CN115676688B - Step-by-step elevating equipment - Google Patents
Step-by-step elevating equipment Download PDFInfo
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- CN115676688B CN115676688B CN202211237350.0A CN202211237350A CN115676688B CN 115676688 B CN115676688 B CN 115676688B CN 202211237350 A CN202211237350 A CN 202211237350A CN 115676688 B CN115676688 B CN 115676688B
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Abstract
The application discloses step-by-step elevating equipment, which comprises a jacking mechanism and a material preparation platform; the jacking mechanism comprises a foundation frame box body, a jacking main oil cylinder, a middle movable frame box, a superposed movable cushion block and a top cushion block, wherein the foundation frame box body and the middle movable frame box are connected through the jacking main oil cylinder, a movable hole for providing a lifting operation space is formed in the middle movable frame box, and the middle movable frame box is connected with the superposed movable cushion block or the top cushion block with the same main structure through a locking device; the material preparation platform is arranged on the side edge of the base frame box body, a linear conveying sliding rail communicated to the surface of the base frame box body is arranged on the material preparation platform, a feeding trolley is connected to the linear conveying sliding rail in a sliding manner, and the feeding trolley slides along the linear conveying sliding rail under the driving of the feeding oil cylinder. The equipment adopts a step-by-step heightening mode to carry out jacking operation, so that stability, safety and working efficiency are effectively improved, and engineering requirements of jacking, translation, pose adjustment and the like of oversized marine facilities can be specifically met.
Description
Technical Field
The application belongs to the technical field of lifting of large overweight equipment, and particularly relates to step-by-step elevating type lifting equipment suitable for jacking of oversized marine equipment.
Background
In the installation and transportation work of large overweight equipment, participation of lifting equipment such as a lifting platform is indispensable, the lifting equipment mainly lifts the large equipment to a required height so as to facilitate maintenance, installation and construction, and the large equipment can be transported to a transportation carrier by utilizing a lifting device.
However, the existing jacking device has the following disadvantages in the use process: 1. currently, most of the lifting equipment adopted at home and abroad is in a semi-automatic mode, the maximum bearing capacity is 2500 tons, and the jacking capacity is smaller; 2. at present, a mode of alternately jacking a plurality of groups of jacks is generally adopted for jacking large-scale equipment, but the jacking mode is difficult to ensure consistency in jacking because a plurality of groups of jacks are required to operate in a combined way, so that the stability of the whole jacking process is poor, and the jacking safety is low; 3. when the lifting process is completed, the support is removed, and the support is mostly disposable, so that excessive unnecessary working procedures exist, the construction period is prolonged, the material waste is serious, and the time cost and the fund cost are increased; 4. in the prior art, operations such as welding and installing are required to be carried out outdoors or outdoors, but in order to ensure welding quality, welding work is required to be carried out in a windless and temperature-controllable environment, when in field work, wind power and temperature are not controllable, the operating environment is greatly changed, and compared with indoor environment conditions, the product quality of the same product is reduced by about 40%, so that a great potential safety hazard exists; 5. at present, ultra-large structural members are still commonly produced by factory slicing (block) and are assembled by field welding, and under the production mode, the construction quality is unstable due to the restriction of conditions such as working conditions and equipment of a construction site, and the engineering quality cannot be strictly ensured.
Therefore, in order to solve the lifting operation difficulty of the ultra-large marine component, the lifting equipment is required to be designed in a targeted improvement way in consideration of the operation environment and the transportation convenience. Chinese patent CN 208377923U discloses an automatic stacking machine, which comprises a frame, a conveyor belt used for conveying material trays and arranged on the frame, a discharging group used for discharging empty material trays and a receiving group used for receiving material trays, wherein after loading is finished, the receiving group lifts the original material trays away from the conveyor belt, the newly filled material trays are conveyed to the position right below the receiving group, the receiving group can stack the original material trays on the new material trays, the automatic stacking of the material trays is repeatedly realized, compared with the collection mode of directly lifting the material trays and stacking the material trays from bottom to top, a supporting frame and an external jacking device are not required, the requirement on the operation area is low, a stacking area is not required to be reserved, and compared with the conventional stacking mode, the advantage is obvious. Based on the above, if the stacked design concept can be applied to lifting equipment suitable for the lifting of ultra-large marine equipment, the problems of the existing lifting equipment can be solved to a certain extent.
However, since the stacking device in the prior art is mainly used for stacking and collecting small objects, when the stacking device is applied to the jacking operation of large marine equipment, the problems of weight, volume, alignment precision, stability in the operation process, safety and the like of the large equipment are considered, so that a simple stacking mechanism is difficult to meet engineering requirements of jacking, translation, position and posture adjustment and the like of the large equipment, and in order to better apply the design thought of gradually stacking from the bottom to lifting equipment and provide reliable assistance for the construction of the large marine equipment, the positioning, calibration, connection mode, lifting process and guarantee of stability after positioning of equipment modules are necessary to be designed more pertinently.
Disclosure of Invention
The application aims to solve the defects in the prior art and discloses a step-by-step elevating type elevating device, which can be particularly oriented to the elevating operation of ultra-large marine components, and the instability-resistant design process synthesizes factors such as cushion block superposition deviation, processing error, uneven load, external load action, dynamic displacement asynchronous error and the like, so that the stability of elevating height of 20 meters can be ensured, and finally, the equipment can meet the elevating operation requirement of complex marine environment, and the equipment reliability and operation safety are improved.
The technical scheme of the application is as follows: a step-by-step elevating equipment comprises a jacking mechanism and a material preparation platform; the jacking mechanism comprises a foundation frame box body, a jacking main oil cylinder, a middle movable frame box, a superposition type movable cushion block and a top cushion block, wherein the foundation frame box body and the middle movable frame box are connected through the jacking main oil cylinder, a movable hole for providing a lifting operation space is formed in the middle of the middle movable frame box, the middle movable frame box is connected with the superposition type movable cushion block or the top cushion block with the same main structure through a locking device, a material preparation platform is arranged on the side edge of the foundation frame box body, a linear conveying sliding rail communicated to the surface of the foundation frame box body is arranged on the material preparation platform, a feeding trolley is connected to the linear conveying sliding rail in a sliding manner, and the feeding trolley slides along the linear conveying sliding rail under the driving of the windward oil cylinder.
Further, the feeding trolley comprises a connecting box body positioned at the lower part and a bearing box body positioned at the upper part, the connecting box body is connected with the feeding oil cylinder, a plurality of lifting guide posts are arranged on the connecting box body, the bottom of the bearing box body is movably sleeved on the lifting guide posts, a plurality of lifting oil cylinders are arranged on the bearing box body, the end parts of cylinder rods of the lifting oil cylinders are connected with the top surface of the connecting box body, and the bearing box body moves longitudinally along the lifting guide posts under the action of the lifting oil cylinders.
Further, two cushion block shelving blocks are arranged on the surface of the base frame box body, the cushion block shelving blocks and the linear conveying sliding rail extend along the length direction of the base frame box body, and the linear conveying sliding rail is positioned between the two cushion block shelving blocks.
Further, the feeding cylinder is a double-rod cylinder, and a piston rod of the feeding cylinder is parallel to the linear conveying sliding rail and extends from the surface of the base frame box body to the material preparation platform.
Further, a bias ball head is arranged on the top surface of the top cushion block, the bias ball head is coaxially connected with a saddle on the top cushion block through a cylindrical head screw, the saddle is fixed on the top cushion block through a set screw, the bias ball head comprises a connecting part positioned below and a contact part positioned above, the bottom surface of the connecting part is a smooth spherical surface, the top surface of the contact part is a plane, a plurality of annular grooves are concentrically arranged along the radial direction of the contact part, the top surface of the saddle is a concave cambered surface matched with the bottom surface of the connecting part in shape, a connecting cavity longitudinally penetrating through two side surfaces of the bias ball head is arranged in the middle of the bias ball head, an expanding step surface is arranged at the upper part of the connecting cavity, one end of the cylindrical head screw is fixed on a spring seat, a spring is sleeved on the bottom surface of the spring, when the cylindrical head screw penetrates through the connecting cavity from the top of the bias ball head to the saddle at the bottom, the bottom of the spring is pressed on the step surface, the bottom surface of the bias ball head is adaptively connected with the saddle, the bottom surface of the connecting part is adaptively connected in the concave cambered surface at the top surface of the top of the saddle, the diameter of the cavity of the connecting part, the cavity of the connecting part is larger than the diameter of the cylindrical head is larger than the diameter of the connecting screw, and the diameter of the cavity is gradually increased along the direction of the step surface from the bottom surface to the bottom of the step surface.
Further, bolt holes, guide posts and forklift loading and unloading holes are formed in the overlapped movable cushion blocks and the top cushion blocks, a plurality of bolt holes are formed in the front opposite side surface and the rear opposite side surface of the overlapped movable cushion blocks and the top cushion blocks respectively, locking holes are formed in the positions, matched with the bolt holes, of the middle movable frame box, the locking devices are arranged in the locking holes and comprise locking oil cylinders and pin shafts located at the free ends of cylinder rods, the shapes of the pin shafts are matched with the shapes of the bolt holes, and the pin shafts are rectangular duck tongue type pin shafts.
Further, a guide post is respectively arranged at the four corners of the bottoms of the overlapped movable cushion block and the top cushion block, a positioning sheet is respectively arranged at the four corners of the top surface of the overlapped movable cushion block, and a guide hole matched with the guide post is arranged at the position on the positioning sheet corresponding to the guide post.
Further, cushion block supporting plates extending along the length direction of the cushion block supporting plates are arranged on the front side and the rear side of the material preparation platform, the cushion block supporting plates are connected with cushion block shelving blocks, the distance between the two cushion block supporting plates is matched with the width of the overlapped movable cushion block, and adaptive bearing guide holes are formed in positions, corresponding to the guide columns, of the cushion block supporting plates.
Further, two sides of the cushion block supporting plate are provided with guide inclined tables which extend along the length direction and incline from outside to inside.
Further, the cushion block placing block is provided with an adaptive placing block guide hole at a position corresponding to the guide post at the bottom of the overlapped movable cushion block or the top cushion block.
The beneficial effects of the application are as follows:
1. the lifting equipment disclosed by the application adopts a step-by-step lifting mode, the cushion blocks can be repeatedly used, full-automatic stacking is realized under the control of a system, the mode operation is safe and quick, the existing mature PLC control technology is utilized, and the hydraulic drive is adopted, so that the integrated comprehensive operation of a machine, electricity and liquid is realized; because the automation degree is high, the operation speed is high, the operation is accurate, and compared with the traditional method, the construction time can be saved by 90% by using the extra-heavy step-by-step elevating equipment;
2. when the lifting equipment disclosed by the application is used singly, the lifting weight is 4000 tons, the limit of the lifting weight of the existing similar equipment is broken through, and the lifting demand of 20 meters of a marine facility of 16000-64000 tons can be met by using 4-16 equipment in a combined way, so that equipment support is provided for the efficient implementation of engineering items such as lifting, translation and the like of marine engineering and even overlarge tonnage and overlarge scale construction on land;
3. when the equipment performs jacking operation, related operators can perform the operation on the flat land, the operation safety is high, a supporting frame and external jacking equipment are not required to be built, the equipment can be reused, the working requirements of multiple occasions are facilitated, materials are saved, and the cost is reduced;
4. when the lifting equipment disclosed by the application is used for carrying out step-by-step elevating operation, a multi-point alignment technology is adopted, so that the synchronous precision can be controlled to be +/-3 mm, the lifting point is increased or decreased from 4 points to 16 points, and the site connection is convenient; the operation automation of automatic feeding, correction, jacking and return is realized through host control;
5. the independently designed feeding oil cylinder adopts a double-output-rod structure, and the piston rod is only pulled by the mode that the piston rod fixes the cylinder body to move, so that the problem of buckling strength of the piston rod is solved;
6. the unbalanced load ball head is connected to the surface of the top cushion block through the saddle, and can rotate at any angle on the saddle.
Drawings
FIG. 1 is an isometric view of a step-wise lift apparatus;
FIG. 2 is a schematic diagram of the assembly of a base frame box with a stock platform;
FIG. 3 is a schematic left view of the step-up lifting device of FIG. 1 in a step-up operation;
FIG. 4 is an isometric view of a stacked mobile pad;
FIG. 5 is a schematic front view of a stacked mobile head block;
FIG. 6 is a schematic front view of the feed cylinder;
FIG. 7 is a schematic cross-sectional view of the service ram of FIG. 6 taken along the direction A-A;
FIG. 8 is a schematic front view of a bias-loaded ball head;
FIG. 9 is a schematic cross-sectional view of the offset ball head of FIG. 8 taken along the B-B direction;
FIG. 10 is an isometric view of an offset ball head;
FIG. 11 is a cross-sectional isometric view of a bias-loaded ball head;
wherein, the lifting mechanism is 1-and the material preparation platform is 2-;
11-a base frame box body, 12-a jacking main oil cylinder, 13-a middle movable frame box, 14-a superposition type movable cushion block and 15-a top cushion block;
111-cushion block rest blocks, 112-adjusting supports, 113-rest block guide holes;
131-locking holes, 132-locking devices;
1321-locking cylinder, 1322-pin shaft;
141-bolt holes, 142-guide posts, 143-positioning sheets, 144-guide holes and 145-forklift loading and unloading holes;
151-off-load ball head, 152-cylinder screw, 153-saddle;
1511-engagement, 1512-contact, 1513-annular groove, 1514-connection cavity, 1515-step surface, 1516-spring seat, 1517 spring;
21-linear conveying slide rails, 22-feeding trolleys, 23-feeding cylinders, 24-cushion block supporting plates, 25-supporting guide holes and 26-material guiding platforms;
221-connecting box body, 222-bearing box body, 223-lifting guide column and 224-lifting oil cylinder;
231-cylinder body, 232-cylinder cover, 233-piston rod.
Detailed Description
The following examples further illustrate the application but are not to be construed as limiting the application. Modifications and substitutions to methods, procedures, or conditions of the present application without departing from the spirit of the application are intended to be within the scope of the present application.
Example 1:
in order to meet the lifting operation requirement under a complex marine environment and further improve the reliability and the operation safety of lifting operation, the embodiment discloses a step-by-step lifting device, which comprises a lifting mechanism 1 and a material preparation platform 2, wherein the lifting mechanism 1 comprises a base frame box 11, a lifting main oil cylinder 12, a middle movable frame box 13, a superposition type movable cushion block 14 and a top cushion block 15, the lifting main oil cylinder 12 is respectively arranged at four corners of the top surface of the base frame box 11, the end part of a cylinder rod of the lifting main oil cylinder 12 is fixedly connected with the bottom surface of the middle movable frame box 13, the lifting main oil cylinder 12 is provided with hydraulic power by a hydraulic pump station, a movable hole which is longitudinally communicated is formed in the middle of the middle movable frame box 13, the superposition type movable cushion block 14 and the top cushion block 15 are subjected to superposition lifting operation in the movable hole area, and two cushion block rest blocks 111 which extend along the length direction are arranged on the surface of the base frame box 11.
The material preparation platform 2 is arranged on the side edge of the base frame box body 11, the material preparation platform 2 is provided with a linear conveying sliding rail 21 which extends along the length direction and is communicated with the surface of the base frame box body 11, the linear conveying sliding rail 21 is positioned between two cushion block shelving blocks 111, the linear conveying sliding rail 21 is connected with a feeding trolley 22 in a sliding manner, and the feeding trolley 22 slides along the linear conveying sliding rail 21 under the driving of a head-on feeding oil cylinder 23.
In practical design, the conveying stroke of the stacked movable cushion block 14 is 3415mm, and a common conveying method adopts a chain transmission mode for conveying, but the chain transmission conveying mode has the problems of easy abrasion, poor transmission stability, large occupied space compared with an oil cylinder and the like, so that the conveying mode is optimized to be hydraulic transmission subsequently. However, because the conveying stroke is too long, if a conventional oil cylinder is adopted, the cylinder diameter and the rod diameter of the oil cylinder are designed to be very large, so that the problems of material waste and excessive space occupation exist, in order to solve the corresponding problems, in this embodiment, a double-rod type feeding oil cylinder 23 is provided, the structure of which is shown in fig. 6-7, and comprises a cylinder body 231, a cylinder cover 232 and a piston rod 233, two ends of the piston rod 233 are fixed and parallel to the design of a linear conveying sliding rail 21, the piston rod 233 extends from the surface of a base frame box 11 to a material preparation platform 2, the cylinder body 231 is connected with a feeding trolley 22, the cylinder body 231 moves on the piston rod 233 under the hydraulic action, and then the feeding trolley 22 is driven to move, and in this embodiment, the problem of buckling strength caused by the excessive thrust of the elongated piston rod is solved by pulling and pushing.
The feeding trolley 22 comprises a connecting box 221 positioned at the lower part and a bearing box 222 positioned at the upper part, the connecting box 221 is connected with a cylinder body 231 of the feeding cylinder 23, and then moves along the linear conveying sliding rail 21 under the action of the feeding cylinder 23, a plurality of lifting guide posts 223 are arranged on the connecting box 221, in order to improve the stability of the lifting process, the number of the lifting guide posts 223 is preferably even and is preferably symmetrically arranged on the connecting box 221, the bottom of the bearing box 222 is movably sleeved on the lifting guide posts 223, a lifting cylinder 224 is arranged on the bearing box 222, the end part of a cylinder rod of the lifting cylinder 224 is connected with the top surface of the connecting box 221, and the bearing box 222 can longitudinally move along the lifting guide posts 223 under the action of the lifting cylinder 224.
In order to automatically adjust the contact state according to different surface conditions of the bearing member and ensure the bonding contact stability, a bias ball 151 is arranged on the top surface of the top cushion block 15.
The structure of the offset ball 151 is shown in fig. 8-11, the offset ball 151 is connected with the saddle 153 on the top cushion 15 through a cylindrical head screw 152, the saddle 153 is fixed on the top cushion 15 through a set screw, the offset ball 151 comprises a connecting part 1511 positioned below and a contact part 1512 positioned above, the connecting part 1511 and the contact part 1512 are integrally formed, the bottom surface of the connecting part 1511 is a smooth spherical surface, the top surface of the contact part 1512 is a plane, a plurality of annular grooves 1513 are concentrically arranged along the radial direction of the contact part, so as to increase the contact friction force between the offset ball 151 and the bearing member, the top surface of the saddle 153 is an inward concave cambered surface matched with the bottom surface of the connecting part 1511, a connecting cavity 1514 longitudinally penetrating through the two sides of the offset ball 151 is arranged in the middle of the offset ball 151, an outward expanding step surface 1515 is arranged at the upper part of the connecting cavity 1514, one end of the cylindrical head screw 152 is fixed on a spring seat 1516, the spring 1517 is sleeved on the bottom surface of the spring seat 1516 in a ring, when the cylindrical head screw 152 passes through the connecting cavity 1514 from the top of the eccentric ball 151 to be connected with the saddle 153 at the bottom, the bottom of the spring 1517 is pressed on the step surface 1515 to play a role of pressing and limiting, after the eccentric ball 151 is connected with the saddle 153, the bottom surface of the connecting part 1511 is adaptively connected in the concave cambered surface at the top of the saddle 153, the cavity diameter of a part of the cavity of the connecting cavity 1513 below the step surface 1515 is larger than the diameter of the cylindrical head screw 1515, and the diameter of the part of the cavity is gradually increased along the direction from the end of the step surface to the bottom surface of the connecting part 1511, so that the eccentric ball 151 can rotate at any angle on the saddle 153 after being connected with the saddle 153, the contact and laminating angle can be automatically adjusted according to the surface condition of a bearing member, the structure is high in flexibility, and the stress balance of equipment in the lifting process can be ensured.
The main structures of the stacked movable cushion block 14 and the top cushion block 15 are the same, and the cushion block main body is provided with a bolt hole 141, a guide post 142 and a forklift loading and unloading hole 145, and the structure of the stacked movable cushion block is taken as an example for details: the front and back opposite sides of the overlapped movable cushion block 14 are provided with a plurality of bolt holes 141, the middle movable frame box 13 is provided with a locking hole 131 at a position matched with the bolt holes 141, the locking hole 131 is provided with a locking device 132, the locking device 132 comprises a locking oil cylinder 1321 and a pin shaft 1322 positioned at the free end of the cylinder shaft, and the shape of the pin shaft 1322 is matched with the shape of the bolt hole 141.
Internationally, a cylindrical bolt is generally adopted as a large-tonnage movable bolt, but the large-tonnage movable bolt is limited by the characteristic of the contact area of the cylindrical bolt, and the tonnage is limited to be increased due to space problems under the ultra-large tonnage jacking working condition, so in the embodiment, in order to improve the load capacity, a rectangular duck tongue-shaped pin shaft is adopted as the pin shaft 1322 to enlarge the positioning contact area of the locking device and the stacked movable cushion block 14 or the top cushion block 15.
In order to improve stability of the stacking type movable cushion block 14 and the top cushion block 15 in carrying and stacking processes, guide posts 142 are respectively arranged at four corners of the bottoms of the stacking type movable cushion block 14 and the top cushion block 15, positioning pieces 143 are respectively arranged at four corners of the top surface of the stacking type movable cushion block 14, and guide holes 144 matched with the guide posts 142 are formed in positions, corresponding to the guide posts 142, of the positioning pieces 143. When the layer-by-layer elevating operation is carried out, when the adjacent stacked overlapped movable cushion blocks 14 or the top cushion block 15 are matched and connected with the overlapped movable cushion blocks 14, the guide posts 142 and the guide holes 144 on the upper and lower adjacent cushion blocks are correspondingly inserted, so that the gravity center of the elevating device is convenient to find, the adverse conditions such as cushion block offset and the like are avoided, and the stability and the safety during elevating operation can be improved.
In order to facilitate forklift loading and unloading, forklift loading and unloading holes 145 are formed in the lateral surfaces of the overlapped movable cushion block 14 and the top cushion block 15, and the forklift loading and unloading holes are designed to be universal apertures of forklifts.
In order to better complete the leveling operation of the jacking mechanism, an adjusting support 112 is respectively arranged at four corners of the bottom of the base frame box 11, and the adjusting support 112 is a common mechanism and will not be described in detail herein.
The front and rear sides of the material preparation platform 2 are provided with cushion block supporting plates 24 extending along the length direction, the cushion block supporting plates 24 are connected with cushion block shelving blocks 111, the distance between the two cushion block supporting plates 24 is matched with the width of the overlapped movable cushion block 14 so as to perform initial positioning better, and in order to perform effective initial positioning at the initial stage of conveying the overlapped movable cushion block 14 or the top cushion block 15 to the material preparation platform so as to smoothly perform subsequent flow, the positions on the cushion block supporting plates 14 corresponding to the guide posts 142 are provided with adaptive bearing guide holes 25.
In order to more smoothly convey the overlapped movable cushion block 14 or the top cushion block 15 to the cushion block supporting plate 24 by using a forklift and correspondingly connect the overlapped movable cushion block 14 or the top cushion block 15 with the bearing guide holes 25 on the cushion block supporting plate 24, two sides of the cushion block supporting plate 24 are provided with guide inclined tables 26 extending along the length direction of the cushion block supporting plate and inclining from outside to inside, the upper opening angles of the two guide inclined tables 26 are large, and the openings are gradually reduced when the upper opening angles extend to the position where the lower part is connected with the cushion block supporting plate 24, so that the overlapped movable cushion block 14 or the top cushion block 15 conveyed to the upper part of the material preparation platform 2 by using the forklift can have a primary guiding effect, and operators can conveniently convey the cushion blocks in place more quickly.
The cushion block placing block 111 is provided with an adaptive placing block guide hole 113 at a position corresponding to the guide column 142 at the bottom of the stacked movable cushion block 14 or the top cushion block 15, the guide column 142 is correspondingly connected with the placing block guide hole 113 at the corresponding position, and the cushion block which is transferred to the base frame box 11 for carrying out the heightening operation can be repositioned.
The electrical equipment used in the equipment is controlled and linked by the main controller in a flow manner, so that the accuracy of each step of operation is guaranteed, the main controller carries on a mature PLC control technology to carry out flow control, and the stability and the safety of the elevating equipment in a lifting mode are guaranteed.
Because the main structure of the top cushion block 15 is the same as that of the stacking type movable cushion block 14, but because the top of the top cushion block 15 is provided with the offset ball head 151 which is convenient for planar engagement, when the lifting operation is performed, the top cushion block 15 is assembled in place, and then the stacking type movable cushion blocks 14 with corresponding numbers are specifically selected for stacking according to the requirement of the lifting operation height, and the specific operation flow of the equipment is as follows:
s1: when large-scale equipment jacking is needed, the top cushion block 15 is conveyed to the material preparation platform 2 by utilizing a forklift, so that the top cushion block 15 is arranged on the feeding trolley 22, and the guide post 142 at the bottom of the top cushion block is inserted into the bearing guide hole 25 on the cushion block bearing plate 24 to ensure positioning accuracy; the accuracy of the position placement is directly related to the completion accuracy of the subsequent superposition process;
s2: the lifting oil cylinder 224 extends out to jack up the bearing box body 222, the bearing box body 222 moves upwards to jack up the top cushion block 15 arranged on the bearing box body, the jacking distance is 40mm, the bottom four guide posts 142 are moved out of the corresponding connected bearing guide holes 25, and the lifting positioning process is completed by the lifting guide posts 223;
s3: the feeding cylinder 23 on the material preparation platform 2 starts to run, the feeding trolley 22 is driven to move the top cushion block 15 to the cushion block superposition position, namely, the position below the movable hole of the middle movable frame box 13, and the feeding cylinder 23 stops acting;
s4: the lifting oil cylinder 224 is retracted and reset, the guide post 142 at the bottom of the top cushion block 15 falls into the guide hole 113 of the cushion block placing block 111 in a matched manner, so that the position of the cushion block ready for stacking operation is corrected again, and the accuracy of the stacking process is further ensured;
s5: the four jacking main cylinders 12 descend until the positions of the locking holes 131 on the middle movable frame box 13 correspond to the positions of the bolt holes 141 on the cushion blocks, the locking cylinders 1321 extend out, and the pin shafts 1322 are inserted into the bolt holes of the top cushion block 15;
s6: the four jacking main cylinders 12 are lifted to be lifted to a designated position together with the top cushion block 15;
s7: the feeding oil cylinder 23 runs to convey the feeding trolley 22 to an initial position, when the overlapped movable cushion block 15 is required to be overlapped at the bottom of the top cushion block 15, the circulation flows S1-S4 are continued to convey one overlapped movable cushion block 14 to a positioning point at the bottom of the top cushion block 15, the four jacking main oil cylinders 12 descend to transfer heavy load to the overlapped movable cushion block 15, after the heavy load is stably transferred, the locking oil cylinders 1321 retract, the pin shafts 1322 are received in the locking holes 131, and at the moment, the self-checking program arranged on the total control system can be utilized to check the situation of the pin shafts 1322 in place;
s8: the four jacking main cylinders 12 continue to descend to the set position (namely, when the position of the locking hole 131 corresponds to the position of the bolt hole 141 on the bottom to-be-overlapped movable cushion block 14), and stop, at this time, the locking cylinder 1321 stretches out again, and the pin shaft 1322 is inserted into the bolt hole 141 of the to-be-combined overlapped movable cushion block 14;
s9: the four jacking main cylinders 12 are lifted to be lifted to a designated position in combination with the newly overlapped movable cushion blocks 14;
s10: the feeding trolley 22 returns to the initial position again, the processes S7-S9 are continuously circulated, and the equipment is jacked up to the required height by stacking the corresponding number of stacked movable cushion blocks 14 again at the bottoms of the stacked cushion blocks;
if desired, the apparatus height is lowered, in the same manner as described above, except for the reverse procedure.
The foregoing has outlined and described the basic principles, features, and advantages of the present application. However, the foregoing is merely specific examples of the present application, and the technical features of the present application are not limited thereto, and any other embodiments that are derived by those skilled in the art without departing from the technical solution of the present application are included in the scope of the present application.
Claims (6)
1. The step-by-step elevating equipment is characterized by comprising an elevating mechanism and a material preparation platform;
the jacking mechanism comprises a foundation frame box body, a jacking main oil cylinder, a middle movable frame box, a superposed movable cushion block and a top cushion block, wherein the foundation frame box body and the middle movable frame box are connected through the jacking main oil cylinder, a movable hole for providing a lifting operation space is formed in the middle of the middle movable frame box, and the middle movable frame box is connected with the superposed movable cushion block or the top cushion block with the same main structure through a locking device;
the material preparation platform is arranged at the side edge of the base frame box body, a linear conveying sliding rail communicated to the surface of the base frame box body is arranged on the material preparation platform, a feeding trolley is connected to the linear conveying sliding rail in a sliding manner, and the feeding trolley slides along the linear conveying sliding rail under the driving of the feeding oil cylinder;
the feeding oil cylinder is a double-rod oil cylinder, and a piston rod of the feeding oil cylinder is parallel to the linear conveying sliding rail and extends from the surface of the base frame box body to the material preparation platform;
the four corners of the bottoms of the overlapped movable cushion block and the top cushion block are respectively provided with a guide post, the four corners of the top surface of the overlapped movable cushion block are respectively provided with a positioning sheet, and the positions of the positioning sheets corresponding to the guide posts are provided with guide holes matched with the guide posts;
cushion block bearing plates extending along the length direction of the front and rear sides of the material preparation platform are arranged, and adaptive bearing guide holes are arranged at positions on the cushion block bearing plates corresponding to the guide columns;
two sides of the cushion block supporting plate are provided with guide inclined tables which extend along the length direction and incline from outside to inside;
two cushion block shelving blocks are arranged on the surface of the foundation frame box body, and adaptive shelving block guide holes are arranged on the cushion block shelving blocks at positions corresponding to guide columns at the bottoms of the overlapped movable cushion blocks or the top cushion blocks.
2. The step-by-step elevating equipment as set forth in claim 1, wherein the feeding trolley comprises a connecting box at the lower part and a bearing box at the upper part, the connecting box is connected with the feeding cylinder, a plurality of lifting guide posts are arranged on the connecting box, the bottom of the bearing box is movably sleeved on the lifting guide posts, a plurality of lifting cylinders are arranged on the bearing box, the end part of the cylinder shaft of the lifting cylinder is connected with the top surface of the connecting box, and the bearing box moves longitudinally along the lifting guide posts under the action of the lifting cylinders.
3. The step-up lifting device of claim 1, wherein the pad rest blocks and the linear transport slide rail extend along the length of the base frame housing, and the linear transport slide rail is positioned between the two pad rest blocks.
4. The step-by-step elevating equipment as set forth in claim 1, wherein an offset ball is provided on the top surface of the top cushion block, the offset ball is coaxially connected with the saddle on the top cushion block through a cylindrical head screw, the saddle is fixed on the top cushion block through a set screw, the offset ball comprises a connecting portion located below and a contact portion located above, the bottom surface of the connecting portion is a smooth spherical surface, the top surface of the contact portion is a plane and is provided with a plurality of annular grooves along the radial direction, the top surface of the saddle is an inward concave cambered surface with shape adaptation with the bottom surface of the connecting portion, a connecting cavity longitudinally penetrating through two sides of the offset ball is provided in the middle of the offset ball, an outward expanding step surface is provided on the upper portion of the connecting cavity, one end of the cylindrical head screw is fixed on the spring seat, when the bottom surface of the spring seat is sleeved with a spring, the cylindrical head screw passes through the connecting cavity from the top of the offset ball to the saddle, the bottom of the spring is pressed on the step surface, the bottom surface of the connecting portion is adaptively connected with the saddle, the bottom surface of the connecting portion is in the concave cambered surface at the top of the saddle, the connecting portion of the connecting portion, the cavity diameter of the cavity is larger than the cavity diameter of the cavity located below the step surface, and the cavity is gradually increased from the bottom surface of the cavity to the bottom surface.
5. The step-by-step elevating device as set forth in claim 1, wherein the stacked movable cushion block and the top cushion block are provided with bolt holes, guide posts and forklift loading and unloading holes, the front and rear opposite sides of the stacked movable cushion block and the top cushion block are respectively provided with a plurality of bolt holes, the middle movable frame box is provided with a locking hole at a position matched with the bolt holes, the locking device is arranged in the locking hole and comprises a locking cylinder and a pin shaft positioned at the free end of the cylinder shaft, the shape of the pin shaft is matched with the shape of the bolt holes, and the pin shaft is a rectangular duck tongue pin shaft.
6. A step-up lifting device as claimed in claim 3, wherein the pad carrier is adapted to engage the pad rest, the distance between the pad carriers being adapted to the width of the overlying movable pad.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211237350.0A CN115676688B (en) | 2022-10-10 | 2022-10-10 | Step-by-step elevating equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211237350.0A CN115676688B (en) | 2022-10-10 | 2022-10-10 | Step-by-step elevating equipment |
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| CN115676688A CN115676688A (en) | 2023-02-03 |
| CN115676688B true CN115676688B (en) | 2023-11-07 |
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| CN202211237350.0A Active CN115676688B (en) | 2022-10-10 | 2022-10-10 | Step-by-step elevating equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116425080B (en) * | 2023-06-15 | 2023-09-22 | 中铁十四局集团有限公司 | Integral lifting device for double-layer steel truss |
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| CN204624534U (en) * | 2015-02-16 | 2015-09-09 | 长安大学 | A kind of jacking and conveying arrangement being applicable to large volume model |
| CN106759925A (en) * | 2017-03-24 | 2017-05-31 | 上海同罡建筑工程有限公司 | A kind of structure jacking apparatus and structure jacking method |
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| CN115676688A (en) | 2023-02-03 |
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