driving motor drives the driving screw 80 to reversely rotate, the locking bolt 8 axially rotates along the driving screw 80, and then the gear driving motor 51 drives the gear 5 to be meshed with the rack 6 to continuously drive the lifting platform 3 to ascend or descend.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The utility model provides a circle spud leg rack and pinion lift platform, includes spud leg (4), lift platform (3) and elevating system (1), and lift platform (3) are connected its characterized in that with spud leg (4) go up and down through elevating system (1): the lifting mechanism (1) comprises a lifting support frame (11) fixedly connected with the lifting platform (3), a rack (6) fixedly arranged on the pile leg (4), a gear (5) arranged on the lifting support frame (11) and a gear driving motor (51), and the gear (5) of the lifting mechanism (1) is meshed with the rack (6) to realize lifting of the lifting platform (3) along the pile leg (4); the locking mechanism (2) comprises a locking support frame (21) fixedly connected with the lifting platform (3), a bolt hole (7) formed in the pile leg (4) and a locking bolt (8) mounted on the locking support frame (21), and the locking bolt (8) of the locking mechanism (2) is inserted into the bolt hole (7) to lock and stop the lifting platform (3);
the locking mechanism (2) comprises a fine adjustment mechanism, wherein the fine adjustment mechanism comprises a lifting screw (22) and a lifting screw driving mechanism which are arranged on a locking support frame (21), and also comprises a locking bolt sliding mechanism which is movably sleeved on the lifting screw (22); the locking bolt (8) is arranged on the locking bolt sliding mechanism; the lifting screw driving mechanism drives the lifting screw (22) to rotate so as to adjust the lifting of the locking bolt sliding mechanism, thereby realizing the lifting fine adjustment of the locking bolt (8);
the lifting mechanism (1) comprises two lifting support frames (11), and the two lifting support frames (11) are oppositely arranged at two sides of the pile leg (4); the lifting support frame (11) comprises a frame body (112) and lifting channel plates (111) arranged at two ends of the frame body (112); the lifting channel plate (111) of one lifting support frame (11) and the lifting channel plate (111) of the other opposite lifting support frame (11) form a lifting channel (10), the rack (6) is arranged in the lifting channel (10), and the gears (5) are arranged on the lifting channel plates (111) at two sides of the lifting channel (10);
the lifting mechanism (1) is provided with a plurality of limit bolts (12) connected with lifting channel plates (111) on two sides of the lifting channel (10), and the limit bolts (12) are arranged in parallel with the gear (5).
2. The round spud leg rack and pinion lifting platform of claim 1, wherein: the lifting device further comprises guide mechanisms arranged on two sides of the rack (6), and the guide mechanisms are arranged on lifting channel plates (111) on two sides of the lifting channel (10); the guide mechanism is provided with a plurality of rollers (9) which are oppositely arranged, and the rollers (9) are in tangential contact with the side wall of the rack (6).
3. The round spud leg rack and pinion lifting platform of claim 1, wherein: the locking mechanism comprises two locking support frames (21), the two locking support frames (21) are respectively connected with the two frame bodies (112), the locking support frames (21) are provided with first sliding grooves (210), and the frame bodies (112) are provided with second sliding grooves (110) matched with the first sliding grooves (210); the locking bolt (8) sequentially passes through the first sliding groove (210) and the second sliding groove (110) to be inserted into the bolt hole (7), so that the locking and stopping of the lifting platform (3) are realized.
4. A round pile leg rack and pinion lifting platform as defined in claim 3, wherein: the lifting screw driving mechanism comprises a lifting screw driving motor (23) arranged on the locking support frame (21), a chain wheel (24) arranged on the lifting screw driving motor (23) and the lifting screw (22) and a chain (25), wherein the lifting screw driving motor (23) drives each lifting screw (22) to synchronously rotate through the transmission of the chain wheel (24) of the chain (25).
5. The round pile leg rack and pinion lifting platform of claim 4, wherein: the locking bolt sliding mechanism comprises a locking slide block (26) movably sleeved on the lifting screw rod (22) and a locking bolt supporting frame (27) fixedly connected with the locking slide block (26); the locking bolt (8) is movably arranged in the locking bolt supporting frame (27).
6. The round pile leg rack and pinion lifting platform of claim 5, wherein: the locking mechanism also comprises a transmission screw (80) movably connected with the locking bolt (8) and a transmission screw driving motor for driving the transmission screw (80), and the transmission screw driving motor is used for adjusting the insertion and the pulling-out of the locking bolt (8) through driving the transmission screw (80) to rotate so as to lock and unlock the lifting platform (3).
7. The round spud leg rack and pinion lifting platform of claim 6, wherein: the lifting platform (3) is provided with four pile legs (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652753.9A CN108643156B (en) | 2018-06-22 | 2018-06-22 | Round pile leg gear rack lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110138995A (en) * | 2019-05-15 | 2019-08-16 | 深圳市鼎盛精密工业有限公司 | A kind of film scanner hoistable platform |
| CN114427217A (en) * | 2020-10-29 | 2022-05-03 | 中国电建集团华东勘测设计研究院有限公司 | Integrally-mounted structure for offshore electrical platform and mounting method thereof |
| CN112195901A (en) * | 2020-11-09 | 2021-01-08 | 广东海洋大学 | Self-elevating offshore platform pile leg lifting and locking device |
| CN117646416B (en) * | 2024-01-29 | 2024-04-12 | 中国电建集团华东勘测设计研究院有限公司 | Emergency lifting device for deepwater exploration platform and control method and system thereof |
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