CN113511588B - Overturn traveling device and method for hoist cylinder - Google Patents
Overturn traveling device and method for hoist cylinder Download PDFInfo
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- CN113511588B CN113511588B CN202110438389.8A CN202110438389A CN113511588B CN 113511588 B CN113511588 B CN 113511588B CN 202110438389 A CN202110438389 A CN 202110438389A CN 113511588 B CN113511588 B CN 113511588B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 101
- 230000007306 turnover Effects 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a turnover traveling device and a turnover traveling method of an oil cylinder of a hoist, comprising a traveling platform, wherein one end of the traveling platform is provided with a hinged turnover platform, the turnover platform is provided with a plurality of locking mechanisms, a mounting platform at the end part of the turnover platform is provided with a rotatable fixing seat, the end part of the oil cylinder is fixed in the fixing seat in an axial direction, the oil cylinder is abutted against the locking mechanisms to be fixed in a radial direction, a fixing mechanism is fixedly arranged on the oil cylinder, two expansion sleeves in the fixing mechanism are respectively fixed on a piston rod and a cylinder body of the oil cylinder, and the two expansion sleeves are fixedly connected through a connecting shaft so as to ensure that the piston rod of the oil cylinder is fixedly connected with the cylinder body; the crane moves the vertical oil cylinder to the overturning platform and is fixed through the locking mechanism and the fixing seat, the lifting rope of the crane is released and the travelling platform is driven to move, the overturning platform can drive the oil cylinder to rotate to lie on the travelling platform, otherwise, the oil cylinder lying on the travelling platform can be lifted to be in a vertical state through the lifting rope of the winding crane and the travelling platform is driven to move.
Description
Technical Field
The invention relates to the field of oil cylinder overturning, in particular to an overturning traveling device and method of an oil cylinder of a hoist.
Background
The hydraulic hoist for hydropower station is a new type hoist machine integrating machine, electricity, liquid and instrument into one body, and is an assembly combining hydraulic cylinder as main body, oil pump, oil tank, oil filter and hydraulic control valve. The hydraulic hoist cylinder is used as the main equipment of the whole hydraulic system, and the piston body in the hydraulic cylinder axially reciprocates on the inner wall under the control of the hydraulic system, so that the connecting rod connected to the piston and the gate are driven to do linear motion, and the aim of opening and closing the gate is achieved. Therefore, the hydraulic cylinder is used as a main executive component for maintenance, such as replacement of sealing elements, cleaning of the inner wall of the hydraulic cylinder and other routine maintenance, and the hydraulic cylinder of the hydropower station is required to have larger opening and closing force due to high design water head, and the length and the weight of the hydraulic cylinder manufactured for meeting the design requirement are very large, so that the heavy difficulty of maintenance of the hydraulic cylinder falls in the lifting and overturning process of the hydraulic cylinder, the existing lifting and overturning mode has a certain safety risk, the lifting and overturning operation difficulty is high, and the hydraulic cylinder is time-consuming and labor-consuming.
The Chinese patent CN208586571U relates to a special lifting appliance for lifting and turning a hydraulic hoist cylinder of a hydropower station, and the special lifting appliance mounted on the cylinder is lifted by a crane through the turning lifting appliance of the hoist cylinder, so that the cylinder can be driven to turn, but the cylinder cannot be completely vertical or horizontal due to the turning, a certain deviation exists in the turning, and the tool lifting appliance can damage the outer surface of the cylinder.
Disclosure of Invention
The invention mainly aims to provide a turnover traveling device and a turnover traveling method for an oil cylinder of a hoist, and solves the problems that the existing hoisting and turnover mode has a certain safety risk, the hoisting and turnover operation is difficult, and time and labor are wasted.
In order to solve the technical problems, the invention adopts the following technical scheme: the device comprises a walking platform, wherein one end of the walking platform is provided with a hinged overturning platform, the overturning platform is provided with a plurality of locking mechanisms, a rotatable fixing seat is arranged on a mounting platform at the end part of the overturning platform, the end part of an oil cylinder is fixed in the fixing seat in an axial direction, the oil cylinder is abutted against the locking mechanisms to be fixed in a radial direction, a fixing mechanism is fixedly arranged on the oil cylinder, two expansion sleeves in the fixing mechanism are respectively fixed on a piston rod and a cylinder body of the oil cylinder, and the two expansion sleeves are fixedly connected through a connecting shaft so as to ensure that the piston rod of the oil cylinder is fixedly connected with the cylinder body;
The crane moves the vertical oil cylinder to the overturning platform and is fixed through the locking mechanism and the fixing seat, the lifting rope of the crane is released and the travelling platform is driven to move, the overturning platform can drive the oil cylinder to rotate to lie on the travelling platform, otherwise, the oil cylinder lying on the travelling platform can be lifted to be in a vertical state through the lifting rope of the winding crane and the travelling platform is driven to move.
In the preferred scheme, a plurality of rollers are arranged around a first support frame in the walking platform, the rollers at one end of the first support frame are connected through a drive axle, and a motor is fixedly arranged on the drive axle;
the motor rotates to drive the roller to rotate through the drive axle so as to enable the first support frame to move, or the motor locks the roller to fix the first support frame.
In the preferred scheme, a plurality of sleepers are fixedly arranged on the first support frame, the overturning platform horizontally abuts against the sleepers, first bearing seats are arranged on two sides of the first support frame, and a second bearing seat in the overturning platform is hinged with the first bearing seats through a rotating shaft.
In the preferred scheme, a fourth pushing mechanism is arranged between the walking platform and the overturning platform, one end of the fourth pushing mechanism is hinged to a hinged seat in the walking platform, and the other end of the fourth pushing mechanism is hinged to a pin shaft in the overturning platform.
In the preferred scheme, a slewing mechanism is arranged between the mounting platform and the fixed seat, a fixed end of a slewing bearing in the slewing mechanism is arranged on the mounting platform, and the fixed seat is arranged on a rotating end of the slewing bearing;
the rotating end of the slewing bearing is provided with a gear, one side of the gear is provided with a rack meshed with the gear, and the rack abuts against the sliding groove to move.
In the preferred scheme, a third pushing mechanism is arranged between the sliding chute and the rack, one end of the third pushing mechanism is hinged on the sliding chute, and the other end of the third pushing mechanism is hinged on the rack;
The third pushing mechanism drives the rack to move in the chute, so that the gear meshed with the rack is driven to rotate, and the oil cylinder on the fixing seat can be driven to rotate.
In the preferred scheme, the end part of a locking seat in the locking mechanism is provided with two rotating frames which rotate relatively, the rotating frames are hinged with the locking seat, a first pushing mechanism is arranged between the rotating frames and the locking seat, one end of the first pushing mechanism is hinged on the rotating frames, and the other end of the first pushing mechanism is hinged on the locking seat;
the locking seat and the rotating frame are spliced into an inner circle, a plurality of rotatable rollers are arranged on one side, close to the inner circle, of the locking seat and the rotating frame, and the oil cylinder abuts against the rollers to rotate.
In the preferred scheme, a second pushing mechanism is fixedly arranged at the end part of the rotating frame at one side, a movable locking hook is arranged at the end part of the second pushing mechanism, a hook pin is fixedly arranged at the end part of the rotating frame at the other side, and the locking hook is abutted against the hook pin for fixation.
In the preferred scheme, connecting lugs are arranged on two sides of an expansion sleeve, two ends of a connecting shaft are fixed on the connecting lugs through nuts, clamping rings in the expansion sleeve are two arc-shaped rings, the two arc-shaped rings are connected through a first bolt, one ends of the two clamping rings are hinged through a hinge shaft, the other ends of the two clamping rings are fixedly connected through a second bolt, arc-shaped pressing blocks are arranged on the inner sides of the clamping rings, the cross sections of the arc-shaped pressing blocks are conical, and conical surfaces abut against the two arc-shaped rings;
the hinged clamping ring can be abutted against the piston rod and the cylinder body of the oil cylinder to be pre-fixed, and the distance between the two arc rings can be adjusted by adjusting the first bolt, so that the arc pressing block can be driven to shrink and abutted against the piston rod and the cylinder body of the oil cylinder to be fixed.
The method comprises the following steps: s1, a piston rod in an oil cylinder of the hoist is contracted to the bottom, and then the piston rod and a cylinder body of the oil cylinder are respectively fixed through an expansion sleeve in a fixing mechanism and are connected through a connecting shaft, so that the piston rod can be prevented from being movably separated from the cylinder body in the process of disassembling, assembling and transporting the oil cylinder;
S2, fixing a lifting rope on a crane on an oil cylinder of the hoist, dismantling the oil cylinder, and transferring the dismantled oil cylinder to a turnover platform through the crane;
S3, the overturning platform and the walking platform are in a vertical state, a locking mechanism on the overturning platform is in an unfolding state, a vertically hoisted oil cylinder horizontally enters the locking mechanism, then a lifting rope is released to enable the end part of the oil cylinder to be clamped in a fixed seat, and the oil cylinder is fixed through a pin shaft, and the locking mechanism is tightened to fix the oil cylinder;
S4, pushing the rack to move through a third pushing mechanism in the slewing mechanism, and driving the gear and the fixed seat to rotate, so that the oil cylinder can be abutted against a roller in the locking mechanism to rotate, and the connection and locking of the door hanger are facilitated;
S5, slowly releasing the lifting rope, relatively driving the traveling platform to move, enabling the oil cylinder to slowly incline to be horizontally moved, controlling the speed of releasing the lifting rope and the moving speed of the traveling platform to achieve balance, enabling the lifting rope to move in the vertical direction, and guaranteeing the overturning safety of the oil cylinder;
S6, when the horizontal oil cylinder is turned to be vertical, the oil cylinder is hoisted and fixed on the horizontal turning platform to be fixed, then the door hoist is installed at the end part of the oil cylinder by rotating the oil cylinder, the lifting rope is slowly wound, the traveling platform is driven to move relatively, the oil cylinder is slowly inclined to be vertical, the speed of the winding lifting rope and the moving speed of the traveling platform are controlled to be balanced, the lifting rope is enabled to move in the vertical direction, and the safety of the turning of the oil cylinder is ensured.
The invention provides a turnover traveling device and a turnover traveling method of an oil cylinder of a hoist, wherein the end part of the oil cylinder is vertically moved to a turnover platform through a crane, the end part of the oil cylinder is fixed on a fixed seat, the circumference of the oil cylinder is abutted against a locking mechanism, the traveling platform is driven to move and simultaneously a lifting rope of the crane is released, so that the oil cylinder is stably and slowly laid on the traveling platform, the rotating fixed seat drives the oil cylinder to rotate, the installation and the disassembly of a lifting appliance of the hoist are convenient, the operation is simple, convenient and reliable, the oil cylinder is firmly fixed on the turnover platform, the oil cylinder cannot be damaged in the turnover process, and the reverse operation can ensure that the oil cylinder is turned from horizontal to vertical, thereby being suitable for popularization and use.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of the present invention in a vertical position;
FIG. 2 is a schematic view of the overall structure of the present invention in a horizontal state;
FIG. 3 is a view showing the structure of the walking platform of the present invention;
FIG. 4 is a bottom view of the walking platform of the present invention;
FIG. 5 is a view of the structure of the flip platform of the present invention;
FIG. 6 is a top view of the flip platform of the present invention;
FIG. 7 is a schematic illustration of the locking mechanism of the present invention;
FIG. 8 is an expanded schematic view of the locking mechanism of the present invention;
FIG. 9 is an isometric view of the securing mechanism of the present invention;
FIG. 10 is an expanded view of the expansion shell of the present invention;
FIG. 11 is a cross-sectional view of an expansion shell of the present invention;
In the figure: a walking platform 1; a first support frame 101; a roller 102; a sleeper 103; a hinge base 104; a first bearing housing 105; a first fixing hole 106; a drive axle 107; a motor 108; a turnover platform 2; a second support frame 201; a mounting platform 202; a pin 203; a second fixing hole 204; a second bearing block 205; an oil cylinder 3; a locking mechanism 4; a locking seat 401; a turret 402; a first pushing mechanism 403; a roller 404; a second pushing mechanism 405; a locking hook 406; a hooking pin 407; a fixing seat 5; a slewing mechanism 6; a gear 601; a rack 602; a third pushing mechanism 603; a chute 604; a slew bearing 605; a fourth pushing mechanism 7; a rotating shaft 8; a fixing mechanism 9; an expansion sleeve 901; a connecting ear 902; a connecting shaft 903; arcuate ring 904; a hinge shaft 905; an arcuate press block 906; a first bolt 907; a second bolt 908.
Detailed Description
Example 1
As shown in fig. 1-11, a turnover traveling device and a turnover traveling method of an oil cylinder of a hoist comprise a traveling platform 1, wherein one end of the traveling platform 1 is provided with a hinged turnover platform 2, a plurality of locking mechanisms 4 are arranged on the turnover platform 2, a rotatable fixing seat 5 is arranged on an installation platform 202 at the end part of the turnover platform 2, the end part of the oil cylinder 3 is fixed in the axial direction of the fixing seat 5, the oil cylinder 3 is abutted against the locking mechanisms 4 to be fixed in the radial direction, a fixing mechanism 9 is fixedly arranged on the oil cylinder 3, two expansion sleeves 901 in the fixing mechanism 9 are respectively fixed on a piston rod and a cylinder body of the oil cylinder 3, and the two expansion sleeves 901 are fixedly connected through a connecting shaft 903 so that the piston rod and the cylinder body of the oil cylinder 3 are fixedly connected;
The crane moves the vertical oil cylinder 3 to the turnover platform 2 to be fixed through the locking mechanism 4 and the fixed seat 5, releases the lifting rope of the crane and drives the walking platform 1 to move, so that the turnover platform 2 drives the oil cylinder 3 to rotate to lie on the walking platform 1, otherwise, the lifting rope of the winding crane drives the walking platform 1 to move, and the oil cylinder 3 lying on the walking platform 1 can be lifted to be in a vertical state. From this structure, carry out fixed connection through fixed establishment 9 to the piston rod and the cylinder body of hydro-cylinder 3 before hoist and mount upset hydro-cylinder 3, avoid the piston rod activity to break away from at hoist and mount upset in-process and cause danger, hydro-cylinder 3 is fixed on upset platform 2, accessible loop wheel machine hoist installation hydro-cylinder 3 tip to through release or rolling hoist lifting rope, can overturn horizontal hydro-cylinder 3 to vertical, perhaps overturn vertical hydro-cylinder 3 to the level, wherein hoist lifting rope moving speed need with walking platform 1 moving speed to match, guarantee hoist lifting rope and be in vertical hoist and mount, guarantee the safety of hydro-cylinder 3 upset.
In the preferred scheme, a plurality of rollers 102 are arranged around a first support frame 101 in a walking platform 1, the rollers 102 at one end of the first support frame 101 are connected through a drive axle 107, and a motor 108 is fixedly arranged on the drive axle 107;
The motor 108 rotates to drive the roller 102 to rotate through the driving axle 107, so as to enable the first supporting frame 101 to move, or the motor 108 locks the roller 102 to fix the first supporting frame 101. With this structure, the motor 108 drives the roller 102 to rotate through the drive axle 107, so that the walking platform 1 can be moved, so that the movement can be performed when the oil cylinder 3 is turned over, and the turning over of the oil cylinder 3 can be completed conveniently.
In the preferred scheme, a plurality of sleepers 103 are fixedly arranged on a first support frame 101, a turnover platform 2 horizontally abuts against the sleepers 103, first bearing seats 105 are arranged on two sides of the first support frame 101, and a second bearing seat 205 in the turnover platform 2 is hinged with the first bearing seats 105 through a rotating shaft 8. With the structure, the overturning platform 2 can be abutted against the sleeper 103 when hinged and overturned to be horizontal through the rotating shaft 8, so that the supporting stability is ensured, the stability of the oil cylinder 3 during overturning is ensured, and the stability of the travelling platform 1 for moving the transportation oil cylinder 3 is also ensured.
In the preferred scheme, a fourth pushing mechanism 7 is arranged between the walking platform 1 and the overturning platform 2, one end of the fourth pushing mechanism 7 is hinged on a hinge seat 104 in the walking platform 1, and the other end of the fourth pushing mechanism 7 is hinged on a pin 203 in the overturning platform 2. In this structure, the fourth pushing mechanism 7 is an oil cylinder, and can assist the hinged rotation between the walking platform 1 and the overturning platform 2, and can be used as pushing or buffering, so as to ensure the rotating stability of the overturning platform 2.
In the preferred scheme, a slewing mechanism 6 is arranged between an installation platform 202 and a fixed seat 5, a fixed end of a slewing bearing 605 in the slewing mechanism 6 is arranged on the installation platform 202, and the fixed seat 5 is arranged on a rotating end of the slewing bearing 605;
A gear 601 is arranged at the rotating end of the slewing bearing 605, a rack 602 meshed with the gear 601 is arranged on one side of the gear 601, and the rack 602 abuts against a sliding groove 604 to move. With the structure, the slewing bearing 605 ensures the smoothness of the rotation of the fixed seat 5, is convenient for adjusting the angle of the oil cylinder 3, is convenient for the installation and the disassembly of the lifting machine lifting appliance, and the rack 602 moves to drive the gear 601 meshed with the rack to rotate, namely, the fixed seat 5 on the slewing bearing 605 is driven to rotate, so that the operation is simple, convenient and reliable.
In the preferred scheme, a third pushing mechanism 603 is arranged between the chute 604 and the rack 602, one end of the third pushing mechanism 603 is hinged on the chute 604, and the other end is hinged on the rack 602;
The third pushing mechanism 603 drives the rack 602 to move in the chute 604, so as to drive the gear 601 meshed with the rack to rotate, and can drive the oil cylinder 3 on the fixed seat 5 to rotate. In this structure, the third pushing mechanism 603 is an oil cylinder, and is used for driving the rack 602 to move in the chute 604, and driving the gear 601 and the fixing seat 5 to rotate through the rack 602, so that the operation is simple, convenient and reliable.
In the preferred scheme, two rotating frames 402 which rotate relatively are arranged at the end part of a locking seat 401 in a locking mechanism 4, the rotating frames 402 are hinged with the locking seat 401, a first pushing mechanism 403 is arranged between the rotating frames 402 and the locking seat 401, one end of the first pushing mechanism 403 is hinged on the rotating frames 402, and the other end of the first pushing mechanism 403 is hinged on the locking seat 401;
The locking seat 401 and the rotating frame 402 are spliced into an inner circle, a plurality of rotatable rollers 404 are arranged on one side, close to the inner circle, of the locking seat 401 and the rotating frame 402, and the oil cylinder 3 abuts against the rollers 404 to rotate. Therefore, the locking seat 401 is fixed on the second supporting frame 201, when the oil cylinder 3 is installed, the rotating frames 402 on two sides are driven to be opened through the first pushing mechanism 403, the oil cylinder 3 can be abutted against the locking seat 401, the rotating frames 402 are driven to rotate and abutted against the oil cylinder 3, the fixing of the oil cylinder 3 can be completed, the operation is simple, convenient and reliable, the oil cylinder 3 is abutted against the rollers 404 to rotate more smoothly, damage to the oil cylinder 3 can not be caused by rotating connection, and the inner circle formed by splicing the locking seat 401 and the rotating frames 402 is matched with the outer diameter of the oil cylinder 3.
In a preferred scheme, a second pushing mechanism 405 is fixedly arranged at the end part of the rotating frame 402 on one side, a movable locking hook 406 is arranged at the end part of the second pushing mechanism 405, a hook pin 407 is fixedly arranged at the end part of the rotating frame 402 on the other side, and the locking hook 406 is abutted against the hook pin 407 to be fixed. With this structure, when the turret 402 is driven to rotate, the second pushing mechanism 405 drives the extension locking hook 406, and after the turret 402 abuts against the cylinder 3, the second pushing mechanism 405 drives the retraction locking hook 406, so that the locking hook 406 abuts against the hook pin 407, and further the cylinder 3 is fixed.
In the preferred scheme, connecting lugs 902 are arranged on two sides of an expanding sleeve 901, two ends of a connecting shaft 903 are fixed on the connecting lugs 902 through nuts, clamping rings in the expanding sleeve 901 are two arc-shaped rings 904, the two arc-shaped rings 904 are connected through a first bolt 907, one ends of the two clamping rings are hinged through a hinge shaft 905, the other ends of the two clamping rings are fixedly connected through a second bolt 908, an arc-shaped pressing block 906 is arranged on the inner side of each clamping ring, the cross section of each arc-shaped pressing block 906 is conical, and conical surfaces are abutted against the two arc-shaped rings 904;
the hinged clamping ring can be abutted against the piston rod and the cylinder body of the oil cylinder 3 for pre-fixing, and the first bolt 907 is adjusted to adjust the distance between the two arc rings 904, so that the arc pressing block 906 can be driven to shrink and abutted against the piston rod and the cylinder body of the oil cylinder 3 for fixing. According to the structure, the hinged clamping ring is abutted against the piston rod or the cylinder body of the oil cylinder 3, the hinged clamping ring is locked through the second bolt 908, the expansion sleeve 901 can be pre-fixed on the oil cylinder 3, then the expansion sleeve 901 on the piston rod and the cylinder body is connected through the connecting shaft 903, the arc-shaped ring 904 is contracted through screwing the first bolt 907, and accordingly the arc-shaped pressing block 906 is abutted against the piston rod or the cylinder body to be fixed, firm connection between the piston rod and the cylinder body is ensured, and danger caused by movable separation of the piston rod in the turning and overturning process of the oil cylinder 3 is avoided.
Example 2
As further described with reference to embodiment 1, as shown in fig. 1 to 11, a piston rod in an oil cylinder 3 of the hoist is contracted to the bottom, and then is respectively fixed on the piston rod and a cylinder body of the oil cylinder 3 through an expansion sleeve 901 in a fixing mechanism 4, and is connected through a connecting shaft 903, so that the piston rod is prevented from being movably separated from the cylinder body in the process of disassembling, assembling and transporting the oil cylinder 3; fixing a lifting rope on a crane on an oil cylinder 3 of a hoist, dismantling the oil cylinder 3, and transferring the dismantled oil cylinder 3 to a turnover platform 2 through the crane; the overturning platform 2 and the walking platform 1 are in a vertical state, the locking mechanism 4 on the overturning platform 2 is in an unfolding state, the vertically hoisted oil cylinder 3 horizontally enters the locking mechanism 4, then the lifting rope is released to enable the end part of the oil cylinder 3 to be clamped in the fixing seat 5 and fixed through the pin shaft, and the locking mechanism 4 is tightened to fix the oil cylinder 3; the third pushing mechanism 603 in the slewing mechanism 6 pushes the rack 602 to move, and drives the gear 601 and the fixed seat 5 to rotate, so that the oil cylinder 3 can be abutted against the roller 404 in the locking mechanism 4 to rotate, and the connection and the locking of the door hanger are facilitated; slowly releasing the lifting rope, relatively driving the traveling platform 1 to move, enabling the oil cylinder 3 to slowly incline to move to the horizontal, controlling the speed of releasing the lifting rope and the moving speed of the traveling platform 1 to achieve a balance, enabling the lifting rope to move in the vertical direction, and ensuring the overturning safety of the oil cylinder 3; when the horizontal oil cylinder 3 is turned to be vertical, the oil cylinder 3 is hoisted and fixed on the horizontal turning platform 2 to be fixed, then the door hoist is installed at the end part of the oil cylinder 3 by rotating the oil cylinder 3, the lifting rope is slowly wound, the traveling platform 1 is driven to move relatively, the oil cylinder 3 is slowly inclined to be vertical, the speed of the winding lifting rope and the moving speed of the traveling platform 1 are controlled to be balanced, the lifting rope is enabled to move in the vertical direction, and the turning safety of the oil cylinder 3 is ensured.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (7)
1. Overturn traveling device of hoist cylinder, characterized by: the device comprises a walking platform (1), wherein one end of the walking platform (1) is provided with a hinged overturning platform (2), the overturning platform (2) is provided with a plurality of locking mechanisms (4), a rotatable fixing seat (5) is arranged on a mounting platform (202) at the end part of the overturning platform (2), the end part of an oil cylinder (3) is fixed axially in the fixing seat (5), the oil cylinder (3) is abutted against the locking mechanisms (4) to be fixed radially, a fixing mechanism (9) is fixedly arranged on the oil cylinder (3), two expansion sleeves (901) in the fixing mechanism (9) are respectively fixed on a piston rod and a cylinder body of the oil cylinder (3), and the two expansion sleeves (901) are fixedly connected through a connecting shaft (903) so as to ensure that the piston rod of the oil cylinder (3) is fixedly connected with the cylinder body;
The crane moves the vertical oil cylinder (3) to the turnover platform (2) to be fixed through the locking mechanism (4) and the fixing seat (5), releases a lifting rope of the crane and drives the walking platform (1) to move, so that the turnover platform (2) drives the oil cylinder (3) to rotate to lie on the walking platform (1), otherwise, the lifting rope of the crane is wound and drives the walking platform (1) to move, and the oil cylinder (3) lying on the walking platform (1) can be lifted to be in a vertical state;
Two rotating frames (402) which rotate relatively are arranged at the end parts of a locking seat (401) in the locking mechanism (4), the rotating frames (402) are hinged with the locking seat (401), a first pushing mechanism (403) is arranged between the rotating frames (402) and the locking seat (401), one end of the first pushing mechanism (403) is hinged on the rotating frames (402), and the other end of the first pushing mechanism is hinged on the locking seat (401);
the locking seat (401) and the rotating frame (402) are spliced into an inner circle, a plurality of rotatable rollers (404) are arranged on one side, close to the inner circle, of the locking seat (401) and the rotating frame (402), and the oil cylinder (3) is abutted against the rollers (404) to rotate;
the end part of the rotating frame (402) on one side is fixedly provided with a second pushing mechanism (405), the end part of the second pushing mechanism (405) is provided with a movable locking hook (406), the end part of the rotating frame (402) on the other side is fixedly provided with a hook pin (407), and the locking hook (406) is abutted against the hook pin (407) to be fixed;
the two sides of the expansion sleeve (901) are provided with connecting lugs (902), two ends of the connecting shaft (903) are fixed on the connecting lugs (902) through nuts, the clamping rings in the expansion sleeve (901) are two arc-shaped rings (904), the two arc-shaped rings (904) are connected through a first bolt (907), one ends of the two clamping rings are hinged through a hinge shaft (905), the other ends of the two clamping rings are fixedly connected through a second bolt (908), an arc-shaped pressing block (906) is arranged on the inner side of the clamping ring, the cross section of the arc-shaped pressing block (906) is conical, and the conical surface is abutted against the two arc-shaped rings (904);
The hinged clamping ring can be abutted against a piston rod and a cylinder body of the oil cylinder (3) for pre-fixing, and the distance between the two arc rings (904) can be adjusted by adjusting the first bolt (907), so that the arc pressing block (906) can be driven to shrink and abutted against the piston rod and the cylinder body of the oil cylinder (3) for fixing.
2. The overturn traveling device of the hoist cylinder according to claim 1, characterized in that: a plurality of rollers (102) are arranged around a first supporting frame (101) in the walking platform (1), the rollers (102) at one end of the first supporting frame (101) are connected through a driving axle (107), and a motor (108) is fixedly arranged on the driving axle (107);
The motor (108) rotates to drive the roller (102) to rotate through the drive axle (107) so as to enable the first support frame (101) to move, or the motor (108) locks the roller (102) to fix the first support frame (101).
3. The overturn traveling device of the hoist cylinder according to claim 2, characterized in that: a plurality of sleepers (103) are fixedly arranged on the first support frame (101), the overturning platform (2) horizontally abuts against the sleepers (103), first bearing seats (105) are arranged on two sides of the first support frame (101), and second bearing seats (205) in the overturning platform (2) are hinged with the first bearing seats (105) through rotating shafts (8).
4. The overturn traveling device of the hoist cylinder according to claim 1, characterized in that: a fourth pushing mechanism (7) is arranged between the walking platform (1) and the overturning platform (2), one end of the fourth pushing mechanism (7) is hinged on a hinge seat (104) in the walking platform (1), and the other end of the fourth pushing mechanism is hinged on a pin shaft (203) in the overturning platform (2).
5. The overturn traveling device of the hoist cylinder according to claim 1, characterized in that: a slewing mechanism (6) is arranged between the mounting platform (202) and the fixed seat (5), the fixed end of a slewing bearing (605) in the slewing mechanism (6) is arranged on the mounting platform (202), and the fixed seat (5) is arranged on the rotating end of the slewing bearing (605);
The rotating end of the slewing bearing (605) is provided with a gear (601), one side of the gear (601) is provided with a rack (602) meshed with the gear, and the rack (602) abuts against the sliding groove (604) to move.
6. The overturn traveling device of the hoist cylinder according to claim 5, wherein: a third pushing mechanism (603) is arranged between the sliding groove (604) and the rack (602), one end of the third pushing mechanism (603) is hinged on the sliding groove (604), and the other end of the third pushing mechanism is hinged on the rack (602);
The third pushing mechanism (603) drives the rack (602) to move in the chute (604), so as to drive the gear (601) meshed with the rack to rotate and drive the oil cylinder (3) on the fixed seat (5) to rotate.
7. The method for turning over the traveling device of the hoist cylinder according to any one of claims 1 to 6, comprising the following steps: s1, a piston rod in an oil cylinder (3) of the hoist is contracted to the bottom, and then the piston rod and a cylinder body of the oil cylinder (3) are respectively fixed through an expansion sleeve (901) in a fixing mechanism (4) and are connected through a connecting shaft (903), so that the piston rod can be prevented from being movably separated from the cylinder body in the process of disassembling and transporting the oil cylinder (3);
s2, fixing a lifting rope on a crane on an oil cylinder (3) of the hoist, dismantling the oil cylinder (3), and transferring the dismantled oil cylinder (3) to the overturning platform (2) through the crane;
s3, the overturning platform (2) is in a vertical state with the walking platform (1), the locking mechanism (4) on the overturning platform (2) is in an unfolding state, the vertically hoisted oil cylinder (3) horizontally enters the locking mechanism (4), then the lifting rope is released to enable the end part of the oil cylinder (3) to be clamped in the fixed seat (5), and the oil cylinder (3) is fixed through the pin shaft, and the locking mechanism (4) is tightened to fix the oil cylinder (3);
S4, pushing the rack (602) to move through a third pushing mechanism (603) in the slewing mechanism (6) to drive the gear (601) and the fixed seat (5) to rotate, so that the oil cylinder (3) can be abutted against a roller (404) in the locking mechanism (4) to rotate, and the connection and locking of a door hanger are facilitated;
S5, slowly releasing the lifting rope, relatively driving the traveling platform (1) to move, enabling the oil cylinder (3) to slowly incline to move to the horizontal, controlling the speed of releasing the lifting rope and the moving speed of the traveling platform (1) to achieve a balance, enabling the lifting rope to move in the vertical direction, and guaranteeing the overturning safety of the oil cylinder (3);
S6, when the horizontal oil cylinder (3) is overturned to be vertical, the oil cylinder (3) is hoisted and fixed on the horizontal overturning platform (2) firstly, then the door hoist is installed at the end part of the oil cylinder (3), the lifting rope is slowly wound, the walking platform (1) is driven to move relatively, the oil cylinder (3) is slowly inclined to move to be vertical, the speed of the winding lifting rope and the moving speed of the walking platform (1) are controlled to be balanced, the lifting rope is enabled to move in the vertical direction, and the overturned safety of the oil cylinder (3) is ensured.
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| CN116142970B (en) * | 2022-12-03 | 2024-04-16 | 中国长江电力股份有限公司 | Turning operation equipment and method for large hydraulic cylinder of hydropower station |
| CN116239016B (en) * | 2022-12-03 | 2024-04-12 | 中国长江电力股份有限公司 | Heavy oil cylinder hoisting and overturning tool and method |
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